rnystrom@google.com
e4ce65ae8f
Review URL: https://chromiumcodereview.appspot.com//10442023 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@7967 260f80e4-7a28-3924-810f-c04153c831b5
62 lines
1.9 KiB
Dart
62 lines
1.9 KiB
Dart
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#library('git_source');
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#import('io.dart');
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#import('package.dart');
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#import('source.dart');
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#import('utils.dart');
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/**
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* A package source that installs packages from Git repos.
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*/
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class GitSource extends Source {
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final String name = "git";
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// TODO(rnystrom): Git packages could in theory be cached, but that adds a
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// lot of complexity. When you install a git package, you are installing
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// and pinning to a specific commit. That means different installs of the
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// same git path but at different commits need to be disambiguated in the
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// system cache. It may also lead to a lot of garbage in the system cache.
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// For now, we are punting and simply not caching them.
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final bool shouldCache = false;
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GitSource();
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/**
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* Clones a Git repo to the local filesystem.
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*/
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Future<bool> install(PackageId id, String destPath) {
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return isGitInstalled.chain((installed) {
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if (installed) {
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return runProcess("git",
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["clone", "--progress", id.description, destPath],
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pipeStdout: true, pipeStderr: true).
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transform((result) => result.success);
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} else {
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throw new Exception(
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"Cannot install '${id.name}' from Git (${id.description}).\n"
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"Please ensure Git is correctly installed.");
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}
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});
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}
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/**
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* The package name of a Git repo is the name of the directory into which
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* it'll be cloned.
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*/
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String packageName(PackageId id) =>
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basename(id.description).replaceFirst(const RegExp("\.git\$"), "");
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/**
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* Ensures [description] is a Git URL.
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*/
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void validateDescription(description) {
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if (description is! String) {
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throw new FormatException("The description must be a git URL.");
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}
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}
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}
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