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Merge pull request #28 from netlify/addOpenBrowser
add openBrowser after netlify dev completes
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| // from https://github.com/facebook/create-react-app/blob/7864ba3ce70892ebe43d56487b45d3267890df14/packages/react-dev-utils/openBrowser.js | ||
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| 'use strict' | ||
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| var chalk = require('chalk') | ||
| var execSync = require('child_process').execSync | ||
| var spawn = require('cross-spawn') | ||
| var opn = require('opn') | ||
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| // https://github.com/sindresorhus/opn#app | ||
| var OSX_CHROME = 'google chrome' | ||
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| const Actions = Object.freeze({ | ||
| NONE: 0, | ||
| BROWSER: 1, | ||
| SCRIPT: 2 | ||
| }) | ||
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| function getBrowserEnv() { | ||
| // Attempt to honor this environment variable. | ||
| // It is specific to the operating system. | ||
| // See https://github.com/sindresorhus/opn#app for documentation. | ||
| const value = process.env.BROWSER | ||
| let action | ||
| if (!value) { | ||
| // Default. | ||
| action = Actions.BROWSER | ||
| } else if (value.toLowerCase().endsWith('.js')) { | ||
| action = Actions.SCRIPT | ||
| } else if (value.toLowerCase() === 'none') { | ||
| action = Actions.NONE | ||
| } else { | ||
| action = Actions.BROWSER | ||
| } | ||
| return { action, value } | ||
| } | ||
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| function executeNodeScript(scriptPath, url) { | ||
| const extraArgs = process.argv.slice(2) | ||
| const child = spawn('node', [scriptPath, ...extraArgs, url], { | ||
| stdio: 'inherit' | ||
| }) | ||
| child.on('close', code => { | ||
| if (code !== 0) { | ||
| console.log() | ||
| console.log(chalk.red('The script specified as BROWSER environment variable failed.')) | ||
| console.log(chalk.cyan(scriptPath) + ' exited with code ' + code + '.') | ||
| console.log() | ||
| return | ||
| } | ||
| }) | ||
| return true | ||
| } | ||
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| function startBrowserProcess(browser, url) { | ||
| // If we're on OS X, the user hasn't specifically | ||
| // requested a different browser, we can try opening | ||
| // Chrome with AppleScript. This lets us reuse an | ||
| // existing tab when possible instead of creating a new one. | ||
| const shouldTryOpenChromeWithAppleScript = | ||
| process.platform === 'darwin' && (typeof browser !== 'string' || browser === OSX_CHROME) | ||
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| if (shouldTryOpenChromeWithAppleScript) { | ||
| try { | ||
| // Try our best to reuse existing tab | ||
| // on OS X Google Chrome with AppleScript | ||
| execSync('ps cax | grep "Google Chrome"') | ||
| execSync('osascript openChrome.applescript "' + encodeURI(url) + '"', { | ||
| cwd: __dirname, | ||
| stdio: 'ignore' | ||
| }) | ||
| return true | ||
| } catch (err) { | ||
| // Ignore errors. | ||
| } | ||
| } | ||
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| // Another special case: on OS X, check if BROWSER has been set to "open". | ||
| // In this case, instead of passing `open` to `opn` (which won't work), | ||
| // just ignore it (thus ensuring the intended behavior, i.e. opening the system browser): | ||
| // https://github.com/facebook/create-react-app/pull/1690#issuecomment-283518768 | ||
| if (process.platform === 'darwin' && browser === 'open') { | ||
| browser = undefined | ||
| } | ||
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| // Fallback to opn | ||
| // (It will always open new tab) | ||
| try { | ||
| var options = { app: browser, wait: false } | ||
| opn(url, options).catch(() => {}) // Prevent `unhandledRejection` error. | ||
| return true | ||
| } catch (err) { | ||
| return false | ||
| } | ||
| } | ||
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| /** | ||
| * Reads the BROWSER environment variable and decides what to do with it. Returns | ||
| * true if it opened a browser or ran a node.js script, otherwise false. | ||
| */ | ||
| function openBrowser(url) { | ||
| const { action, value } = getBrowserEnv() | ||
| switch (action) { | ||
| case Actions.NONE: | ||
| // Special case: BROWSER="none" will prevent opening completely. | ||
| return false | ||
| case Actions.SCRIPT: | ||
| return executeNodeScript(value, url) | ||
| case Actions.BROWSER: | ||
| return startBrowserProcess(value, url) | ||
| default: | ||
| throw new Error('Not implemented.') | ||
| } | ||
| } | ||
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| module.exports = openBrowser |