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123 lines
4.0 KiB
JavaScript
123 lines
4.0 KiB
JavaScript
'use strict'
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var url = require('url')
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var gitHosts = require('./git-host-info.js')
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var GitHost = module.exports = require('./git-host.js')
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var protocolToRepresentationMap = {
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'git+ssh': 'sshurl',
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'git+https': 'https',
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'ssh': 'sshurl',
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'git': 'git'
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}
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function protocolToRepresentation (protocol) {
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if (protocol.substr(-1) === ':') protocol = protocol.slice(0, -1)
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return protocolToRepresentationMap[protocol] || protocol
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}
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var authProtocols = {
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'git:': true,
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'https:': true,
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'git+https:': true,
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'http:': true,
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'git+http:': true
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}
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var cache = {}
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module.exports.fromUrl = function (giturl, opts) {
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if (typeof giturl !== 'string') return
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var key = giturl + JSON.stringify(opts || {})
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if (!(key in cache)) {
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cache[key] = fromUrl(giturl, opts)
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}
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return cache[key]
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}
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function fromUrl (giturl, opts) {
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if (giturl == null || giturl === '') return
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var url = fixupUnqualifiedGist(
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isGitHubShorthand(giturl) ? 'github:' + giturl : giturl
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)
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var parsed = parseGitUrl(url)
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var shortcutMatch = url.match(new RegExp('^([^:]+):(?:(?:[^@:]+(?:[^@]+)?@)?([^/]*))[/](.+?)(?:[.]git)?($|#)'))
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var matches = Object.keys(gitHosts).map(function (gitHostName) {
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try {
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var gitHostInfo = gitHosts[gitHostName]
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var auth = null
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if (parsed.auth && authProtocols[parsed.protocol]) {
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auth = decodeURIComponent(parsed.auth)
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}
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var committish = parsed.hash ? decodeURIComponent(parsed.hash.substr(1)) : null
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var user = null
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var project = null
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var defaultRepresentation = null
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if (shortcutMatch && shortcutMatch[1] === gitHostName) {
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user = shortcutMatch[2] && decodeURIComponent(shortcutMatch[2])
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project = decodeURIComponent(shortcutMatch[3])
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defaultRepresentation = 'shortcut'
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} else {
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if (parsed.host && parsed.host !== gitHostInfo.domain && parsed.host.replace(/^www[.]/, '') !== gitHostInfo.domain) return
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if (!gitHostInfo.protocols_re.test(parsed.protocol)) return
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if (!parsed.path) return
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var pathmatch = gitHostInfo.pathmatch
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var matched = parsed.path.match(pathmatch)
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if (!matched) return
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if (matched[1] != null) user = decodeURIComponent(matched[1].replace(/^:/, ''))
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if (matched[2] != null) project = decodeURIComponent(matched[2])
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defaultRepresentation = protocolToRepresentation(parsed.protocol)
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}
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return new GitHost(gitHostName, user, auth, project, committish, defaultRepresentation, opts)
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} catch (ex) {
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if (!(ex instanceof URIError)) throw ex
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}
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}).filter(function (gitHostInfo) { return gitHostInfo })
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if (matches.length !== 1) return
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return matches[0]
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}
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function isGitHubShorthand (arg) {
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// Note: This does not fully test the git ref format.
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// See https://www.kernel.org/pub/software/scm/git/docs/git-check-ref-format.html
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//
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// The only way to do this properly would be to shell out to
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// git-check-ref-format, and as this is a fast sync function,
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// we don't want to do that. Just let git fail if it turns
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// out that the commit-ish is invalid.
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// GH usernames cannot start with . or -
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return /^[^:@%/\s.-][^:@%/\s]*[/][^:@\s/%]+(?:#.*)?$/.test(arg)
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}
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function fixupUnqualifiedGist (giturl) {
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// necessary for round-tripping gists
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var parsed = url.parse(giturl)
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if (parsed.protocol === 'gist:' && parsed.host && !parsed.path) {
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return parsed.protocol + '/' + parsed.host
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} else {
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return giturl
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}
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}
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function parseGitUrl (giturl) {
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if (typeof giturl !== 'string') giturl = '' + giturl
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var matched = giturl.match(/^([^@]+)@([^:/]+):[/]?((?:[^/]+[/])?[^/]+?)(?:[.]git)?(#.*)?$/)
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if (!matched) return url.parse(giturl)
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return {
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protocol: 'git+ssh:',
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slashes: true,
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auth: matched[1],
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host: matched[2],
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port: null,
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hostname: matched[2],
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hash: matched[4],
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search: null,
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query: null,
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pathname: '/' + matched[3],
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path: '/' + matched[3],
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href: 'git+ssh://' + matched[1] + '@' + matched[2] +
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'/' + matched[3] + (matched[4] || '')
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}
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}
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