git ssb

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var spawn = require('child_process').spawn
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var tape = require('tape')
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var path = require('path')
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var mktemp = require('mktemp')
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var rimraf = require('rimraf')
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var fs = require('fs')
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function noop() {}
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var env = Object.create(process.env)
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env.PATH = __dirname + ':' + env.PATH
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env.GIT_AUTHOR_DATE = env.GIT_COMMITTER_DATE = '1000000000 -0500'
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var user = {
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  name: 'test',
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  email: 'test@localhost'
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}
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var userStr = user.name + ' <' + user.email + '>'
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var remote = 'test.js://foo'
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var tmpDir = mktemp.createDirSync(path.join(require('os').tmpdir(), 'XXXXXXX'))
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function handleIpcMessage(t, cb) {
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  return function (msg) {
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    if (msg.error) {
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      var err = new Error(msg.error.message)
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      err.stack = msg.error.stack
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      t.error(err)
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    } else {
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      cb(msg)
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    }
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  }
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}
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tape.Test.prototype.git = function () {
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  var args = [].slice.call(arguments)
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  var doneCb = args.pop()
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  var msgCb = (typeof args[args.length-1] == 'function') && args.pop()
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  return spawn('git', args, {
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    env: env,
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    cwd: tmpDir,
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		stdio: ['ignore', 'inherit', 'inherit', 'ipc']
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  })
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  .on('close', doneCb)
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  .on('message', handleIpcMessage(this, msgCb))
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}
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tape.Test.prototype.items = function (fn, items) {
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  var i = 0
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  return function (item) {
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    fn.apply(this, [item].concat(items[i++]))
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  }.bind(this)
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}
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tape('init repo', function (t) {
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  t.git('init', function (code) {
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    t.equals(code, 0, 'git init')
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    t.git('config', 'user.name', user.name, function (code) {
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      t.equals(code, 0, 'set user name')
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      t.git('config', 'user.email', user.email, function (code) {
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        t.equals(code, 0, 'set user email')
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        t.end()
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      })
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    })
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  })
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})
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tape('push with empty repo', function (t) {
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  t.git('push', remote, function (msg) {
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  }, function (code) {
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    t.equals(code, 0, 'pushed')
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    t.end()
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  })
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})
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tape('make a commit and push', function (t) {
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  var commitMessage = 'Initial commit'
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  var fileName = 'blah.txt'
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  var fileContents = 'i am a file'
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  var fileHash = new Buffer(20)
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  fileHash.hexWrite('68bd10497ea68e91fa85024d0a0b2fe54e212914')
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  var objects = t.items(t.deepEquals, [
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    [{
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      type: 'commit',
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      data: 'tree 75c54aa020772a916853987a03bff7079463a861\nauthor ' + userStr + ' 1000000000 -0500\ncommitter ' + userStr + ' 1000000000 -0500\n\n' + commitMessage + '\n'
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    }, 'got the commit'],
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    [{
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      type: 'tree',
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      data: '100644 ' + fileName + '\0' + fileHash.toString('ascii')
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    }, 'got the tree'],
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    [{
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      type: 'blob', data: fileContents
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    }, 'got the blob']
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  ])
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  var refs = t.items(t.deepEquals, [
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    [{
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      name: 'refs/heads/master',
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      new: 'edb5b50e8019797925820007d318870f8c346726',
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      old: null
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    }, 'got the ref']
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  ])
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  var filePath = path.join(tmpDir, fileName)
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  fs.writeFile(filePath, fileContents, function (err) {
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    t.error(err, 'wrote a file')
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    t.git('add', filePath, function (code) {
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      t.equals(code, 0, 'added file')
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      t.git('commit', '-m', commitMessage, function (code) {
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        t.equals(code, 0, 'made initial commit')
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        t.git('push', '-vv', remote, 'master', function (msg) {
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          if (msg.object)
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            objects(msg.object)
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          else if (msg.ref)
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            refs(msg.ref)
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          else
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            t.notOk(msg, 'unexpected message')
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        }, function (code) {
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          t.equals(code, 0, 'pushed')
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          t.end()
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        })
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      })
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    })
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  })
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})
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/*
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tape('fetch', function (t) {
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  t.git('fetch', '-vv', remote, function (code) {
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    t.equals(code, 0, 'fetched')
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    t.end()
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  })
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})
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*/
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tape.onFinish(function () {
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  if (tmpDir)
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    rimraf.sync(tmpDir)
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})
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