Files
bower/lib/core/resolvers/GitRemoteResolver.js
2013-06-23 12:17:53 +01:00

91 lines
2.8 KiB
JavaScript

var util = require('util');
var Q = require('q');
var mout = require('mout');
var GitResolver = require('./GitResolver');
var cmd = require('../../util/cmd');
function GitRemoteResolver(decEndpoint, config, logger) {
if (!mout.string.startsWith(decEndpoint.source, 'file://')) {
// Trim trailing slashes
decEndpoint.source = decEndpoint.source.replace(/\/+$/, '');
// Ensure trailing .git
if (!mout.string.endsWith(decEndpoint.source, '.git')) {
decEndpoint.source += '.git';
}
}
GitResolver.call(this, decEndpoint, config, logger);
// If the name was guessed, remove the trailing .git
if (this._guessedName && mout.string.endsWith(this._name, '.git')) {
this._name = this._name.slice(0, -4);
}
}
util.inherits(GitRemoteResolver, GitResolver);
mout.object.mixIn(GitRemoteResolver, GitResolver);
// -----------------
GitRemoteResolver.prototype._checkout = function () {
var branch;
var promise;
var resolution = this._resolution;
this._logger.action('checkout', resolution.tag || resolution.branch || resolution.commit, {
resolution: resolution,
to: this._tempDir
});
// If resolution is a commit, we need to clone the entire repo and check it out
// Because a commit is not a named ref, there's no better solution
if (resolution.type === 'commit') {
promise = cmd('git', ['clone', this._source, this._tempDir])
.then(cmd.bind(cmd, 'git', ['checkout', resolution.commit], { cwd: this._tempDir }));
// Otherwise we are checking out a named ref so we can optimize it
} else {
branch = resolution.tag || resolution.branch;
promise = cmd('git', ['clone', this._source, '-b', branch, '--depth', 1, '.'], { cwd: this._tempDir });
}
return promise;
};
// ------------------------------
// Grab refs remotely
GitRemoteResolver.refs = function (source) {
var value;
// TODO: Normalize source because of the various available protocols?
value = this._cache.refs.get(source);
if (value) {
return Q.resolve(value);
}
// Store the promise in the refs object
value = cmd('git', ['ls-remote', '--tags', '--heads', source])
.then(function (stdout) {
var refs;
refs = stdout.toString()
.trim() // Trim trailing and leading spaces
.replace(/[\t ]+/g, ' ') // Standardize spaces (some git versions make tabs, other spaces)
.split(/\r?\n/); // Split lines into an array
// Update the refs with the actual refs
this._cache.refs.set(source, refs);
return refs;
}.bind(this));
// Store the promise to be reused until it resolves
// to a specific value
this._cache.refs.set(source);
return value;
};
module.exports = GitRemoteResolver;