| # Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """SCM-specific utility classes.""" |
| |
| import cStringIO |
| import glob |
| import logging |
| import os |
| import re |
| import sys |
| import tempfile |
| import time |
| from xml.etree import ElementTree |
| |
| import gclient_utils |
| import subprocess2 |
| |
| |
| def ValidateEmail(email): |
| return (re.match(r"^[a-zA-Z0-9._%-+]+@[a-zA-Z0-9._%-]+.[a-zA-Z]{2,6}$", email) |
| is not None) |
| |
| |
| def GetCasedPath(path): |
| """Elcheapos way to get the real path case on Windows.""" |
| if sys.platform.startswith('win') and os.path.exists(path): |
| # Reconstruct the path. |
| path = os.path.abspath(path) |
| paths = path.split('\\') |
| for i in range(len(paths)): |
| if i == 0: |
| # Skip drive letter. |
| continue |
| subpath = '\\'.join(paths[:i+1]) |
| prev = len('\\'.join(paths[:i])) |
| # glob.glob will return the cased path for the last item only. This is why |
| # we are calling it in a loop. Extract the data we want and put it back |
| # into the list. |
| paths[i] = glob.glob(subpath + '*')[0][prev+1:len(subpath)] |
| path = '\\'.join(paths) |
| return path |
| |
| |
| def GenFakeDiff(filename): |
| """Generates a fake diff from a file.""" |
| file_content = gclient_utils.FileRead(filename, 'rb').splitlines(True) |
| filename = filename.replace(os.sep, '/') |
| nb_lines = len(file_content) |
| # We need to use / since patch on unix will fail otherwise. |
| data = cStringIO.StringIO() |
| data.write("Index: %s\n" % filename) |
| data.write('=' * 67 + '\n') |
| # Note: Should we use /dev/null instead? |
| data.write("--- %s\n" % filename) |
| data.write("+++ %s\n" % filename) |
| data.write("@@ -0,0 +1,%d @@\n" % nb_lines) |
| # Prepend '+' to every lines. |
| for line in file_content: |
| data.write('+') |
| data.write(line) |
| result = data.getvalue() |
| data.close() |
| return result |
| |
| |
| def determine_scm(root): |
| """Similar to upload.py's version but much simpler. |
| |
| Returns 'svn', 'git' or None. |
| """ |
| if os.path.isdir(os.path.join(root, '.svn')): |
| return 'svn' |
| elif os.path.isdir(os.path.join(root, '.git')): |
| return 'git' |
| else: |
| try: |
| subprocess2.check_call( |
| ['git', 'rev-parse', '--show-cdup'], |
| stdout=subprocess2.VOID, |
| stderr=subprocess2.VOID, |
| cwd=root) |
| return 'git' |
| except (OSError, subprocess2.CalledProcessError): |
| return None |
| |
| |
| def only_int(val): |
| if val.isdigit(): |
| return int(val) |
| else: |
| return 0 |
| |
| |
| class GIT(object): |
| current_version = None |
| |
| @staticmethod |
| def ApplyEnvVars(kwargs): |
| env = kwargs.pop('env', None) or os.environ.copy() |
| # Don't prompt for passwords; just fail quickly and noisily. |
| # By default, git will use an interactive terminal prompt when a username/ |
| # password is needed. That shouldn't happen in the chromium workflow, |
| # and if it does, then gclient may hide the prompt in the midst of a flood |
| # of terminal spew. The only indication that something has gone wrong |
| # will be when gclient hangs unresponsively. Instead, we disable the |
| # password prompt and simply allow git to fail noisily. The error |
| # message produced by git will be copied to gclient's output. |
| env.setdefault('GIT_ASKPASS', 'true') |
| env.setdefault('SSH_ASKPASS', 'true') |
| # 'cat' is a magical git string that disables pagers on all platforms. |
| env.setdefault('GIT_PAGER', 'cat') |
| return env |
| |
| @staticmethod |
| def Capture(args, cwd, strip_out=True, **kwargs): |
| env = GIT.ApplyEnvVars(kwargs) |
| output = subprocess2.check_output( |
| ['git'] + args, |
| cwd=cwd, stderr=subprocess2.PIPE, env=env, **kwargs) |
| return output.strip() if strip_out else output |
| |
| @staticmethod |
| def CaptureStatus(files, cwd, upstream_branch): |
| """Returns git status. |
| |
| @files can be a string (one file) or a list of files. |
| |
| Returns an array of (status, file) tuples.""" |
| if upstream_branch is None: |
| upstream_branch = GIT.GetUpstreamBranch(cwd) |
| if upstream_branch is None: |
| raise gclient_utils.Error('Cannot determine upstream branch') |
| command = ['diff', '--name-status', '--no-renames', |
| '-r', '%s...' % upstream_branch] |
| if not files: |
| pass |
| elif isinstance(files, basestring): |
| command.append(files) |
| else: |
| command.extend(files) |
| status = GIT.Capture(command, cwd) |
| results = [] |
| if status: |
| for statusline in status.splitlines(): |
| # 3-way merges can cause the status can be 'MMM' instead of 'M'. This |
| # can happen when the user has 2 local branches and he diffs between |
| # these 2 branches instead diffing to upstream. |
| m = re.match('^(\w)+\t(.+)$', statusline) |
| if not m: |
| raise gclient_utils.Error( |
| 'status currently unsupported: %s' % statusline) |
| # Only grab the first letter. |
| results.append(('%s ' % m.group(1)[0], m.group(2))) |
| return results |
| |
| @staticmethod |
| def IsWorkTreeDirty(cwd): |
