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f2af756425
git-repo/project.py
Conley Owens f2af756425 Add 'shallow' gitfile to symlinks 
This fixes the bug that kept clients from doing things like `git log`
in projects using the clone-depth feature.

Change-Id: Ib4024a7b82ceaa7eb7b8935b007b3e8225e0aea8
2014-04-30 11:34:00 -07:00

2677 lines
81 KiB
Python
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# Copyright (C) 2008 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 traceback
import errno
import filecmp
import os
import random
import re
import shutil
import stat
import subprocess
import sys
import tarfile
import tempfile
import time
from color import Coloring
from git_command import GitCommand, git_require
from git_config import GitConfig, IsId, GetSchemeFromUrl, ID_RE
from error import GitError, HookError, UploadError
from error import ManifestInvalidRevisionError
from error import NoManifestException
from trace import IsTrace, Trace
from git_refs import GitRefs, HEAD, R_HEADS, R_TAGS, R_PUB, R_M
from pyversion import is_python3
if not is_python3():
# pylint:disable=W0622
input = raw_input
# pylint:enable=W0622
def _lwrite(path, content):
lock = '%s.lock' % path
fd = open(lock, 'wb')
try:
fd.write(content)
finally:
fd.close()
try:
os.rename(lock, path)
except OSError:
os.remove(lock)
raise
def _error(fmt, *args):
msg = fmt % args
print('error: %s' % msg, file=sys.stderr)
def not_rev(r):
return '^' + r
def sq(r):
return "'" + r.replace("'", "'\''") + "'"
_project_hook_list = None
def _ProjectHooks():
"""List the hooks present in the 'hooks' directory.
These hooks are project hooks and are copied to the '.git/hooks' directory
of all subprojects.
This function caches the list of hooks (based on the contents of the
'repo/hooks' directory) on the first call.
Returns:
A list of absolute paths to all of the files in the hooks directory.
"""
global _project_hook_list
if _project_hook_list is None:
d = os.path.realpath(os.path.abspath(os.path.dirname(__file__)))
d = os.path.join(d , 'hooks')
_project_hook_list = [os.path.join(d, x) for x in os.listdir(d)]
return _project_hook_list
class DownloadedChange(object):
_commit_cache = None
def __init__(self, project, base, change_id, ps_id, commit):
self.project = project
self.base = base
self.change_id = change_id
self.ps_id = ps_id
self.commit = commit
@property
def commits(self):
if self._commit_cache is None:
self._commit_cache = self.project.bare_git.rev_list(
'--abbrev=8',
'--abbrev-commit',
'--pretty=oneline',
'--reverse',
'--date-order',
not_rev(self.base),
self.commit,
'--')
return self._commit_cache
class ReviewableBranch(object):
_commit_cache = None
def __init__(self, project, branch, base):
self.project = project
self.branch = branch
self.base = base
@property
def name(self):
return self.branch.name
@property
def commits(self):
if self._commit_cache is None:
self._commit_cache = self.project.bare_git.rev_list(
'--abbrev=8',
'--abbrev-commit',
'--pretty=oneline',
'--reverse',
'--date-order',
not_rev(self.base),
R_HEADS + self.name,
'--')
return self._commit_cache
@property
def unabbrev_commits(self):
r = dict()
for commit in self.project.bare_git.rev_list(
not_rev(self.base),
R_HEADS + self.name,
'--'):
r[commit[0:8]] = commit
return r
@property
def date(self):
return self.project.bare_git.log(
'--pretty=format:%cd',
'-n', '1',
R_HEADS + self.name,
'--')
def UploadForReview(self, people, auto_topic=False, draft=False, dest_branch=None):
self.project.UploadForReview(self.name,
people,
auto_topic=auto_topic,
draft=draft,
dest_branch=dest_branch)
def GetPublishedRefs(self):
refs = {}
output = self.project.bare_git.ls_remote(
self.branch.remote.SshReviewUrl(self.project.UserEmail),
'refs/changes/*')
for line in output.split('\n'):
try:
(sha, ref) = line.split()
refs[sha] = ref
except ValueError:
pass
return refs
class StatusColoring(Coloring):
def __init__(self, config):
Coloring.__init__(self, config, 'status')
self.project = self.printer('header', attr = 'bold')
self.branch = self.printer('header', attr = 'bold')
self.nobranch = self.printer('nobranch', fg = 'red')
self.important = self.printer('important', fg = 'red')
self.added = self.printer('added', fg = 'green')
self.changed = self.printer('changed', fg = 'red')
self.untracked = self.printer('untracked', fg = 'red')
class DiffColoring(Coloring):
def __init__(self, config):
Coloring.__init__(self, config, 'diff')
self.project = self.printer('header', attr = 'bold')
class _Annotation:
def __init__(self, name, value, keep):
self.name = name
self.value = value
self.keep = keep
class _CopyFile:
def __init__(self, src, dest, abssrc, absdest):
self.src = src
self.dest = dest
self.abs_src = abssrc
self.abs_dest = absdest
def _Copy(self):
src = self.abs_src
dest = self.abs_dest
# copy file if it does not exist or is out of date
if not os.path.exists(dest) or not filecmp.cmp(src, dest):
try:
# remove existing file first, since it might be read-only
if os.path.exists(dest):
os.remove(dest)
else:
dest_dir = os.path.dirname(dest)
if not os.path.isdir(dest_dir):
os.makedirs(dest_dir)
shutil.copy(src, dest)
# make the file read-only
mode = os.stat(dest)[stat.ST_MODE]
mode = mode & ~(stat.S_IWUSR | stat.S_IWGRP | stat.S_IWOTH)
os.chmod(dest, mode)
except IOError:
_error('Cannot copy file %s to %s', src, dest)
class _LinkFile:
def __init__(self, src, dest, abssrc, absdest):
self.src = src
self.dest = dest
self.abs_src = abssrc
self.abs_dest = absdest
def _Link(self):
src = self.abs_src
dest = self.abs_dest
# link file if it does not exist or is out of date
if not os.path.islink(dest) or os.readlink(dest) != src:
try:
# remove existing file first, since it might be read-only
if os.path.exists(dest):
os.remove(dest)
else:
dest_dir = os.path.dirname(dest)
if not os.path.isdir(dest_dir):
os.makedirs(dest_dir)
os.symlink(src, dest)
except IOError:
_error('Cannot link file %s to %s', src, dest)
class RemoteSpec(object):
def __init__(self,
name,
url = None,
review = None):
self.name = name
self.url = url
self.review = review
class RepoHook(object):
"""A RepoHook contains information about a script to run as a hook.
Hooks are used to run a python script before running an upload (for instance,
to run presubmit checks). Eventually, we may have hooks for other actions.
This shouldn't be confused with files in the 'repo/hooks' directory. Those
files are copied into each '.git/hooks' folder for each project. Repo-level
hooks are associated instead with repo actions.
Hooks are always python. When a hook is run, we will load the hook into the
interpreter and execute its main() function.
"""
def __init__(self,
hook_type,
hooks_project,
topdir,
abort_if_user_denies=False):
"""RepoHook constructor.
Params:
hook_type: A string representing the type of hook. This is also used
to figure out the name of the file containing the hook. For
example: 'pre-upload'.
hooks_project: The project containing the repo hooks. If you have a
manifest, this is manifest.repo_hooks_project. OK if this is None,
which will make the hook a no-op.
topdir: Repo's top directory (the one containing the .repo directory).
Scripts will run with CWD as this directory. If you have a manifest,
this is manifest.topdir
abort_if_user_denies: If True, we'll throw a HookError() if the user
doesn't allow us to run the hook.
"""
self._hook_type = hook_type
self._hooks_project = hooks_project
self._topdir = topdir
self._abort_if_user_denies = abort_if_user_denies
# Store the full path to the script for convenience.
if self._hooks_project:
self._script_fullpath = os.path.join(self._hooks_project.worktree,
self._hook_type + '.py')
else:
self._script_fullpath = None
def _GetHash(self):
"""Return a hash of the contents of the hooks directory.
We'll just use git to do this. This hash has the property that if anything
changes in the directory we will return a different has.
SECURITY CONSIDERATION:
This hash only represents the contents of files in the hook directory, not
any other files imported or called by hooks. Changes to imported files
can change the script behavior without affecting the hash.
Returns:
A string representing the hash. This will always be ASCII so that it can
be printed to the user easily.
"""
assert self._hooks_project, "Must have hooks to calculate their hash."
# We will use the work_git object rather than just calling GetRevisionId().
# That gives us a hash of the latest checked in version of the files that
# the user will actually be executing. Specifically, GetRevisionId()
# doesn't appear to change even if a user checks out a different version
# of the hooks repo (via git checkout) nor if a user commits their own revs.
#
# NOTE: Local (non-committed) changes will not be factored into this hash.
# I think this is OK, since we're really only worried about warning the user
# about upstream changes.
return self._hooks_project.work_git.rev_parse('HEAD')
def _GetMustVerb(self):
"""Return 'must' if the hook is required; 'should' if not."""
if self._abort_if_user_denies:
return 'must'
else:
return 'should'
def _CheckForHookApproval(self):
"""Check to see whether this hook has been approved.
