try bumping version to 2 in tests

- vercel@20.0.0-canary.1

.editorconfig

@@ -19,6 +19,11 @@ indent_style = space
 [*.py]
 indent_size = 4
 
+[*.go]
+indent_style = tab
+indent_size = 4
+tab_width = 4
+
 [*.asm]
 indent_size = 8
 

errors/domain-verification.md

@@ -2,16 +2,14 @@
 
 #### Why This Error Occurred
 
-The domain you supplied cannot be verified using either the intended set of nameservers or the given verification TXT record.
+The domain you supplied cannot be verified using the intended nameservers.
 
-#### Possible Ways to Fix It
+#### Possible Way to Fix It
 
-Apply the intended set of nameservers to your domain or add the given TXT verification record through your domain provider.
+Apply the intended set of nameservers to your domain.
 
 You can retrieve both the intended nameservers and TXT verification record for the domain you wish to verify by running `vercel domains inspect <domain>`.
 
-When you have added either verification method to your domain, you can run `vercel domains verify <domain>` again to complete verification for your domain.
-
 Vercel will also automatically check periodically that your domain has been verified and automatically mark it as such if we detect either verification method on the domain.
 
 If you would not like to verify your domain, you can remove it from your account using `vercel domains rm <domain>`.

packages/now-cli/package.json

@@ -1,6 +1,6 @@
 {
   "name": "vercel",
-  "version": "19.2.0",
+  "version": "20.0.0-canary.1",
   "preferGlobal": true,
   "license": "Apache-2.0",
   "description": "The command-line interface for Vercel",
@@ -63,12 +63,12 @@
   },
   "dependencies": {
     "@vercel/build-utils": "2.4.2",
-    "@vercel/go": "1.1.4",
-    "@vercel/next": "2.6.13",
-    "@vercel/node": "1.7.3",
+    "@vercel/go": "1.1.5-canary.0",
+    "@vercel/next": "2.6.14-canary.1",
+    "@vercel/node": "1.7.4-canary.0",
     "@vercel/python": "1.2.2",
     "@vercel/ruby": "1.2.3",
-    "@vercel/static-build": "0.17.6",
+    "@vercel/static-build": "0.17.7-canary.0",
     "update-notifier": "4.1.0"
   },
   "devDependencies": {
@@ -120,7 +120,7 @@
     "chalk": "2.4.2",
     "chokidar": "3.3.1",
     "clipboardy": "2.1.0",
-    "codecov": "3.6.5",
+    "codecov": "3.7.1",
     "cpy": "7.2.0",
     "credit-card": "3.0.1",
     "date-fns": "1.29.0",

packages/now-cli/src/commands/dev/dev.ts

@@ -8,14 +8,15 @@ import Client from '../../util/client';
 import { getLinkedProject } from '../../util/projects/link';
 import { getFrameworks } from '../../util/get-frameworks';
 import { isSettingValue } from '../../util/is-setting-value';
-import { getCommandName } from '../../util/pkg-name';
 import { ProjectSettings, ProjectEnvTarget } from '../../types';
 import getDecryptedEnvRecords from '../../util/get-decrypted-env-records';
 import { Env } from '@vercel/build-utils';
+import setupAndLink from '../../util/link/setup-and-link';
 
 type Options = {
   '--debug'?: boolean;
   '--listen'?: string;
+  '--confirm': boolean;
 };
 
 export default async function dev(
@@ -37,20 +38,33 @@ export default async function dev(
   });
 
   // retrieve dev command
-  const [link, frameworks] = await Promise.all([
+  let [link, frameworks] = await Promise.all([
     getLinkedProject(output, client, cwd),
     getFrameworks(client),
   ]);
 
-  if (link.status === 'error') {
-    return link.exitCode;
+  if (link.status === 'not_linked' && !process.env.__VERCEL_SKIP_DEV_CMD) {
+    const autoConfirm = opts['--confirm'];
+    const forceDelete = false;
+
+    link = await setupAndLink(
+      ctx,
+      output,
+      cwd,
+      forceDelete,
+      autoConfirm,
+      'link',
+      'Set up and develop'
+    );
+
+    if (link.status === 'not_linked') {
+      // User aborted project linking questions
+      return 0;
+    }
   }
 
-  if (link.status === 'not_linked' && !process.env.__VERCEL_SKIP_DEV_CMD) {
-    output.error(
-      `Your codebase isn’t linked to a project on Vercel. Run ${getCommandName()} to link it.`
-    );
-    return 1;
+  if (link.status === 'error') {
+    return link.exitCode;
   }
 
   let devCommand: string | undefined;

packages/now-cli/src/commands/dev/index.ts

@@ -32,6 +32,7 @@ const help = () => {
     -d, --debug            Debug mode [off]
     -l, --listen  [uri]    Specify a URI endpoint on which to listen [0.0.0.0:3000]
     -t, --token   [token]  Specify an Authorization Token
+    --confirm              Skip questions and use defaults when setting up a new project
 
   ${chalk.dim('Examples:')}
 
@@ -56,6 +57,7 @@ export default async function main(ctx: NowContext) {
     argv = getArgs(ctx.argv.slice(2), {
       '--listen': String,
       '-l': '--listen',
+      '--confirm': Boolean,
 
       // Deprecated
       '--port': Number,

packages/now-cli/src/commands/domains/add.ts

@@ -1,23 +1,24 @@
 import chalk from 'chalk';
-import psl from 'psl';
 
 import { NowContext } from '../../types';
 import { Output } from '../../util/output';
 import * as ERRORS from '../../util/errors-ts';
-import addDomain from '../../util/domains/add-domain';
 import Client from '../../util/client';
-import cmd from '../../util/output/cmd';
-import formatDnsTable from '../../util/format-dns-table';
 import formatNSTable from '../../util/format-ns-table';
 import getScope from '../../util/get-scope';
 import stamp from '../../util/output/stamp';
-import param from '../../util/output/param';
-import { getCommandName, getTitleName } from '../../util/pkg-name';
+import { getCommandName } from '../../util/pkg-name';
+import { getDomain } from '../../util/domains/get-domain';
+import { getLinkedProject } from '../../util/projects/link';
+import { isPublicSuffix } from '../../util/domains/is-public-suffix';
+import { getDomainConfig } from '../../util/domains/get-domain-config';
+import { addDomainToProject } from '../../util/projects/add-domain-to-project';
+import { removeDomainFromProject } from '../../util/projects/remove-domain-from-project';
+import code from '../../util/output/code';
 
 type Options = {
-  '--cdn': boolean;
   '--debug': boolean;
-  '--no-cdn': boolean;
+  '--force': boolean;
 };
 
 export default async function add(
@@ -33,6 +34,7 @@ export default async function add(
   const { currentTeam } = config;
   const { apiUrl } = ctx;
   const debug = opts['--debug'];
+  const force = opts['--force'];
   const client = new Client({ apiUrl, token, currentTeam, debug });
   let contextName = null;
 
@@ -47,105 +49,116 @@ export default async function add(
     throw err;
   }
 
-  if (opts['--cdn'] !== undefined || opts['--no-cdn'] !== undefined) {
-    output.error(`Toggling CF from ${getTitleName()} CLI is deprecated.`);
-    return 1;
-  }
+  const project = await getLinkedProject(output, client).then(result => {
+    if (result.status === 'linked') {
+      return result.project;
+    }
 
-  if (args.length !== 1) {
+    return null;
+  });
+
+  if (project && args.length !== 1) {
     output.error(
-      `${getCommandName('domains add <domain>')} expects one argument`
+      `${getCommandName('domains add <domain>')} expects one argument.`
+    );
+    return 1;
+  } else if (!project && args.length !== 2) {
+    output.error(
+      `${getCommandName(
+        'domains add <domain> <project>'
+      )} expects two arguments.`
     );
     return 1;
   }
 
   const domainName = String(args[0]);
-  const parsedDomain = psl.parse(domainName);
-  if (parsedDomain.error) {
-    output.error(`The provided domain name ${param(domainName)} is invalid`);
-    return 1;
-  }
-
-  const { domain, subdomain } = parsedDomain;
-  if (!domain) {
-    output.error(`The provided domain '${param(domainName)}' is not valid.`);
-    return 1;
-  }
-
-  if (subdomain) {
-    output.error(
-      `You are adding '${domainName}' as a domain name containing a subdomain part '${subdomain}'\n` +
-        `  This feature is deprecated, please add just the root domain: ${chalk.cyan(
-          `${getCommandName(`domain add ${domain}`)}`
-        )}`
-    );
-    return 1;
-  }
+  const projectName = project ? project.name : String(args[1]);
 
   const addStamp = stamp();
-  const addedDomain = await addDomain(client, domainName, contextName);
 
-  if (addedDomain instanceof ERRORS.InvalidDomain) {
-    output.error(
-      `The provided domain name "${addedDomain.meta.domain}" is invalid`
-    );
-    return 1;
-  }
+  let aliasTarget = await addDomainToProject(client, projectName, domainName);
 
-  if (addedDomain instanceof ERRORS.DomainAlreadyExists) {
-    output.error(
-      `The domain ${chalk.underline(
-        addedDomain.meta.domain
-      )} is already registered by a different account.\n` +
-        `  If this seems like a mistake, please contact us at support@vercel.com`
-    );
-    return 1;
+  if (aliasTarget instanceof Error) {
+    if (
+      aliasTarget instanceof ERRORS.APIError &&
+      aliasTarget.code === 'ALIAS_DOMAIN_EXIST' &&
+      aliasTarget.project &&
+      aliasTarget.project.id
+    ) {
+      if (force) {
+        const removeResponse = await removeDomainFromProject(
+          client,
+          aliasTarget.project.id,
+          domainName
+        );
+
+        if (removeResponse instanceof Error) {
+          output.prettyError(removeResponse);
+          return 1;
+        }
+
+        aliasTarget = await addDomainToProject(client, projectName, domainName);
+      }
+    }
+
+    if (aliasTarget instanceof Error) {
+      output.prettyError(aliasTarget);
+      return 1;
+    }
   }
 
   // We can cast the information because we've just added the domain and it should be there
   console.log(
     `${chalk.cyan('> Success!')} Domain ${chalk.bold(
-      addedDomain.name
-    )} added correctly. ${addStamp()}\n`
+      domainName
+    )} added to project ${chalk.bold(projectName)}. ${addStamp()}`
   );
 
-  if (!addedDomain.verified) {
+  if (isPublicSuffix(domainName)) {
+    output.log(
+      `The domain will automatically get assigned to your latest production deployment.`
+    );
+    return 0;
+  }
+
+  const domainResponse = await getDomain(client, contextName, domainName);
+
+  if (domainResponse instanceof Error) {
+    output.prettyError(domainResponse);
+    return 1;
+  }
+
+  const domainConfig = await getDomainConfig(client, contextName, domainName);
+
+  if (domainConfig.misconfigured) {
     output.warn(
-      `The domain was added but it is not verified. To verify it, you should either:`
+      `This domain is not configured properly. To configure it you should either:`
     );
     output.print(
-      `  ${chalk.gray(
-        'a)'
-      )} Change your domain nameservers to the following intended set: ${chalk.gray(
-        '[recommended]'
-      )}\n`
+      `  ${chalk.grey('a)')} ` +
+        `Set the following record on your DNS provider to continue: ` +
+        `${code(`A ${domainName} 76.76.21.21`)} ` +
+        `${chalk.grey('[recommended]')}\n`
+    );
+    output.print(
+      `  ${chalk.grey('b)')} ` +
+        `Change your domain nameservers to the intended set`
     );
     output.print(
       `\n${formatNSTable(
-        addedDomain.intendedNameservers,
-        addedDomain.nameservers,
+        domainResponse.intendedNameservers,
+        domainResponse.nameservers,
         { extraSpace: '     ' }
       )}\n\n`
     );
-    output.print(
-      `  ${chalk.gray(
-        'b)'
-      )} Add a DNS TXT record with the name and value shown below.\n`
-    );
-    output.print(
-      `\n${formatDnsTable([['_now', 'TXT', addedDomain.verificationRecord]], {
-        extraSpace: '     ',
-      })}\n\n`
-    );
     output.print(
       `  We will run a verification for you and you will receive an email upon completion.\n`
     );
-    output.print(
-      `  If you want to force running a verification, you can run ${cmd(
-        `${getCommandName('domains verify <domain>')}`
-      )}\n`
+    output.print('  Read more: https://vercel.link/domain-configuration\n\n');
+  } else {
+    output.log(
+      `The domain will automatically get assigned to your latest production deployment.`
     );
-    output.print('  Read more: https://err.sh/now/domain-verification\n\n');
   }
 
   return 0;

packages/now-cli/src/commands/domains/index.ts

@@ -13,7 +13,6 @@ import transferIn from './transfer-in';
 import inspect from './inspect';
 import ls from './ls';
 import rm from './rm';
-import verify from './verify';
 import move from './move';
 import { getPkgName } from '../../util/pkg-name';
 
@@ -25,17 +24,17 @@ const help = () => {
 
     ls                                  Show all domains in a list
     inspect      [name]                 Displays information related to a domain
-    add          [name]                 Add a new domain that you already own
+    add          [name] [project]       Add a new domain that you already own
     rm           [name]                 Remove a domain
     buy          [name]                 Buy a domain that you don't yet own
     move         [name] [destination]   Move a domain to another user or team.
     transfer-in  [name]                 Transfer in a domain to Vercel
-    verify       [name]                 Run a verification for a domain
 
   ${chalk.dim('Options:')}
 
     -h, --help                     Output usage information
     -d, --debug                    Debug mode [off]
+    -f, --force                    Force a domain on a project and remove it from an existing one
     -A ${chalk.bold.underline('FILE')}, --local-config=${chalk.bold.underline(
     'FILE'
   )}   Path to the local ${'`vercel.json`'} file
@@ -82,7 +81,6 @@ const COMMAND_CONFIG = {
   move: ['move'],
   rm: ['rm', 'remove'],
   transferIn: ['transfer-in'],
-  verify: ['verify'],
 };
 
 export default async function main(ctx: NowContext) {
@@ -90,10 +88,9 @@ export default async function main(ctx: NowContext) {
 
   try {
     argv = getArgs(ctx.argv.slice(2), {
-      '--cdn': Boolean,
       '--code': String,
-      '--no-cdn': Boolean,
       '--yes': Boolean,
+      '--force': Boolean,
       '--next': Number,
       '-N': '--next',
     });
@@ -122,8 +119,6 @@ export default async function main(ctx: NowContext) {
       return rm(ctx, argv, args, output);
     case 'transferIn':
       return transferIn(ctx, argv, args, output);
-    case 'verify':
-      return verify(ctx, argv, args, output);
     default:
       return ls(ctx, argv, args, output);
   }

packages/now-cli/src/commands/domains/inspect.ts

@@ -4,13 +4,16 @@ import { NowContext } from '../../types';
 import { Output } from '../../util/output';
 import Client from '../../util/client';
 import stamp from '../../util/output/stamp';
-import dnsTable from '../../util/format-dns-table';
 import formatDate from '../../util/format-date';
 import formatNSTable from '../../util/format-ns-table';
 import getDomainByName from '../../util/domains/get-domain-by-name';
 import getScope from '../../util/get-scope';
+import formatTable from '../../util/format-table';
+import { findProjectsForDomain } from '../../util/projects/find-projects-for-domain';
 import getDomainPrice from '../../util/domains/get-domain-price';
 import { getCommandName } from '../../util/pkg-name';
+import { getDomainConfig } from '../../util/domains/get-domain-config';
+import code from '../../util/output/code';
 
 type Options = {
   '--debug': boolean;
@@ -70,7 +73,7 @@ export default async function inspect(
       .then(res => (res instanceof Error ? null : res.price))
       .catch(() => null),
   ]);
-  if (domain instanceof DomainNotFound) {
+  if (!domain || domain instanceof DomainNotFound) {
     output.error(
       `Domain not found by "${domainName}" under ${chalk.bold(contextName)}`
     );
@@ -88,6 +91,15 @@ export default async function inspect(
     return 1;
   }
 
