GITC: Add gitc-init subcommand to repo.
Adds the new gitc-init command to set up a GITC client. Gitc-init
sets up the client directory and calls repo init within it. Once
the repo is initialized, then generates a GITC manifest file
by using git ls-remote on each project and retrieving the HEAD SHA
to use as the revision attribute.
Gitc-init inherits from and has all the options as repo init.
Change-Id: Icd7e47e90eab752a77de7c80ebc98cfe16bf6de3
diff --git a/repo b/repo
index f12354a..bf8fa3d 100755
--- a/repo
+++ b/repo
@@ -108,6 +108,7 @@
S_manifests = 'manifests' # special manifest repository
REPO_MAIN = S_repo + '/main.py' # main script
MIN_PYTHON_VERSION = (2, 6) # minimum supported python version
+GITC_MANIFEST_DIR = '/usr/local/google/gitc'
import errno
@@ -212,14 +213,25 @@
dest='config_name', action="store_true", default=False,
help='Always prompt for name/e-mail')
+def _GitcInitOptions(init_optparse):
+ g = init_optparse.add_option_group('GITC options')
+ g.add_option('-f', '--manifest-file',
+ dest='manifest_file',
+ help='Optional manifest file to use for this GITC client.')
+ g.add_option('-c', '--gitc-client',
+ dest='gitc_client',
+ help='The name for the new gitc_client instance.')
+
class CloneFailure(Exception):
"""Indicate the remote clone of repo itself failed.
"""
-def _Init(args):
+def _Init(args, gitc_init=False):
"""Installs repo by cloning it over the network.
"""
+ if gitc_init:
+ _GitcInitOptions(init_optparse)
opt, args = init_optparse.parse_args(args)
if args:
init_optparse.print_usage()
@@ -242,6 +254,15 @@
raise CloneFailure()
try:
+ if gitc_init:
+ client_dir = os.path.join(GITC_MANIFEST_DIR, opt.gitc_client)
+ if not os.path.exists(client_dir):
+ os.makedirs(client_dir)
+ os.chdir(client_dir)
+ if os.path.exists(repodir):
+ # This GITC Client has already initialized repo so continue.
+ return
+
os.mkdir(repodir)
except OSError as e:
if e.errno != errno.EEXIST:
@@ -732,11 +753,11 @@
_Help(args)
if not cmd:
_NotInstalled()
- if cmd == 'init':
+ if cmd == 'init' or cmd == 'gitc-init':
if my_git:
_SetDefaultsTo(my_git)
try:
- _Init(args)
+ _Init(args, gitc_init=(cmd == 'gitc-init'))
except CloneFailure:
shutil.rmtree(os.path.join(repodir, S_repo), ignore_errors=True)
sys.exit(1)
diff --git a/subcmds/gitc_init.py b/subcmds/gitc_init.py
new file mode 100644
index 0000000..9b9cefd
--- /dev/null
+++ b/subcmds/gitc_init.py
@@ -0,0 +1,123 @@
+#
+# Copyright (C) 2015 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from __future__ import print_function
+import os
+import shutil
+import sys
+
+import git_command
+from subcmds import init
+
+
+GITC_MANIFEST_DIR = '/usr/local/google/gitc'
+GITC_FS_ROOT_DIR = '/gitc/sha/rw'
+NUM_BATCH_RETRIEVE_REVISIONID = 300
+
+
+class GitcInit(init.Init):
+ common = True
+ helpSummary = "Initialize a GITC Client."
+ helpUsage = """
+%prog [options] [client name]
+"""
+ helpDescription = """
+The '%prog' command is ran to initialize a new GITC client for use
+with the GITC file system.
+
+This command will setup the client directory, initialize repo, just
+like repo init does, and then downloads the manifest collection
+and installs in in the .repo/directory of the GITC client.
+
+Once this is done, a GITC manifest is generated by pulling the HEAD
+SHA for each project and generates the properly formatted XML file
+and installs it as .manifest in the GITC client directory.
+
+The -c argument is required to specify the GITC client name.
+
+The optional -f argument can be used to specify the manifest file to
+use for this GITC client.
+"""
+
+ def _Options(self, p):
+ super(GitcInit, self)._Options(p)
+ g = p.add_option_group('GITC options')
+ g.add_option('-f', '--manifest-file',
+ dest='manifest_file',
+ help='Optional manifest file to use for this GITC client.')
+ g.add_option('-c', '--gitc-client',
+ dest='gitc_client',
+ help='The name for the new gitc_client instance.')
+
+ def Execute(self, opt, args):
+ if not opt.gitc_client:
+ print('fatal: gitc client (-c) is required', file=sys.stderr)
+ sys.exit(1)
+ self.client_dir = os.path.join(GITC_MANIFEST_DIR, opt.gitc_client)
+ if not os.path.exists(GITC_MANIFEST_DIR):
+ os.makedirs(GITC_MANIFEST_DIR)
+ if not os.path.exists(self.client_dir):
+ os.mkdir(self.client_dir)
+ super(GitcInit, self).Execute(opt, args)
+ if opt.manifest_file:
+ if not os.path.exists(opt.manifest_file):
+ print('fatal: Specified manifest file %s does not exist.' %
+ opt.manifest_file)
+ sys.exit(1)
+ shutil.copyfile(opt.manifest_file,
+ os.path.join(self.client_dir, '.manifest'))
+ else:
+ self._GenerateGITCManifest()
+ print('Please run `cd %s` to view your GITC client.' %
+ os.path.join(GITC_FS_ROOT_DIR, opt.gitc_client))
+
+ def _SetProjectRevisions(self, projects, branch):
+ """Sets the revisionExpr for a list of projects.
+
+ Because of the limit of open file descriptors allowed, length of projects
+ should not be overly large. Recommend calling this function multiple times
+ with each call not exceeding NUM_BATCH_RETRIEVE_REVISIONID projects.
+
+ @param projects: List of project objects to set the revionExpr for.
+ @param branch: The remote branch to retrieve the SHA from. If branch is
+ None, 'HEAD' is used.
+ """
+ project_gitcmds = [(
+ project, git_command.GitCommand(None,
+ ['ls-remote',
+ project.remote.url,
+ branch], capture_stdout=True))
+ for project in projects]
+ for proj, gitcmd in project_gitcmds:
+ if gitcmd.Wait():
+ print('FATAL: Failed to retrieve revisionID for %s' % project)
+ sys.exit(1)
+ proj.revisionExpr = gitcmd.stdout.split('\t')[0]
+
+ def _GenerateGITCManifest(self):
+ """Generate a manifest for shafsd to use for this GITC client."""
+ print('Generating GITC Manifest by fetching revision SHAs for each '
+ 'project.')
+ manifest = self.manifest
+ project_gitcmd_dict = {}
+ index = 0
+ while index < len(manifest.projects):
+ self._SetProjectRevisions(
+ manifest.projects[index:(index+NUM_BATCH_RETRIEVE_REVISIONID)],
+ manifest.default.revisionExpr)
+ index += NUM_BATCH_RETRIEVE_REVISIONID
+ # Save the manifest.
+ with open(os.path.join(self.client_dir, '.manifest'), 'w') as f:
+ manifest.Save(f)