We'll look at the hash of all of the hooks. If this matches the hash that
the user last approved, we're done. If it doesn't, we'll ask the user
about approval.
Note that we ask permission for each individual hook even though we use
the hash of all hooks when detecting changes. We'd like the user to be
able to approve / deny each hook individually. We only use the hash of all
hooks because there is no other easy way to detect changes to local imports.
Returns:
True if this hook is approved to run; False otherwise.
Raises:
HookError: Raised if the user doesn't approve and abort_if_user_denies
was passed to the consturctor.
"""
hooks_config = self._hooks_project.config
git_approval_key = 'repo.hooks.%s.approvedhash' % self._hook_type
# Get the last hash that the user approved for this hook; may be None.
old_hash = hooks_config.GetString(git_approval_key)
# Get the current hash so we can tell if scripts changed since approval.
new_hash = self._GetHash()
if old_hash is not None:
# User previously approved hook and asked not to be prompted again.
if new_hash == old_hash:
# Approval matched. We're done.
return True
else:
# Give the user a reason why we're prompting, since they last told
# us to "never ask again".
prompt = 'WARNING: Scripts have changed since %s was allowed.\n\n' % (
self._hook_type)
else:
prompt = ''
# Prompt the user if we're not on a tty; on a tty we'll assume "no".
if sys.stdout.isatty():
prompt += ('Repo %s run the script:\n'
' %s\n'
'\n'
'Do you want to allow this script to run '
'(yes/yes-never-ask-again/NO)? ') % (
self._GetMustVerb(), self._script_fullpath)
response = input(prompt).lower()
print()
# User is doing a one-time approval.
if response in ('y', 'yes'):
return True
elif response == 'yes-never-ask-again':
hooks_config.SetString(git_approval_key, new_hash)
return True
# For anything else, we'll assume no approval.
if self._abort_if_user_denies:
raise HookError('You must allow the %s hook or use --no-verify.' %
self._hook_type)
return False
def _ExecuteHook(self, **kwargs):
"""Actually execute the given hook.
This will run the hook's 'main' function in our python interpreter.
Args:
kwargs: Keyword arguments to pass to the hook. These are often specific
to the hook type. For instance, pre-upload hooks will contain
a project_list.
"""
# Keep sys.path and CWD stashed away so that we can always restore them
# upon function exit.
orig_path = os.getcwd()
orig_syspath = sys.path
try:
# Always run hooks with CWD as topdir.
os.chdir(self._topdir)
# Put the hook dir as the first item of sys.path so hooks can do
# relative imports. We want to replace the repo dir as [0] so
# hooks can't import repo files.
sys.path = [os.path.dirname(self._script_fullpath)] + sys.path[1:]
# Exec, storing global context in the context dict. We catch exceptions
# and convert to a HookError w/ just the failing traceback.
context = {}
try:
execfile(self._script_fullpath, context)
except Exception:
raise HookError('%s\nFailed to import %s hook; see traceback above.' % (
traceback.format_exc(), self._hook_type))
# Running the script should have defined a main() function.
if 'main' not in context:
raise HookError('Missing main() in: "%s"' % self._script_fullpath)
# Add 'hook_should_take_kwargs' to the arguments to be passed to main.
# We don't actually want hooks to define their main with this argument--
# it's there to remind them that their hook should always take **kwargs.
# For instance, a pre-upload hook should be defined like:
# def main(project_list, **kwargs):
#
# This allows us to later expand the API without breaking old hooks.
kwargs = kwargs.copy()
kwargs['hook_should_take_kwargs'] = True
# Call the main function in the hook. If the hook should cause the
# build to fail, it will raise an Exception. We'll catch that convert
# to a HookError w/ just the failing traceback.
try:
context['main'](**kwargs)
except Exception:
raise HookError('%s\nFailed to run main() for %s hook; see traceback '
'above.' % (
traceback.format_exc(), self._hook_type))
finally:
# Restore sys.path and CWD.
sys.path = orig_syspath
os.chdir(orig_path)
def Run(self, user_allows_all_hooks, **kwargs):
"""Run the hook.
If the hook doesn't exist (because there is no hooks project or because
this particular hook is not enabled), this is a no-op.
Args:
user_allows_all_hooks: If True, we will never prompt about running the
hook--we'll just assume it's OK to run it.
kwargs: Keyword arguments to pass to the hook. These are often specific
to the hook type. For instance, pre-upload hooks will contain
a project_list.
Raises:
HookError: If there was a problem finding the hook or the user declined
to run a required hook (from _CheckForHookApproval).
"""
# No-op if there is no hooks project or if hook is disabled.
if ((not self._hooks_project) or
(self._hook_type not in self._hooks_project.enabled_repo_hooks)):
return
# Bail with a nice error if we can't find the hook.
if not os.path.isfile(self._script_fullpath):
raise HookError('Couldn\'t find repo hook: "%s"' % self._script_fullpath)
# Make sure the user is OK with running the hook.
if (not user_allows_all_hooks) and (not self._CheckForHookApproval()):
return
# Run the hook with the same version of python we're using.
self._ExecuteHook(**kwargs)
class Project(object):
def __init__(self,
manifest,
name,
remote,
gitdir,
objdir,
worktree,
relpath,
revisionExpr,
revisionId,
rebase = True,
groups = None,
sync_c = False,
sync_s = False,
clone_depth = None,
upstream = None,
parent = None,
is_derived = False,
dest_branch = None):
"""Init a Project object.
Args:
manifest: The XmlManifest object.
name: The `name` attribute of manifest.xml's project element.
remote: RemoteSpec object specifying its remote's properties.
gitdir: Absolute path of git directory.
objdir: Absolute path of directory to store git objects.
worktree: Absolute path of git working tree.
relpath: Relative path of git working tree to repo's top directory.
revisionExpr: The `revision` attribute of manifest.xml's project element.
revisionId: git commit id for checking out.
rebase: The `rebase` attribute of manifest.xml's project element.
groups: The `groups` attribute of manifest.xml's project element.
sync_c: The `sync-c` attribute of manifest.xml's project element.
sync_s: The `sync-s` attribute of manifest.xml's project element.
upstream: The `upstream` attribute of manifest.xml's project element.
parent: The parent Project object.
is_derived: False if the project was explicitly defined in the manifest;
True if the project is a discovered submodule.
dest_branch: The branch to which to push changes for review by default.
"""
self.manifest = manifest
self.name = name
self.remote = remote
self.gitdir = gitdir.replace('\\', '/')
self.objdir = objdir.replace('\\', '/')
if worktree:
self.worktree = worktree.replace('\\', '/')
else:
self.worktree = None
self.relpath = relpath
self.revisionExpr = revisionExpr
if revisionId is None \
and revisionExpr \
and IsId(revisionExpr):
self.revisionId = revisionExpr
else:
self.revisionId = revisionId
self.rebase = rebase
self.groups = groups
self.sync_c = sync_c
self.sync_s = sync_s
self.clone_depth = clone_depth
self.upstream = upstream
self.parent = parent
self.is_derived = is_derived
self.subprojects = []
self.snapshots = {}
self.copyfiles = []
self.linkfiles = []
self.annotations = []
self.config = GitConfig.ForRepository(
gitdir = self.gitdir,
defaults = self.manifest.globalConfig)
if self.worktree:
self.work_git = self._GitGetByExec(self, bare=False, gitdir=gitdir)
else:
self.work_git = None
self.bare_git = self._GitGetByExec(self, bare=True, gitdir=gitdir)
self.bare_ref = GitRefs(gitdir)
self.bare_objdir = self._GitGetByExec(self, bare=True, gitdir=objdir)
self.dest_branch = dest_branch
# This will be filled in if a project is later identified to be the
# project containing repo hooks.
self.enabled_repo_hooks = []
@property
def Derived(self):
return self.is_derived
@property
def Exists(self):
return os.path.isdir(self.gitdir)
@property
def CurrentBranch(self):
"""Obtain the name of the currently checked out branch.
The branch name omits the 'refs/heads/' prefix.
None is returned if the project is on a detached HEAD.
"""
b = self.work_git.GetHead()
if b.startswith(R_HEADS):
return b[len(R_HEADS):]
return None
def IsRebaseInProgress(self):
w = self.worktree
g = os.path.join(w, '.git')
return os.path.exists(os.path.join(g, 'rebase-apply')) \
or os.path.exists(os.path.join(g, 'rebase-merge')) \
or os.path.exists(os.path.join(w, '.dotest'))
def IsDirty(self, consider_untracked=True):
"""Is the working directory modified in some way?
"""
self.work_git.update_index('-q',
'--unmerged',
'--ignore-missing',
'--refresh')
if self.work_git.DiffZ('diff-index', '-M', '--cached', HEAD):
return True
if self.work_git.DiffZ('diff-files'):
return True
if consider_untracked and self.work_git.LsOthers():
return True
return False
_userident_name = None
_userident_email = None
@property
def UserName(self):
"""Obtain the user's personal name.