+  const projects = await findProjectsForDomain(client, domainName);
+
+  if (projects instanceof Error) {
+    output.prettyError(projects);
+    return 1;
+  }
+
+  const domainConfig = await getDomainConfig(client, contextName, domainName);
+
   output.log(
     `Domain ${domainName} found under ${chalk.bold(contextName)} ${chalk.gray(
       inspectStamp()
@@ -129,6 +141,7 @@ export default async function inspect(
       domain.txtVerifiedAt
     )}\n`
   );
+
   if (renewalPrice && domain.boughtAt) {
     output.print(
       `    ${chalk.cyan('Renewal Price')}\t\t$${renewalPrice} USD\n`
@@ -145,37 +158,57 @@ export default async function inspect(
   );
   output.print('\n');
 
-  output.print(chalk.bold('  Verification Record\n\n'));
-  output.print(
-    `${dnsTable([['_now', 'TXT', domain.verificationRecord]], {
-      extraSpace: '    ',
-    })}\n`
-  );
-  output.print('\n');
-
-  if (!domain.verified) {
-    output.warn(`This domain is not verified. To verify it you should either:`);
-    output.print(
-      `  ${chalk.gray(
-        'a)'
-      )} Change your domain nameservers to the intended set detailed above. ${chalk.gray(
-        '[recommended]'
-      )}\n`
+  if (domainConfig.misconfigured) {
+    output.warn(
+      `This domain is not configured properly. To configure it you should either:`
     );
     output.print(
-      `  ${chalk.gray(
-        'b)'
-      )} Add a DNS TXT record with the name and value shown above.\n\n`
+      `  ${chalk.grey('a)')} ` +
+        `Set the following record on your DNS provider to continue: ` +
+        `${code(`A ${domainName} 76.76.21.21`)} ` +
+        `${chalk.grey('[recommended]')}\n`
+    );
+    output.print(
+      `  ${chalk.grey('b)')} ` +
+        `Change your domain nameservers to the intended set detailed above.\n\n`
     );
     output.print(
       `  We will run a verification for you and you will receive an email upon completion.\n`
     );
-    output.print(
-      `  If you want to force running a verification, you can run ${getCommandName(
-        `domains verify <domain>`
-      )}\n`
+    output.print('  Read more: https://vercel.link/domain-configuration\n\n');
+  }
+
+  if (Array.isArray(projects) && projects.length > 0) {
+    output.print(chalk.bold('  Projects\n'));
+
+    const table = formatTable(
+      ['Project', 'Domains'],
+      ['l', 'l'],
+      [
+        {
+          rows: projects.map(project => {
+            const name = project.name;
+
+            const domains = (project.alias || [])
+              .map(target => target.domain)
+              .filter(alias => alias.endsWith(domainName));
+
+            const cols = domains.length ? domains.join(', ') : '-';
+
+            return [name, cols];
+          }),
+        },
+      ]
     );
-    output.print('  Read more: https://err.sh/now/domain-verification\n\n');
+
+    output.print(
+      table
+        .split('\n')
+        .map(line => `   ${line}`)
+        .join('\n')
+    );
+
+    output.print('\n\n');
   }
 
   return null;

packages/now-cli/src/commands/domains/ls.ts

@@ -1,22 +1,37 @@
 import ms from 'ms';
+import psl from 'psl';
 import chalk from 'chalk';
-import table from 'text-table';
+import plural from 'pluralize';
 
 import Client from '../../util/client';
 import getDomains from '../../util/domains/get-domains';
 import getScope from '../../util/get-scope';
 import stamp from '../../util/output/stamp';
-import strlen from '../../util/strlen';
 import { Output } from '../../util/output';
-import { Domain, NowContext } from '../../types';
+import formatTable from '../../util/format-table';
+import { formatDateWithoutTime } from '../../util/format-date';
+import { Domain, Project, NowContext } from '../../types';
+import { getProjectsWithDomains } from '../../util/projects/get-projects-with-domains';
 import getCommandFlags from '../../util/get-command-flags';
 import { getCommandName } from '../../util/pkg-name';
+import isDomainExternal from '../../util/domains/is-domain-external';
+import { isPublicSuffix } from '../../util/domains/is-public-suffix';
 
 type Options = {
   '--debug': boolean;
   '--next': number;
 };
 
+interface DomainInfo {
+  domain: string;
+  apexDomain: string;
+  projectName: string | null;
+  dns: 'Vercel' | 'External';
+  configured: boolean;
+  expiresAt: number | null;
+  createdAt: number | null;
+}
+
 export default async function ls(
   ctx: NowContext,
   opts: Options,
@@ -60,16 +75,31 @@ export default async function ls(
     return 1;
   }
 
-  const { domains, pagination } = await getDomains(
-    client,
-    contextName,
-    nextTimestamp
-  );
+  const [{ domains, pagination }, projects] = await Promise.all([
+    getDomains(client, contextName),
+    getProjectsWithDomains(client),
+  ] as const);
+
+  if (projects instanceof Error) {
+    output.prettyError(projects);
+    return 1;
+  }
+
+  const domainsInfo = createDomainsInfo(domains, projects);
+
   output.log(
-    `Domains found under ${chalk.bold(contextName)} ${chalk.gray(lsStamp())}\n`
+    `${plural(
+      'project domain',
+      domainsInfo.length,
+      true
+    )} found under ${chalk.bold(contextName)} ${chalk.gray(lsStamp())}`
   );
-  if (domains.length > 0) {
-    console.log(`${formatDomainsTable(domains)}\n`);
+
+  if (domainsInfo.length > 0) {
+    output.print(
+      formatDomainsTable(domainsInfo).replace(/^(.*)/gm, `${' '.repeat(3)}$1`)
+    );
+    output.print('\n\n');
   }
 
   if (pagination && pagination.count === 20) {
@@ -84,28 +114,92 @@ export default async function ls(
   return 0;
 }
 
-function formatDomainsTable(domains: Domain[]) {
-  const current = new Date();
-  return table(
-    [
-      [
-        '',
-        chalk.gray('domain'),
-        chalk.gray('serviceType'),
-        chalk.gray('verified'),
-        chalk.gray('cdn'),
-        chalk.gray('age'),
-      ].map(s => chalk.dim(s)),
-      ...domains.map(domain => {
-        const url = chalk.bold(domain.name);
-        const time = chalk.gray(ms(current.getTime() - domain.createdAt));
-        return ['', url, domain.serviceType, domain.verified, true, time];
-      }),
-    ],
-    {
-      align: ['l', 'l', 'l', 'l', 'l'],
-      hsep: ' '.repeat(4),
-      stringLength: strlen,
+function createDomainsInfo(domains: Domain[], projects: Project[]) {
+  const info = new Map<string, DomainInfo>();
+
+  domains.forEach(domain => {
+    info.set(domain.name, {
+      domain: domain.name,
+      apexDomain: domain.name,
+      projectName: null,
+      expiresAt: domain.expiresAt || null,
+      createdAt: domain.createdAt,
+      configured: Boolean(domain.verified),
+      dns: isDomainExternal(domain) ? 'External' : 'Vercel',
+    });
+
+    projects.forEach(project => {
+      (project.alias || []).forEach(target => {
+        if (!target.domain.endsWith(domain.name)) return;
+
+        info.set(target.domain, {
+          domain: target.domain,
+          apexDomain: domain.name,
+          projectName: project.name,
+          expiresAt: domain.expiresAt || null,
+          createdAt: domain.createdAt || target.createdAt || null,
+          configured: Boolean(domain.verified),
+          dns: isDomainExternal(domain) ? 'External' : 'Vercel',
+        });
+      });
+    });
+  });
+
+  projects.forEach(project => {
+    (project.alias || []).forEach(target => {
+      if (info.has(target.domain)) return;
+
+      const { domain: apexDomain } = psl.parse(
+        target.domain
+      ) as psl.ParsedDomain;
+
+      info.set(target.domain, {
+        domain: target.domain,
+        apexDomain: apexDomain || target.domain,
+        projectName: project.name,
+        expiresAt: null,
+        createdAt: target.createdAt || null,
+        configured: isPublicSuffix(target.domain),
+        dns: isPublicSuffix(target.domain) ? 'Vercel' : 'External',
+      });
+    });
+  });
+
+  const list = Array.from(info.values());
+
+  return list.sort((a, b) => {
+    if (a.apexDomain === b.apexDomain) {
+      if (a.apexDomain === a.domain) return -1;
+      if (b.apexDomain === b.domain) return 1;
+      return a.domain.localeCompare(b.domain);
     }
-  );
+
+    return a.apexDomain.localeCompare(b.apexDomain);
+  });
+}
+
+function formatDomainsTable(domainsInfo: DomainInfo[]) {
+  const current = Date.now();
+
+  const rows: string[][] = domainsInfo.map(info => {
+    const expiration = formatDateWithoutTime(info.expiresAt);
+    const age = info.createdAt ? ms(current - info.createdAt) : '-';
+
+    return [
+      info.domain,
+      info.projectName || '-',
+      info.dns,
+      expiration,
+      info.configured.toString(),
+      chalk.gray(age),
+    ];
+  });
+
+  const table = formatTable(
+    ['domain', 'project', 'dns', 'expiration', 'configured', 'age'],
+    ['l', 'l', 'l', 'l', 'l', 'l'],
+    [{ rows }]
+  );
+
+  return table;
 }

packages/now-cli/src/commands/domains/rm.ts

@@ -15,6 +15,7 @@ import * as ERRORS from '../../util/errors-ts';
 import param from '../../util/output/param';
 import promptBool from '../../util/input/prompt-bool';
 import setCustomSuffix from '../../util/domains/set-custom-suffix';
+import { findProjectsForDomain } from '../../util/projects/find-projects-for-domain';
 import { getCommandName } from '../../util/pkg-name';
 
 type Options = {
@@ -67,7 +68,7 @@ export default async function rm(
   }
 
   const domain = await getDomainByName(client, contextName, domainName);
-  if (domain instanceof DomainNotFound) {
+  if (domain instanceof DomainNotFound || domain.name !== domainName) {
     output.error(
       `Domain not found by "${domainName}" under ${chalk.bold(contextName)}`
     );
@@ -85,6 +86,18 @@ export default async function rm(
     return 1;
   }
 
+  const projects = await findProjectsForDomain(client, domain.name);
+
+  if (Array.isArray(projects) && projects.length > 0) {
+    output.warn(
+      `The domain is currently used by ${plural(
+        'project',
+        projects.length,
+        true
+      )}.`
+    );
+  }
+
   const skipConfirmation = opts['--yes'];
   if (
     !skipConfirmation &&

packages/now-cli/src/commands/domains/verify.ts

@@ -1,147 +0,0 @@
-import chalk from 'chalk';
-import { NowContext } from '../../types';
-import { Output } from '../../util/output';
-import * as ERRORS from '../../util/errors-ts';
-import Client from '../../util/client';
-import formatDnsTable from '../../util/format-dns-table';
-import formatNSTable from '../../util/format-ns-table';
-import getDomainByName from '../../util/domains/get-domain-by-name';
-import getScope from '../../util/get-scope';
-import stamp from '../../util/output/stamp';
-import verifyDomain from '../../util/domains/verify-domain';
-import { getCommandName } from '../../util/pkg-name';
-
-type Options = {
-  '--debug': boolean;
-};
-
-export default async function verify(
-  ctx: NowContext,
-  opts: Options,
-  args: string[],
-  output: Output
-) {
-  const {
-    authConfig: { token },
-    config,
-  } = ctx;
-  const { currentTeam } = config;
-  const { apiUrl } = ctx;
-  const debug = opts['--debug'];
-  const client = new Client({ apiUrl, token, currentTeam, debug });
-
-  let contextName = null;
-
-  try {
-    ({ contextName } = await getScope(client));
-  } catch (err) {
-    if (err.code === 'NOT_AUTHORIZED' || err.code === 'TEAM_DELETED') {
-      output.error(err.message);
-      return 1;
-    }
-
-    throw err;
-  }
-
-  const [domainName] = args;
-
-  if (!domainName) {
-    output.error(
-      `${getCommandName(`domains verify <domain>`)} expects one argument`
-    );
-    return 1;
-  }
-
-  if (args.length !== 1) {
-    output.error(
-      `Invalid number of arguments. Usage: ${chalk.cyan(
-        `${getCommandName('domains verify <domain>')}`
-      )}`
-    );
-    return 1;
-  }
-
-  const domain = await getDomainByName(client, contextName, domainName);
-  if (domain instanceof ERRORS.DomainNotFound) {
-    output.error(
-      `Domain not found by "${domainName}" under ${chalk.bold(contextName)}`
-    );
-    output.log(`Run ${getCommandName(`domains ls`)} to see your domains.`);
-    return 1;
-  }
-
-  if (domain instanceof ERRORS.DomainPermissionDenied) {
-    output.error(
-      `You don't have access to the domain ${domainName} under ${chalk.bold(
-        contextName
-      )}`
-    );
-    output.log(`Run ${getCommandName(`domains ls`)} to see your domains.`);
-    return 1;
-  }
-
-  const verifyStamp = stamp();
-  const result = await verifyDomain(client, domain.name, contextName);
-  if (result instanceof ERRORS.DomainVerificationFailed) {
-    const { nsVerification, txtVerification } = result.meta;
-    output.error(
-      `The domain ${
-        domain.name
-      } could not be verified due to the following reasons: ${verifyStamp()}\n`
-    );
-    output.print(
-      `  ${chalk.gray(
-        'a)'
-      )} Nameservers verification failed since we see a different set than the intended set:`
-    );
-    output.print(
-      `\n${formatNSTable(
-        nsVerification.intendedNameservers,
-        nsVerification.nameservers,
-        { extraSpace: '     ' }
-      )}\n\n`
-    );
-    output.print(
-      `  ${chalk.gray(
-        'b)'
-      )} DNS TXT verification failed since found no matching records.`
-    );
-    output.print(
-      `\n${formatDnsTable(
-        [['_now', 'TXT', txtVerification.verificationRecord]],
-        { extraSpace: '     ' }
-      )}\n\n`
-    );
-    output.print(
-      `  Once your domain uses either the nameservers or the TXT DNS record from above, run again ${getCommandName(
-        `domains verify <domain>`
-      )}.\n`
-    );
-    output.print(
-      `  We will also periodically run a verification check for you and you will receive an email once your domain is verified.\n`
-    );
-    output.print('  Read more: https://err.sh/now/domain-verification\n\n');
-    return 1;
-  }
-
-  if (result.nsVerifiedAt) {
-    console.log(
-      `${chalk.cyan('> Success!')} Domain ${chalk.bold(
-        domain.name
-      )} was verified using nameservers. ${verifyStamp()}`
-    );
-    return 0;
-  }
-
-  console.log(
-    `${chalk.cyan('> Success!')} Domain ${chalk.bold(
-      domain.name
-    )} was verified using DNS TXT record. ${verifyStamp()}`
-  );
-  output.print(
-    `  You can verify with nameservers too. Run ${getCommandName(
-      `domains inspect ${domain.name}`
-    )} to find out the intended set.\n`
-  );
-  return 0;
-}

