Revert "consolidate CLI logic and depend on it in gatsby (#1880)"

This reverts commit 2a6d803.

packages/gatsby-cli/.gitignore

@@ -1,2 +1,2 @@
-/lib
+/*.js
 yarn.lock

packages/gatsby-cli/package.json

@@ -4,22 +4,17 @@
   "version": "1.1.2",
   "author": "Kyle Mathews <mathews.kyle@gmail.com>",
   "bin": {
-    "gatsby": "lib/index.js"
+    "gatsby": "./index.js"
   },
   "dependencies": {
     "babel-runtime": "^6.25.0",
-    "bluebird": "^3.5.0",
-    "common-tags": "^1.4.0",
-    "convert-hrtime": "^2.0.0",
+    "commander": "^2.11.0",
     "core-js": "^2.5.0",
-    "execa": "^0.8.0",
     "fs-extra": "^4.0.1",
     "hosted-git-info": "^2.5.0",
     "lodash": "^4.17.4",
-    "pretty-error": "^2.1.1",
     "resolve-cwd": "^2.0.0",
-    "yargs": "^8.0.2",
-    "yurnalist": "^0.2.1"
+    "tracer": "^0.8.9"
   },
   "devDependencies": {
     "babel-cli": "^6.24.1"
@@ -28,9 +23,9 @@
     "gatsby"
   ],
   "license": "MIT",
-  "main": "lib/index.js",
+  "main": "index.js",
   "scripts": {
-    "build": "babel src --out-dir lib --ignore __tests__",
-    "watch": "babel -w src --out-dir lib --ignore __tests__"
+    "build": "babel src --out-dir . --ignore __tests__",
+    "watch": "babel -w src --out-dir . --ignore __tests__"
   }
 }

packages/gatsby-cli/src/index.js

@@ -4,39 +4,150 @@
 // use require() with backtick strings so use the es6 syntax
 import "babel-polyfill"
 
+const program = require(`commander`)
+const packageJson = require(`./package.json`)
+const path = require(`path`)
+const _ = require(`lodash`)
 const resolveCwd = require(`resolve-cwd`)
-const createCli = require(`./create-cli`)
-const report = require(`./reporter`)
 
-global.Promise = require(`bluebird`)
+program.version(packageJson.version).usage(`[command] [options]`)
 
-const version = process.version
-const verDigit = Number(version.match(/\d+/)[0])
+let inGatsbySite = false
+let localPackageJSON
+try {
+  localPackageJSON = require(path.resolve(`./package.json`))
+  if (
+    (localPackageJSON.dependencies && localPackageJSON.dependencies.gatsby) ||
+    (localPackageJSON.devDependencies &&
+      localPackageJSON.devDependencies.gatsby)
+  ) {
+    inGatsbySite = true
+  } else if (
+    localPackageJSON.devDependencies &&
+    localPackageJSON.devDependencies.gatsby
+  ) {
+    inGatsbySite = true
+  }
+} catch (err) {
+  // ignore
+}
 
-if (verDigit < 4) {
-  report.panic(
-    `Gatsby 1.0+ requires node.js v4 or higher (you have ${version}). \n` +
-      `Upgrade node to the latest stable release.`
-  )
+const defaultHost = `localhost`
+
+const directory = path.resolve(`.`)
+const getSiteInfo = () => {
+  const sitePackageJson = require(path.join(directory, `package.json`))
+  const browserslist = sitePackageJson.browserslist || [
+    `> 1%`,
+    `last 2 versions`,
+    `IE >= 9`,
+  ]
+  return { sitePackageJson, browserslist }
 }
 
-Promise.onPossiblyUnhandledRejection(error => {
-  report.error(error)
-  throw error
-})
+// If there's a package.json in the current directory w/ a gatsby dependency
+// include the develop/build/serve commands. Otherwise, just the new.
+if (inGatsbySite) {
+  program
+    .command(`develop`)
+    .description(
+      `Start development server. Watches files and rebuilds and hot reloads ` +
+        `if something changes`
+    ) // eslint-disable-line max-len
+    .option(
+      `-H, --host <url>`,
+      `Set host. Defaults to ${defaultHost}`,
+      defaultHost
+    )
+    .option(`-p, --port <port>`, `Set port. Defaults to 8000`, `8000`)
+    .option(`-o, --open`, `Open the site in your browser for you.`)
+    .action(command => {
+      const developPath = resolveCwd(`gatsby/dist/utils/develop`)
+      const develop = require(developPath)
+      const { sitePackageJson, browserslist } = getSiteInfo()
+      const p = {
+        ...command,
+        directory,
+        sitePackageJson,
+        browserslist,
+      }
+      develop(p)
+    })
 
-process.on(`unhandledRejection`, error => {
-  // This will exit the process in newer Node anyway so lets be consistent
-  // across versions and crash
-  report.panic(`UNHANDLED REJECTION`, error)
-})
+  program
+    .command(`build`)
+    .description(`Build a Gatsby project.`)
+    .option(
+      `--prefix-paths`,
+      `Build site with link paths prefixed (set prefix in your config).`
+    )
+    .action(command => {
+      // Set NODE_ENV to 'production'
+      process.env.NODE_ENV = `production`
 
-process.on(`uncaughtException`, error => {
-  report.panic(`UNHANDLED EXCEPTION`, error)
-})
+      const buildPath = resolveCwd(`gatsby/dist/utils/build`)
+      const build = require(buildPath)
+      const { sitePackageJson, browserslist } = getSiteInfo()
+      const p = {
+        ...command,
+        directory,
+        sitePackageJson,
+        browserslist,
+      }
+      build(p).then(() => {
+        console.log(`Done building in`, process.uptime(), `seconds`)
+        process.exit()
+      })
+    })
+
+  program
+    .command(`serve`)
+    .description(`Serve built site.`)
+    .option(
+      `-H, --host <url>`,
+      `Set host. Defaults to ${defaultHost}`,
+      defaultHost
+    )
+    .option(`-p, --port <port>`, `Set port. Defaults to 9000`, `9000`)
+    .option(`-o, --open`, `Open the site in your browser for you.`)
+    .action(command => {
+      const servePath = resolveCwd(`gatsby/dist/utils/serve`)
+      const serve = require(servePath)
+      const { sitePackageJson, browserslist } = getSiteInfo()
+      const p = {
+        ...command,
+        directory,
+        sitePackageJson,
+        browserslist,
+      }
+      serve(p)
+    })
+}
+
+program
+  .command(`new [rootPath] [starter]`)
+  .description(`Create new Gatsby project.`)
+  .action((rootPath, starter) => {
+    const newCommand = require(`./new`)
+    newCommand(rootPath, starter)
+  })
 
-createCli(process.argv, {
-  develop: () => require(resolveCwd(`gatsby/dist/commands/develop`)),
-  build: () => require(resolveCwd(`gatsby/dist/commands/build`)),
-  serve: () => require(resolveCwd(`gatsby/dist/commands/serve`)),
+program.on(`--help`, () => {
+  console.log(
+    `To show subcommand help:
+
+    gatsby [command] -h
+`
+  )
 })
+
+// If the user types an unknown sub-command, just display the help.
+const subCmd = process.argv.slice(2, 3)[0]
+let cmds = _.map(program.commands, `_name`)
+cmds = cmds.concat([`--version`, `-V`])
+
+if (!_.includes(cmds, subCmd)) {
+  program.help()
+} else {
+  program.parse(process.argv)
+}