"""
if self._userident_name is None:
self._LoadUserIdentity()
return self._userident_name
@property
def UserEmail(self):
"""Obtain the user's email address. This is very likely
to be their Gerrit login.
"""
if self._userident_email is None:
self._LoadUserIdentity()
return self._userident_email
def _LoadUserIdentity(self):
u = self.bare_git.var('GIT_COMMITTER_IDENT')
m = re.compile("^(.*) <([^>]*)> ").match(u)
if m:
self._userident_name = m.group(1)
self._userident_email = m.group(2)
else:
self._userident_name = ''
self._userident_email = ''
def GetRemote(self, name):
"""Get the configuration for a single remote.
"""
return self.config.GetRemote(name)
def GetBranch(self, name):
"""Get the configuration for a single branch.
"""
return self.config.GetBranch(name)
def GetBranches(self):
"""Get all existing local branches.
"""
current = self.CurrentBranch
all_refs = self._allrefs
heads = {}
for name, ref_id in all_refs.items():
if name.startswith(R_HEADS):
name = name[len(R_HEADS):]
b = self.GetBranch(name)
b.current = name == current
b.published = None
b.revision = ref_id
heads[name] = b
for name, ref_id in all_refs.items():
if name.startswith(R_PUB):
name = name[len(R_PUB):]
b = heads.get(name)
if b:
b.published = ref_id
return heads
def MatchesGroups(self, manifest_groups):
"""Returns true if the manifest groups specified at init should cause
this project to be synced.
Prefixing a manifest group with "-" inverts the meaning of a group.
All projects are implicitly labelled with "all".
labels are resolved in order. In the example case of
project_groups: "all,group1,group2"
manifest_groups: "-group1,group2"
the project will be matched.
The special manifest group "default" will match any project that
does not have the special project group "notdefault"
"""
expanded_manifest_groups = manifest_groups or ['default']
expanded_project_groups = ['all'] + (self.groups or [])
if not 'notdefault' in expanded_project_groups:
expanded_project_groups += ['default']
matched = False
for group in expanded_manifest_groups:
if group.startswith('-') and group[1:] in expanded_project_groups:
matched = False
elif group in expanded_project_groups:
matched = True
return matched
## Status Display ##
def HasChanges(self):
"""Returns true if there are uncommitted changes.
"""
self.work_git.update_index('-q',
'--unmerged',
'--ignore-missing',
'--refresh')
if self.IsRebaseInProgress():
return True
if self.work_git.DiffZ('diff-index', '--cached', HEAD):
return True
if self.work_git.DiffZ('diff-files'):
return True
if self.work_git.LsOthers():
return True
return False
def PrintWorkTreeStatus(self, output_redir=None):
"""Prints the status of the repository to stdout.
Args:
output: If specified, redirect the output to this object.
"""
if not os.path.isdir(self.worktree):
if output_redir == None:
output_redir = sys.stdout
print(file=output_redir)
print('project %s/' % self.relpath, file=output_redir)
print(' missing (run "repo sync")', file=output_redir)
return
self.work_git.update_index('-q',
'--unmerged',
'--ignore-missing',
'--refresh')
rb = self.IsRebaseInProgress()
di = self.work_git.DiffZ('diff-index', '-M', '--cached', HEAD)
df = self.work_git.DiffZ('diff-files')
do = self.work_git.LsOthers()
if not rb and not di and not df and not do and not self.CurrentBranch:
return 'CLEAN'
out = StatusColoring(self.config)
if not output_redir == None:
out.redirect(output_redir)
out.project('project %-40s', self.relpath + '/')
branch = self.CurrentBranch
if branch is None:
out.nobranch('(*** NO BRANCH ***)')
else:
out.branch('branch %s', branch)
out.nl()
if rb:
out.important('prior sync failed; rebase still in progress')
out.nl()
paths = list()
paths.extend(di.keys())
paths.extend(df.keys())
paths.extend(do)
for p in sorted(set(paths)):
try:
i = di[p]
except KeyError:
i = None
try:
f = df[p]
except KeyError:
f = None
if i:
i_status = i.status.upper()
else:
i_status = '-'
if f:
f_status = f.status.lower()
else:
f_status = '-'
if i and i.src_path:
line = ' %s%s\t%s => %s (%s%%)' % (i_status, f_status,
i.src_path, p, i.level)
else:
line = ' %s%s\t%s' % (i_status, f_status, p)
if i and not f:
out.added('%s', line)
elif (i and f) or (not i and f):
out.changed('%s', line)
elif not i and not f:
out.untracked('%s', line)
else:
out.write('%s', line)
out.nl()
return 'DIRTY'
def PrintWorkTreeDiff(self, absolute_paths=False):
"""Prints the status of the repository to stdout.
"""
out = DiffColoring(self.config)
cmd = ['diff']
if out.is_on:
cmd.append('--color')
cmd.append(HEAD)
if absolute_paths:
cmd.append('--src-prefix=a/%s/' % self.relpath)
cmd.append('--dst-prefix=b/%s/' % self.relpath)
cmd.append('--')
p = GitCommand(self,
cmd,
capture_stdout = True,
capture_stderr = True)
has_diff = False
for line in p.process.stdout:
if not has_diff:
out.nl()
out.project('project %s/' % self.relpath)
out.nl()
has_diff = True
print(line[:-1])
p.Wait()
## Publish / Upload ##
def WasPublished(self, branch, all_refs=None):
"""Was the branch published (uploaded) for code review?
If so, returns the SHA-1 hash of the last published
state for the branch.
"""
key = R_PUB + branch
if all_refs is None:
try:
return self.bare_git.rev_parse(key)
except GitError:
return None
else:
try:
return all_refs[key]
except KeyError:
return None
def CleanPublishedCache(self, all_refs=None):
"""Prunes any stale published refs.
"""
if all_refs is None:
all_refs = self._allrefs
heads = set()
canrm = {}
for name, ref_id in all_refs.items():
if name.startswith(R_HEADS):
heads.add(name)
elif name.startswith(R_PUB):
canrm[name] = ref_id
for name, ref_id in canrm.items():
n = name[len(R_PUB):]
if R_HEADS + n not in heads:
self.bare_git.DeleteRef(name, ref_id)
def GetUploadableBranches(self, selected_branch=None):
"""List any branches which can be uploaded for review.
"""
heads = {}
pubed = {}
for name, ref_id in self._allrefs.items():
if name.startswith(R_HEADS):
heads[name[len(R_HEADS):]] = ref_id
elif name.startswith(R_PUB):
pubed[name[len(R_PUB):]] = ref_id
ready = []
for branch, ref_id in heads.items():
if branch in pubed and pubed[branch] == ref_id:
continue
if selected_branch and branch != selected_branch:
continue
rb = self.GetUploadableBranch(branch)
if rb:
ready.append(rb)
return ready
def GetUploadableBranch(self, branch_name):
"""Get a single uploadable branch, or None.
"""
branch = self.GetBranch(branch_name)
base = branch.LocalMerge
if branch.LocalMerge:
rb = ReviewableBranch(self, branch, base)
if rb.commits:
return rb
return None
def UploadForReview(self, branch=None,
people=([],[]),
auto_topic=False,
draft=False,
dest_branch=None):
"""Uploads the named branch for code review.
"""
if branch is None:
branch = self.CurrentBranch
if branch is None:
raise GitError('not currently on a branch')
branch = self.GetBranch(branch)
if not branch.LocalMerge:
raise GitError('branch %s does not track a remote' % branch.name)
if not branch.remote.review:
raise GitError('remote %s has no review url' % branch.remote.name)
if dest_branch is None:
dest_branch = self.dest_branch
if dest_branch is None:
dest_branch = branch.merge
if not dest_branch.startswith(R_HEADS):
dest_branch = R_HEADS + dest_branch
if not branch.remote.projectname:
branch.remote.projectname = self.name
branch.remote.Save()
url = branch.remote.ReviewUrl(self.UserEmail)
if url is None:
raise UploadError('review not configured')
cmd = ['push']
if url.startswith('ssh://'):
rp = ['gerrit receive-pack']
for e in people[0]:
rp.append('--reviewer=%s' % sq(e))
for e in people[1]:
rp.append('--cc=%s' % sq(e))
cmd.append('--receive-pack=%s' % " ".join(rp))
cmd.append(url)
if dest_branch.startswith(R_HEADS):
dest_branch = dest_branch[len(R_HEADS):]
upload_type = 'for'
if draft:
upload_type = 'drafts'
ref_spec = '%s:refs/%s/%s' % (R_HEADS + branch.name, upload_type,
dest_branch)
if auto_topic:
ref_spec = ref_spec + '/' + branch.name
if not url.startswith('ssh://'):
rp = ['r=%s' % p for p in people[0]] + \
['cc=%s' % p for p in people[1]]
if rp:
ref_spec = ref_spec + '%' + ','.join(rp)
cmd.append(ref_spec)
if GitCommand(self, cmd, bare = True).Wait() != 0:
raise UploadError('Upload failed')
msg = "posted to %s for %s" % (branch.remote.review, dest_branch)
self.bare_git.UpdateRef(R_PUB + branch.name,
R_HEADS + branch.name,
message = msg)
## Sync ##
def _ExtractArchive(self, tarpath, path=None):
"""Extract the given tar on its current location
Args:
- tarpath: The path to the actual tar file
"""
try:
with tarfile.open(tarpath, 'r') as tar:
tar.extractall(path=path)
return True
except (IOError, tarfile.TarError) as e:
print("error: Cannot extract archive %s: "
"%s" % (tarpath, str(e)), file=sys.stderr)
return False
def Sync_NetworkHalf(self,
quiet=False,
is_new=None,
current_branch_only=False,
clone_bundle=True,
no_tags=False,
archive=False):
"""Perform only the network IO portion of the sync process.