packages/now-cli/src/commands/env/index.ts

@@ -124,7 +124,9 @@ export default async function main(ctx: NowContext) {
     return link.exitCode;
   } else if (link.status === 'not_linked') {
     output.error(
-      `Your codebase isn’t linked to a project on Vercel. Run ${getCommandName()} to link it.`
+      `Your codebase isn’t linked to a project on Vercel. Run ${getCommandName(
+        'link'
+      )} to begin.`
     );
     return 1;
   } else {

packages/now-cli/src/commands/index.ts

@@ -17,6 +17,7 @@ export default new Map([
   ['help', 'help'],
   ['init', 'init'],
   ['inspect', 'inspect'],
+  ['link', 'link'],
   ['list', 'list'],
   ['ln', 'alias'],
   ['log', 'logs'],

packages/now-cli/src/commands/link/index.ts

@@ -0,0 +1,98 @@
+import chalk from 'chalk';
+import { NowContext } from '../../types';
+import createOutput from '../../util/output';
+import getArgs from '../../util/get-args';
+import getSubcommand from '../../util/get-subcommand';
+import handleError from '../../util/handle-error';
+import logo from '../../util/output/logo';
+import { getPkgName } from '../../util/pkg-name';
+import setupAndLink from '../../util/link/setup-and-link';
+
+const help = () => {
+  console.log(`
+  ${chalk.bold(`${logo} ${getPkgName()} link`)} [options]
+
+  ${chalk.dim('Options:')}
+
+    -h, --help                     Output usage information
+    -A ${chalk.bold.underline('FILE')}, --local-config=${chalk.bold.underline(
+    'FILE'
+  )}   Path to the local ${'`vercel.json`'} file
+    -Q ${chalk.bold.underline('DIR')}, --global-config=${chalk.bold.underline(
+    'DIR'
+  )}    Path to the global ${'`.vercel`'} directory
+    -d, --debug                    Debug mode [off]
+    -t ${chalk.bold.underline('TOKEN')}, --token=${chalk.bold.underline(
+    'TOKEN'
+  )}        Login token
+    --confirm                      Confirm default options and skip questions
+
+  ${chalk.dim('Examples:')}
+
+  ${chalk.gray('–')} Link current directory to a Vercel Project
+
+      ${chalk.cyan(`$ ${getPkgName()} link`)}
+
+  ${chalk.gray(
+    '–'
+  )} Link current directory with default options and skip questions
+
+      ${chalk.cyan(`$ ${getPkgName()} link --confirm`)}
+
+  ${chalk.gray('–')} Link a specific directory to a Vercel Project
+
+      ${chalk.cyan(`$ ${getPkgName()} link /usr/src/project`)}
+`);
+};
+
+const COMMAND_CONFIG = {
+  // No subcommands yet
+};
+
+export default async function main(ctx: NowContext) {
+  let argv;
+
+  try {
+    argv = getArgs(ctx.argv.slice(2), {
+      '--confirm': Boolean,
+    });
+  } catch (error) {
+    handleError(error);
+    return 1;
+  }
+
+  if (argv['--help']) {
+    help();
+    return 2;
+  }
+
+  const debug = argv['--debug'];
+  const output = createOutput({ debug });
+  const { args } = getSubcommand(argv._.slice(1), COMMAND_CONFIG);
+  const path = args[0] || process.cwd();
+  const autoConfirm = argv['--confirm'];
+  const forceDelete = true;
+
+  const link = await setupAndLink(
+    ctx,
+    output,
+    path,
+    forceDelete,
+    autoConfirm,
+    'success',
+    'Set up'
+  );
+
+  if (link.status === 'error') {
+    return link.exitCode;
+  } else if (link.status === 'not_linked') {
+    // User aborted project linking questions
+    return 0;
+  } else if (link.status === 'linked') {
+    // Successfully linked
+    return 0;
+  } else {
+    const err: never = link;
+    throw new Error('Unknown link status: ' + err);
+  }
+}

packages/now-cli/src/types.ts

@@ -83,6 +83,16 @@ export type Domain = {
   };
 };
 
+export type DomainConfig = {
+  configuredBy: null | 'CNAME' | 'A' | 'http';
+  misconfigured: boolean;
+  serviceType: 'zeit.world' | 'external' | 'na';
+  nameservers: string[];
+  cnames: string[] & { traceString?: string };
+  aValues: string[] & { traceString?: string };
+  dnssecEnabled?: boolean;
+};
+
 export type Cert = {
   uid: string;
   autoRenew: boolean;
@@ -217,6 +227,16 @@ export type DNSRecordData =
   | SRVRecordData
   | MXRecordData;
 
+export interface ProjectAliasTarget {
+  createdAt?: number;
+  domain: string;
+  redirect?: string | null;
+  target: 'PRODUCTION' | 'STAGING';
+  configuredBy?: null | 'CNAME' | 'A';
+  configuredChangedAt?: null | number;
+  configuredChangeAttempts?: [number, number];
+}
+
 export interface Secret {
   uid: string;
   name: string;
@@ -258,6 +278,10 @@ export interface Project extends ProjectSettings {
   accountId: string;
   updatedAt: number;
   createdAt: number;
+  alias?: ProjectAliasTarget[];
+  devCommand?: string | null;
+  framework?: string | null;
+  rootDirectory?: string | null;
   latestDeployments?: Partial<Deployment>[];
 }
 
@@ -277,3 +301,8 @@ export interface PaginationOptions {
   count: number;
   next?: number;
 }
+
+export type ProjectLinkResult =
+  | { status: 'linked'; org: Org; project: Project }
+  | { status: 'not_linked'; org: null; project: null }
+  | { status: 'error'; exitCode: number };

packages/now-cli/src/util/dev/server.ts

@@ -1512,9 +1512,9 @@ export default class DevServer {
     const { dest, headers, uri_args } = routeResult;
 
     // Set any headers defined in the matched `route` config
-    Object.entries(headers).forEach(([name, value]) => {
+    for (const [name, value] of Object.entries(headers)) {
       res.setHeader(name, value);
-    });
+    }
 
     if (statusCode) {
       // Set the `statusCode` as read-only so that `http-proxy`
@@ -1537,6 +1537,13 @@ export default class DevServer {
       if (this.devProcessPort) {
         const upstream = `http://localhost:${this.devProcessPort}`;
         debug(`Proxying to frontend dev server: ${upstream}`);
+
+        // Add the Vercel platform proxy request headers
+        const headers = this.getNowProxyHeaders(req, nowRequestId, false);
+        for (const [name, value] of Object.entries(headers)) {
+          req.headers[name] = value;
+        }
+
         this.setResponseHeaders(res, nowRequestId);
         const origUrl = url.parse(req.url || '/', true);
         delete origUrl.search;
@@ -1692,6 +1699,13 @@ export default class DevServer {
       (!foundAsset || (foundAsset && foundAsset.asset.type !== 'Lambda'))
     ) {
       debug('Proxying to frontend dev server');
+
+      // Add the Vercel platform proxy request headers
+      const headers = this.getNowProxyHeaders(req, nowRequestId, false);
+      for (const [name, value] of Object.entries(headers)) {
+        req.headers[name] = value;
+      }
+
       this.setResponseHeaders(res, nowRequestId);
       return proxyPass(
         req,

packages/now-cli/src/util/domains/get-domain-config.ts

@@ -0,0 +1,29 @@
+import chalk from 'chalk';
+import Client from '../client';
+import wait from '../output/wait';
+import { DomainConfig } from '../../types';
+
+export async function getDomainConfig(
+  client: Client,
+  contextName: string,
+  domainName: string
+) {
+  const cancelWait = wait(
+    `Fetching domain config ${domainName} under ${chalk.bold(contextName)}`
+  );
+  try {
+    const config = await client.fetch<DomainConfig>(
+      `/v4/domains/${domainName}/config`
+    );
+
+    return config;
+  } catch (error) {
+    if (error.status < 500) {
+      return error;
+    }
+
+    throw error;
+  } finally {
+    cancelWait();
+  }
+}

packages/now-cli/src/util/domains/get-domain.ts

@@ -0,0 +1,33 @@
+import chalk from 'chalk';
+import Client from '../client';
+import wait from '../output/wait';
+import { Domain } from '../../types';
+
+type Response = {
+  domain: Domain;
+};
+
+export async function getDomain(
+  client: Client,
+  contextName: string,
+  domainName: string
+) {
+  const cancelWait = wait(
+    `Fetching domain ${domainName} under ${chalk.bold(contextName)}`
+  );
+  try {
+    const { domain } = await client.fetch<Response>(
+      `/v4/domains/${domainName}`
+    );
+
+    return domain;
+  } catch (error) {
+    if (error.status < 500) {
+      return error;
+    }
+
+    throw error;
+  } finally {
+    cancelWait();
+  }
+}

packages/now-cli/src/util/domains/is-public-suffix.ts

@@ -0,0 +1,3 @@
+export function isPublicSuffix(domainName: string) {
+  return domainName.endsWith('.vercel.app') || domainName.endsWith('.now.sh');
+}

packages/now-cli/src/util/format-date.ts

@@ -18,3 +18,18 @@ export default function formatDate(dateStrOrNumber?: number | string | null) {
         `[in ${ms(diff)}]`
       )}`;
 }
+
+export function formatDateWithoutTime(
+  dateStrOrNumber?: number | string | null
+) {
+  if (!dateStrOrNumber) {
+    return chalk.gray('-');
+  }
+
+  const date = new Date(dateStrOrNumber);
+  const diff = date.getTime() - Date.now();
+
+  return diff < 0
+    ? `${format(date, 'MMM DD YYYY')} ${chalk.gray(`[${ms(-diff)} ago]`)}`
+    : `${format(date, 'MMM DD YYYY')} ${chalk.gray(`[in ${ms(diff)}]`)}`;
+}

packages/now-cli/src/util/format-table.ts

@@ -20,7 +20,7 @@ import strlen from './strlen';
 export default function formatTable(
   header: string[],
   align: Array<'l' | 'r' | 'c' | '.'>,
-  blocks: { name: string; rows: string[][] }[],
+  blocks: { name?: string; rows: string[][] }[],
   hsep = '    '
 ) {
   const nrCols = header.length;
@@ -50,8 +50,10 @@ export default function formatTable(
         for (let j = 0; j < nrCols; j++) {
           const col = `${row[j]}`;
           const al = align[j] || 'l';
-          const spaces = Math.max(padding[j] * 8 - strlen(col), 0);
-          const pad = ' '.repeat(spaces);
+
+          const repeat = padding[j] > 1 ? padding[j] * 8 - strlen(col) : 0;
+          const pad = repeat > 0 ? ' '.repeat(repeat) : '';
+
           rows[i][j] = al === 'l' ? col + pad : pad + col;
         }
       }

packages/now-cli/src/util/get-team-by-id.ts

@@ -13,6 +13,6 @@ export default async function getTeamById(
     team = await client.fetch<Team>(`/teams/${teamId}`);
     teamCache.set(teamId, team);
   }
-  
+
   return team;
 }

packages/now-cli/src/util/input/edit-project-settings.ts

@@ -4,18 +4,15 @@ import chalk from 'chalk';
 import { Output } from '../output';
 import { Framework } from '@vercel/frameworks';
 import { isSettingValue } from '../is-setting-value';
+import { ProjectSettings } from '../../types';
 
-export interface ProjectSettings {
+export interface PartialProjectSettings {
   buildCommand: string | null;
   outputDirectory: string | null;
   devCommand: string | null;
 }
 
-export interface ProjectSettingsWithFramework extends ProjectSettings {
-  framework: string | null;
-}
-
-const fields: { name: string; value: keyof ProjectSettings }[] = [
+const fields: { name: string; value: keyof PartialProjectSettings }[] = [
   { name: 'Build Command', value: 'buildCommand' },
   { name: 'Output Directory', value: 'outputDirectory' },
   { name: 'Development Command', value: 'devCommand' },
@@ -23,13 +20,15 @@ const fields: { name: string; value: keyof ProjectSettings }[] = [
 
 export default async function editProjectSettings(
   output: Output,
-  projectSettings: ProjectSettings | null,
-  framework: Framework | null
-) {
+  projectSettings: PartialProjectSettings | null,
+  framework: Framework | null,
+  autoConfirm: boolean
+): Promise<ProjectSettings> {
   // create new settings object, missing values will be filled with `null`
-  const settings: Partial<ProjectSettingsWithFramework> = {
-    ...projectSettings,
-  };
+  const settings: ProjectSettings = Object.assign(
+    { framework: null },
+    projectSettings
+  );
 
   for (let field of fields) {
     settings[field.value] =
@@ -64,7 +63,10 @@ export default async function editProjectSettings(
     );
   }
 
-  if (!(await confirm(`Want to override the settings?`, false))) {
+  if (
+    autoConfirm ||
+    !(await confirm(`Want to override the settings?`, false))
+  ) {
     return settings;
   }
 
@@ -75,7 +77,7 @@ export default async function editProjectSettings(
     choices: fields,
   });
 
-  for (let setting of settingFields as (keyof ProjectSettings)[]) {
+  for (let setting of settingFields as (keyof PartialProjectSettings)[]) {
     const field = fields.find(f => f.value === setting);
     const name = `${Date.now()}`;
     const answers = await inquirer.prompt({

packages/now-cli/src/util/input/input-project.ts

@@ -15,10 +15,6 @@ export default async function inputProject(
   detectedProjectName: string,
   autoConfirm: boolean
 ): Promise<Project | string> {
-  if (autoConfirm) {
-    return detectedProjectName;
-  }
-
   const slugifiedName = slugify(detectedProjectName);
 
   // attempt to auto-detect a project to link
@@ -42,6 +38,10 @@ export default async function inputProject(
   } catch (error) {}
   existingProjectSpinner();
 