| return GIT.Capture(['status', '-s'], cwd=cwd) != '' |
| |
| @staticmethod |
| def GetEmail(cwd): |
| """Retrieves the user email address if known.""" |
| # We could want to look at the svn cred when it has a svn remote but it |
| # should be fine for now, users should simply configure their git settings. |
| try: |
| return GIT.Capture(['config', 'user.email'], cwd=cwd) |
| except subprocess2.CalledProcessError: |
| return '' |
| |
| @staticmethod |
| def ShortBranchName(branch): |
| """Converts a name like 'refs/heads/foo' to just 'foo'.""" |
| return branch.replace('refs/heads/', '') |
| |
| @staticmethod |
| def GetBranchRef(cwd): |
| """Returns the full branch reference, e.g. 'refs/heads/master'.""" |
| return GIT.Capture(['symbolic-ref', 'HEAD'], cwd=cwd) |
| |
| @staticmethod |
| def GetBranch(cwd): |
| """Returns the short branch name, e.g. 'master'.""" |
| return GIT.ShortBranchName(GIT.GetBranchRef(cwd)) |
| |
| @staticmethod |
| def IsGitSvn(cwd): |
| """Returns True if this repo looks like it's using git-svn.""" |
| # If you have any "svn-remote.*" config keys, we think you're using svn. |
| try: |
| GIT.Capture(['config', '--local', '--get-regexp', r'^svn-remote\.'], |
| cwd=cwd) |
| return True |
| except subprocess2.CalledProcessError: |
| return False |
| |
| @staticmethod |
| def MatchSvnGlob(url, base_url, glob_spec, allow_wildcards): |
| """Return the corresponding git ref if |base_url| together with |glob_spec| |
| matches the full |url|. |
| |
| If |allow_wildcards| is true, |glob_spec| can contain wildcards (see below). |
| """ |
| fetch_suburl, as_ref = glob_spec.split(':') |
| if allow_wildcards: |
| glob_match = re.match('(.+/)?(\*|{[^/]*})(/.+)?', fetch_suburl) |
| if glob_match: |
| # Parse specs like "branches/*/src:refs/remotes/svn/*" or |
| # "branches/{472,597,648}/src:refs/remotes/svn/*". |
| branch_re = re.escape(base_url) |
| if glob_match.group(1): |
| branch_re += '/' + re.escape(glob_match.group(1)) |
| wildcard = glob_match.group(2) |
| if wildcard == '*': |
| branch_re += '([^/]*)' |
| else: |
| # Escape and replace surrounding braces with parentheses and commas |
| # with pipe symbols. |
| wildcard = re.escape(wildcard) |
| wildcard = re.sub('^\\\\{', '(', wildcard) |
| wildcard = re.sub('\\\\,', '|', wildcard) |
| wildcard = re.sub('\\\\}$', ')', wildcard) |
| branch_re += wildcard |
| if glob_match.group(3): |
| branch_re += re.escape(glob_match.group(3)) |
| match = re.match(branch_re, url) |
| if match: |
| return re.sub('\*$', match.group(1), as_ref) |
| |
| # Parse specs like "trunk/src:refs/remotes/origin/trunk". |
| if fetch_suburl: |
| full_url = base_url + '/' + fetch_suburl |
| else: |
| full_url = base_url |
| if full_url == url: |
| return as_ref |
| return None |
| |
| @staticmethod |
| def GetSVNBranch(cwd): |
| """Returns the svn branch name if found.""" |
| # Try to figure out which remote branch we're based on. |
| # Strategy: |
| # 1) iterate through our branch history and find the svn URL. |
| # 2) find the svn-remote that fetches from the URL. |
| |
| # regexp matching the git-svn line that contains the URL. |
| git_svn_re = re.compile(r'^\s*git-svn-id: (\S+)@', re.MULTILINE) |
| |
| # We don't want to go through all of history, so read a line from the |
| # pipe at a time. |
| # The -100 is an arbitrary limit so we don't search forever. |
| cmd = ['git', 'log', '-100', '--pretty=medium'] |
| proc = subprocess2.Popen(cmd, cwd=cwd, stdout=subprocess2.PIPE) |
| url = None |
| for line in proc.stdout: |
| match = git_svn_re.match(line) |
| if match: |
| url = match.group(1) |
| proc.stdout.close() # Cut pipe. |
| break |
| |
| if url: |
| svn_remote_re = re.compile(r'^svn-remote\.([^.]+)\.url (.*)$') |
| remotes = GIT.Capture( |
| ['config', '--local', '--get-regexp', r'^svn-remote\..*\.url'], |
| cwd=cwd).splitlines() |
| for remote in remotes: |
| match = svn_remote_re.match(remote) |
| if match: |
| remote = match.group(1) |
| base_url = match.group(2) |
| try: |
| fetch_spec = GIT.Capture( |
| ['config', '--local', 'svn-remote.%s.fetch' % remote], |
| cwd=cwd) |
| branch = GIT.MatchSvnGlob(url, base_url, fetch_spec, False) |
| except subprocess2.CalledProcessError: |
| branch = None |
| if branch: |
| return branch |
| try: |
| branch_spec = GIT.Capture( |
| ['config', '--local', 'svn-remote.%s.branches' % remote], |
| cwd=cwd) |
| branch = GIT.MatchSvnGlob(url, base_url, branch_spec, True) |
| except subprocess2.CalledProcessError: |
| branch = None |
| if branch: |
| return branch |
| try: |
| tag_spec = GIT.Capture( |
| ['config', '--local', 'svn-remote.%s.tags' % remote], |
| cwd=cwd) |
| branch = GIT.MatchSvnGlob(url, base_url, tag_spec, True) |
| except subprocess2.CalledProcessError: |
| branch = None |
| if branch: |
| return branch |
| |
| @staticmethod |
| def FetchUpstreamTuple(cwd): |
| """Returns a tuple containg remote and remote ref, |
| e.g. 'origin', 'refs/heads/master' |
| Tries to be intelligent and understand git-svn. |