Local working directory/branch state is not affected.
"""
if archive and not isinstance(self, MetaProject):
if self.remote.url.startswith(('http://', 'https://')):
print("error: %s: Cannot fetch archives from http/https "
"remotes." % self.name, file=sys.stderr)
return False
name = self.relpath.replace('\\', '/')
name = name.replace('/', '_')
tarpath = '%s.tar' % name
topdir = self.manifest.topdir
try:
self._FetchArchive(tarpath, cwd=topdir)
except GitError as e:
print('error: %s' % str(e), file=sys.stderr)
return False
# From now on, we only need absolute tarpath
tarpath = os.path.join(topdir, tarpath)
if not self._ExtractArchive(tarpath, path=topdir):
return False
try:
os.remove(tarpath)
except OSError as e:
print("warn: Cannot remove archive %s: "
"%s" % (tarpath, str(e)), file=sys.stderr)
self._CopyAndLinkFiles()
return True
if is_new is None:
is_new = not self.Exists
if is_new:
self._InitGitDir()
else:
self._UpdateHooks()
self._InitRemote()
if is_new:
alt = os.path.join(self.gitdir, 'objects/info/alternates')
try:
fd = open(alt, 'rb')
try:
alt_dir = fd.readline().rstrip()
finally:
fd.close()
except IOError:
alt_dir = None
else:
alt_dir = None
if clone_bundle \
and alt_dir is None \
and self._ApplyCloneBundle(initial=is_new, quiet=quiet):
is_new = False
if not current_branch_only:
if self.sync_c:
current_branch_only = True
elif not self.manifest._loaded:
# Manifest cannot check defaults until it syncs.
current_branch_only = False
elif self.manifest.default.sync_c:
current_branch_only = True
is_sha1 = False
if ID_RE.match(self.revisionExpr) is not None:
is_sha1 = True
if is_sha1 and self._CheckForSha1():
# Don't need to fetch since we already have this revision
return True
if not self._RemoteFetch(initial=is_new, quiet=quiet, alt_dir=alt_dir,
current_branch_only=current_branch_only,
no_tags=no_tags):
return False
if self.worktree:
self._InitMRef()
else:
self._InitMirrorHead()
try:
os.remove(os.path.join(self.gitdir, 'FETCH_HEAD'))
except OSError:
pass
return True
def PostRepoUpgrade(self):
self._InitHooks()
def _CopyAndLinkFiles(self):
for copyfile in self.copyfiles:
copyfile._Copy()
for linkfile in self.linkfiles:
linkfile._Link()
def GetCommitRevisionId(self):
"""Get revisionId of a commit.
Use this method instead of GetRevisionId to get the id of the commit rather
than the id of the current git object (for example, a tag)
"""
if not self.revisionExpr.startswith(R_TAGS):
return self.GetRevisionId(self._allrefs)
try:
return self.bare_git.rev_list(self.revisionExpr, '-1')[0]
except GitError:
raise ManifestInvalidRevisionError(
'revision %s in %s not found' % (self.revisionExpr,
self.name))
def GetRevisionId(self, all_refs=None):
if self.revisionId:
return self.revisionId
rem = self.GetRemote(self.remote.name)
rev = rem.ToLocal(self.revisionExpr)
if all_refs is not None and rev in all_refs:
return all_refs[rev]
try:
return self.bare_git.rev_parse('--verify', '%s^0' % rev)
except GitError:
raise ManifestInvalidRevisionError(
'revision %s in %s not found' % (self.revisionExpr,
self.name))
def Sync_LocalHalf(self, syncbuf):
"""Perform only the local IO portion of the sync process.
Network access is not required.
"""
self._InitWorkTree()
all_refs = self.bare_ref.all
self.CleanPublishedCache(all_refs)
revid = self.GetRevisionId(all_refs)
def _doff():
self._FastForward(revid)
self._CopyAndLinkFiles()
head = self.work_git.GetHead()
if head.startswith(R_HEADS):
branch = head[len(R_HEADS):]
try:
head = all_refs[head]
except KeyError:
head = None
else:
branch = None
if branch is None or syncbuf.detach_head:
# Currently on a detached HEAD. The user is assumed to
# not have any local modifications worth worrying about.
#
if self.IsRebaseInProgress():
syncbuf.fail(self, _PriorSyncFailedError())
return
if head == revid:
# No changes; don't do anything further.
# Except if the head needs to be detached
#
if not syncbuf.detach_head:
return
else:
lost = self._revlist(not_rev(revid), HEAD)
if lost:
syncbuf.info(self, "discarding %d commits", len(lost))
try:
self._Checkout(revid, quiet=True)
except GitError as e:
syncbuf.fail(self, e)
return
self._CopyAndLinkFiles()
return
if head == revid:
# No changes; don't do anything further.
#
return
branch = self.GetBranch(branch)
if not branch.LocalMerge:
# The current branch has no tracking configuration.
# Jump off it to a detached HEAD.
#
syncbuf.info(self,
"leaving %s; does not track upstream",
branch.name)
try:
self._Checkout(revid, quiet=True)
except GitError as e:
syncbuf.fail(self, e)
return
self._CopyAndLinkFiles()
return
upstream_gain = self._revlist(not_rev(HEAD), revid)
pub = self.WasPublished(branch.name, all_refs)
if pub:
not_merged = self._revlist(not_rev(revid), pub)
if not_merged:
if upstream_gain:
# The user has published this branch and some of those
# commits are not yet merged upstream. We do not want
# to rewrite the published commits so we punt.
#
syncbuf.fail(self,
"branch %s is published (but not merged) and is now %d commits behind"
% (branch.name, len(upstream_gain)))
return
elif pub == head:
# All published commits are merged, and thus we are a
# strict subset. We can fast-forward safely.
#
syncbuf.later1(self, _doff)
return
# Examine the local commits not in the remote. Find the
# last one attributed to this user, if any.
#
local_changes = self._revlist(not_rev(revid), HEAD, format='%H %ce')
last_mine = None
cnt_mine = 0
for commit in local_changes:
commit_id, committer_email = commit.decode('utf-8').split(' ', 1)
if committer_email == self.UserEmail:
last_mine = commit_id
cnt_mine += 1
if not upstream_gain and cnt_mine == len(local_changes):
return
if self.IsDirty(consider_untracked=False):
syncbuf.fail(self, _DirtyError())
return
# If the upstream switched on us, warn the user.
#
if branch.merge != self.revisionExpr:
if branch.merge and self.revisionExpr:
syncbuf.info(self,
'manifest switched %s...%s',
branch.merge,
self.revisionExpr)
elif branch.merge:
syncbuf.info(self,
'manifest no longer tracks %s',
branch.merge)
if cnt_mine < len(local_changes):
# Upstream rebased. Not everything in HEAD
# was created by this user.
#
syncbuf.info(self,
"discarding %d commits removed from upstream",
len(local_changes) - cnt_mine)
branch.remote = self.GetRemote(self.remote.name)
if not ID_RE.match(self.revisionExpr):
# in case of manifest sync the revisionExpr might be a SHA1
branch.merge = self.revisionExpr
branch.Save()
if cnt_mine > 0 and self.rebase:
def _dorebase():
self._Rebase(upstream = '%s^1' % last_mine, onto = revid)
self._CopyAndLinkFiles()
syncbuf.later2(self, _dorebase)
elif local_changes:
try:
self._ResetHard(revid)
self._CopyAndLinkFiles()
except GitError as e:
syncbuf.fail(self, e)
return
else:
syncbuf.later1(self, _doff)
def AddCopyFile(self, src, dest, absdest):
# dest should already be an absolute path, but src is project relative
# make src an absolute path
abssrc = os.path.join(self.worktree, src)
self.copyfiles.append(_CopyFile(src, dest, abssrc, absdest))
def AddLinkFile(self, src, dest, absdest):
# dest should already be an absolute path, but src is project relative
# make src an absolute path
abssrc = os.path.join(self.worktree, src)
self.linkfiles.append(_LinkFile(src, dest, abssrc, absdest))
def AddAnnotation(self, name, value, keep):
self.annotations.append(_Annotation(name, value, keep))
def DownloadPatchSet(self, change_id, patch_id):
"""Download a single patch set of a single change to FETCH_HEAD.