+  if (autoConfirm) {
+    return detectedProject || detectedProjectName;
+  }
+
   let shouldLinkProject;
 
   if (!detectedProject) {

packages/now-cli/src/util/link/setup-and-link.ts

@@ -0,0 +1,229 @@
+import { join, basename } from 'path';
+import chalk from 'chalk';
+import { remove } from 'fs-extra';
+import { NowContext, ProjectLinkResult } from '../../types';
+import { NowConfig } from '../dev/types';
+import { Output } from '../output';
+import {
+  getLinkedProject,
+  linkFolderToProject,
+  getVercelDirectory,
+} from '../projects/link';
+import createProject from '../projects/create-project';
+import updateProject from '../projects/update-project';
+import Client from '../client';
+import handleError from '../handle-error';
+import confirm from '../input/confirm';
+import toHumanPath from '../humanize-path';
+import { isDirectory } from '../config/global-path';
+import selectOrg from '../input/select-org';
+import inputProject from '../input/input-project';
+import { validateRootDirectory } from '../validate-paths';
+import { inputRootDirectory } from '../input/input-root-directory';
+import editProjectSettings from '../input/edit-project-settings';
+import stamp from '../output/stamp';
+import { EmojiLabel } from '../emoji';
+//@ts-expect-error
+import createDeploy from '../deploy/create-deploy';
+//@ts-expect-error
+import Now from '../index';
+
+export default async function setupAndLink(
+  ctx: NowContext,
+  output: Output,
+  path: string,
+  forceDelete: boolean,
+  autoConfirm: boolean,
+  successEmoji: EmojiLabel,
+  setupMsg: string
+): Promise<ProjectLinkResult> {
+  const {
+    authConfig: { token },
+    config,
+  } = ctx;
+  const { apiUrl } = ctx;
+  const debug = output.isDebugEnabled();
+  const client = new Client({
+    apiUrl,
+    token,
+    currentTeam: config.currentTeam,
+    debug,
+  });
+
+  const isFile = !isDirectory(path);
+  if (isFile) {
+    output.error(`Expected directory but found file: ${path}`);
+    return { status: 'error', exitCode: 1 };
+  }
+  const link = await getLinkedProject(output, client, path);
+  const isTTY = process.stdout.isTTY;
+  const quiet = !isTTY;
+  let rootDirectory: string | null = null;
+  let newProjectName: string;
+  let org;
+
+  if (!forceDelete && link.status === 'linked') {
+    return link;
+  }
+
+  if (forceDelete) {
+    const vercelDir = getVercelDirectory(path);
+    remove(vercelDir);
+  }
+
+  const shouldStartSetup =
+    autoConfirm ||
+    (await confirm(
+      `${setupMsg} ${chalk.cyan(`“${toHumanPath(path)}”`)}?`,
+      true
+    ));
+
+  if (!shouldStartSetup) {
+    output.print(`Aborted. Project not set up.\n`);
+    return { status: 'not_linked', org: null, project: null };
+  }
+
+  try {
+    org = await selectOrg(
+      output,
+      'Which scope should contain your project?',
+      client,
+      config.currentTeam,
+      autoConfirm
+    );
+  } catch (err) {
+    if (err.code === 'NOT_AUTHORIZED' || err.code === 'TEAM_DELETED') {
+      output.prettyError(err);
+      return { status: 'error', exitCode: 1 };
+    }
+
+    throw err;
+  }
+
+  const detectedProjectName = basename(path);
+
+  const projectOrNewProjectName = await inputProject(
+    output,
+    client,
+    org,
+    detectedProjectName,
+    autoConfirm
+  );
+
+  if (typeof projectOrNewProjectName === 'string') {
+    newProjectName = projectOrNewProjectName;
+    rootDirectory = await inputRootDirectory(path, output, autoConfirm);
+  } else {
+    const project = projectOrNewProjectName;
+
+    await linkFolderToProject(
+      output,
+      path,
+      {
+        projectId: project.id,
+        orgId: org.id,
+      },
+      project.name,
+      org.slug,
+      successEmoji
+    );
+    return { status: 'linked', org, project };
+  }
+  const sourcePath = rootDirectory ? join(path, rootDirectory) : path;
+
+  if (
+    rootDirectory &&
+    !(await validateRootDirectory(output, path, sourcePath, ''))
+  ) {
+    return { status: 'error', exitCode: 1 };
+  }
+
+  let localConfig: NowConfig = {};
+  if (ctx.localConfig && !(ctx.localConfig instanceof Error)) {
+    localConfig = ctx.localConfig;
+  }
+  client.currentTeam = org.type === 'team' ? org.id : undefined;
+  const now = new Now({
+    apiUrl,
+    token,
+    debug,
+    currentTeam: client.currentTeam,
+  });
+  let deployment = null;
+
+  try {
+    const createArgs: any = {
+      name: newProjectName,
+      env: {},
+      build: { env: {} },
+      forceNew: undefined,
+      withCache: undefined,
+      quiet,
+      wantsPublic: localConfig.public,
+      isFile,
+      type: null,
+      nowConfig: localConfig,
+      regions: undefined,
+      meta: {},
+      deployStamp: stamp(),
+      target: undefined,
+      skipAutoDetectionConfirmation: false,
+    };
+
+    deployment = await createDeploy(
+      output,
+      now,
+      client.currentTeam || 'current user',
+      [sourcePath],
+      createArgs,
+      org,
+      !isFile,
+      path
+    );
+
+    if (
+      !deployment ||
+      !('code' in deployment) ||
+      deployment.code !== 'missing_project_settings'
+    ) {
+      output.error('Failed to detect project settings. Please try again.');
+      if (output.isDebugEnabled()) {
+        console.log(deployment);
+      }
+      return { status: 'error', exitCode: 1 };
+    }
+
+    const { projectSettings, framework } = deployment;
+
+    if (rootDirectory) {
+      projectSettings.rootDirectory = rootDirectory;
+    }
+
+    const settings = await editProjectSettings(
+      output,
+      projectSettings,
+      framework,
+      autoConfirm
+    );
+    const project = await createProject(client, newProjectName);
+    await updateProject(client, project.id, settings);
+    Object.assign(project, settings);
+
+    await linkFolderToProject(
+      output,
+      path,
+      {
+        projectId: project.id,
+        orgId: org.id,
+      },
+      project.name,
+      org.slug,
+      successEmoji
+    );
+
+    return { status: 'linked', org, project };
+  } catch (err) {
+    handleError(err);
+    return { status: 'error', exitCode: 1 };
+  }
+}

packages/now-cli/src/util/projects/add-domain-to-project.ts

@@ -0,0 +1,46 @@
+import chalk from 'chalk';
+import Client from '../client';
+import wait from '../output/wait';
+import { ProjectAliasTarget } from '../../types';
+
+export async function addDomainToProject(
+  client: Client,
+  projectNameOrId: string,
+  domain: string
+) {
+  const cancelWait = wait(
+    `Adding domain ${domain} to project ${chalk.bold(projectNameOrId)}`
+  );
+  try {
+    const response = await client.fetch<ProjectAliasTarget[]>(
+      `/projects/${encodeURIComponent(projectNameOrId)}/alias`,
+      {
+        method: 'POST',
+        body: JSON.stringify({
+          target: 'PRODUCTION',
+          domain,
+        }),
+      }
+    );
+
+    const aliasTarget: ProjectAliasTarget | undefined = response.find(
+      aliasTarget => aliasTarget.domain === domain
+    );
+
+    if (!aliasTarget) {
+      throw new Error(
+        `Unexpected error when adding the domain "${domain}" to project "${projectNameOrId}".`
+      );
+    }
+
+    return aliasTarget;
+  } catch (err) {
+    if (err.status < 500) {
+      return err;
+    }
+
+    throw err;
+  } finally {
+    cancelWait();
+  }
+}

packages/now-cli/src/util/projects/create-project.ts

@@ -0,0 +1,13 @@
+import Client from '../client';
+import { Project } from '../../types';
+
+export default async function createProject(
+  client: Client,
+  projectName: string
+) {
+  const project = await client.fetch<Project>('/v1/projects', {
+    method: 'POST',
+    body: JSON.stringify({ name: projectName }),
+  });
+  return project;
+}

packages/now-cli/src/util/projects/find-projects-for-domain.ts

@@ -0,0 +1,46 @@
+import chalk from 'chalk';
+import Client from '../client';
+import wait from '../output/wait';
+import { Project } from '../../types';
+import { URLSearchParams } from 'url';
+
+export async function findProjectsForDomain(
+  client: Client,
+  domainName: string
+): Promise<Project[] | Error> {
+  const cancelWait = wait(
+    `Searching project for domain ${chalk.bold(domainName)}`
+  );
+  try {
+    const limit = 50;
+    let result: Project[] = [];
+
+    const query = new URLSearchParams({
+      hasProductionDomains: '1',
+      limit: limit.toString(),
+      domain: domainName,
+    });
+
+    for (let i = 0; i < 1000; i++) {
+      const response = await client.fetch<Project[]>(`/v2/projects/?${query}`);
+      result.push(...response);
+
+      if (response.length !== limit) {
+        break;
+      }
+
+      const [latest] = response.sort((a, b) => b.updatedAt - a.updatedAt);
+      query.append('from', latest.updatedAt.toString());
+    }
+
+    return result;
+  } catch (err) {
+    if (err.status < 500) {
+      return err;
+    }
+
+    throw err;
+  } finally {
+    cancelWait();
+  }
+}

packages/now-cli/src/util/projects/get-projects-with-domains.ts

@@ -0,0 +1,39 @@
+import Client from '../client';
+import wait from '../output/wait';
+import { Project } from '../../types';
+import { URLSearchParams } from 'url';
+
+export async function getProjectsWithDomains(
+  client: Client
+): Promise<Project[] | Error> {
+  const cancelWait = wait(`Fetching projects with domains`);
+  try {
+    const limit = 50;
+    let result: Project[] = [];
+
+    const query = new URLSearchParams({
+      hasProductionDomains: '1',
+      limit: limit.toString(),
+    });
+
+    for (let i = 0; i < 1000; i++) {
+      const response = await client.fetch<Project[]>(`/v2/projects/?${query}`);
+      result.push(...response);
+
+      const [latest] = response.sort((a, b) => b.updatedAt - a.updatedAt);
+      query.append('from', latest.updatedAt.toString());
+
+      if (response.length !== limit) break;
+    }
+
+    return result;
+  } catch (err) {
+    if (err.status < 500) {
+      return err;
+    }
+
+    throw err;
+  } finally {
+    cancelWait();
+  }
+}

packages/now-cli/src/util/projects/link.ts

@@ -8,10 +8,10 @@ import { ProjectNotFound } from '../errors-ts';
 import getUser from '../get-user';
 import getTeamById from '../get-team-by-id';
 import { Output } from '../output';
-import { Project } from '../../types';
+import { Project, ProjectLinkResult } from '../../types';
 import { Org, ProjectLink } from '../../types';
 import chalk from 'chalk';
-import { prependEmoji, emoji } from '../emoji';
+import { prependEmoji, emoji, EmojiLabel } from '../emoji';
 import AJV from 'ajv';
 import { isDirectory } from '../config/global-path';
 import { NowBuildError, getPlatformEnv } from '@vercel/build-utils';
@@ -112,11 +112,7 @@ export async function getLinkedProject(
   output: Output,
   client: Client,
   path?: string
-): Promise<
-  | { status: 'linked'; org: Org; project: Project }
-  | { status: 'not_linked'; org: null; project: null }
-  | { status: 'error'; exitCode: number }
-> {
+): Promise<ProjectLinkResult> {
   const VERCEL_ORG_ID = getPlatformEnv('ORG_ID');
   const VERCEL_PROJECT_ID = getPlatformEnv('PROJECT_ID');
   const shouldUseEnv = Boolean(VERCEL_ORG_ID && VERCEL_PROJECT_ID);
@@ -154,7 +150,7 @@ export async function getLinkedProject(
       spinner();
       throw new NowBuildError({
         message: `Could not retrieve Project Settings. To link your Project, remove the ${outputCode(
-          '.vercel'
+          VERCEL_DIR
         )} directory and deploy again.`,
         code: 'PROJECT_UNAUTHORIZED',
         link: 'https://vercel.link/cannot-load-project-settings',
@@ -196,7 +192,8 @@ export async function linkFolderToProject(
   path: string,
   projectLink: ProjectLink,
   projectName: string,
-  orgSlug: string
+  orgSlug: string,
+  successEmoji: EmojiLabel = 'link'
 ) {
   const VERCEL_ORG_ID = getPlatformEnv('ORG_ID');
   const VERCEL_PROJECT_ID = getPlatformEnv('PROJECT_ID');
@@ -266,7 +263,7 @@ export async function linkFolderToProject(
       )} (created ${VERCEL_DIR}${
         isGitIgnoreUpdated ? ' and added it to .gitignore' : ''
       })`,
-      emoji('link')
+      emoji(successEmoji)
     ) + '\n'
   );
 }

packages/now-cli/src/util/projects/remove-domain-from-project.ts

@@ -0,0 +1,34 @@
+import chalk from 'chalk';
+import Client from '../client';
+import wait from '../output/wait';
+import { ProjectAliasTarget } from '../../types';
+
+export async function removeDomainFromProject(
+  client: Client,
+  projectNameOrId: string,
+  domain: string
+) {
+  const cancelWait = wait(
+    `Removing domain ${domain} from project ${chalk.bold(projectNameOrId)}`
+  );
+  try {
+    const response = await client.fetch<ProjectAliasTarget[]>(
+      `/projects/${encodeURIComponent(
+        projectNameOrId
+      )}/alias?domain=${encodeURIComponent(domain)}`,
+      {
+        method: 'DELETE',
+      }
+    );
+
+    return response;
+  } catch (err) {
+    if (err.status < 500) {
+      return err;
+    }
+
+    throw err;
+  } finally {
+    cancelWait();
+  }
+}

packages/now-cli/src/util/projects/update-project.ts

@@ -0,0 +1,24 @@
+import Client from '../client';
+import { ProjectSettings } from '../../types';
+
+interface ProjectSettingsResponse extends ProjectSettings {
+  id: string;
+  name: string;
+  updatedAt: number;
+  createdAt: number;
+}
+
+export default async function updateProject(
+  client: Client,
+  prjNameOrId: string,
+  settings: ProjectSettings
+) {
+  const res = await client.fetch<ProjectSettingsResponse>(
+    `/v2/projects/${encodeURIComponent(prjNameOrId)}`,
+    {
+      method: 'PATCH',
+      body: JSON.stringify(settings),
+    }
+  );
+  return res;
+}

packages/now-cli/src/util/response-error.ts

@@ -8,7 +8,7 @@ export default async function responseError(
 ) {
   let bodyError;
 