| """ |
| remote = '.' |
| branch = GIT.GetBranch(cwd) |
| try: |
| upstream_branch = GIT.Capture( |
| ['config', '--local', 'branch.%s.merge' % branch], cwd=cwd) |
| except subprocess2.CalledProcessError: |
| upstream_branch = None |
| if upstream_branch: |
| try: |
| remote = GIT.Capture( |
| ['config', '--local', 'branch.%s.remote' % branch], cwd=cwd) |
| except subprocess2.CalledProcessError: |
| pass |
| else: |
| try: |
| upstream_branch = GIT.Capture( |
| ['config', '--local', 'rietveld.upstream-branch'], cwd=cwd) |
| except subprocess2.CalledProcessError: |
| upstream_branch = None |
| if upstream_branch: |
| try: |
| remote = GIT.Capture( |
| ['config', '--local', 'rietveld.upstream-remote'], cwd=cwd) |
| except subprocess2.CalledProcessError: |
| pass |
| else: |
| # Fall back on trying a git-svn upstream branch. |
| if GIT.IsGitSvn(cwd): |
| upstream_branch = GIT.GetSVNBranch(cwd) |
| else: |
| # Else, try to guess the origin remote. |
| remote_branches = GIT.Capture(['branch', '-r'], cwd=cwd).split() |
| if 'origin/master' in remote_branches: |
| # Fall back on origin/master if it exits. |
| remote = 'origin' |
| upstream_branch = 'refs/heads/master' |
| elif 'origin/trunk' in remote_branches: |
| # Fall back on origin/trunk if it exists. Generally a shared |
| # git-svn clone |
| remote = 'origin' |
| upstream_branch = 'refs/heads/trunk' |
| else: |
| # Give up. |
| remote = None |
| upstream_branch = None |
| return remote, upstream_branch |
| |
| @staticmethod |
| def RefToRemoteRef(ref, remote=None): |
| """Convert a checkout ref to the equivalent remote ref. |
| |
| Returns: |
| A tuple of the remote ref's (common prefix, unique suffix), or None if it |
| doesn't appear to refer to a remote ref (e.g. it's a commit hash). |
| """ |
| # TODO(mmoss): This is just a brute-force mapping based of the expected git |
| # config. It's a bit better than the even more brute-force replace('heads', |
| # ...), but could still be smarter (like maybe actually using values gleaned |
| # from the git config). |
| m = re.match('^(refs/(remotes/)?)?branch-heads/', ref or '') |
| if m: |
| return ('refs/remotes/branch-heads/', ref.replace(m.group(0), '')) |
| if remote: |
| m = re.match('^((refs/)?remotes/)?%s/|(refs/)?heads/' % remote, ref or '') |
| if m: |
| return ('refs/remotes/%s/' % remote, ref.replace(m.group(0), '')) |
| return None |
| |
| @staticmethod |
| def GetUpstreamBranch(cwd): |
| """Gets the current branch's upstream branch.""" |
| remote, upstream_branch = GIT.FetchUpstreamTuple(cwd) |
| if remote != '.' and upstream_branch: |
| remote_ref = GIT.RefToRemoteRef(upstream_branch, remote) |
| if remote_ref: |
| upstream_branch = ''.join(remote_ref) |
| return upstream_branch |
| |
| @staticmethod |
| def GenerateDiff(cwd, branch=None, branch_head='HEAD', full_move=False, |
| files=None): |
| """Diffs against the upstream branch or optionally another branch. |
| |
| full_move means that move or copy operations should completely recreate the |
| files, usually in the prospect to apply the patch for a try job.""" |
| if not branch: |
| branch = GIT.GetUpstreamBranch(cwd) |
| command = ['diff', '-p', '--no-color', '--no-prefix', '--no-ext-diff', |
| branch + "..." + branch_head] |
| if full_move: |
| command.append('--no-renames') |
| else: |
| command.append('-C') |
| # TODO(maruel): --binary support. |
| if files: |
| command.append('--') |
| command.extend(files) |
| diff = GIT.Capture(command, cwd=cwd, strip_out=False).splitlines(True) |
| for i in range(len(diff)): |
| # In the case of added files, replace /dev/null with the path to the |
| # file being added. |
| if diff[i].startswith('--- /dev/null'): |
| diff[i] = '--- %s' % diff[i+1][4:] |
| return ''.join(diff) |
| |
| @staticmethod |
| def GetDifferentFiles(cwd, branch=None, branch_head='HEAD'): |
| """Returns the list of modified files between two branches.""" |
| if not branch: |
| branch = GIT.GetUpstreamBranch(cwd) |
| command = ['diff', '--name-only', branch + "..." + branch_head] |
| return GIT.Capture(command, cwd=cwd).splitlines(False) |
| |
| @staticmethod |
| def GetPatchName(cwd): |
| """Constructs a name for this patch.""" |
| short_sha = GIT.Capture(['rev-parse', '--short=4', 'HEAD'], cwd=cwd) |
| return "%s#%s" % (GIT.GetBranch(cwd), short_sha) |
| |
| @staticmethod |
| def GetCheckoutRoot(cwd): |
| """Returns the top level directory of a git checkout as an absolute path. |
| """ |
| root = GIT.Capture(['rev-parse', '--show-cdup'], cwd=cwd) |
| return os.path.abspath(os.path.join(cwd, root)) |
| |
| @staticmethod |
| def GetGitDir(cwd): |
| return os.path.abspath(GIT.Capture(['rev-parse', '--git-dir'], cwd=cwd)) |
| |
| @staticmethod |
| def IsInsideWorkTree(cwd): |
| try: |
| return GIT.Capture(['rev-parse', '--is-inside-work-tree'], cwd=cwd) |
| except (OSError, subprocess2.CalledProcessError): |
| return False |
| |
| @staticmethod |
| def IsDirectoryVersioned(cwd, relative_dir): |
