android/git-repo
1
Fork 0
mirror of https://gerrit.googlesource.com/git-repo synced 2024-12-21 07:16:21 +00:00
Code Issues Packages Projects Releases Wiki Activity

GITC: Add repo sync support.

Browse Source 
Add repo sync support for GITC checkouts. If the user is in the
GITC client directory they can still pull the sources as normal
if they pass in the --force-gitc argument. Otherwise the user
should call repo sync in the GITC view to update the user's
remote view. (This works because .repo in the GITC view will
link to .repo in the client config directory.)

Part of the support for this change is the refactoring of GITC
related code into gitc_utils.py.

Change-Id: I2636aaa50b450b6f091309db8dd0e8f4dbdad579
This commit is contained in:
Simran Basi 2015-08-10 13:23:23 -07:00
parent 5d0c3a614e
commit bdb5271de3
3 changed files with 108 additions and 53 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

69
gitc_utils.py Normal file
View File

@ -0,0 +1,69 @@
#
# 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 git_command
import git_config
# TODO (sbasi) - Remove this constant and fetch manifest dir from /gitc/.config
GITC_MANIFEST_DIR = '/usr/local/google/gitc/'
GITC_FS_ROOT_DIR = '/gitc/manifest-rw/'
NUM_BATCH_RETRIEVE_REVISIONID = 300
def _set_project_revisions(projects):
"""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.
"""
# Retrieve the commit id for each project based off of it's current
# revisionExpr and it is not already a commit id.
project_gitcmds = [(
project, git_command.GitCommand(None,
['ls-remote',
project.remote.url,
project.revisionExpr],
capture_stdout=True, cwd='/tmp'))
for project in projects if not git_config.IsId(project.revisionExpr)]
for proj, gitcmd in project_gitcmds:
if gitcmd.Wait():
print('FATAL: Failed to retrieve revisionExpr for %s' % project)
sys.exit(1)
proj.revisionExpr = gitcmd.stdout.split('\t')[0]
def generate_gitc_manifest(client_dir, manifest):
"""Generate a manifest for shafsd to use for this GITC client.
@param client_dir: GITC client directory to install the .manifest file in.
@param manifest: XmlManifest object representing the repo manifest.
"""
print('Generating GITC Manifest by fetching revision SHAs for each '
'project.')
project_gitcmd_dict = {}
index = 0
while index < len(manifest.projects):
_set_project_revisions(
manifest.projects[index:(index+NUM_BATCH_RETRIEVE_REVISIONID)])
index += NUM_BATCH_RETRIEVE_REVISIONID
# Save the manifest.
with open(os.path.join(client_dir, '.manifest'), 'w') as f:
manifest.Save(f)

63
subcmds/gitc_init.py
View File

@ -18,15 +18,10 @@ import os
import shutil
import sys
import git_command
import gitc_utils
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."
@ -65,59 +60,21 @@ use for this GITC client.
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)
self.client_dir = os.path.join(gitc_utils.GITC_MANIFEST_DIR,
opt.gitc_client)
if not os.path.exists(gitc_utils.GITC_MANIFEST_DIR):
os.makedirs(gitc_utils.GITC_MANIFEST_DIR)
if not os.path.exists(self.client_dir):
os.mkdir(self.client_dir)
super(GitcInit, self).Execute(opt, args)
# Make the destination manifest file a symlink to repo's so both repo and
# GITC refer to the same manifest.
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()
self.manifest.Override(opt.manifest_file)
gitc_utils.generate_gitc_manifest(self.client_dir, self.manifest)
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)
os.path.join(gitc_utils.GITC_FS_ROOT_DIR, opt.gitc_client))

29
subcmds/sync.py
View File

@ -58,6 +58,7 @@ except ImportError:
from git_command import GIT, git_require
from git_refs import R_HEADS, HEAD
import gitc_utils
from project import Project
from project import RemoteSpec
from command import Command, MirrorSafeCommand
@ -184,6 +185,9 @@ later is required to fix a server side protocol bug.
help="overwrite an existing git directory if it needs to "
"point to a different object directory. WARNING: this "
"may cause loss of data")
p.add_option('--force-gitc',
dest='force_gitc', action='store_true',
help="actually sync sources in the gitc client directory.")
p.add_option('-l', '--local-only',
dest='local_only', action='store_true',
help="only update working tree, don't fetch")
@ -526,6 +530,25 @@ later is required to fix a server side protocol bug.
print('error: both -u and -p must be given', file=sys.stderr)
sys.exit(1)
cwd = os.getcwd()
if cwd.startswith(gitc_utils.GITC_MANIFEST_DIR) and not opt.force_gitc:
print('WARNING this will pull all the sources like a normal repo sync.\n'
'\nIf you want to update your GITC Client View please rerun this '
'command in \n%s%s.\nOr if you actually want to pull the sources, '
'rerun with --force-gitc.' %
(gitc_utils.GITC_FS_ROOT_DIR,
cwd.split(gitc_utils.GITC_MANIFEST_DIR)[1]))
sys.exit(1)
self._gitc_sync = False
if cwd.startswith(gitc_utils.GITC_FS_ROOT_DIR):
self._gitc_sync = True
self._client_name = cwd.split(gitc_utils.GITC_FS_ROOT_DIR)[1].split(
'/')[0]
self._client_dir = os.path.join(gitc_utils.GITC_MANIFEST_DIR,
self._client_name)
print('Updating GITC client: %s' % self._client_name)
if opt.manifest_name:
self.manifest.Override(opt.manifest_name)
@ -642,6 +665,12 @@ later is required to fix a server side protocol bug.
if opt.repo_upgraded:
_PostRepoUpgrade(self.manifest, quiet=opt.quiet)
if self._gitc_sync:
gitc_utils.generate_gitc_manifest(self._client_dir, self.manifest)
print('GITC client successfully synced.')
return
if not opt.local_only:
mp.Sync_NetworkHalf(quiet=opt.quiet,
current_branch_only=opt.current_branch_only,