"""
remote = self.GetRemote(self.remote.name)
cmd = ['fetch', remote.name]
cmd.append('refs/changes/%2.2d/%d/%d' \
% (change_id % 100, change_id, patch_id))
if GitCommand(self, cmd, bare=True).Wait() != 0:
return None
return DownloadedChange(self,
self.GetRevisionId(),
change_id,
patch_id,
self.bare_git.rev_parse('FETCH_HEAD'))
## Branch Management ##
def StartBranch(self, name):
"""Create a new branch off the manifest's revision.
"""
head = self.work_git.GetHead()
if head == (R_HEADS + name):
return True
all_refs = self.bare_ref.all
if (R_HEADS + name) in all_refs:
return GitCommand(self,
['checkout', name, '--'],
capture_stdout = True,
capture_stderr = True).Wait() == 0
branch = self.GetBranch(name)
branch.remote = self.GetRemote(self.remote.name)
branch.merge = self.revisionExpr
revid = self.GetRevisionId(all_refs)
if head.startswith(R_HEADS):
try:
head = all_refs[head]
except KeyError:
head = None
if revid and head and revid == head:
ref = os.path.join(self.gitdir, R_HEADS + name)
try:
os.makedirs(os.path.dirname(ref))
except OSError:
pass
_lwrite(ref, '%s\n' % revid)
_lwrite(os.path.join(self.worktree, '.git', HEAD),
'ref: %s%s\n' % (R_HEADS, name))
branch.Save()
return True
if GitCommand(self,
['checkout', '-b', branch.name, revid],
capture_stdout = True,
capture_stderr = True).Wait() == 0:
branch.Save()
return True
return False
def CheckoutBranch(self, name):
"""Checkout a local topic branch.
Args:
name: The name of the branch to checkout.
Returns:
True if the checkout succeeded; False if it didn't; None if the branch
didn't exist.
"""
rev = R_HEADS + name
head = self.work_git.GetHead()
if head == rev:
# Already on the branch
#
return True
all_refs = self.bare_ref.all
try:
revid = all_refs[rev]
except KeyError:
# Branch does not exist in this project
#
return None
if head.startswith(R_HEADS):
try:
head = all_refs[head]
except KeyError:
head = None
if head == revid:
# Same revision; just update HEAD to point to the new
# target branch, but otherwise take no other action.
#
_lwrite(os.path.join(self.worktree, '.git', HEAD),
'ref: %s%s\n' % (R_HEADS, name))
return True
return GitCommand(self,
['checkout', name, '--'],
capture_stdout = True,
capture_stderr = True).Wait() == 0
def AbandonBranch(self, name):
"""Destroy a local topic branch.
Args:
name: The name of the branch to abandon.
Returns:
True if the abandon succeeded; False if it didn't; None if the branch
didn't exist.
"""
rev = R_HEADS + name
all_refs = self.bare_ref.all
if rev not in all_refs:
# Doesn't exist
return None
head = self.work_git.GetHead()
if head == rev:
# We can't destroy the branch while we are sitting
# on it. Switch to a detached HEAD.
#
head = all_refs[head]
revid = self.GetRevisionId(all_refs)
if head == revid:
_lwrite(os.path.join(self.worktree, '.git', HEAD),
'%s\n' % revid)
else:
self._Checkout(revid, quiet=True)
return GitCommand(self,
['branch', '-D', name],
capture_stdout = True,
capture_stderr = True).Wait() == 0
def PruneHeads(self):
"""Prune any topic branches already merged into upstream.
"""
cb = self.CurrentBranch
kill = []
left = self._allrefs
for name in left.keys():
if name.startswith(R_HEADS):
name = name[len(R_HEADS):]
if cb is None or name != cb:
kill.append(name)
rev = self.GetRevisionId(left)
if cb is not None \
and not self._revlist(HEAD + '...' + rev) \
and not self.IsDirty(consider_untracked = False):
self.work_git.DetachHead(HEAD)
kill.append(cb)
if kill:
old = self.bare_git.GetHead()
if old is None:
old = 'refs/heads/please_never_use_this_as_a_branch_name'
try:
self.bare_git.DetachHead(rev)
b = ['branch', '-d']
b.extend(kill)
b = GitCommand(self, b, bare=True,
capture_stdout=True,
capture_stderr=True)
b.Wait()
finally:
self.bare_git.SetHead(old)
left = self._allrefs
for branch in kill:
if (R_HEADS + branch) not in left:
self.CleanPublishedCache()
break
if cb and cb not in kill:
kill.append(cb)
kill.sort()
kept = []
for branch in kill:
if (R_HEADS + branch) in left:
branch = self.GetBranch(branch)
base = branch.LocalMerge
if not base:
base = rev
kept.append(ReviewableBranch(self, branch, base))
return kept
## Submodule Management ##
def GetRegisteredSubprojects(self):
result = []
def rec(subprojects):
if not subprojects:
return
result.extend(subprojects)
for p in subprojects:
rec(p.subprojects)
rec(self.subprojects)
return result
def _GetSubmodules(self):
# Unfortunately we cannot call `git submodule status --recursive` here
# because the working tree might not exist yet, and it cannot be used
# without a working tree in its current implementation.
def get_submodules(gitdir, rev):
# Parse .gitmodules for submodule sub_paths and sub_urls
sub_paths, sub_urls = parse_gitmodules(gitdir, rev)
if not sub_paths:
return []
# Run `git ls-tree` to read SHAs of submodule object, which happen to be
# revision of submodule repository
sub_revs = git_ls_tree(gitdir, rev, sub_paths)
submodules = []
for sub_path, sub_url in zip(sub_paths, sub_urls):
try:
sub_rev = sub_revs[sub_path]
except KeyError:
# Ignore non-exist submodules
continue
submodules.append((sub_rev, sub_path, sub_url))
return submodules
re_path = re.compile(r'^submodule\.([^.]+)\.path=(.*)$')
re_url = re.compile(r'^submodule\.([^.]+)\.url=(.*)$')
def parse_gitmodules(gitdir, rev):
cmd = ['cat-file', 'blob', '%s:.gitmodules' % rev]
try:
p = GitCommand(None, cmd, capture_stdout = True, capture_stderr = True,
bare = True, gitdir = gitdir)
except GitError:
return [], []
if p.Wait() != 0:
return [], []
gitmodules_lines = []
fd, temp_gitmodules_path = tempfile.mkstemp()
try:
os.write(fd, p.stdout)
os.close(fd)
cmd = ['config', '--file', temp_gitmodules_path, '--list']
p = GitCommand(None, cmd, capture_stdout = True, capture_stderr = True,
bare = True, gitdir = gitdir)
if p.Wait() != 0:
return [], []
gitmodules_lines = p.stdout.split('\n')
except GitError:
return [], []
finally:
os.remove(temp_gitmodules_path)
names = set()
paths = {}
urls = {}
for line in gitmodules_lines:
if not line:
continue
m = re_path.match(line)
if m:
names.add(m.group(1))
paths[m.group(1)] = m.group(2)
continue
m = re_url.match(line)
if m:
names.add(m.group(1))
urls[m.group(1)] = m.group(2)
continue
names = sorted(names)
return ([paths.get(name, '') for name in names],
[urls.get(name, '') for name in names])
def git_ls_tree(gitdir, rev, paths):
cmd = ['ls-tree', rev, '--']
cmd.extend(paths)
try:
p = GitCommand(None, cmd, capture_stdout = True, capture_stderr = True,
bare = True, gitdir = gitdir)
except GitError:
return []
if p.Wait() != 0:
return []
objects = {}
for line in p.stdout.split('\n'):
if not line.strip():
continue
object_rev, object_path = line.split()[2:4]
objects[object_path] = object_rev
return objects
try:
rev = self.GetRevisionId()
except GitError:
return []
return get_submodules(self.gitdir, rev)
def GetDerivedSubprojects(self):
result = []
if not self.Exists:
# If git repo does not exist yet, querying its submodules will
# mess up its states; so return here.
return result
for rev, path, url in self._GetSubmodules():
name = self.manifest.GetSubprojectName(self, path)
relpath, worktree, gitdir, objdir = \
self.manifest.GetSubprojectPaths(self, name, path)
project = self.manifest.paths.get(relpath)
if project:
result.extend(project.GetDerivedSubprojects())
continue
remote = RemoteSpec(self.remote.name,
url = url,
review = self.remote.review)
subproject = Project(manifest = self.manifest,
name = name,
remote = remote,
gitdir = gitdir,
objdir = objdir,
worktree = worktree,
relpath = relpath,
revisionExpr = self.revisionExpr,
revisionId = rev,
rebase = self.rebase,
groups = self.groups,
sync_c = self.sync_c,
sync_s = self.sync_s,
parent = self,
is_derived = True)
result.append(subproject)
result.extend(subproject.GetDerivedSubprojects())
return result
## Direct Git Commands ##
def _CheckForSha1(self):
try:
# if revision (sha or tag) is not present then following function
# throws an error.
self.bare_git.rev_parse('--verify', '%s^0' % self.revisionExpr)
return True
except GitError:
# There is no such persistent revision. We have to fetch it.
return False
def _FetchArchive(self, tarpath, cwd=None):
cmd = ['archive', '-v', '-o', tarpath]
cmd.append('--remote=%s' % self.remote.url)
cmd.append('--prefix=%s/' % self.relpath)
cmd.append(self.revisionExpr)
command = GitCommand(self, cmd, cwd=cwd,
capture_stdout=True,
capture_stderr=True)
if command.Wait() != 0:
raise GitError('git archive %s: %s' % (self.name, command.stderr))
def _RemoteFetch(self, name=None,
current_branch_only=False,
initial=False,
quiet=False,
alt_dir=None,
no_tags=False):
is_sha1 = False
tag_name = None
depth = None
# The depth should not be used when fetching to a mirror because
# it will result in a shallow repository that cannot be cloned or
# fetched from.
if not self.manifest.IsMirror:
if self.clone_depth:
depth = self.clone_depth
else:
depth = self.manifest.manifestProject.config.GetString('repo.depth')
if depth:
current_branch_only = True
if current_branch_only:
if ID_RE.match(self.revisionExpr) is not None:
is_sha1 = True
elif self.revisionExpr.startswith(R_TAGS):
# this is a tag and its sha1 value should never change
tag_name = self.revisionExpr[len(R_TAGS):]
if is_sha1 or tag_name is not None:
if self._CheckForSha1():
return True
if is_sha1 and (not self.upstream or ID_RE.match(self.upstream)):
current_branch_only = False
if not name:
name = self.remote.name
ssh_proxy = False
remote = self.GetRemote(name)
if remote.PreConnectFetch():
ssh_proxy = True
if initial:
if alt_dir and 'objects' == os.path.basename(alt_dir):
ref_dir = os.path.dirname(alt_dir)
packed_refs = os.path.join(self.gitdir, 'packed-refs')
remote = self.GetRemote(name)
all_refs = self.bare_ref.all
ids = set(all_refs.values())
tmp = set()
for r, ref_id in GitRefs(ref_dir).all.items():
if r not in all_refs:
if r.startswith(R_TAGS) or remote.WritesTo(r):
all_refs[r] = ref_id
ids.add(ref_id)
continue
if ref_id in ids:
continue
r = 'refs/_alt/%s' % ref_id
all_refs[r] = ref_id
ids.add(ref_id)
tmp.add(r)
tmp_packed = ''
old_packed = ''
for r in sorted(all_refs):
line = '%s %s\n' % (all_refs[r], r)
tmp_packed += line
if r not in tmp:
old_packed += line
_lwrite(packed_refs, tmp_packed)
else:
alt_dir = None
cmd = ['fetch']
# The --depth option only affects the initial fetch; after that we'll do
# full fetches of changes.
if depth and initial:
cmd.append('--depth=%s' % depth)
if quiet:
cmd.append('--quiet')
if not self.worktree:
cmd.append('--update-head-ok')
cmd.append(name)
# If using depth then we should not get all the tags since they may
# be outside of the depth.
if no_tags or depth:
cmd.append('--no-tags')
else:
cmd.append('--tags')
if not current_branch_only:
# Fetch whole repo
cmd.append(str((u'+refs/heads/*:') + remote.ToLocal('refs/heads/*')))
elif tag_name is not None:
cmd.append('tag')
cmd.append(tag_name)
else:
branch = self.revisionExpr
if is_sha1:
branch = self.upstream
if branch.startswith(R_HEADS):
branch = branch[len(R_HEADS):]
cmd.append(str((u'+refs/heads/%s:' % branch) + remote.ToLocal('refs/heads/%s' % branch)))
ok = False
for _i in range(2):
ret = GitCommand(self, cmd, bare=True, ssh_proxy=ssh_proxy).Wait()
if ret == 0:
ok = True
break
elif current_branch_only and is_sha1 and ret == 128:
# Exit code 128 means "couldn't find the ref you asked for"; if we're in sha1
# mode, we just tried sync'ing from the upstream field; it doesn't exist, thus
# abort the optimization attempt and do a full sync.
break
time.sleep(random.randint(30, 45))
if initial:
# Ensure that some refs exist. Otherwise, we probably aren't looking
# at a real git repository and may have a bad url.
if not self.bare_ref.all:
ok = False
if alt_dir:
if old_packed != '':
_lwrite(packed_refs, old_packed)
else:
os.remove(packed_refs)
self.bare_git.pack_refs('--all', '--prune')
if is_sha1 and current_branch_only and self.upstream:
# We just synced the upstream given branch; verify we
# got what we wanted, else trigger a second run of all
# refs.
if not self._CheckForSha1():
return self._RemoteFetch(name=name, current_branch_only=False,
initial=False, quiet=quiet, alt_dir=alt_dir)
return ok
def _ApplyCloneBundle(self, initial=False, quiet=False):
if initial and (self.manifest.manifestProject.config.GetString('repo.depth') or self.clone_depth):
return False
remote = self.GetRemote(self.remote.name)
bundle_url = remote.url + '/clone.bundle'
bundle_url = GitConfig.ForUser().UrlInsteadOf(bundle_url)
if GetSchemeFromUrl(bundle_url) not in (
'http', 'https', 'persistent-http', 'persistent-https'):
return False
bundle_dst = os.path.join(self.gitdir, 'clone.bundle')
bundle_tmp = os.path.join(self.gitdir, 'clone.bundle.tmp')
exist_dst = os.path.exists(bundle_dst)
exist_tmp = os.path.exists(bundle_tmp)
if not initial and not exist_dst and not exist_tmp:
return False
if not exist_dst:
exist_dst = self._FetchBundle(bundle_url, bundle_tmp, bundle_dst, quiet)
if not exist_dst:
return False
cmd = ['fetch']
if quiet:
cmd.append('--quiet')
if not self.worktree:
cmd.append('--update-head-ok')
cmd.append(bundle_dst)
for f in remote.fetch:
cmd.append(str(f))
cmd.append('refs/tags/*:refs/tags/*')
ok = GitCommand(self, cmd, bare=True).Wait() == 0
if os.path.exists(bundle_dst):
os.remove(bundle_dst)
if os.path.exists(bundle_tmp):
os.remove(bundle_tmp)
return ok
def _FetchBundle(self, srcUrl, tmpPath, dstPath, quiet):
if os.path.exists(dstPath):
os.remove(dstPath)
cmd = ['curl', '--fail', '--output', tmpPath, '--netrc', '--location']
if quiet:
cmd += ['--silent']
if os.path.exists(tmpPath):
size = os.stat(tmpPath).st_size
if size >= 1024:
cmd += ['--continue-at', '%d' % (size,)]
else:
os.remove(tmpPath)
if 'http_proxy' in os.environ and 'darwin' == sys.platform:
cmd += ['--proxy', os.environ['http_proxy']]
cookiefile = self._GetBundleCookieFile(srcUrl)
if cookiefile:
cmd += ['--cookie', cookiefile]
if srcUrl.startswith('persistent-'):
srcUrl = srcUrl[len('persistent-'):]
cmd += [srcUrl]
if IsTrace():
Trace('%s', ' '.join(cmd))
try:
proc = subprocess.Popen(cmd)
except OSError:
return False
curlret = proc.wait()
if curlret == 22:
# From curl man page:
# 22: HTTP page not retrieved. The requested url was not found or
# returned another error with the HTTP error code being 400 or above.
# This return code only appears if -f, --fail is used.
if not quiet:
print("Server does not provide clone.bundle; ignoring.",
file=sys.stderr)
return False
if os.path.exists(tmpPath):
if curlret == 0 and self._IsValidBundle(tmpPath):
os.rename(tmpPath, dstPath)
return True
else:
os.remove(tmpPath)
return False
else:
return False
def _IsValidBundle(self, path):
try:
with open(path) as f:
if f.read(16) == '# v2 git bundle\n':
return True
else:
print("Invalid clone.bundle file; ignoring.", file=sys.stderr)
return False
except OSError:
return False
def _GetBundleCookieFile(self, url):
if url.startswith('persistent-'):
try:
p = subprocess.Popen(
['git-remote-persistent-https', '-print_config', url],
stdin=subprocess.PIPE, stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
p.stdin.close() # Tell subprocess it's ok to close.
prefix = 'http.cookiefile='
cookiefile = None
for line in p.stdout:
line = line.strip()
if line.startswith(prefix):
cookiefile = line[len(prefix):]
break
if p.wait():
err_msg = p.stderr.read()
if ' -print_config' in err_msg:
pass # Persistent proxy doesn't support -print_config.
else:
print(err_msg, file=sys.stderr)
if cookiefile:
return cookiefile
except OSError as e:
if e.errno == errno.ENOENT:
pass # No persistent proxy.