-  if (res.status >= 400 && res.status < 500) {
+  if (!res.ok) {
     let body;
 
     try {

packages/now-cli/test/dev-router.unit.js

@@ -3,7 +3,11 @@ import { devRouter } from '../src/util/dev/router';
 
 test('[dev-router] 301 redirection', async t => {
   const routesConfig = [
-    { src: '/redirect', status: 301, headers: { Location: 'https://vercel.com' } },
+    {
+      src: '/redirect',
+      status: 301,
+      headers: { Location: 'https://vercel.com' },
+    },
   ];
   const result = await devRouter('/redirect', 'GET', routesConfig);
 

packages/now-cli/test/dev/fixtures/go/.gitignore

@@ -0,0 +1 @@
+.vercel

packages/now-cli/test/dev/fixtures/go/api/[segment].go

@@ -0,0 +1,10 @@
+package handler
+
+import (
+	"fmt"
+	"net/http"
+)
+
+func Handler(w http.ResponseWriter, r *http.Request) {
+	fmt.Fprintf(w, "Req Path: %s", r.URL.Path)
+}

packages/now-cli/test/dev/fixtures/go/api/another.go

@@ -0,0 +1,10 @@
+package another
+
+import (
+	"fmt"
+	"net/http"
+)
+
+func Another(w http.ResponseWriter, r *http.Request) {
+	fmt.Fprintf(w, "This is another page")
+}

packages/now-cli/test/dev/fixtures/go/api/index.go

@@ -0,0 +1,10 @@
+package handler
+
+import (
+	"fmt"
+	"net/http"
+)
+
+func Handler(w http.ResponseWriter, r *http.Request) {
+	fmt.Fprintf(w, "This is the index page")
+}

packages/now-cli/test/dev/integration.js

@@ -2,6 +2,7 @@ import ms from 'ms';
 import os from 'os';
 import fs from 'fs-extra';
 import test from 'ava';
+import { isIP } from 'net';
 import { join, resolve, delimiter } from 'path';
 import _execa from 'execa';
 import fetch from 'node-fetch';
@@ -1600,3 +1601,48 @@ test(
     await testPath(200, '/index.css', 'This is index.css');
   })
 );
+
+test(
+  '[vercel dev] Should support `*.go` API serverless functions',
+  testFixtureStdio('go', async testPath => {
+    await testPath(200, `/api`, 'This is the index page');
+    await testPath(200, `/api/index`, 'This is the index page');
+    await testPath(200, `/api/index.go`, 'This is the index page');
+    await testPath(200, `/api/another`, 'This is another page');
+    await testPath(200, '/api/another.go', 'This is another page');
+    await testPath(200, `/api/foo`, 'Req Path: /api/foo');
+    await testPath(200, `/api/bar`, 'Req Path: /api/bar');
+  })
+);
+
+test(
+  '[vercel dev] Should set the `ts-node` "target" to match Node.js version',
+  testFixtureStdio('node-ts-node-target', async testPath => {
+    await testPath(200, `/api/subclass`, '{"ok":true}');
+    await testPath(
+      200,
+      `/api/array`,
+      '{"months":[1,2,3,4,5,6,7,8,9,10,11,12]}'
+    );
+
+    await testPath(200, `/api/dump`, (t, body, res, isDev) => {
+      const { host } = new URL(res.url);
+      const { env, headers } = JSON.parse(body);
+
+      // Test that the API endpoint receives the Vercel proxy request headers
+      t.is(headers['x-forwarded-host'], host);
+      t.is(headers['x-vercel-deployment-url'], host);
+      t.truthy(isIP(headers['x-real-ip']));
+      t.truthy(isIP(headers['x-forwarded-for']));
+      t.truthy(isIP(headers['x-vercel-forwarded-for']));
+
+      // Test that the API endpoint has the Vercel platform env vars defined.
+      t.regex(env.NOW_REGION, /^[a-z]{3}\d$/);
+      if (isDev) {
+        // Only dev is tested because in production these are opt-in.
+        t.is(env.VERCEL_URL, host);
+        t.is(env.VERCEL_REGION, 'dev1');
+      }
+    });
+  })
+);

packages/now-cli/test/fixtures/unit/dev-nodejs/now.json

@@ -1,15 +1,19 @@
 {
-    "version": 2,
-    "name": "nodejs",
-    "builds": [
-        { "src": "*.js", "use": "@now/node" },
-        { "src": "statics/*", "use": "@now/static" }
-    ],
-    "routes": [
-        { "src": "/api/(.*)", "dest": "/api.js?topic=$1" },
-        { "src": "/help.js", "dest": "/index.js" },
-        { "src": "/help", "dest": "/help.js" },
-        { "src": "/proxy_pass", "dest": "https://vercel.com" },
-        { "src": "/redirect", "status": 301, "headers": { "Location": "https://vercel.com" }}
-    ]
+  "version": 2,
+  "name": "nodejs",
+  "builds": [
+    { "src": "*.js", "use": "@now/node" },
+    { "src": "statics/*", "use": "@now/static" }
+  ],
+  "routes": [
+    { "src": "/api/(.*)", "dest": "/api.js?topic=$1" },
+    { "src": "/help.js", "dest": "/index.js" },
+    { "src": "/help", "dest": "/help.js" },
+    { "src": "/proxy_pass", "dest": "https://vercel.com" },
+    {
+      "src": "/redirect",
+      "status": 301,
+      "headers": { "Location": "https://vercel.com" }
+    }
+  ]
 }

packages/now-cli/test/helpers/prepare.js

@@ -50,7 +50,7 @@ const getConfigFile = builds =>
   ]
 }`
     : `{
-  "version": 1
+  "version": 2
 }`;
 
 const getIndexHTMLFile = session => `
@@ -503,6 +503,18 @@ CMD ["node", "index.js"]`,
     'project-link': {
       'package.json': JSON.stringify({}),
     },
+    'project-link-confirm': {
+      'package.json': JSON.stringify({}),
+    },
+    'project-link-dev': {
+      'package.json': JSON.stringify({}),
+    },
+    'dev-proxy-headers-and-env': {
+      'package.json': JSON.stringify({}),
+      'server.js': `require('http').createServer((req, res) => {
+                      res.end(JSON.stringify({ headers: req.headers, env: process.env }));
+                    }).listen(process.env.PORT);`,
+    },
     'project-root-directory': {
       'src/index.html': '<h1>I am a website.</h1>',
       'src/now.json': JSON.stringify({

packages/now-cli/test/integration.js

@@ -29,8 +29,19 @@ function execa(file, args, options) {
   return _execa(file, args, options);
 }
 
+function fixture(name) {
+  const directory = path.join(__dirname, 'fixtures', 'integration', name);
+  const config = path.join(directory, 'project.json');
+
+  // We need to remove it, otherwise we can't re-use fixtures
+  if (fs.existsSync(config)) {
+    fs.unlinkSync(config);
+  }
+
+  return directory;
+}
+
 const binaryPath = path.resolve(__dirname, `../scripts/start.js`);
-const fixture = name => path.join(__dirname, 'fixtures', 'integration', name);
 const example = name =>
   path.join(__dirname, '..', '..', '..', 'examples', name);
 const deployHelpMessage = `${logo} vercel [options] <command | path>`;
@@ -95,7 +106,19 @@ function fetchTokenInformation(token, retries = 3) {
 }
 
 function formatOutput({ stderr, stdout }) {
-  return `Received:\n"${stderr}"\n"${stdout}"`;
+  return `
+-----
+
+Stderr:
+${stderr}
+
+-----
+
+Stdout:
+${stdout}
+
+-----
+  `;
 }
 
 // AVA's `t.context` can only be set before the tests,
@@ -279,10 +302,6 @@ test('login', async t => {
     ...defaultArgs,
   ]);
 
-  console.log(loginOutput.stderr);
-  console.log(loginOutput.stdout);
-  console.log(loginOutput.exitCode);
-
   t.is(loginOutput.exitCode, 0, formatOutput(loginOutput));
   t.regex(
     loginOutput.stdout,
@@ -1026,16 +1045,35 @@ test('list the payment methods', async t => {
 });
 
 test('domains inspect', async t => {
-  const domainName = `inspect-${contextName}.org`;
+  const domainName = `inspect-${contextName}-${Math.random()
+    .toString()
+    .slice(2, 8)}.org`;
 
-  const addRes = await execa(
-    binaryPath,
-    [`domains`, `add`, domainName, ...defaultArgs],
-    { reject: false }
-  );
-  t.is(addRes.exitCode, 0);
+  const directory = fixture('static-multiple-files');
+  const projectName = Math.random().toString().slice(2);
 
-  const { stderr, exitCode } = await execa(
+  const output = await execute([
+    directory,
+    `-V`,
+    `2`,
+    `--name=${projectName}`,
+    '--confirm',
+    '--public',
+  ]);
+  t.is(output.exitCode, 0, formatOutput(output));
+
+  {
+    // Add a domain that can be inspected
+    const result = await execa(
+      binaryPath,
+      [`domains`, `add`, domainName, projectName, ...defaultArgs],
+      { reject: false }
+    );
+
+    t.is(result.exitCode, 0, formatOutput(result));
+  }
+
+  const { stderr, stdout, exitCode } = await execa(
     binaryPath,
     ['domains', 'inspect', domainName, ...defaultArgs],
     {
@@ -1043,18 +1081,30 @@ test('domains inspect', async t => {
     }
   );
 
-  const rmRes = await execa(
-    binaryPath,
-    [`domains`, `rm`, domainName, ...defaultArgs],
-    { reject: false, input: 'y' }
-  );
-  t.is(rmRes.exitCode, 0);
-
-  t.is(exitCode, 0);
   t.true(!stderr.includes(`Renewal Price`));
+  t.is(exitCode, 0, formatOutput({ stdout, stderr }));
+
+  {
+    // Remove the domain again
+    const result = await execa(
+      binaryPath,
+      [`domains`, `rm`, domainName, ...defaultArgs],
+      { reject: false, input: 'y' }
+    );
+
+    t.is(result.exitCode, 0, formatOutput(result));
+  }
 });
 
 test('try to purchase a domain', async t => {
+  if (process.env.VERCEL_TOKEN || process.env.NOW_TOKEN) {
+    console.log(
+      'Skipping test `try to purchase a domain` because a personal VERCEL_TOKEN was provided.'
+    );
+    t.pass();
+    return;
+  }
+
   const { stderr, stdout, exitCode } = await execa(
     binaryPath,
     ['domains', 'buy', `${session}-test.org`, ...defaultArgs],
@@ -2512,11 +2562,10 @@ test('fail to deploy a Lambda with a specific runtime but without a locked versi
   );
 });
 
-test('ensure `github` and `scope` are not sent to the API', async t => {
-  const directory = fixture('github-and-scope-config');
-  const output = await execute([directory, '--confirm']);
-
-  t.is(output.exitCode, 0, formatOutput(output));
+test('fail to add a domain without a project', async t => {
+  const output = await execute(['domains', 'add', 'my-domain.now.sh']);
+  t.is(output.exitCode, 1, formatOutput(output));
+  t.regex(output.stderr, /expects two arguments/gm, formatOutput(output));
 });
 
 test('change user', async t => {
@@ -2546,6 +2595,68 @@ test('change user', async t => {
   t.not(prevUser, nextUser, JSON.stringify({ prevUser, nextUser }));
 });
 
+test('assign a domain to a project', async t => {
+  const domain = `project-domain.${contextName}.now.sh`;
+  const directory = fixture('static-deployment');
+
+  const deploymentOutput = await execute([directory, '--public', '--confirm']);
+  t.is(deploymentOutput.exitCode, 0, formatOutput(deploymentOutput));
+
+  const host = deploymentOutput.stdout.trim().replace('https://', '');
+  const deployment = await apiFetch(
+    `/v10/now/deployments/unknown?url=${host}`
+  ).then(resp => resp.json());
+
+  t.is(typeof deployment.name, 'string', JSON.stringify(deployment, null, 2));
+  const project = deployment.name;
+
+  const output = await execute(['domains', 'add', domain, project, '--force']);
+  t.is(output.exitCode, 0, formatOutput(output));
+
+  const removeResponse = await execute(['rm', project, '-y']);
+  t.is(removeResponse.exitCode, 0, formatOutput(removeResponse));
+});
+
+test('list project domains', async t => {
+  const domain = `project-domain.${contextName}.now.sh`;
+  const directory = fixture('static-deployment');
+
+  const deploymentOutput = await execute([directory, '--public', '--confirm']);
+  t.is(deploymentOutput.exitCode, 0, formatOutput(deploymentOutput));
+
+  const host = deploymentOutput.stdout.trim().replace('https://', '');
+  const deployment = await apiFetch(
+    `/v10/now/deployments/unknown?url=${host}`
+  ).then(resp => resp.json());
+
+  t.is(typeof deployment.name, 'string', JSON.stringify(deployment, null, 2));
+  const project = deployment.name;
+
+  const addOutput = await execute([
+    'domains',
+    'add',
+    domain,
+    project,
+    '--force',
+  ]);
+  t.is(addOutput.exitCode, 0, formatOutput(addOutput));
+
+  const output = await execute(['domains', 'ls']);
+  t.is(output.exitCode, 0, formatOutput(output));
+  t.regex(output.stderr, new RegExp(domain), formatOutput(output));
+  t.regex(output.stderr, new RegExp(project), formatOutput(output));
+
+  const removeResponse = await execute(['rm', project, '-y']);
+  t.is(removeResponse.exitCode, 0, formatOutput(removeResponse));
+});
+
+test('ensure `github` and `scope` are not sent to the API', async t => {
+  const directory = fixture('github-and-scope-config');
+  const output = await execute([directory, '--confirm']);
+
+  t.is(output.exitCode, 0, formatOutput(output));
+});
+
 test('should show prompts to set up project', async t => {
   const directory = fixture('project-link');
   const projectName = `project-link-${
@@ -2595,7 +2706,9 @@ test('should show prompts to set up project', async t => {
   await waitForPrompt(now, chunk =>
     chunk.includes(`What's your Build Command?`)
   );
-  now.stdin.write(`mkdir o && echo '<h1>custom hello</h1>' > o/index.html\n`);
+  now.stdin.write(
+    `mkdir -p o && echo '<h1>custom hello</h1>' > o/index.html\n`
+  );
 