| """Checks whether the given |relative_dir| is part of cwd's repo.""" |
| return bool(GIT.Capture(['ls-tree', 'HEAD', relative_dir], cwd=cwd)) |
| |
| @staticmethod |
| def CleanupDir(cwd, relative_dir): |
| """Cleans up untracked file inside |relative_dir|.""" |
| return bool(GIT.Capture(['clean', '-df', relative_dir], cwd=cwd)) |
| |
| @staticmethod |
| def GetGitSvnHeadRev(cwd): |
| """Gets the most recently pulled git-svn revision.""" |
| try: |
| output = GIT.Capture(['svn', 'info'], cwd=cwd) |
| match = re.search(r'^Revision: ([0-9]+)$', output, re.MULTILINE) |
| return int(match.group(1)) if match else None |
| except (subprocess2.CalledProcessError, ValueError): |
| return None |
| |
| @staticmethod |
| def ParseGitSvnSha1(output): |
| """Parses git-svn output for the first sha1.""" |
| match = re.search(r'[0-9a-fA-F]{40}', output) |
| return match.group(0) if match else None |
| |
| @staticmethod |
| def GetSha1ForSvnRev(cwd, rev): |
| """Returns a corresponding git sha1 for a SVN revision.""" |
| if not GIT.IsGitSvn(cwd=cwd): |
| return None |
| try: |
| output = GIT.Capture(['svn', 'find-rev', 'r' + str(rev)], cwd=cwd) |
| return GIT.ParseGitSvnSha1(output) |
| except subprocess2.CalledProcessError: |
| return None |
| |
| @staticmethod |
| def GetBlessedSha1ForSvnRev(cwd, rev): |
| """Returns a git commit hash from the master branch history that has |
| accurate .DEPS.git and git submodules. To understand why this is more |
| complicated than a simple call to `git svn find-rev`, refer to: |
| |
| http://www.chromium.org/developers/how-tos/git-repo |
| """ |
| git_svn_rev = GIT.GetSha1ForSvnRev(cwd, rev) |
| if not git_svn_rev: |
| return None |
| try: |
| output = GIT.Capture( |
| ['rev-list', '--ancestry-path', '--reverse', |
| '--grep', 'SVN changes up to revision [0-9]*', |
| '%s..refs/remotes/origin/master' % git_svn_rev], cwd=cwd) |
| if not output: |
| return None |
| sha1 = output.splitlines()[0] |
| if not sha1: |
| return None |
| output = GIT.Capture(['rev-list', '-n', '1', '%s^1' % sha1], cwd=cwd) |
| if git_svn_rev != output.rstrip(): |
| raise gclient_utils.Error(sha1) |
| return sha1 |
| except subprocess2.CalledProcessError: |
| return None |
| |
| @staticmethod |
| def IsValidRevision(cwd, rev, sha_only=False): |
| """Verifies the revision is a proper git revision. |
| |
| sha_only: Fail unless rev is a sha hash. |
| """ |
| # 'git rev-parse foo' where foo is *any* 40 character hex string will return |
| # the string and return code 0. So strip one character to force 'git |
| # rev-parse' to do a hash table look-up and returns 128 if the hash is not |
| # present. |
| lookup_rev = rev |
| if re.match(r'^[0-9a-fA-F]{40}$', rev): |
| lookup_rev = rev[:-1] |
| try: |
| sha = GIT.Capture(['rev-parse', lookup_rev], cwd=cwd).lower() |
| if lookup_rev != rev: |
| # Make sure we get the original 40 chars back. |
| return rev.lower() == sha |
| if sha_only: |
| return sha.startswith(rev.lower()) |
| return True |
| except subprocess2.CalledProcessError: |
| return False |
| |
| @classmethod |
| def AssertVersion(cls, min_version): |
| """Asserts git's version is at least min_version.""" |
| if cls.current_version is None: |
| current_version = cls.Capture(['--version'], '.') |
| matched = re.search(r'version ([0-9\.]+)', current_version) |
| cls.current_version = matched.group(1) |
| current_version_list = map(only_int, cls.current_version.split('.')) |
| for min_ver in map(int, min_version.split('.')): |
| ver = current_version_list.pop(0) |
| if ver < min_ver: |
| return (False, cls.current_version) |
| elif ver > min_ver: |
| return (True, cls.current_version) |
| return (True, cls.current_version) |
| |
| |
| class SVN(object): |
| current_version = None |
| |
| @staticmethod |
| def Capture(args, cwd, **kwargs): |
| """Always redirect stderr. |
| |
| Throws an exception if non-0 is returned. |
| """ |
| return subprocess2.check_output( |
| ['svn'] + args, stderr=subprocess2.PIPE, cwd=cwd, **kwargs) |
| |
| @staticmethod |
| def RunAndGetFileList(verbose, args, cwd, file_list, stdout=None): |
| """Runs svn checkout, update, or status, output to stdout. |
| |
| The first item in args must be either "checkout", "update", or "status". |
| |
| svn's stdout is parsed to collect a list of files checked out or updated. |
| These files are appended to file_list. svn's stdout is also printed to |
| sys.stdout as in Run. |
| |
| Args: |
| verbose: If True, uses verbose output |
| args: A sequence of command line parameters to be passed to svn. |
| cwd: The directory where svn is to be run. |
| |
| Raises: |
| Error: An error occurred while running the svn command. |
| """ |
| stdout = stdout or sys.stdout |
| if file_list is None: |
| # Even if our caller doesn't care about file_list, we use it internally. |
| file_list = [] |
| |
| # svn update and svn checkout use the same pattern: the first three columns |
| # are for file status, property status, and lock status. This is followed |
| # by two spaces, and then the path to the file. |