raise
return GitConfig.ForUser().GetString('http.cookiefile')
def _Checkout(self, rev, quiet=False):
cmd = ['checkout']
if quiet:
cmd.append('-q')
cmd.append(rev)
cmd.append('--')
if GitCommand(self, cmd).Wait() != 0:
if self._allrefs:
raise GitError('%s checkout %s ' % (self.name, rev))
def _CherryPick(self, rev, quiet=False):
cmd = ['cherry-pick']
cmd.append(rev)
cmd.append('--')
if GitCommand(self, cmd).Wait() != 0:
if self._allrefs:
raise GitError('%s cherry-pick %s ' % (self.name, rev))
def _Revert(self, rev, quiet=False):
cmd = ['revert']
cmd.append('--no-edit')
cmd.append(rev)
cmd.append('--')
if GitCommand(self, cmd).Wait() != 0:
if self._allrefs:
raise GitError('%s revert %s ' % (self.name, rev))
def _ResetHard(self, rev, quiet=True):
cmd = ['reset', '--hard']
if quiet:
cmd.append('-q')
cmd.append(rev)
if GitCommand(self, cmd).Wait() != 0:
raise GitError('%s reset --hard %s ' % (self.name, rev))
def _Rebase(self, upstream, onto = None):
cmd = ['rebase']
if onto is not None:
cmd.extend(['--onto', onto])
cmd.append(upstream)
if GitCommand(self, cmd).Wait() != 0:
raise GitError('%s rebase %s ' % (self.name, upstream))
def _FastForward(self, head, ffonly=False):
cmd = ['merge', head]
if ffonly:
cmd.append("--ff-only")
if GitCommand(self, cmd).Wait() != 0:
raise GitError('%s merge %s ' % (self.name, head))
def _InitGitDir(self, mirror_git=None):
if not os.path.exists(self.gitdir):
# Initialize the bare repository, which contains all of the objects.
if not os.path.exists(self.objdir):
os.makedirs(self.objdir)
self.bare_objdir.init()
# If we have a separate directory to hold refs, initialize it as well.
if self.objdir != self.gitdir:
os.makedirs(self.gitdir)
self._ReferenceGitDir(self.objdir, self.gitdir, share_refs=False,
copy_all=True)
mp = self.manifest.manifestProject
ref_dir = mp.config.GetString('repo.reference') or ''
if ref_dir or mirror_git:
if not mirror_git:
mirror_git = os.path.join(ref_dir, self.name + '.git')
repo_git = os.path.join(ref_dir, '.repo', 'projects',
self.relpath + '.git')
if os.path.exists(mirror_git):
ref_dir = mirror_git
elif os.path.exists(repo_git):
ref_dir = repo_git
else:
ref_dir = None
if ref_dir:
_lwrite(os.path.join(self.gitdir, 'objects/info/alternates'),
os.path.join(ref_dir, 'objects') + '\n')
self._UpdateHooks()
m = self.manifest.manifestProject.config
for key in ['user.name', 'user.email']:
if m.Has(key, include_defaults = False):
self.config.SetString(key, m.GetString(key))
if self.manifest.IsMirror:
self.config.SetString('core.bare', 'true')
else:
self.config.SetString('core.bare', None)
def _UpdateHooks(self):
if os.path.exists(self.gitdir):
# Always recreate hooks since they can have been changed
# since the latest update.
hooks = self._gitdir_path('hooks')
try:
to_rm = os.listdir(hooks)
except OSError:
to_rm = []
for old_hook in to_rm:
os.remove(os.path.join(hooks, old_hook))
self._InitHooks()
def _InitHooks(self):
hooks = os.path.realpath(self._gitdir_path('hooks'))
if not os.path.exists(hooks):
os.makedirs(hooks)
for stock_hook in _ProjectHooks():
name = os.path.basename(stock_hook)
if name in ('commit-msg',) and not self.remote.review \
and not self is self.manifest.manifestProject:
# Don't install a Gerrit Code Review hook if this
# project does not appear to use it for reviews.
#
# Since the manifest project is one of those, but also
# managed through gerrit, it's excluded
continue
dst = os.path.join(hooks, name)
if os.path.islink(dst):
continue
if os.path.exists(dst):
if filecmp.cmp(stock_hook, dst, shallow=False):
os.remove(dst)
else:
_error("%s: Not replacing %s hook", self.relpath, name)
continue
try:
os.symlink(os.path.relpath(stock_hook, os.path.dirname(dst)), dst)
except OSError as e:
if e.errno == errno.EPERM:
raise GitError('filesystem must support symlinks')
else:
raise
def _InitRemote(self):
if self.remote.url:
remote = self.GetRemote(self.remote.name)
remote.url = self.remote.url
remote.review = self.remote.review
remote.projectname = self.name
if self.worktree:
remote.ResetFetch(mirror=False)
else:
remote.ResetFetch(mirror=True)
remote.Save()
def _InitMRef(self):
if self.manifest.branch:
self._InitAnyMRef(R_M + self.manifest.branch)
def _InitMirrorHead(self):
self._InitAnyMRef(HEAD)
def _InitAnyMRef(self, ref):
cur = self.bare_ref.symref(ref)
if self.revisionId:
if cur != '' or self.bare_ref.get(ref) != self.revisionId:
msg = 'manifest set to %s' % self.revisionId
dst = self.revisionId + '^0'
self.bare_git.UpdateRef(ref, dst, message = msg, detach = True)
else:
remote = self.GetRemote(self.remote.name)
dst = remote.ToLocal(self.revisionExpr)
if cur != dst:
msg = 'manifest set to %s' % self.revisionExpr
self.bare_git.symbolic_ref('-m', msg, ref, dst)
def _ReferenceGitDir(self, gitdir, dotgit, share_refs, copy_all):
"""Update |dotgit| to reference |gitdir|, using symlinks where possible.
Args:
gitdir: The bare git repository. Must already be initialized.
dotgit: The repository you would like to initialize.
share_refs: If true, |dotgit| will store its refs under |gitdir|.
Only one work tree can store refs under a given |gitdir|.
copy_all: If true, copy all remaining files from |gitdir| -> |dotgit|.
This saves you the effort of initializing |dotgit| yourself.
"""
# These objects can be shared between several working trees.
symlink_files = ['description', 'info']
symlink_dirs = ['hooks', 'objects', 'rr-cache', 'svn']
if share_refs:
# These objects can only be used by a single working tree.
symlink_files += ['config', 'packed-refs', 'shallow']
symlink_dirs += ['logs', 'refs']
to_symlink = symlink_files + symlink_dirs
to_copy = []
if copy_all:
to_copy = os.listdir(gitdir)
for name in set(to_copy).union(to_symlink):
try:
src = os.path.realpath(os.path.join(gitdir, name))
dst = os.path.realpath(os.path.join(dotgit, name))
if os.path.lexists(dst) and not os.path.islink(dst):
raise GitError('cannot overwrite a local work tree')
# If the source dir doesn't exist, create an empty dir.
if name in symlink_dirs and not os.path.lexists(src):
os.makedirs(src)
if name in to_symlink:
os.symlink(os.path.relpath(src, os.path.dirname(dst)), dst)
elif copy_all and not os.path.islink(dst):
if os.path.isdir(src):
shutil.copytree(src, dst)
elif os.path.isfile(src):
shutil.copy(src, dst)
except OSError as e:
if e.errno == errno.EPERM:
raise GitError('filesystem must support symlinks')
else:
raise
def _InitWorkTree(self):
dotgit = os.path.join(self.worktree, '.git')
if not os.path.exists(dotgit):
os.makedirs(dotgit)
self._ReferenceGitDir(self.gitdir, dotgit, share_refs=True,
copy_all=False)
_lwrite(os.path.join(dotgit, HEAD), '%s\n' % self.GetRevisionId())
cmd = ['read-tree', '--reset', '-u']
cmd.append('-v')
cmd.append(HEAD)
if GitCommand(self, cmd).Wait() != 0:
raise GitError("cannot initialize work tree")
self._CopyAndLinkFiles()
def _gitdir_path(self, path):
return os.path.realpath(os.path.join(self.gitdir, path))
def _revlist(self, *args, **kw):
a = []
a.extend(args)
a.append('--')
return self.work_git.rev_list(*a, **kw)
@property
def _allrefs(self):
return self.bare_ref.all
def _getLogs(self, rev1, rev2, oneline=False, color=True):
"""Get logs between two revisions of this project."""
comp = '..'