   await waitForPrompt(now, chunk =>
     chunk.includes(`What's your Output Directory?`)
@@ -3169,3 +3282,294 @@ test('reject deploying with wrong team .vercel config', async t => {
     formatOutput({ stderr, stdout })
   );
 });
+
+test('[vc link] should show prompts to set up project', async t => {
+  const dir = fixture('project-link');
+  const projectName = `project-link-${
+    Math.random().toString(36).split('.')[1]
+  }`;
+
+  // remove previously linked project if it exists
+  await remove(path.join(dir, '.vercel'));
+
+  const vc = execa(binaryPath, ['link', ...defaultArgs], { cwd: dir });
+
+  await waitForPrompt(vc, chunk => /Set up [^?]+\?/.test(chunk));
+  vc.stdin.write('yes\n');
+
+  await waitForPrompt(vc, chunk =>
+    chunk.includes('Which scope should contain your project?')
+  );
+  vc.stdin.write('\n');
+
+  await waitForPrompt(vc, chunk => chunk.includes('Link to existing project?'));
+  vc.stdin.write('no\n');
+
+  await waitForPrompt(vc, chunk =>
+    chunk.includes('What’s your project’s name?')
+  );
+  vc.stdin.write(`${projectName}\n`);
+
+  await waitForPrompt(vc, chunk =>
+    chunk.includes('In which directory is your code located?')
+  );
+  vc.stdin.write('\n');
+
+  await waitForPrompt(vc, chunk =>
+    chunk.includes('Want to override the settings?')
+  );
+  vc.stdin.write('yes\n');
+
+  await waitForPrompt(vc, chunk =>
+    chunk.includes(
+      'Which settings would you like to overwrite (select multiple)?'
+    )
+  );
+  vc.stdin.write('a\n'); // 'a' means select all
+
+  await waitForPrompt(vc, chunk =>
+    chunk.includes(`What's your Build Command?`)
+  );
+  vc.stdin.write(`mkdir -p o && echo '<h1>custom hello</h1>' > o/index.html\n`);
+
+  await waitForPrompt(vc, chunk =>
+    chunk.includes(`What's your Output Directory?`)
+  );
+  vc.stdin.write(`o\n`);
+
+  await waitForPrompt(vc, chunk =>
+    chunk.includes(`What's your Development Command?`)
+  );
+  vc.stdin.write(`\n`);
+
+  await waitForPrompt(vc, chunk => chunk.includes('Linked to'));
+
+  const output = await vc;
+
+  // Ensure the exit code is right
+  t.is(output.exitCode, 0, formatOutput(output));
+
+  // Ensure .gitignore is created
+  t.is((await readFile(path.join(dir, '.gitignore'))).toString(), '.vercel');
+
+  // Ensure .vercel/project.json and .vercel/README.txt are created
+  t.is(
+    await exists(path.join(dir, '.vercel', 'project.json')),
+    true,
+    'project.json should be created'
+  );
+  t.is(
+    await exists(path.join(dir, '.vercel', 'README.txt')),
+    true,
+    'README.txt should be created'
+  );
+});
+
+test('[vc link --confirm] should not show prompts and autolink', async t => {
+  const dir = fixture('project-link-confirm');
+
+  // remove previously linked project if it exists
+  await remove(path.join(dir, '.vercel'));
+
+  const { exitCode, stderr, stdout } = await execa(
+    binaryPath,
+    ['link', '--confirm', ...defaultArgs],
+    { cwd: dir, reject: false }
+  );
+
+  // Ensure the exit code is right
+  t.is(exitCode, 0, formatOutput({ stderr, stdout }));
+
+  // Ensure the message is correct pattern
+  t.regex(stderr, /Linked to /m);
+
+  // Ensure .gitignore is created
+  t.is((await readFile(path.join(dir, '.gitignore'))).toString(), '.vercel');
+
+  // Ensure .vercel/project.json and .vercel/README.txt are created
+  t.is(
+    await exists(path.join(dir, '.vercel', 'project.json')),
+    true,
+    'project.json should be created'
+  );
+  t.is(
+    await exists(path.join(dir, '.vercel', 'README.txt')),
+    true,
+    'README.txt should be created'
+  );
+});
+
+test('[vc dev] should show prompts to set up project', async t => {
+  const dir = fixture('project-link-dev');
+  const port = 58352;
+  const projectName = `project-link-dev-${
+    Math.random().toString(36).split('.')[1]
+  }`;
+
+  // remove previously linked project if it exists
+  await remove(path.join(dir, '.vercel'));
+
+  const dev = execa(binaryPath, ['dev', '--listen', port, ...defaultArgs], {
+    cwd: dir,
+  });
+
+  await waitForPrompt(dev, chunk => /Set up and develop [^?]+\?/.test(chunk));
+  dev.stdin.write('yes\n');
+
+  await waitForPrompt(dev, chunk =>
+    chunk.includes('Which scope should contain your project?')
+  );
+  dev.stdin.write('\n');
+
+  await waitForPrompt(dev, chunk =>
+    chunk.includes('Link to existing project?')
+  );
+  dev.stdin.write('no\n');
+
+  await waitForPrompt(dev, chunk =>
+    chunk.includes('What’s your project’s name?')
+  );
+  dev.stdin.write(`${projectName}\n`);
+
+  await waitForPrompt(dev, chunk =>
+    chunk.includes('In which directory is your code located?')
+  );
+  dev.stdin.write('\n');
+
+  await waitForPrompt(dev, chunk =>
+    chunk.includes('Want to override the settings?')
+  );
+  dev.stdin.write('yes\n');
+
+  await waitForPrompt(dev, chunk =>
+    chunk.includes(
+      'Which settings would you like to overwrite (select multiple)?'
+    )
+  );
+  dev.stdin.write('a\n'); // 'a' means select all
+
+  await waitForPrompt(dev, chunk =>
+    chunk.includes(`What's your Build Command?`)
+  );
+  dev.stdin.write(
+    `mkdir -p o && echo '<h1>custom hello</h1>' > o/index.html\n`
+  );
+
+  await waitForPrompt(dev, chunk =>
+    chunk.includes(`What's your Output Directory?`)
+  );
+  dev.stdin.write(`o\n`);
+
+  await waitForPrompt(dev, chunk =>
+    chunk.includes(`What's your Development Command?`)
+  );
+  dev.stdin.write(`\n`);
+
+  await waitForPrompt(dev, chunk => chunk.includes('Linked to'));
+
+  // Ensure .gitignore is created
+  t.is((await readFile(path.join(dir, '.gitignore'))).toString(), '.vercel');
+
+  // Ensure .vercel/project.json and .vercel/README.txt are created
+  t.is(
+    await exists(path.join(dir, '.vercel', 'project.json')),
+    true,
+    'project.json should be created'
+  );
+  t.is(
+    await exists(path.join(dir, '.vercel', 'README.txt')),
+    true,
+    'README.txt should be created'
+  );
+
+  await waitForPrompt(dev, chunk => chunk.includes('Ready! Available at'));
+
+  // Ensure that `vc dev` also works
+  try {
+    const response = await fetch(`http://localhost:${port}/`);
+    const text = await response.text();
+    t.is(text.includes('<h1>custom hello</h1>'), true, text);
+  } finally {
+    process.kill(dev.pid, 'SIGTERM');
+  }
+});
+
+test('[vc dev] should send the platform proxy request headers to frontend dev server ', async t => {
+  const dir = fixture('dev-proxy-headers-and-env');
+  const port = 58353;
+  const projectName = `dev-proxy-headers-and-env-${
+    Math.random().toString(36).split('.')[1]
+  }`;
+
+  // remove previously linked project if it exists
+  await remove(path.join(dir, '.vercel'));
+
+  const dev = execa(binaryPath, ['dev', '--listen', port, ...defaultArgs], {
+    cwd: dir,
+  });
+
+  await waitForPrompt(dev, chunk => /Set up and develop [^?]+\?/.test(chunk));
+  dev.stdin.write('yes\n');
+
+  await waitForPrompt(dev, chunk =>
+    chunk.includes('Which scope should contain your project?')
+  );
+  dev.stdin.write('\n');
+
+  await waitForPrompt(dev, chunk =>
+    chunk.includes('Link to existing project?')
+  );
+  dev.stdin.write('no\n');
+
+  await waitForPrompt(dev, chunk =>
+    chunk.includes('What’s your project’s name?')
+  );
+  dev.stdin.write(`${projectName}\n`);
+
+  await waitForPrompt(dev, chunk =>
+    chunk.includes('In which directory is your code located?')
+  );
+  dev.stdin.write('\n');
+
+  await waitForPrompt(dev, chunk =>
+    chunk.includes('Want to override the settings?')
+  );
+  dev.stdin.write('yes\n');
+
+  await waitForPrompt(dev, chunk =>
+    chunk.includes(
+      'Which settings would you like to overwrite (select multiple)?'
+    )
+  );
+  dev.stdin.write('a\n'); // 'a' means select all
+
+  await waitForPrompt(dev, chunk =>
+    chunk.includes(`What's your Build Command?`)
+  );
+  dev.stdin.write(
+    `mkdir -p o && echo '<h1>custom hello</h1>' > o/index.html\n`
+  );
+
+  await waitForPrompt(dev, chunk =>
+    chunk.includes(`What's your Output Directory?`)
+  );
+  dev.stdin.write(`o\n`);
+
+  await waitForPrompt(dev, chunk =>
+    chunk.includes(`What's your Development Command?`)
+  );
+  dev.stdin.write(`node server.js\n`);
+
+  await waitForPrompt(dev, chunk => chunk.includes('Linked to'));
+  await waitForPrompt(dev, chunk => chunk.includes('Ready! Available at'));
+
+  // Ensure that `vc dev` also works
+  try {
+    const response = await fetch(`http://localhost:${port}/`);
+    const body = await response.json();
+    t.is(body.headers['x-vercel-deployment-url'], `localhost:${port}`);
+    t.is(body.env.NOW_REGION, 'dev1');
+  } finally {
+    process.kill(dev.pid, 'SIGTERM');
+  }
+});

packages/now-client/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@vercel/client",
-  "version": "8.2.1",
+  "version": "8.2.2-canary.0",
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",
   "homepage": "https://vercel.com",

packages/now-client/src/types.ts

@@ -112,6 +112,7 @@ export interface NowConfig extends LegacyNowConfig {
   [fileNameSymbol]?: string;
   name?: string;
   version?: number;
+  public?: boolean;
   env?: Dictionary<string>;
   build?: {
     env?: Dictionary<string>;

packages/now-go/build.sh

@@ -1,4 +1,13 @@
+#!/bin/bash
+set -euo pipefail
+
+# Start fresh
+rm -rf dist
+
+# Build with `ncc`
 ncc build index.ts -e @vercel/build-utils -e @now/build-utils -o dist
 ncc build install.ts -e @vercel/build-utils -e @now/build-utils -o dist/install
+
+# Move `install.js` to dist
 mv dist/install/index.js dist/install.js
 rm -rf dist/install

packages/now-go/go-helpers.ts

@@ -3,14 +3,10 @@ import execa from 'execa';
 import fetch from 'node-fetch';
 import { mkdirp, pathExists } from 'fs-extra';
 import { dirname, join } from 'path';
-import { homedir } from 'os';
 import buildUtils from './build-utils';
 import stringArgv from 'string-argv';
 const { debug } = buildUtils;
-const archMap = new Map([
-  ['x64', 'amd64'],
-  ['x86', '386'],
-]);
+const archMap = new Map([['x64', 'amd64'], ['x86', '386']]);
 const platformMap = new Map([['win32', 'windows']]);
 
 // Location where the `go` binary will be installed after `postinstall`
@@ -130,50 +126,35 @@ export async function downloadGo(
   platform = process.platform,
   arch = process.arch
 ) {
-  // Check default `Go` in user machine
-  const isUserGo = await pathExists(join(homedir(), 'go'));
+  // Check if `go` is already installed in user's `$PATH`
+  const { failed, stdout } = await execa('go', ['version'], { reject: false });
 
-  // If we found GOPATH in ENV, or default `Go` path exists
-  // asssume that user have `Go` installed
-  if (isUserGo || process.env.GOPATH !== undefined) {
-    const { stdout } = await execa('go', ['version']);
-
-    if (parseInt(stdout.split('.')[1]) >= 11) {
-      return createGo(dir, platform, arch);
-    }
-
-    throw new Error(
-      `Your current ${stdout} doesn't support Go Modules. Please update.`
-    );
-  } else {
-    // Check `Go` bin in builder CWD
-    const isGoExist = await pathExists(join(dir, 'bin'));
-    if (!isGoExist) {
-      debug(
-        'Installing `go` v%s to %o for %s %s',
-        version,
-        dir,
-        platform,
-        arch
-      );
-      const url = getGoUrl(version, platform, arch);
-      debug('Downloading `go` URL: %o', url);
-      const res = await fetch(url);
-
-      if (!res.ok) {
-        throw new Error(`Failed to download: ${url} (${res.status})`);
-      }
-
-      // TODO: use a zip extractor when `ext === "zip"`
-      await mkdirp(dir);
-      await new Promise((resolve, reject) => {
-        res.body
-          .on('error', reject)
-          .pipe(tar.extract({ cwd: dir, strip: 1 }))
-          .on('error', reject)
-          .on('finish', resolve);
-      });
-    }
+  if (!failed && parseInt(stdout.split('.')[1]) >= 11) {
+    debug('Using system installed version of `go`: %o', stdout.trim());
     return createGo(dir, platform, arch);
   }
+
+  // Check `go` bin in builder CWD
+  const isGoExist = await pathExists(join(dir, 'bin'));
+  if (!isGoExist) {
+    debug('Installing `go` v%s to %o for %s %s', version, dir, platform, arch);
+    const url = getGoUrl(version, platform, arch);
+    debug('Downloading `go` URL: %o', url);
+    const res = await fetch(url);
+
+    if (!res.ok) {
+      throw new Error(`Failed to download: ${url} (${res.status})`);
+    }
+
+    // TODO: use a zip extractor when `ext === "zip"`
+    await mkdirp(dir);
+    await new Promise((resolve, reject) => {
+      res.body
+        .on('error', reject)
+        .pipe(tar.extract({ cwd: dir, strip: 1 }))
+        .on('error', reject)
+        .on('finish', resolve);
+    });
+  }
+  return createGo(dir, platform, arch);
 }

packages/now-go/index.ts

@@ -1,8 +1,25 @@
-import { join, sep, dirname, basename, normalize } from 'path';
-import { readFile, writeFile, pathExists, move } from 'fs-extra';
-import { homedir } from 'os';
 import execa from 'execa';
-import { BuildOptions, Meta, Files, shouldServe } from '@vercel/build-utils';
+import retry from 'async-retry';
+import { homedir, tmpdir } from 'os';
+import { spawn } from 'child_process';
+import { Readable } from 'stream';
+import once from '@tootallnate/once';
+import { join, dirname, basename, normalize, sep } from 'path';
+import {
+  readFile,
+  writeFile,
+  pathExists,
+  mkdirp,
+  move,
+  remove,
+} from 'fs-extra';
+import {
+  BuildOptions,
+  Meta,
+  Files,
+  StartDevServerOptions,
+  StartDevServerResult,
+} from '@vercel/build-utils';
 import buildUtils from './build-utils';
 
 const {
@@ -10,12 +27,17 @@ const {
   download,
   createLambda,
   getWriteableDirectory,
+  shouldServe,
   debug,
 } = buildUtils;
 
+const TMP = tmpdir();
+
 import { createGo, getAnalyzedEntrypoint, OUT_EXTENSION } from './go-helpers';
 const handlerFileName = `handler${OUT_EXTENSION}`;
 
+export { shouldServe };
+
 interface Analyzed {
   found?: boolean;
   packageName: string;
@@ -23,16 +45,22 @@ interface Analyzed {
   watch: string[];
 }
 
+interface PortInfo {
+  port: number;
+}
+
 // Initialize private git repo for Go Modules
 async function initPrivateGit(credentials: string) {
+  const gitCredentialsPath = join(homedir(), '.git-credentials');
+
   await execa('git', [
     'config',
     '--global',
     'credential.helper',
-    `store --file ${join(homedir(), '.git-credentials')}`,
+    `store --file ${gitCredentialsPath}`,
   ]);
 
-  await writeFile(join(homedir(), '.git-credentials'), credentials);
+  await writeFile(gitCredentialsPath, credentials);
 }
 
 /**
@@ -435,4 +463,160 @@ Learn more: https://vercel.com/docs/runtimes#official-runtimes/go
   };
 }
 