| update_pattern = '^... (.*)$' |
| |
| # The first three columns of svn status are the same as for svn update and |
| # svn checkout. The next three columns indicate addition-with-history, |
| # switch, and remote lock status. This is followed by one space, and then |
| # the path to the file. |
| status_pattern = '^...... (.*)$' |
| |
| # args[0] must be a supported command. This will blow up if it's something |
| # else, which is good. Note that the patterns are only effective when |
| # these commands are used in their ordinary forms, the patterns are invalid |
| # for "svn status --show-updates", for example. |
| pattern = { |
| 'checkout': update_pattern, |
| 'status': status_pattern, |
| 'update': update_pattern, |
| }[args[0]] |
| compiled_pattern = re.compile(pattern) |
| # Place an upper limit. |
| backoff_time = 5 |
| retries = 0 |
| while True: |
| retries += 1 |
| previous_list_len = len(file_list) |
| failure = [] |
| |
| def CaptureMatchingLines(line): |
| match = compiled_pattern.search(line) |
| if match: |
| file_list.append(match.group(1)) |
| if line.startswith('svn: '): |
| failure.append(line) |
| |
| try: |
| gclient_utils.CheckCallAndFilterAndHeader( |
| ['svn'] + args, |
| cwd=cwd, |
| always=verbose, |
| filter_fn=CaptureMatchingLines, |
| stdout=stdout) |
| except subprocess2.CalledProcessError: |
| def IsKnownFailure(): |
| for x in failure: |
| if (x.startswith('svn: OPTIONS of') or |
| x.startswith('svn: PROPFIND of') or |
| x.startswith('svn: REPORT of') or |
| x.startswith('svn: Unknown hostname') or |
| x.startswith('svn: Server sent unexpected return value') or |
| x.startswith('svn: Can\'t connect to host')): |
| return True |
| return False |
| |
| # Subversion client is really misbehaving with Google Code. |
| if args[0] == 'checkout': |
| # Ensure at least one file was checked out, otherwise *delete* the |
| # directory. |
| if len(file_list) == previous_list_len: |
| if not IsKnownFailure(): |
| # No known svn error was found, bail out. |
| raise |
| # No file were checked out, so make sure the directory is |
| # deleted in case it's messed up and try again. |
| # Warning: It's bad, it assumes args[2] is the directory |
| # argument. |
| if os.path.isdir(args[2]): |
| gclient_utils.rmtree(args[2]) |
| else: |
| # Progress was made, convert to update since an aborted checkout |
| # is now an update. |
| args = ['update'] + args[1:] |
| else: |
| # It was an update or export. |
| # We enforce that some progress has been made or a known failure. |
| if len(file_list) == previous_list_len and not IsKnownFailure(): |
| # No known svn error was found and no progress, bail out. |
| raise |
| if retries == 10: |
| raise |
| print "Sleeping %.1f seconds and retrying...." % backoff_time |
| time.sleep(backoff_time) |
| backoff_time *= 1.3 |
| continue |
| break |
| |
| @staticmethod |
| def CaptureRemoteInfo(url): |
| """Returns a dictionary from the svn info output for the given url. |
| |
| Throws an exception if svn info fails. |
| """ |
| assert isinstance(url, str) |
| return SVN._CaptureInfo([url], None) |
| |
| @staticmethod |
| def CaptureLocalInfo(files, cwd): |
| """Returns a dictionary from the svn info output for the given files. |
| |
| Throws an exception if svn info fails. |
| """ |
| assert isinstance(files, (list, tuple)) |
| return SVN._CaptureInfo(files, cwd) |
| |
| @staticmethod |
| def _CaptureInfo(files, cwd): |
| """Returns a dictionary from the svn info output for the given file. |
| |
| Throws an exception if svn info fails.""" |
| result = {} |
| info = ElementTree.XML(SVN.Capture(['info', '--xml'] + files, cwd)) |
| if info is None: |
| return result |
| entry = info.find('entry') |
| if entry is None: |
| return result |
| |
| # Use .text when the item is not optional. |
| result['Path'] = entry.attrib['path'] |
| rev = entry.attrib['revision'] |
| try: |
| result['Revision'] = int(rev) |
| except ValueError: |
| result['Revision'] = None |
| result['Node Kind'] = entry.attrib['kind'] |
| # Differs across versions. |
| if result['Node Kind'] == 'dir': |
| result['Node Kind'] = 'directory' |
| result['URL'] = entry.find('url').text |
| repository = entry.find('repository') |
| result['Repository Root'] = repository.find('root').text |
| result['UUID'] = repository.find('uuid') |
| wc_info = entry.find('wc-info') |
| if wc_info is not None: |
| result['Schedule'] = wc_info.find('schedule').text |
| result['Copied From URL'] = wc_info.find('copy-from-url') |
| result['Copied From Rev'] = wc_info.find('copy-from-rev') |
| else: |
| result['Schedule'] = None |
| result['Copied From URL'] = None |
| result['Copied From Rev'] = None |
| for key in result.keys(): |
| if isinstance(result[key], unicode): |
| # Unicode results interferes with the higher layers matching up things |
| # in the deps dictionary. |
| result[key] = result[key].encode() |
| # Automatic conversion of optional parameters. |
| result[key] = getattr(result[key], 'text', result[key]) |
