whoami7 - Manager
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opt
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alt
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alt-nodejs16
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root
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usr
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lib
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node_modules
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npm
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lib
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commands
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files >> //opt/alt/alt-nodejs16/root/usr/lib/node_modules/npm/lib/commands/help.js
const { spawn } = require('child_process') const path = require('path') const openUrl = require('../utils/open-url.js') const { promisify } = require('util') const glob = promisify(require('glob')) const localeCompare = require('@isaacs/string-locale-compare')('en') const globify = pattern => pattern.split('\\').join('/') const BaseCommand = require('../base-command.js') // Strips out the number from foo.7 or foo.7. or foo.7.tgz // We don't currently compress our man pages but if we ever did this would // seemlessly continue supporting it const manNumberRegex = /\.(\d+)(\.[^/\\]*)?$/ // Searches for the "npm-" prefix in page names, to prefer those. const manNpmPrefixRegex = /\/npm-/ class Help extends BaseCommand { static description = 'Get help on npm' static name = 'help' static usage = ['<term> [<terms..>]'] static params = ['viewer'] static ignoreImplicitWorkspace = true async completion (opts) { if (opts.conf.argv.remain.length > 2) { return [] } const g = path.resolve(__dirname, '../../man/man[0-9]/*.[0-9]') const files = await glob(globify(g)) return Object.keys(files.reduce(function (acc, file) { file = path.basename(file).replace(/\.[0-9]+$/, '') file = file.replace(/^npm-/, '') acc[file] = true return acc }, { help: true })) } async exec (args) { // By default we search all of our man subdirectories, but if the user has // asked for a specific one we limit the search to just there let manSearch = 'man*' if (/^\d+$/.test(args[0])) { manSearch = `man${args.shift()}` } if (!args.length) { return this.npm.output(await this.npm.usage) } // npm help foo bar baz: search topics if (args.length > 1) { return this.helpSearch(args) } let section = this.npm.deref(args[0]) || args[0] // support `npm help package.json` section = section.replace('.json', '-json') const manroot = path.resolve(__dirname, '..', '..', 'man') // find either section.n or npm-section.n const f = `${manroot}/${manSearch}/?(npm-)${section}.[0-9]*` let mans = await glob(globify(f)) mans = mans.sort((a, b) => { // Prefer the page with an npm prefix, if there's only one. const aHasPrefix = manNpmPrefixRegex.test(a) const bHasPrefix = manNpmPrefixRegex.test(b) if (aHasPrefix !== bHasPrefix) { return aHasPrefix ? -1 : 1 } // Because the glob is (subtly) different from manNumberRegex, // we can't rely on it passing. const aManNumberMatch = a.match(manNumberRegex) const bManNumberMatch = b.match(manNumberRegex) if (aManNumberMatch) { if (!bManNumberMatch) { return -1 } // man number sort first so that 1 aka commands are preferred if (aManNumberMatch[1] !== bManNumberMatch[1]) { return aManNumberMatch[1] - bManNumberMatch[1] } } else if (bManNumberMatch) { return 1 } return localeCompare(a, b) }) const man = mans[0] if (man) { await this.viewMan(man) } else { return this.helpSearch(args) } } helpSearch (args) { return this.npm.exec('help-search', args) } async viewMan (man) { const env = {} Object.keys(process.env).forEach(function (i) { env[i] = process.env[i] }) const viewer = this.npm.config.get('viewer') const opts = { env, stdio: 'inherit', } let bin = 'man' const args = [] switch (viewer) { case 'woman': bin = 'emacsclient' args.push('-e', `(woman-find-file '${man}')`) break case 'browser': await openUrl(this.npm, this.htmlMan(man), 'help available at the following URL', true) return default: args.push(man) break } const proc = spawn(bin, args, opts) return new Promise((resolve, reject) => { proc.on('exit', (code) => { if (code) { return reject(new Error(`help process exited with code: ${code}`)) } return resolve() }) }) } // Returns the path to the html version of the man page htmlMan (man) { let sect = man.match(manNumberRegex)[1] const f = path.basename(man).replace(manNumberRegex, '') switch (sect) { case '1': sect = 'commands' break case '5': sect = 'configuring-npm' break case '7': sect = 'using-npm' break } return 'file:///' + path.resolve(__dirname, '..', '..', 'docs', 'output', sect, f + '.html') } } module.exports = Help
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