-export { shouldServe };
+function isPortInfo(v: any): v is PortInfo {
+  return v && typeof v.port === 'number';
+}
+
+function isReadable(v: any): v is Readable {
+  return v && v.readable === true;
+}
+
+async function copyEntrypoint(entrypoint: string, dest: string): Promise<void> {
+  const data = await readFile(entrypoint, 'utf8');
+
+  // Modify package to `package main`
+  const patched = data.replace(/\bpackage\W+\S+\b/, 'package main');
+
+  await writeFile(join(dest, 'entrypoint.go'), patched);
+}
+
+async function copyDevServer(
+  functionName: string,
+  dest: string
+): Promise<void> {
+  const data = await readFile(join(__dirname, 'dev-server.go'), 'utf8');
+
+  // Populate the handler function name
+  const patched = data.replace('__HANDLER_FUNC_NAME', functionName);
+
+  await writeFile(join(dest, 'vercel-dev-server-main.go'), patched);
+}
+
+export async function startDevServer(
+  opts: StartDevServerOptions
+): Promise<StartDevServerResult> {
+  const { entrypoint, workPath, meta = {} } = opts;
+  const { devCacheDir = join(workPath, '.vercel', 'cache') } = meta;
+  const entrypointDir = dirname(entrypoint);
+
+  // For some reason, if `entrypoint` is a path segment (filename contains `[]`
+  // brackets) then the `.go` suffix on the entrypoint is missing. Fix that here…
+  let entrypointWithExt = entrypoint;
+  if (!entrypoint.endsWith('.go')) {
+    entrypointWithExt += '.go';
+  }
+
+  const tmp = join(devCacheDir, 'go', Math.random().toString(32).substring(2));
+  const tmpPackage = join(tmp, entrypointDir);
+  await mkdirp(tmpPackage);
+
+  let goModAbsPathDir = '';
+  if (await pathExists(join(workPath, 'go.mod'))) {
+    goModAbsPathDir = workPath;
+  }
+  const analyzedRaw = await getAnalyzedEntrypoint(
+    entrypointWithExt,
+    goModAbsPathDir
+  );
+  if (!analyzedRaw) {
+    throw new Error(
+      `Could not find an exported function in "${entrypointWithExt}"
+Learn more: https://vercel.com/docs/runtimes#official-runtimes/go`
+    );
+  }
+  const analyzed: Analyzed = JSON.parse(analyzedRaw);
+
+  await Promise.all([
+    copyEntrypoint(entrypointWithExt, tmpPackage),
+    copyDevServer(analyzed.functionName, tmpPackage),
+  ]);
+
+  const portFile = join(
+    TMP,
+    `vercel-dev-port-${Math.random().toString(32).substring(2)}`
+  );
+
+  const env: typeof process.env = {
+    ...process.env,
+    ...meta.env,
+    VERCEL_DEV_PORT_FILE: portFile,
+  };
+
+  const tmpRelative = `.${sep}${entrypointDir}`;
+  const child = spawn('go', ['run', tmpRelative], {
+    cwd: tmp,
+    env,
+    stdio: ['ignore', 'inherit', 'inherit', 'pipe'],
+  });
+
+  child.once('exit', () => {
+    retry(() => remove(tmp)).catch((err: Error) => {
+      console.error('Could not delete tmp directory: %j: %s', tmp, err);
+    });
+  });
+
+  const portPipe = child.stdio[3];
+  if (!isReadable(portPipe)) {
+    throw new Error('File descriptor 3 is not readable');
+  }
+
+  // `dev-server.go` writes the ephemeral port number to FD 3 to be consumed here
+  const onPort = new Promise<PortInfo>(resolve => {
+    portPipe.setEncoding('utf8');
+    portPipe.once('data', d => {
+      resolve({ port: Number(d) });
+    });
+  });
+  const onPortFile = waitForPortFile(portFile);
+  const onExit = once.spread<[number, string | null]>(child, 'exit');
+  const result = await Promise.race([onPort, onPortFile, onExit]);
+  onExit.cancel();
+  onPortFile.cancel();
+
+  if (isPortInfo(result)) {
+    return {
+      port: result.port,
+      pid: child.pid,
+    };
+  } else if (Array.isArray(result)) {
+    // Got "exit" event from child process
+    throw new Error(
+      `Failed to start dev server for "${entrypointWithExt}" (code=${result[0]}, signal=${result[1]})`
+    );
+  } else {
+    throw new Error(`Unexpected result type: ${typeof result}`);
+  }
+}
+
+export interface CancelablePromise<T> extends Promise<T> {
+  cancel: () => void;
+}
+
+function waitForPortFile(portFile: string) {
+  const opts = { portFile, canceled: false };
+  const promise = waitForPortFile_(opts) as CancelablePromise<PortInfo | void>;
+  promise.cancel = () => {
+    opts.canceled = true;
+  };
+  return promise;
+}
+
+async function waitForPortFile_(opts: {
+  portFile: string;
+  canceled: boolean;
+}): Promise<PortInfo | void> {
+  while (!opts.canceled) {
+    await new Promise(resolve => setTimeout(resolve, 100));
+    try {
+      const port = Number(await readFile(opts.portFile, 'ascii'));
+      retry(() => remove(opts.portFile)).catch((err: Error) => {
+        console.error('Could not delete port file: %j: %s', opts.portFile, err);
+      });
+      return { port };
+    } catch (err) {
+      if (err.code !== 'ENOENT') {
+        throw err;
+      }
+    }
+  }
+}

packages/now-go/main.go

@@ -1,8 +1,8 @@
 package main
 
 import (
-	"net/http"
 	vc "github.com/vercel/go-bridge/go/bridge"
+	"net/http"
 )
 
 func main() {

packages/now-go/main__mod__.go

@@ -1,12 +1,12 @@
 package main
 
 import (
-  "net/http"
-  "__NOW_HANDLER_PACKAGE_NAME"
+	"__NOW_HANDLER_PACKAGE_NAME"
+	"net/http"
 
-  vc "github.com/vercel/go-bridge/go/bridge"
+	vc "github.com/vercel/go-bridge/go/bridge"
 )
 
 func main() {
-  vc.Start(http.HandlerFunc(__NOW_HANDLER_FUNC_NAME))
+	vc.Start(http.HandlerFunc(__NOW_HANDLER_FUNC_NAME))
 }

packages/now-go/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@vercel/go",
-  "version": "1.1.4",
+  "version": "1.1.5-canary.0",
   "license": "MIT",
   "main": "./dist/index",
   "homepage": "https://vercel.com/docs/runtimes#official-runtimes/go",
@@ -19,6 +19,8 @@
     "dist"
   ],
   "devDependencies": {
+    "@tootallnate/once": "1.1.2",
+    "@types/async-retry": "1.4.2",
     "@types/execa": "^0.9.0",
     "@types/fs-extra": "^5.0.5",
     "@types/node-fetch": "^2.3.0",

packages/now-next/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@vercel/next",
-  "version": "2.6.13",
+  "version": "2.6.14-canary.1",
   "license": "MIT",
   "main": "./dist/index",
   "homepage": "https://vercel.com/docs/runtimes#official-runtimes/next-js",

packages/now-next/src/index.ts

@@ -7,6 +7,7 @@ const {
   getLambdaOptionsFromFunction,
   getNodeVersion,
   getSpawnOptions,
+  getScriptName,
   glob,
   runNpmInstall,
   runPackageJsonScript,
@@ -35,13 +36,7 @@ import {
 import { nodeFileTrace, NodeFileTraceReasons } from '@zeit/node-file-trace';
 import { ChildProcess, fork } from 'child_process';
 import escapeStringRegexp from 'escape-string-regexp';
-import {
-  lstat,
-  pathExists,
-  readFile,
-  unlink as unlinkFile,
-  writeFile,
-} from 'fs-extra';
+import { lstat, pathExists, readFile, remove, writeFile } from 'fs-extra';
 import os from 'os';
 import path from 'path';
 import resolveFrom from 'resolve-from';
@@ -108,13 +103,7 @@ const MAX_AGE_ONE_YEAR = 31536000;
 /**
  * Read package.json from files
  */
-async function readPackageJson(
-  entryPath: string
-): Promise<{
-  scripts?: { [key: string]: string };
-  dependencies?: { [key: string]: string };
-  devDependencies?: { [key: string]: string };
-}> {
+async function readPackageJson(entryPath: string): Promise<PackageJson> {
   const packagePath = path.join(entryPath, 'package.json');
 
   try {
@@ -329,49 +318,38 @@ export const build = async ({
   }
 
   const isLegacy = nextVersionRange && isLegacyNext(nextVersionRange);
-  let shouldRunScript = 'now-build';
-
   debug(`MODE: ${isLegacy ? 'legacy' : 'serverless'}`);
 
   if (isLegacy) {
-    try {
-      await unlinkFile(path.join(entryPath, 'yarn.lock'));
-    } catch (err) {
-      debug('no yarn.lock removed');
-    }
-
-    try {
-      await unlinkFile(path.join(entryPath, 'package-lock.json'));
-    } catch (err) {
-      debug('no package-lock.json removed');
-    }
-
     console.warn(
       "WARNING: your application is being deployed in @vercel/next's legacy mode. http://err.sh/vercel/vercel/now-next-legacy-mode"
     );
 
+    await Promise.all([
+      remove(path.join(entryPath, 'yarn.lock')),
+      remove(path.join(entryPath, 'package-lock.json')),
+    ]);
+
     debug('Normalizing package.json');
     const packageJson = normalizePackageJson(pkg);
     debug('Normalized package.json result: ', packageJson);
     await writePackageJson(entryPath, packageJson);
-  } else if (pkg.scripts && pkg.scripts['now-build']) {
-    debug('Found user `now-build` script');
-    shouldRunScript = 'now-build';
-  } else if (pkg.scripts && pkg.scripts['build']) {
-    debug('Found user `build` script');
-    shouldRunScript = 'build';
-  } else if (!pkg.scripts || !pkg.scripts['now-build']) {
-    debug(
+  }
+
+  const buildScriptName = getScriptName(pkg, [
+    'vercel-build',
+    'now-build',
+    'build',
+  ]);
+  let { buildCommand } = config;
+
+  if (!buildScriptName && !buildCommand) {
+    console.log(
       'Your application is being built using `next build`. ' +
-        'If you need to define a different build step, please create a `now-build` script in your `package.json` ' +
-        '(e.g. `{ "scripts": { "now-build": "npm run prepare && next build" } }`).'
+        'If you need to define a different build step, please create a `vercel-build` script in your `package.json` ' +
+        '(e.g. `{ "scripts": { "vercel-build": "npm run prepare && next build" } }`).'
     );
-    pkg.scripts = {
-      'now-build': 'next build',
-      ...(pkg.scripts || {}),
-    };
-    shouldRunScript = 'now-build';
-    await writePackageJson(entryPath, pkg);
+    buildCommand = 'next build';
   }
 
   if (process.env.NPM_AUTH_TOKEN) {
@@ -398,12 +376,11 @@ export const build = async ({
     await createServerlessConfig(workPath, entryPath, nextVersion);
   }
 
-  debug('Running user script...');
   const memoryToConsume = Math.floor(os.totalmem() / 1024 ** 2) - 128;
   const env: { [key: string]: string | undefined } = { ...spawnOpts.env };
   env.NODE_OPTIONS = `--max_old_space_size=${memoryToConsume}`;
 
-  if (config.buildCommand) {
+  if (buildCommand) {
     // Add `node_modules/.bin` to PATH
     const nodeBinPath = await getNodeBinPath({ cwd: entryPath });
     env.PATH = `${nodeBinPath}${path.delimiter}${env.PATH}`;
@@ -412,14 +389,14 @@ export const build = async ({
       `Added "${nodeBinPath}" to PATH env because a build command was used.`
     );
 
-    console.log(`Running "${config.buildCommand}"`);
-    await execCommand(config.buildCommand, {
+    console.log(`Running "${buildCommand}"`);
+    await execCommand(buildCommand, {
       ...spawnOpts,
       cwd: entryPath,
       env,
     });
-  } else {
-    await runPackageJsonScript(entryPath, shouldRunScript, {
+  } else if (buildScriptName) {
+    await runPackageJsonScript(entryPath, buildScriptName, {
       ...spawnOpts,
       env,
     });
@@ -667,7 +644,7 @@ export const build = async ({
   }
 
   if (process.env.NPM_AUTH_TOKEN) {
-    await unlinkFile(path.join(entryPath, '.npmrc'));
+    await remove(path.join(entryPath, '.npmrc'));
   }
 
   const pageLambdaRoutes: Route[] = [];
@@ -838,7 +815,7 @@ export const build = async ({
 
     // > 1 because _error is a lambda but isn't used if a static 404 is available
     const pageKeys = Object.keys(pages);
-    const hasLambdas = !static404Page || pageKeys.length > 1;
+    let hasLambdas = !static404Page || pageKeys.length > 1;
 
     if (pageKeys.length === 0) {
       const nextConfig = await getNextConfig(workPath, entryPath);
@@ -878,14 +855,38 @@ export const build = async ({
           [filePath: string]: FileFsRef;
         };
 
-    let canUsePreviewMode = false;
+    const isApiPage = (page: string) =>
+      page.replace(/\\/g, '/').match(/serverless\/pages\/api/);
+
+    const canUsePreviewMode = Object.keys(pages).some(page =>
+      isApiPage(pages[page].fsPath)
+    );
+
     let pseudoLayerBytes = 0;
     let apiPseudoLayerBytes = 0;
     const pseudoLayers: PseudoLayer[] = [];
     const apiPseudoLayers: PseudoLayer[] = [];
+    const nonLambdaSsgPages = new Set<string>();
 
-    const isApiPage = (page: string) =>
-      page.replace(/\\/g, '/').match(/serverless\/pages\/api/);
+    const onPrerenderRouteInitial = (routeKey: string) => {
+      // Get the route file as it'd be mounted in the builder output
+      const pr = prerenderManifest.staticRoutes[routeKey];
+      const { initialRevalidate, srcRoute } = pr;
+      const route = srcRoute || routeKey;
+
+      if (
+        initialRevalidate === false &&
+        !canUsePreviewMode &&
+        !prerenderManifest.fallbackRoutes[route] &&
+        !prerenderManifest.legacyBlockingRoutes[route]
+      ) {
+        nonLambdaSsgPages.add(route);
+      }
+    };
+
+    Object.keys(prerenderManifest.staticRoutes).forEach(route =>
+      onPrerenderRouteInitial(route)
+    );
 
     const tracedFiles: {
       [filePath: string]: FileFsRef;
@@ -895,22 +896,31 @@ export const build = async ({
     } = {};
 
     if (requiresTracing) {
-      const tracingLabel =
-        'Traced Next.js serverless functions for external files in';
-      console.time(tracingLabel);
-
       const apiPages: string[] = [];
       const nonApiPages: string[] = [];
-      const allPagePaths = Object.keys(pages).map(page => pages[page].fsPath);
+      const pageKeys = Object.keys(pages);
 
-      for (const page of allPagePaths) {
-        if (isApiPage(page)) {
-          apiPages.push(page);
-          canUsePreviewMode = true;
-        } else {
-          nonApiPages.push(page);
+      for (const page of pageKeys) {
+        const pagePath = pages[page].fsPath;
+        const route = `/${page.replace(/\.js$/, '')}`;
+
+        if (route === '/_error' && static404Page) continue;
+
+        if (isApiPage(pagePath)) {
+          apiPages.push(pagePath);
+        } else if (!nonLambdaSsgPages.has(route)) {
+          nonApiPages.push(pagePath);
         }
       }
+      hasLambdas =
+        !static404Page || apiPages.length > 0 || nonApiPages.length > 0;
+
+      const tracingLabel =
+        'Traced Next.js serverless functions for external files in';
+
+      if (hasLambdas) {
+        console.time(tracingLabel);
+      }
 
       const {
         fileList: apiFileList,
@@ -960,10 +970,16 @@ export const build = async ({
       await Promise.all(
         apiFileList.map(collectTracedFiles(apiReasons, apiTracedFiles))
       );
-      console.timeEnd(tracingLabel);
+
+      if (hasLambdas) {
+        console.timeEnd(tracingLabel);
+      }
 
       const zippingLabel = 'Compressed shared serverless function files';
-      console.time(zippingLabel);
+
+      if (hasLambdas) {
+        console.time(zippingLabel);
+      }
 
       let pseudoLayer;
       let apiPseudoLayer;
@@ -978,7 +994,9 @@ export const build = async ({
       pseudoLayers.push(pseudoLayer);
       apiPseudoLayers.push(apiPseudoLayer);
 