| return result |
| |
| @staticmethod |
| def CaptureRevision(cwd): |
| """Get the base revision of a SVN repository. |
| |
| Returns: |
| Int base revision |
| """ |
| return SVN.CaptureLocalInfo([], cwd).get('Revision') |
| |
| @staticmethod |
| def CaptureStatus(files, cwd, no_ignore=False): |
| """Returns the svn 1.5 svn status emulated output. |
| |
| @files can be a string (one file) or a list of files. |
| |
| Returns an array of (status, file) tuples.""" |
| command = ["status", "--xml"] |
| if no_ignore: |
| command.append('--no-ignore') |
| if not files: |
| pass |
| elif isinstance(files, basestring): |
| command.append(files) |
| else: |
| command.extend(files) |
| |
| status_letter = { |
| None: ' ', |
| '': ' ', |
| 'added': 'A', |
| 'conflicted': 'C', |
| 'deleted': 'D', |
| 'external': 'X', |
| 'ignored': 'I', |
| 'incomplete': '!', |
| 'merged': 'G', |
| 'missing': '!', |
| 'modified': 'M', |
| 'none': ' ', |
| 'normal': ' ', |
| 'obstructed': '~', |
| 'replaced': 'R', |
| 'unversioned': '?', |
| } |
| dom = ElementTree.XML(SVN.Capture(command, cwd)) |
| results = [] |
| if dom is None: |
| return results |
| # /status/target/entry/(wc-status|commit|author|date) |
| for target in dom.findall('target'): |
| for entry in target.findall('entry'): |
| file_path = entry.attrib['path'] |
| wc_status = entry.find('wc-status') |
| # Emulate svn 1.5 status ouput... |
| statuses = [' '] * 7 |
| # Col 0 |
| xml_item_status = wc_status.attrib['item'] |
| if xml_item_status in status_letter: |
| statuses[0] = status_letter[xml_item_status] |
| else: |
| raise gclient_utils.Error( |
| 'Unknown item status "%s"; please implement me!' % |
| xml_item_status) |
| # Col 1 |
| xml_props_status = wc_status.attrib['props'] |
| if xml_props_status == 'modified': |
| statuses[1] = 'M' |
| elif xml_props_status == 'conflicted': |
| statuses[1] = 'C' |
| elif (not xml_props_status or xml_props_status == 'none' or |
| xml_props_status == 'normal'): |
| pass |
| else: |
| raise gclient_utils.Error( |
| 'Unknown props status "%s"; please implement me!' % |
| xml_props_status) |
| # Col 2 |
| if wc_status.attrib.get('wc-locked') == 'true': |
| statuses[2] = 'L' |
| # Col 3 |
| if wc_status.attrib.get('copied') == 'true': |
| statuses[3] = '+' |
| # Col 4 |
| if wc_status.attrib.get('switched') == 'true': |
| statuses[4] = 'S' |
| # TODO(maruel): Col 5 and 6 |
| item = (''.join(statuses), file_path) |
| results.append(item) |
| return results |
| |
| @staticmethod |
| def IsMoved(filename, cwd): |
| """Determine if a file has been added through svn mv""" |
| assert isinstance(filename, basestring) |
| return SVN.IsMovedInfo(SVN.CaptureLocalInfo([filename], cwd)) |
| |
| @staticmethod |
| def IsMovedInfo(info): |
| """Determine if a file has been added through svn mv""" |
| return (info.get('Copied From URL') and |
| info.get('Copied From Rev') and |
| info.get('Schedule') == 'add') |
| |
| @staticmethod |
| def GetFileProperty(filename, property_name, cwd): |
| """Returns the value of an SVN property for the given file. |
| |
| Args: |
| filename: The file to check |
| property_name: The name of the SVN property, e.g. "svn:mime-type" |
| |
| Returns: |
| The value of the property, which will be the empty string if the property |
| is not set on the file. If the file is not under version control, the |
| empty string is also returned. |
| """ |
| try: |
| return SVN.Capture(['propget', property_name, filename], cwd) |
| except subprocess2.CalledProcessError: |
| return '' |
| |
| @staticmethod |
| def GenerateDiff(filenames, cwd, full_move, revision): |
| """Returns a string containing the diff for the given file list. |
| |
| The files in the list should either be absolute paths or relative to the |
| given root. If no root directory is provided, the repository root will be |
| used. |
| The diff will always use relative paths. |
| """ |
| assert isinstance(filenames, (list, tuple)) |
| # If the user specified a custom diff command in their svn config file, |
| # then it'll be used when we do svn diff, which we don't want to happen |
| # since we want the unified diff. |
| if SVN.AssertVersion("1.7")[0]: |
| # On svn >= 1.7, the "--internal-diff" flag will solve this. |
| return SVN._GenerateDiffInternal(filenames, cwd, full_move, revision, |
| ["diff", "--internal-diff"], |
| ["diff", "--internal-diff"]) |
| else: |
| # On svn < 1.7, the "--internal-diff" flag doesn't exist. Using |
| # --diff-cmd=diff doesn't always work, since e.g. Windows cmd users may |
| # not have a "diff" executable in their path at all. So we use an empty |
| # temporary directory as the config directory, which bypasses any user |
| # settings for the diff-cmd. However, we don't pass this for the |
| # remote_safe_diff_command parameter, since when a new config-dir is |
| # specified for an svn diff against a remote URL, it triggers |
| # authentication prompts. In this case there isn't really a good |
