| 1 | var fs = require('fs')
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| 2 | var u = require('./util')
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| 3 | var multicb = require('multicb')
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| 4 | var Mentions = require('ssb-mentions')
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| 5 |
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| 6 | exports.help = `
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| 7 | Usage: git ssb pull-request [-b <base>] [-h <head>],
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| 8 | [-m <message> | -F <file>]
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| 9 |
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| 10 | Create a pull request. This requests that changes from <head>
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| 11 | be merged into <base>.
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| 12 |
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| 13 | Arguments:
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| 14 | head the head repo/branch, in format "[<repo>:]<branch>"
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| 15 | Defaults to 'origin' or 'ssb', and the current branch.
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| 16 | base the base repo/branch, in format "[<repo>:]<branch>"
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| 17 | where <repo> may be a repo id or git remote name.
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| 18 | Defaults to the upstream of <head>, or <head>,
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| 19 | and its default branch (usually 'master')
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| 20 | message the text for the pull-request message
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| 21 | file name of file from which to read pull-request text
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| 22 | `
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| 23 |
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| 24 | function splitEnd(str) {
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| 25 | return str ? /(?:(.*?):)?(.*)/.exec(str).slice(1) : []
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| 26 | }
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| 27 |
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| 28 | function mdLink(text, href) {
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| 29 | return !text || text == href ? href : '[' + text + '](' + href + ')'
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| 30 | }
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| 31 |
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| 32 | function getRev(repo, branch, cb) {
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| 33 | var Repo = require('pull-git-repo')
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| 34 | Repo(repo).resolveRef(branch, function (err, rev) {
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| 35 | if (err && err.name === 'NotFoundError') err = null
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| 36 | cb(null, rev)
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| 37 | })
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| 38 | }
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| 39 |
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| 40 | function formatGitLog(a, b) {
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| 41 | var range = a + '..' + b
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| 42 | try {
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| 43 |
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| 44 | return u.gitSync('log', '--no-color', '--cherry',
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| 45 | '--format=%h (%aN, %ar)%n%w(78,3,3)%s%n%+b', range)
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| 46 | } catch(e) {
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| 47 | return '`git log ' + range + '`'
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| 48 | }
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| 49 | }
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| 50 |
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| 51 | exports.fn = function pullRequest(argv) {
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| 52 | if (argv._.length > 0) return u.help('pull-request')
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| 53 |
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| 54 | var head = splitEnd(argv.head || argv.h)
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| 55 | var headRepoId = u.getRemote(head[0])
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| 56 | var headBranch = head[1] || u.getCurrentBranch()
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| 57 | if (!headRepoId || !headBranch) throw 'unable to find head'
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| 58 |
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| 59 | var text = argv.message || argv.m
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| 60 | var filename = argv.file || argv.F
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| 61 | if (text && filename)
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| 62 | throw 'only one of message and file option may be specified'
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| 63 | if (filename && !fs.existsSync(filename))
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| 64 | throw 'file ' + JSON.stringify(filename) + ' does not exist'
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| 65 |
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| 66 | var base = splitEnd(argv.base || argv.b)
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| 67 | var baseRepoId = base[0]
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| 68 | var baseBranch = base[1]
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| 69 | if (baseRepoId) {
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| 70 | baseRepoId = u.getRemote(baseRepoId)
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| 71 | if (!baseRepoId) throw 'invalid base repo ' + JSON.stringify(base[0])
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| 72 | }
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| 73 |
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| 74 | var ssbGit = require('ssb-git-repo')
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| 75 | var sbot
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| 76 | var done = multicb({pluck: 1, spread: true})
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| 77 | var gotFeed = done()
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| 78 | var gotHeadRepo = done()
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| 79 | var gotBaseRepo = done()
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| 80 | u.getSbot(argv, function (err, _sbot) {
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| 81 | if (err) throw err
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| 82 | sbot = _sbot
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| 83 | sbot.whoami(gotFeed)
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| 84 | ssbGit.getRepo(sbot, headRepoId, gotHeadRepo)
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| 85 | if (baseRepoId) ssbGit.getRepo(sbot, baseRepoId, gotBaseRepo)
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| 86 | else gotBaseRepo()
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| 87 | })
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| 88 |
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| 89 | done(function (err, feed, headRepo, baseRepo) {
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| 90 | if (err) throw err
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| 91 | sbot.id = feed.id
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| 92 |
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| 93 |
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| 94 |
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| 95 | if (!baseRepo) {
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| 96 | if (headRepo.upstream) {
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| 97 | baseRepo = headRepo.upstream
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| 98 | } else {
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| 99 | baseRepo = headRepo
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| 100 | }
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| 101 | baseRepoId = baseRepo.id
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| 102 | }
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| 103 |
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| 104 | if (baseBranch) next()
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| 105 | else baseRepo.getHead(function (err, ref) {
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| 106 | if (err) throw err
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| 107 | baseBranch = ref && ref.replace(/refs\/heads\//, '') || 'master'
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| 108 | next()
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| 109 | })
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| 110 |
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| 111 | function next() {
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| 112 | if (text) gotText(text, doneEditing)
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| 113 | else if (filename) fs.readFile(filename, 'utf8', gotText)
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| 114 | else {
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| 115 | var done = multicb({pluck: 1, spread: true})
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| 116 | u.getName(sbot, [sbot.id, null], baseRepoId, done())
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| 117 | u.getName(sbot, [sbot.id, null], headRepoId, done())
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| 118 | getRev(baseRepo, baseBranch, done())
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| 119 | getRev(headRepo, headBranch, done())
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| 120 | done(editText)
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| 121 | }
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| 122 | }
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| 123 | })
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| 124 |
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| 125 | function editText(err, baseRepoName, headRepoName, baseRev, headRev) {
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| 126 | if (err) throw err
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| 127 | var defaultText = 'Requesting a pull ' +
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| 128 | 'to ' + mdLink(baseRepoName, baseRepoId) + ':' + baseBranch + '\n' +
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| 129 | 'from ' + mdLink(headRepoName, headRepoId) + ':' + headBranch + '\n\n' +
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| 130 | 'Write message text for this pull request.' +
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| 131 | (baseRev && headRev
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| 132 | ? '\n\nChanges:\n\n' + formatGitLog(baseRev, headRev)
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| 133 | : '')
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| 134 | u.editor('PULLREQ', defaultText, gotText, doneEditing)
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| 135 | }
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| 136 |
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| 137 | function gotText(text, cb) {
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| 138 | if (!text) return cb('empty message: aborting')
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| 139 | var prSchemas = require('ssb-pull-requests/lib/schemas')
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| 140 | var value = prSchemas.new(baseRepoId, baseBranch,
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| 141 | headRepoId, headBranch, text)
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| 142 | var mentions = Mentions(text)
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| 143 | if (mentions.length) value.mentions = mentions
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| 144 | sbot.publish(value, function (err, msg) {
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| 145 | if (err) return cb(err)
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| 146 | console.log(JSON.stringify(msg, 0, 2))
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| 147 | cb(null)
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| 148 | })
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| 149 | }
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| 150 |
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| 151 | function doneEditing(err) {
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| 152 | if (err) console.error(err)
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| 153 | sbot.close()
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| 154 | }
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| 155 | }
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