node/deps/npm/lib/cache/add-remote-git.js

286 lines
8.5 KiB
JavaScript

var mkdir = require("mkdirp")
, assert = require("assert")
, spawn = require("child_process").spawn
, exec = require("child_process").execFile
, once = require("once")
, fs = require("graceful-fs")
, log = require("npmlog")
, path = require("path")
, url = require("url")
, chownr = require("chownr")
, zlib = require("zlib")
, which = require("which")
, crypto = require("crypto")
, chmodr = require("chmodr")
, npm = require("../npm.js")
, rm = require("../utils/gently-rm.js")
, inflight = require("inflight")
, locker = require("../utils/locker.js")
, lock = locker.lock
, unlock = locker.unlock
, getCacheStat = require("./get-stat.js")
, addLocalTarball = require("./add-local-tarball.js")
// 1. cacheDir = path.join(cache,'_git-remotes',sha1(u))
// 2. checkGitDir(cacheDir) ? 4. : 3. (rm cacheDir if necessary)
// 3. git clone --mirror u cacheDir
// 4. cd cacheDir && git fetch -a origin
// 5. git archive /tmp/random.tgz
// 6. addLocalTarball(/tmp/random.tgz) <gitref> --format=tar --prefix=package/
// silent flag is used if this should error quietly
module.exports = function addRemoteGit (u, parsed, silent, cb_) {
assert(typeof u === "string", "must have git URL")
assert(typeof parsed === "object", "must have parsed query")
assert(typeof cb_ === "function", "must have callback")
function cb (er, data) {
unlock(u, function () { cb_(er, data) })
}
cb_ = inflight(u, cb_)
if (!cb_) return
// git is so tricky!
// if the path is like ssh://foo:22/some/path then it works, but
// it needs the ssh://
// If the path is like ssh://foo:some/path then it works, but
// only if you remove the ssh://
var origUrl = u
u = u.replace(/^git\+/, "")
.replace(/#.*$/, "")
// ssh paths that are scp-style urls don't need the ssh://
if (parsed.pathname.match(/^\/?:/)) {
u = u.replace(/^ssh:\/\//, "")
}
lock(u, function (er) {
if (er) return cb(er)
// figure out what we should check out.
var co = parsed.hash && parsed.hash.substr(1) || "master"
var v = crypto.createHash("sha1").update(u).digest("hex").slice(0, 8)
v = u.replace(/[^a-zA-Z0-9]+/g, '-') + '-' + v
log.verbose("addRemoteGit", [u, co])
var p = path.join(npm.config.get("cache"), "_git-remotes", v)
checkGitDir(p, u, co, origUrl, silent, function(er, data) {
chmodr(p, npm.modes.file, function(erChmod) {
if (er) return cb(er, data)
return cb(erChmod, data)
})
})
})
}
function checkGitDir (p, u, co, origUrl, silent, cb) {
fs.stat(p, function (er, s) {
if (er) return cloneGitRemote(p, u, co, origUrl, silent, cb)
if (!s.isDirectory()) return rm(p, function (er){
if (er) return cb(er)
cloneGitRemote(p, u, co, origUrl, silent, cb)
})
var git = npm.config.get("git")
var args = [ "config", "--get", "remote.origin.url" ]
var env = gitEnv()
// check for git
which(git, function (err) {
if (err) {
err.code = "ENOGIT"
return cb(err)
}
exec(git, args, {cwd: p, env: env}, function (er, stdout, stderr) {
var stdoutTrimmed = (stdout + "\n" + stderr).trim()
if (er || u !== stdout.trim()) {
log.warn( "`git config --get remote.origin.url` returned "
+ "wrong result ("+u+")", stdoutTrimmed )
return rm(p, function (er){
if (er) return cb(er)
cloneGitRemote(p, u, co, origUrl, silent, cb)
})
}
log.verbose("git remote.origin.url", stdoutTrimmed)
archiveGitRemote(p, u, co, origUrl, cb)
})
})
})
}
function checkGitDir (p, u, co, origUrl, silent, cb) {
fs.stat(p, function (er, s) {
if (er) return cloneGitRemote(p, u, co, origUrl, silent, cb)
if (!s.isDirectory()) return rm(p, function (er){
if (er) return cb(er)
cloneGitRemote(p, u, co, origUrl, silent, cb)
})
var git = npm.config.get("git")
var args = [ "config", "--get", "remote.origin.url" ]
var env = gitEnv()
// check for git
which(git, function (err) {
if (err) {