| # alternative to svn 1.7's --internal-diff flag. |
| bogus_dir = tempfile.mkdtemp() |
| try: |
| return SVN._GenerateDiffInternal(filenames, cwd, full_move, revision, |
| ["diff", "--config-dir", bogus_dir], |
| ["diff"]) |
| finally: |
| gclient_utils.rmtree(bogus_dir) |
| |
| @staticmethod |
| def _GenerateDiffInternal(filenames, cwd, full_move, revision, diff_command, |
| remote_safe_diff_command): |
| root = os.path.normcase(os.path.join(cwd, '')) |
| def RelativePath(path, root): |
| """We must use relative paths.""" |
| if os.path.normcase(path).startswith(root): |
| return path[len(root):] |
| return path |
| # Cleanup filenames |
| filenames = [RelativePath(f, root) for f in filenames] |
| # Get information about the modified items (files and directories) |
| data = dict((f, SVN.CaptureLocalInfo([f], root)) for f in filenames) |
| diffs = [] |
| if full_move: |
| # Eliminate modified files inside moved/copied directory. |
| for (filename, info) in data.iteritems(): |
| if SVN.IsMovedInfo(info) and info.get("Node Kind") == "directory": |
| # Remove files inside the directory. |
| filenames = [f for f in filenames |
| if not f.startswith(filename + os.path.sep)] |
| for filename in data.keys(): |
| if not filename in filenames: |
| # Remove filtered out items. |
| del data[filename] |
| else: |
| metaheaders = [] |
| for (filename, info) in data.iteritems(): |
| if SVN.IsMovedInfo(info): |
| # for now, the most common case is a head copy, |
| # so let's just encode that as a straight up cp. |
| srcurl = info.get('Copied From URL') |
| file_root = info.get('Repository Root') |
| rev = int(info.get('Copied From Rev')) |
| assert srcurl.startswith(file_root) |
| src = srcurl[len(file_root)+1:] |
| try: |
| srcinfo = SVN.CaptureRemoteInfo(srcurl) |
| except subprocess2.CalledProcessError, e: |
| if not 'Not a valid URL' in e.stderr: |
| raise |
| # Assume the file was deleted. No idea how to figure out at which |
| # revision the file was deleted. |
| srcinfo = {'Revision': rev} |
| if (srcinfo.get('Revision') != rev and |
| SVN.Capture(remote_safe_diff_command + ['-r', '%d:head' % rev, |
| srcurl], cwd)): |
| metaheaders.append("#$ svn cp -r %d %s %s " |
| "### WARNING: note non-trunk copy\n" % |
| (rev, src, filename)) |
| else: |
| metaheaders.append("#$ cp %s %s\n" % (src, |
| filename)) |
| if metaheaders: |
| diffs.append("### BEGIN SVN COPY METADATA\n") |
| diffs.extend(metaheaders) |
| diffs.append("### END SVN COPY METADATA\n") |
| # Now ready to do the actual diff. |
| for filename in sorted(data): |
| diffs.append(SVN._DiffItemInternal( |
| filename, cwd, data[filename], diff_command, full_move, revision)) |
| # Use StringIO since it can be messy when diffing a directory move with |
| # full_move=True. |
| buf = cStringIO.StringIO() |
| for d in filter(None, diffs): |
| buf.write(d) |
| result = buf.getvalue() |
| buf.close() |
| return result |
| |
| @staticmethod |
| def _DiffItemInternal(filename, cwd, info, diff_command, full_move, revision): |
| """Grabs the diff data.""" |
| command = diff_command + [filename] |
| if revision: |
| command.extend(['--revision', revision]) |
| data = None |
| if SVN.IsMovedInfo(info): |
| if full_move: |
| if info.get("Node Kind") == "directory": |
| # Things become tricky here. It's a directory copy/move. We need to |
| # diff all the files inside it. |
| # This will put a lot of pressure on the heap. This is why StringIO |
| # is used and converted back into a string at the end. The reason to |
| # return a string instead of a StringIO is that StringIO.write() |
| # doesn't accept a StringIO object. *sigh*. |
| for (dirpath, dirnames, filenames) in os.walk(filename): |
| # Cleanup all files starting with a '.'. |
| for d in dirnames: |
| if d.startswith('.'): |
| dirnames.remove(d) |
| for f in filenames: |
| if f.startswith('.'): |
| filenames.remove(f) |
| for f in filenames: |
| if data is None: |
| data = cStringIO.StringIO() |
| data.write(GenFakeDiff(os.path.join(dirpath, f))) |
| if data: |
| tmp = data.getvalue() |
| data.close() |
| data = tmp |
| else: |
| data = GenFakeDiff(filename) |
| else: |
| if info.get("Node Kind") != "directory": |
| # svn diff on a mv/cp'd file outputs nothing if there was no change. |
| data = SVN.Capture(command, cwd) |
| if not data: |
| # We put in an empty Index entry so upload.py knows about them. |
| data = "Index: %s\n" % filename.replace(os.sep, '/') |
| # Otherwise silently ignore directories. |
| else: |
| if info.get("Node Kind") != "directory": |
| # Normal simple case. |
| try: |
| data = SVN.Capture(command, cwd) |
| except subprocess2.CalledProcessError: |
| if revision: |
| data = GenFakeDiff(filename) |
| else: |
| raise |
| # Otherwise silently ignore directories. |
| return data |
| |
| @staticmethod |
| def GetEmail(cwd): |
| """Retrieves the svn account which we assume is an email address.""" |
| try: |
| infos = SVN.CaptureLocalInfo([], cwd) |
| except subprocess2.CalledProcessError: |