-      console.timeEnd(zippingLabel);
+      if (hasLambdas) {
+        console.timeEnd(zippingLabel);
+      }
     } else {
       // An optional assets folder that is placed alongside every page
       // entrypoint.
@@ -1063,6 +1081,11 @@ export const build = async ({
         if (routeIsDynamic) {
           dynamicPages.push(normalizePage(pathname));
         }
+
+        if (nonLambdaSsgPages.has(`/${pathname}`)) {
+          continue;
+        }
+
         const outputName = path.join('/', entryDirectory, pathname);
 
         const lambdaGroups = routeIsApi ? apiLambdaGroups : pageLambdaGroups;
@@ -1472,13 +1495,6 @@ export const build = async ({
         lambda = lambdas[outputSrcPathPage];
       }
 
-      if (lambda == null) {
-        throw new NowBuildError({
-          code: 'NEXT_MISSING_LAMBDA',
-          message: `Unable to find lambda for route: ${routeFileNoExt}`,
-        });
-      }
-
       if (initialRevalidate === false) {
         if (htmlFsRef == null || jsonFsRef == null) {
           throw new NowBuildError({
@@ -1495,6 +1511,13 @@ export const build = async ({
       }
 
       if (prerenders[outputPathPage] == null) {
+        if (lambda == null) {
+          throw new NowBuildError({
+            code: 'NEXT_MISSING_LAMBDA',
+            message: `Unable to find lambda for route: ${routeFileNoExt}`,
+          });
+        }
+
         prerenders[outputPathPage] = new Prerender({
           expiration: initialRevalidate,
           lambda,

packages/now-next/test/fixtures/10-export-cache-headers/package.json

@@ -1,6 +1,6 @@
 {
   "scripts": {
-    "build": "next build && next export"
+    "now-build": "next build && next export"
   },
   "dependencies": {
     "next": "canary",

packages/now-next/test/fixtures/11-export-clean-urls/package.json

@@ -1,6 +1,6 @@
 {
   "scripts": {
-    "build": "next build && next export"
+    "vercel-build": "next build && next export"
   },
   "dependencies": {
     "next": "canary",

packages/now-next/test/fixtures/29-ssg-all-static/next.config.js

@@ -0,0 +1,5 @@
+module.exports = {
+  generateBuildId() {
+    return 'testing-build-id';
+  },
+};

packages/now-next/test/fixtures/29-ssg-all-static/now.json

@@ -0,0 +1,108 @@
+{
+  "version": 2,
+  "uploadNowJson": true,
+  "builds": [{ "src": "package.json", "use": "@vercel/next" }],
+  "probes": [
+    {
+      "path": "/forever",
+      "status": 200,
+      "mustContain": "hello"
+    },
+    {
+      "path": "/blog/post-1",
+      "status": 200,
+      "mustContain": "post-1"
+    },
+    {
+      "path": "/blog/post-2",
+      "status": 200,
+      "mustContain": "post-2"
+    },
+    {
+      "path": "/_next/data/testing-build-id/blog/post-1.json",
+      "status": 200,
+      "mustContain": "post-1"
+    },
+    {
+      "path": "/_next/data/testing-build-id/blog/post-2.json",
+      "status": 200,
+      "mustContain": "post-2"
+    },
+
+    {
+      "path": "/blog/post-1/comment-1",
+      "status": 200,
+      "mustContain": "comment-1"
+    },
+    {
+      "path": "/blog/post-2/comment-2",
+      "status": 200,
+      "mustContain": "comment-2"
+    },
+    {
+      "path": "/_next/data/testing-build-id/blog/post-1/comment-1.json",
+      "status": 200,
+      "mustContain": "comment-1"
+    },
+    {
+      "path": "/_next/data/testing-build-id/blog/post-2/comment-2.json",
+      "status": 200,
+      "mustContain": "comment-2"
+    },
+
+    {
+      "path": "/_next/data/testing-build-id/forever.json",
+      "status": 200,
+      "mustContain": "world"
+    },
+    {
+      "path": "/_next/data/testing-build-id/another2.json",
+      "status": 200,
+      "mustContain": "world"
+    },
+    {
+      "path": "/nofallback/one",
+      "status": 200,
+      "mustContain": "one"
+    },
+    {
+      "path": "/nofallback/two",
+      "status": 200,
+      "mustContain": "two"
+    },
+    {
+      "path": "/nofallback/nope",
+      "status": 404,
+      "mustContain": "This page could not be found"
+    },
+    {
+      "path": "/_next/data/testing-build-id/nofallback/one.json",
+      "status": 200,
+      "mustContain": "one"
+    },
+    {
+      "path": "/_next/data/testing-build-id/nofallback/two.json",
+      "status": 200,
+      "mustContain": "two"
+    },
+    {
+      "path": "/_next/data/testing-build-id/nofallback/nope.json",
+      "status": 404
+    },
+    {
+      "logMustNotContain": "WARNING: your application is being opted out of @vercel/next's optimized lambdas mode due to legacy routes"
+    },
+    {
+      "logMustNotContain": "WARNING: Your application is being opted out of \"@vercel/next\" optimized lambdas mode due to `functions` config"
+    },
+    {
+      "logMustNotContain": "Traced Next.js serverless functions for external files in"
+    },
+    {
+      "logMustNotContain": "All serverless functions created in"
+    },
+    {
+      "logMustNotContain": "Compressed shared serverless function files"
+    }
+  ]
+}

packages/now-next/test/fixtures/29-ssg-all-static/package.json

@@ -0,0 +1,7 @@
+{
+  "dependencies": {
+    "next": "canary",
+    "react": "^16.8.6",
+    "react-dom": "^16.8.6"
+  }
+}

packages/now-next/test/fixtures/29-ssg-all-static/pages/another.js

@@ -0,0 +1,22 @@
+import React from 'react';
+
+// eslint-disable-next-line camelcase
+export async function getStaticProps() {
+  return {
+    props: {
+      world: 'world',
+      random: Math.random(),
+      time: new Date().getTime(),
+    },
+  };
+}
+
+export default ({ world, time, random }) => {
+  return (
+    <>
+      <p id="hello">hello: {world}</p>
+      <span id="time">time: {time}</span>
+      <span id="random">random: {random}</span>
+    </>
+  );
+};

packages/now-next/test/fixtures/29-ssg-all-static/pages/another2.js

@@ -0,0 +1,20 @@
+import React from 'react';
+
+// eslint-disable-next-line camelcase
+export async function getStaticProps() {
+  return {
+    props: {
+      world: 'world',
+      time: new Date().getTime(),
+    },
+  };
+}
+
+export default ({ world, time }) => {
+  return (
+    <>
+      <p>hello: {world}</p>
+      <span>time: {time}</span>
+    </>
+  );
+};

packages/now-next/test/fixtures/29-ssg-all-static/pages/blog/[post]/[comment].js

@@ -0,0 +1,39 @@
+import React from 'react';
+
+// eslint-disable-next-line camelcase
+export async function getStaticPaths() {
+  return {
+    paths: [
+      '/blog/post-1/comment-1',
+      { params: { post: 'post-2', comment: 'comment-2' } },
+      '/blog/post-1337/comment-1337',
+      '/blog/post-123/comment-321',
+    ],
+    fallback: false,
+  };
+}
+
+// eslint-disable-next-line camelcase
+export async function getStaticProps({ params }) {
+  return {
+    props: {
+      post: params.post,
+      random: Math.random(),
+      comment: params.comment,
+      time: new Date().getTime(),
+    },
+  };
+}
+
+export default ({ post, comment, time, random }) => {
+  if (!post) return <p>loading...</p>;
+
+  return (
+    <>
+      <p id="post">Post: {post}</p>
+      <p id="comment">Comment: {comment}</p>
+      <span id="time">time: {time}</span>
+      <span id="random">random: {random}</span>
+    </>
+  );
+};

packages/now-next/test/fixtures/29-ssg-all-static/pages/blog/[post]/index.js

@@ -0,0 +1,38 @@
+import React from 'react';
+
+// eslint-disable-next-line camelcase
+export async function getStaticPaths() {
+  return {
+    paths: ['/blog/post-1', { params: { post: 'post-2' } }, '/blog/post-123'],
+    fallback: false,
+  };
+}
+
+// eslint-disable-next-line camelcase
+export async function getStaticProps({ params }) {
+  if (params.post === 'post-10') {
+    await new Promise(resolve => {
+      setTimeout(() => resolve(), 1000);
+    });
+  }
+
+  return {
+    props: {
+      post: params.post,
+      random: Math.random(),
+      time: (await import('perf_hooks')).performance.now(),
+    },
+  };
+}
+
+export default ({ post, time, random }) => {
+  if (!post) return <p>loading...</p>;
+
+  return (
+    <>
+      <p id="post">Post: {post}</p>
+      <span id="time">time: {time}</span>
+      <span id="random">random: {random}</span>
+    </>
+  );
+};

packages/now-next/test/fixtures/29-ssg-all-static/pages/forever.js

@@ -0,0 +1,21 @@
+import React from 'react';
+
+// eslint-disable-next-line camelcase
+export async function getStaticProps() {
+  return {
+    props: {
+      world: 'world',
+      time: new Date().getTime(),
+    },
+    revalidate: false,
+  };
+}
+
+export default ({ world, time }) => {
+  return (
+    <>
+      <p>hello: {world}</p>
+      <span>time: {time}</span>
+    </>
+  );
+};

packages/now-next/test/fixtures/29-ssg-all-static/pages/index.js

@@ -0,0 +1 @@
+export default () => 'Hi';

packages/now-next/test/fixtures/29-ssg-all-static/pages/nofallback/[slug].js

@@ -0,0 +1,30 @@
+import React from 'react';
+
+// eslint-disable-next-line camelcase
+export async function getStaticPaths() {
+  return {
+    paths: ['/nofallback/one', { params: { slug: 'two' } }],
+    fallback: false,
+  };
+}
+
+// eslint-disable-next-line camelcase
+export async function getStaticProps({ params }) {
+  return {
+    props: {
+      slug: params.slug,
+      time: (await import('perf_hooks')).performance.now(),
+    },
+  };
+}
+
+export default ({ slug, time }) => {
+  return (
+    <>
+      <p>
+        Slug ({slug.length}): {slug}
+      </p>
+      <span>time: {time}</span>
+    </>
+  );
+};

packages/now-node/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@vercel/node",
-  "version": "1.7.3",
+  "version": "1.7.4-canary.0",
   "license": "MIT",
   "main": "./dist/index",
   "homepage": "https://vercel.com/docs/runtimes#official-runtimes/node-js",

packages/now-node/src/index.ts

@@ -361,10 +361,12 @@ export async function build({
     meta,
   });
 
-  debug('Running user script...');
-  const runScriptTime = Date.now();
-  await runPackageJsonScript(entrypointFsDirname, 'now-build', spawnOpts);
-  debug(`Script complete [${Date.now() - runScriptTime}ms]`);
+  await runPackageJsonScript(
+    entrypointFsDirname,
+    // Don't consider "build" script since its intended for frontend code
+    ['vercel-build', 'now-build'],
+    spawnOpts
+  );
 
   debug('Tracing input files...');
   const traceTime = Date.now();

packages/now-static-build/build.sh

@@ -1,4 +1,8 @@
 #!/bin/bash
 set -euo pipefail
 
+# Start fresh
+rm -rf dist
+
+# Build with `ncc`
 ncc build src/index.ts -e @vercel/build-utils -e @now/build-utils -o dist

packages/now-static-build/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@vercel/static-build",
-  "version": "0.17.6",
+  "version": "0.17.7-canary.0",
   "license": "MIT",
   "main": "./dist/index",
   "homepage": "https://vercel.com/docs/runtimes#official-runtimes/static-builds",

packages/now-static-build/src/index.ts

@@ -264,7 +264,6 @@ export async function build({
   const pkg = getPkg(entrypoint, workPath);
 
   const devScript = pkg ? getScriptName(pkg, 'dev', config) : null;
-  const buildScript = pkg ? getScriptName(pkg, 'build', config) : null;
 
   const framework = getFramework(config, pkg);
 
@@ -431,8 +430,6 @@ export async function build({
 
       if (buildCommand) {
         debug(`Executing "${buildCommand}"`);
-      } else {
-        debug(`Running "${buildScript}" in "${entrypoint}"`);
       }
 
       const found =
@@ -441,12 +438,16 @@ export async function build({
               ...spawnOpts,
               cwd: entrypointDir,
             })
-          : await runPackageJsonScript(entrypointDir, buildScript!, spawnOpts);
+          : await runPackageJsonScript(
+              entrypointDir,
+              ['vercel-build', 'now-build', 'build'],
+              spawnOpts
+            );
 
       if (!found) {
         throw new Error(
           `Missing required "${
-            buildCommand || buildScript
+            buildCommand || 'vercel-build'
           }" script in "${entrypoint}"`
         );
       }

packages/now-static-build/test/fixtures/08-hundreds/package.json

@@ -1,5 +1,5 @@
 {
   "scripts": {
-    "now-build": "mkdir dist && node build.js"
+    "vercel-build": "mkdir dist && node build.js"
   }
 }

packages/now-static-build/test/integration.test.js

@@ -35,7 +35,7 @@ const testsThatFailToBuild = new Map([
   ['05-empty-dist-dir', 'The Output Directory "dist" is empty.'],
   [
     '06-missing-script',
-    'Missing required "now-build" script in "package.json"',
+    'Missing required "vercel-build" script in "package.json"',
   ],
   ['07-nonzero-sh', 'Command "./build.sh" exited with 1'],
   [

yarn.lock

@@ -1569,7 +1569,7 @@
   dependencies:
     "@types/retry" "*"
 
-"@types/async-retry@1.4.2", "@types/async-retry@^1.2.1":
+"@types/async-retry@^1.2.1":
   version "1.4.2"
   resolved "https://registry.yarnpkg.com/@types/async-retry/-/async-retry-1.4.2.tgz#7f910188cd3893b51e32df51765ee8d5646053e3"
   integrity sha512-GUDuJURF0YiJZ+CBjNQA0+vbP/VHlJbB0sFqkzsV7EcOPRfurVonXpXKAt3w8qIjM1TEzpz6hc6POocPvHOS3w==
@@ -3596,10 +3596,10 @@ code-point-at@^1.0.0:
   resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
   integrity sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c=
 
-codecov@3.6.5:
-  version "3.6.5"
-  resolved "https://registry.yarnpkg.com/codecov/-/codecov-3.6.5.tgz#d73ce62e8a021f5249f54b073e6f2d6a513f172a"
-  integrity sha512-v48WuDMUug6JXwmmfsMzhCHRnhUf8O3duqXvltaYJKrO1OekZWpB/eH6iIoaxMl8Qli0+u3OxptdsBOYiD7VAQ==
+codecov@3.7.1:
+  version "3.7.1"
+  resolved "https://registry.yarnpkg.com/codecov/-/codecov-3.7.1.tgz#434cb8d55f18ef01672e5739d3d266696bebc202"
+  integrity sha512-JHWxyPTkMLLJn9SmKJnwAnvY09kg2Os2+Ux+GG7LwZ9g8gzDDISpIN5wAsH1UBaafA/yGcd3KofMaorE8qd6Lw==
   dependencies:
     argv "0.0.2"
     ignore-walk "3.0.3"