err.code = "ENOGIT"
return cb(err)
}
exec(git, args, {cwd: p, env: env}, function (er, stdout, stderr) {
var stdoutTrimmed = (stdout + "\n" + stderr).trim()
if (er || u !== stdout.trim()) {
log.warn( "`git config --get remote.origin.url` returned "
+ "wrong result ("+u+")", stdoutTrimmed )
return rm(p, function (er){
if (er) return cb(er)
cloneGitRemote(p, u, co, origUrl, silent, cb)
})
}
log.verbose("git remote.origin.url", stdoutTrimmed)
archiveGitRemote(p, u, co, origUrl, cb)
})
})
})
}
function cloneGitRemote (p, u, co, origUrl, silent, cb) {
mkdir(p, function (er) {
if (er) return cb(er)
var git = npm.config.get("git")
var args = [ "clone", "--mirror", u, p ]
var env = gitEnv()
// check for git
which(git, function (err) {
if (err) {
err.code = "ENOGIT"
return cb(err)
}
exec(git, args, {cwd: p, env: env}, function (er, stdout, stderr) {
stdout = (stdout + "\n" + stderr).trim()
if (er) {
if (silent) {
log.verbose("git clone " + u, stdout)
} else {
log.error("git clone " + u, stdout)
}
return cb(er)
}
log.verbose("git clone " + u, stdout)
archiveGitRemote(p, u, co, origUrl, cb)
})
})
})
}
function archiveGitRemote (p, u, co, origUrl, cb) {
var git = npm.config.get("git")
var archive = [ "fetch", "-a", "origin" ]
var resolve = [ "rev-list", "-n1", co ]
var env = gitEnv()
var resolved = null
var tmp
exec(git, archive, {cwd: p, env: env}, function (er, stdout, stderr) {
stdout = (stdout + "\n" + stderr).trim()
if (er) {
log.error("git fetch -a origin ("+u+")", stdout)
return cb(er)
}
log.verbose("git fetch -a origin ("+u+")", stdout)
tmp = path.join(npm.tmp, Date.now()+"-"+Math.random(), "tmp.tgz")
verifyOwnership()
})
function verifyOwnership() {
if (process.platform === "win32") {
log.silly("verifyOwnership", "skipping for windows")
resolveHead()
} else {
getCacheStat(function(er, cs) {
if (er) {
log.error("Could not get cache stat")
return cb(er)
}
chownr(p, cs.uid, cs.gid, function(er) {
if (er) {
log.error("Failed to change folder ownership under npm cache for %s", p)
return cb(er)
}
resolveHead()
})
})
}
}
function resolveHead () {
exec(git, resolve, {cwd: p, env: env}, function (er, stdout, stderr) {
stdout = (stdout + "\n" + stderr).trim()
if (er) {
log.error("Failed resolving git HEAD (" + u + ")", stderr)
return cb(er)
}
log.verbose("git rev-list -n1 " + co, stdout)
var parsed = url.parse(origUrl)
parsed.hash = stdout
resolved = url.format(parsed)
// https://github.com/npm/npm/issues/3224
// node incorrectly sticks a / at the start of the path
// We know that the host won't change, so split and detect this
var spo = origUrl.split(parsed.host)
var spr = resolved.split(parsed.host)
if (spo[1].charAt(0) === ':' && spr[1].charAt(0) === '/')
spr[1] = spr[1].slice(1)
resolved = spr.join(parsed.host)
log.verbose('resolved git url', resolved)
next()
})
}
function next () {
mkdir(path.dirname(tmp), function (er) {
if (er) return cb(er)
var gzip = zlib.createGzip({ level: 9 })
var git = npm.config.get("git")
var args = ["archive", co, "--format=tar", "--prefix=package/"]
var out = fs.createWriteStream(tmp)
var env = gitEnv()
cb = once(cb)
var cp = spawn(git, args, { env: env, cwd: p })
cp.on("error", cb)
cp.stderr.on("data", function(chunk) {
log.silly(chunk.toString(), "git archive")
})
cp.stdout.pipe(gzip).pipe(out).on("close", function() {
addLocalTarball(tmp, null, null, function(er, data) {
if (data) data._resolved = resolved
cb(er, data)
})
})
})
}
}
var gitEnv_
function gitEnv () {
// git responds to env vars in some weird ways in post-receive hooks
// so don't carry those along.
if (gitEnv_) return gitEnv_
gitEnv_ = {}
for (var k in process.env) {
if (!~['GIT_PROXY_COMMAND','GIT_SSH','GIT_SSL_NO_VERIFY'].indexOf(k) && k.match(/^GIT/)) continue
gitEnv_[k] = process.env[k]
}
return gitEnv_
}