if rev1:
revs = [rev1]
if rev2:
revs.extend([comp, rev2])
cmd = ['log', ''.join(revs)]
out = DiffColoring(self.config)
if out.is_on and color:
cmd.append('--color')
if oneline:
cmd.append('--oneline')
try:
log = GitCommand(self, cmd, capture_stdout=True, capture_stderr=True)
if log.Wait() == 0:
return log.stdout
except GitError:
# worktree may not exist if groups changed for example. In that case,
# try in gitdir instead.
if not os.path.exists(self.worktree):
return self.bare_git.log(*cmd[1:])
else:
raise
return None
def getAddedAndRemovedLogs(self, toProject, oneline=False, color=True):
"""Get the list of logs from this revision to given revisionId"""
logs = {}
selfId = self.GetRevisionId(self._allrefs)
toId = toProject.GetRevisionId(toProject._allrefs)
logs['added'] = self._getLogs(selfId, toId, oneline=oneline, color=color)
logs['removed'] = self._getLogs(toId, selfId, oneline=oneline, color=color)
return logs
class _GitGetByExec(object):
def __init__(self, project, bare, gitdir):
self._project = project
self._bare = bare
self._gitdir = gitdir
def LsOthers(self):
p = GitCommand(self._project,
['ls-files',
'-z',
'--others',
'--exclude-standard'],
bare = False,
gitdir=self._gitdir,
capture_stdout = True,
capture_stderr = True)
if p.Wait() == 0:
out = p.stdout
if out:
return out[:-1].split('\0') # pylint: disable=W1401
# Backslash is not anomalous
return []
def DiffZ(self, name, *args):
cmd = [name]
cmd.append('-z')
cmd.extend(args)
p = GitCommand(self._project,
cmd,
gitdir=self._gitdir,
bare = False,
capture_stdout = True,
capture_stderr = True)
try:
out = p.process.stdout.read()
r = {}
if out:
out = iter(out[:-1].split('\0')) # pylint: disable=W1401
while out:
try:
info = out.next()
path = out.next()
except StopIteration:
break
class _Info(object):
def __init__(self, path, omode, nmode, oid, nid, state):
self.path = path
self.src_path = None
self.old_mode = omode
self.new_mode = nmode
self.old_id = oid
self.new_id = nid
if len(state) == 1:
self.status = state
self.level = None
else:
self.status = state[:1]
self.level = state[1:]
while self.level.startswith('0'):
self.level = self.level[1:]
info = info[1:].split(' ')
info = _Info(path, *info)
if info.status in ('R', 'C'):
info.src_path = info.path
info.path = out.next()
r[info.path] = info
return r
finally:
p.Wait()
def GetHead(self):
if self._bare:
path = os.path.join(self._project.gitdir, HEAD)
else:
path = os.path.join(self._project.worktree, '.git', HEAD)
try:
fd = open(path, 'rb')
except IOError as e:
raise NoManifestException(path, str(e))
try:
line = fd.read()
finally:
fd.close()
try:
line = line.decode()
except AttributeError:
pass
if line.startswith('ref: '):
return line[5:-1]
return line[:-1]
def SetHead(self, ref, message=None):
cmdv = []
if message is not None:
cmdv.extend(['-m', message])
cmdv.append(HEAD)
cmdv.append(ref)
self.symbolic_ref(*cmdv)
def DetachHead(self, new, message=None):
cmdv = ['--no-deref']
if message is not None:
cmdv.extend(['-m', message])
cmdv.append(HEAD)
cmdv.append(new)
self.update_ref(*cmdv)
def UpdateRef(self, name, new, old=None,
message=None,
detach=False):
cmdv = []
if message is not None:
cmdv.extend(['-m', message])
if detach:
cmdv.append('--no-deref')
cmdv.append(name)
cmdv.append(new)
if old is not None:
cmdv.append(old)
self.update_ref(*cmdv)
def DeleteRef(self, name, old=None):
if not old:
old = self.rev_parse(name)
self.update_ref('-d', name, old)
self._project.bare_ref.deleted(name)
def rev_list(self, *args, **kw):
if 'format' in kw:
cmdv = ['log', '--pretty=format:%s' % kw['format']]
else:
cmdv = ['rev-list']
cmdv.extend(args)
p = GitCommand(self._project,
cmdv,
bare = self._bare,
gitdir=self._gitdir,
capture_stdout = True,
capture_stderr = True)
r = []
for line in p.process.stdout:
if line[-1] == '\n':
line = line[:-1]
r.append(line)
if p.Wait() != 0:
raise GitError('%s rev-list %s: %s' % (
self._project.name,
str(args),
p.stderr))
return r
def __getattr__(self, name):
"""Allow arbitrary git commands using pythonic syntax.
This allows you to do things like:
git_obj.rev_parse('HEAD')
Since we don't have a 'rev_parse' method defined, the __getattr__ will
run. We'll replace the '_' with a '-' and try to run a git command.
Any other positional arguments will be passed to the git command, and the
following keyword arguments are supported:
config: An optional dict of git config options to be passed with '-c'.
Args:
name: The name of the git command to call. Any '_' characters will
be replaced with '-'.
Returns:
A callable object that will try to call git with the named command.
"""
name = name.replace('_', '-')
def runner(*args, **kwargs):
cmdv = []
config = kwargs.pop('config', None)
for k in kwargs:
raise TypeError('%s() got an unexpected keyword argument %r'
% (name, k))
if config is not None:
if not git_require((1, 7, 2)):
raise ValueError('cannot set config on command line for %s()'
% name)
for k, v in config.items():
cmdv.append('-c')
cmdv.append('%s=%s' % (k, v))
cmdv.append(name)
cmdv.extend(args)
p = GitCommand(self._project,
cmdv,
bare = self._bare,
gitdir=self._gitdir,
capture_stdout = True,
capture_stderr = True)
if p.Wait() != 0:
raise GitError('%s %s: %s' % (
self._project.name,
name,
p.stderr))
r = p.stdout
try:
r = r.decode('utf-8')
except AttributeError:
pass
if r.endswith('\n') and r.index('\n') == len(r) - 1:
return r[:-1]
return r
return runner
class _PriorSyncFailedError(Exception):
def __str__(self):
return 'prior sync failed; rebase still in progress'
class _DirtyError(Exception):
def __str__(self):
return 'contains uncommitted changes'
class _InfoMessage(object):
def __init__(self, project, text):
self.project = project
self.text = text
def Print(self, syncbuf):
syncbuf.out.info('%s/: %s', self.project.relpath, self.text)
syncbuf.out.nl()
class _Failure(object):
def __init__(self, project, why):
self.project = project
self.why = why
def Print(self, syncbuf):
syncbuf.out.fail('error: %s/: %s',
self.project.relpath,
str(self.why))
syncbuf.out.nl()
class _Later(object):
def __init__(self, project, action):
self.project = project
self.action = action
def Run(self, syncbuf):
out = syncbuf.out
out.project('project %s/', self.project.relpath)
out.nl()
try:
self.action()
out.nl()
return True
except GitError:
out.nl()
return False
class _SyncColoring(Coloring):
def __init__(self, config):
Coloring.__init__(self, config, 'reposync')
self.project = self.printer('header', attr = 'bold')
self.info = self.printer('info')
self.fail = self.printer('fail', fg='red')
class SyncBuffer(object):
def __init__(self, config, detach_head=False):
self._messages = []
self._failures = []
self._later_queue1 = []
self._later_queue2 = []
self.out = _SyncColoring(config)
self.out.redirect(sys.stderr)
self.detach_head = detach_head
self.clean = True
def info(self, project, fmt, *args):
self._messages.append(_InfoMessage(project, fmt % args))
def fail(self, project, err=None):
self._failures.append(_Failure(project, err))
self.clean = False
def later1(self, project, what):
self._later_queue1.append(_Later(project, what))
def later2(self, project, what):
self._later_queue2.append(_Later(project, what))
def Finish(self):
self._PrintMessages()
self._RunLater()
self._PrintMessages()
return self.clean
def _RunLater(self):
for q in ['_later_queue1', '_later_queue2']:
if not self._RunQueue(q):
return
def _RunQueue(self, queue):
for m in getattr(self, queue):
if not m.Run(self):
self.clean = False
return False
setattr(self, queue, [])
return True
def _PrintMessages(self):
for m in self._messages:
m.Print(self)
for m in self._failures:
m.Print(self)
self._messages = []
self._failures = []
class MetaProject(Project):
"""A special project housed under .repo.
"""
def __init__(self, manifest, name, gitdir, worktree):
Project.__init__(self,
manifest = manifest,
name = name,
gitdir = gitdir,
objdir = gitdir,
worktree = worktree,
remote = RemoteSpec('origin'),
relpath = '.repo/%s' % name,
revisionExpr = 'refs/heads/master',
revisionId = None,
groups = None)
def PreSync(self):
if self.Exists:
cb = self.CurrentBranch
if cb:
base = self.GetBranch(cb).merge
if base:
self.revisionExpr = base
self.revisionId = None
def MetaBranchSwitch(self, target):
""" Prepare MetaProject for manifest branch switch
"""
# detach and delete manifest branch, allowing a new
# branch to take over
syncbuf = SyncBuffer(self.config, detach_head = True)
self.Sync_LocalHalf(syncbuf)
syncbuf.Finish()
return GitCommand(self,
['update-ref', '-d', 'refs/heads/default'],
capture_stdout = True,
capture_stderr = True).Wait() == 0
@property
def LastFetch(self):
try:
fh = os.path.join(self.gitdir, 'FETCH_HEAD')
return os.path.getmtime(fh)
except OSError:
return 0
@property
def HasChanges(self):
"""Has the remote received new commits not yet checked out?
"""
if not self.remote or not self.revisionExpr:
return False
all_refs = self.bare_ref.all
revid = self.GetRevisionId(all_refs)
head = self.work_git.GetHead()
if head.startswith(R_HEADS):
try:
head = all_refs[head]
except KeyError:
head = None
if revid == head:
return False
elif self._revlist(not_rev(HEAD), revid):
return True
return False
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