| return None |
| |
| # Should check for uuid but it is incorrectly saved for https creds. |
| root = infos['Repository Root'] |
| realm = root.rsplit('/', 1)[0] |
| uuid = infos['UUID'] |
| if root.startswith('https') or not uuid: |
| regexp = re.compile(r'<%s:\d+>.*' % realm) |
| else: |
| regexp = re.compile(r'<%s:\d+> %s' % (realm, uuid)) |
| if regexp is None: |
| return None |
| if sys.platform.startswith('win'): |
| if not 'APPDATA' in os.environ: |
| return None |
| auth_dir = os.path.join(os.environ['APPDATA'], 'Subversion', 'auth', |
| 'svn.simple') |
| else: |
| if not 'HOME' in os.environ: |
| return None |
| auth_dir = os.path.join(os.environ['HOME'], '.subversion', 'auth', |
| 'svn.simple') |
| for credfile in os.listdir(auth_dir): |
| cred_info = SVN.ReadSimpleAuth(os.path.join(auth_dir, credfile)) |
| if regexp.match(cred_info.get('svn:realmstring')): |
| return cred_info.get('username') |
| |
| @staticmethod |
| def ReadSimpleAuth(filename): |
| f = open(filename, 'r') |
| values = {} |
| def ReadOneItem(item_type): |
| m = re.match(r'%s (\d+)' % item_type, f.readline()) |
| if not m: |
| return None |
| data = f.read(int(m.group(1))) |
| if f.read(1) != '\n': |
| return None |
| return data |
| |
| while True: |
| key = ReadOneItem('K') |
| if not key: |
| break |
| value = ReadOneItem('V') |
| if not value: |
| break |
| values[key] = value |
| return values |
| |
| @staticmethod |
| def GetCheckoutRoot(cwd): |
| """Returns the top level directory of the current repository. |
| |
| The directory is returned as an absolute path. |
| """ |
| cwd = os.path.abspath(cwd) |
| try: |
| info = SVN.CaptureLocalInfo([], cwd) |
| cur_dir_repo_root = info['Repository Root'] |
| url = info['URL'] |
| except subprocess2.CalledProcessError: |
| return None |
| while True: |
| parent = os.path.dirname(cwd) |
| try: |
| info = SVN.CaptureLocalInfo([], parent) |
| if (info['Repository Root'] != cur_dir_repo_root or |
| info['URL'] != os.path.dirname(url)): |
| break |
| url = info['URL'] |
| except subprocess2.CalledProcessError: |
| break |
| cwd = parent |
| return GetCasedPath(cwd) |
| |
| @staticmethod |
| def IsValidRevision(url): |
| """Verifies the revision looks like an SVN revision.""" |
| try: |
| SVN.Capture(['info', url], cwd=None) |
| return True |
| except subprocess2.CalledProcessError: |
| return False |
| |
| @classmethod |
| def AssertVersion(cls, min_version): |
| """Asserts svn's version is at least min_version.""" |
| if cls.current_version is None: |
| cls.current_version = cls.Capture(['--version', '--quiet'], None) |
| current_version_list = map(only_int, cls.current_version.split('.')) |
| for min_ver in map(int, min_version.split('.')): |
| ver = current_version_list.pop(0) |
| if ver < min_ver: |
| return (False, cls.current_version) |
| elif ver > min_ver: |
| return (True, cls.current_version) |
| return (True, cls.current_version) |
| |
| @staticmethod |
| def Revert(cwd, callback=None, ignore_externals=False, no_ignore=False): |
| """Reverts all svn modifications in cwd, including properties. |
| |
| Deletes any modified files or directory. |
| |
| A "svn update --revision BASE" call is required after to revive deleted |
| files. |
| """ |
| for file_status in SVN.CaptureStatus(None, cwd, no_ignore=no_ignore): |
| file_path = os.path.join(cwd, file_status[1]) |
| if (ignore_externals and |
| file_status[0][0] == 'X' and |
| file_status[0][1:].isspace()): |
| # Ignore externals. |
| logging.info('Ignoring external %s' % file_status[1]) |
| continue |
| |
| # This is the case where '! L .' is returned by 'svn status'. Just |
| # strip off the '/.'. |
| if file_path.endswith(os.path.sep + '.'): |
| file_path = file_path[:-2] |
| |
| if callback: |
| callback(file_status) |
| |
| if os.path.exists(file_path): |
| # svn revert is really stupid. It fails on inconsistent line-endings, |
| # on switched directories, etc. So take no chance and delete everything! |
| # In theory, it wouldn't be necessary for property-only change but then |
| # it'd have to look for switched directories, etc so it's not worth |
| # optimizing this use case. |
| if os.path.isfile(file_path) or os.path.islink(file_path): |
| logging.info('os.remove(%s)' % file_path) |
| os.remove(file_path) |
| elif os.path.isdir(file_path): |
| logging.info('rmtree(%s)' % file_path) |
| gclient_utils.rmtree(file_path) |
| else: |
| logging.critical( |
| ('No idea what is %s.\nYou just found a bug in gclient' |
| ', please ping maruel@chromium.org ASAP!') % file_path) |
| |
| if (file_status[0][0] in ('D', 'A', '!') or |
| not file_status[0][1:].isspace()): |
| # Added, deleted file requires manual intervention and require calling |
| # revert, like for properties. |
| if not os.path.isdir(cwd): |
| # '.' was deleted. It's not worth continuing. |
| return |
| try: |
| SVN.Capture(['revert', file_status[1]], cwd=cwd) |
| except subprocess2.CalledProcessError: |
| if not os.path.exists(file_path): |
| continue |
| raise |
