| #!/usr/bin/env python |
| # ex:ts=4:sw=4:sts=4:et |
| # -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- |
| # |
| # Copyright 2011 Intel Corporation |
| # Authored-by: Yu Ke <ke.yu@intel.com> |
| # Paul Eggleton <paul.eggleton@intel.com> |
| # Richard Purdie <richard.purdie@intel.com> |
| # |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License version 2 as |
| # published by the Free Software Foundation. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License along |
| # with this program; if not, write to the Free Software Foundation, Inc., |
| # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| |
| import fnmatch |
| import os, sys |
| import optparse |
| import logging |
| import subprocess |
| import tempfile |
| import ConfigParser |
| import re |
| from collections import OrderedDict |
| from string import Template |
| |
| __version__ = "0.2.1" |
| |
| def logger_create(): |
| logger = logging.getLogger("") |
| loggerhandler = logging.StreamHandler() |
| loggerhandler.setFormatter(logging.Formatter("[%(asctime)s] %(message)s","%H:%M:%S")) |
| logger.addHandler(loggerhandler) |
| logger.setLevel(logging.INFO) |
| return logger |
| |
| logger = logger_create() |
| |
| def get_current_branch(repodir=None): |
| try: |
| if not os.path.exists(os.path.join(repodir if repodir else '', ".git")): |
| # Repo not created yet (i.e. during init) so just assume master |
| return "master" |
| branchname = runcmd("git symbolic-ref HEAD 2>/dev/null", repodir).strip() |
| if branchname.startswith("refs/heads/"): |
| branchname = branchname[11:] |
| return branchname |
| except subprocess.CalledProcessError: |
| return "" |
| |
| class Configuration(object): |
| """ |
| Manages the configuration |
| |
| For an example config file, see combo-layer.conf.example |
| |
| """ |
| def __init__(self, options): |
| for key, val in options.__dict__.items(): |
| setattr(self, key, val) |
| |
| def readsection(parser, section, repo): |
| for (name, value) in parser.items(section): |
| if value.startswith("@"): |
| self.repos[repo][name] = eval(value.strip("@")) |
| else: |
| # Apply special type transformations for some properties. |
| # Type matches the RawConfigParser.get*() methods. |
| types = {'signoff': 'boolean'} |
| if name in types: |
| value = getattr(parser, 'get' + types[name])(section, name) |
| self.repos[repo][name] = value |
| |
| def readglobalsection(parser, section): |
| for (name, value) in parser.items(section): |
| if name == "commit_msg": |
| self.commit_msg_template = value |
| |
| logger.debug("Loading config file %s" % self.conffile) |
| self.parser = ConfigParser.ConfigParser() |
| with open(self.conffile) as f: |
| self.parser.readfp(f) |
| |
| # initialize default values |
| self.commit_msg_template = "Automatic commit to update last_revision" |
| |
| self.repos = {} |
| for repo in self.parser.sections(): |
| if repo == "combo-layer-settings": |
| # special handling for global settings |
| readglobalsection(self.parser, repo) |
| else: |
| self.repos[repo] = {} |
| readsection(self.parser, repo, repo) |
| |
| # Load local configuration, if available |
| self.localconffile = None |
| self.localparser = None |
| self.combobranch = None |
| if self.conffile.endswith('.conf'): |
| lcfile = self.conffile.replace('.conf', '-local.conf') |
| if os.path.exists(lcfile): |
| # Read combo layer branch |
| self.combobranch = get_current_branch() |
| logger.debug("Combo layer branch is %s" % self.combobranch) |
| |
| self.localconffile = lcfile |
| logger.debug("Loading local config file %s" % self.localconffile) |
| self.localparser = ConfigParser.ConfigParser() |
| with open(self.localconffile) as f: |
| self.localparser.readfp(f) |
| |
| for section in self.localparser.sections(): |
| if '|' in section: |
| sectionvals = section.split('|') |
| repo = sectionvals[0] |
| if sectionvals[1] != self.combobranch: |
| continue |
| else: |
| repo = section |
| if repo in self.repos: |
| readsection(self.localparser, section, repo) |
| |
| def update(self, repo, option, value, initmode=False): |
| # If the main config has the option already, that is what we |
| # are expected to modify. |
| if self.localparser and not self.parser.has_option(repo, option): |
| parser = self.localparser |
| section = "%s|%s" % (repo, self.combobranch) |
| conffile = self.localconffile |
| if initmode and not parser.has_section(section): |
| parser.add_section(section) |
| else: |
| parser = self.parser |
| section = repo |
| conffile = self.conffile |
| parser.set(section, option, value) |
| with open(conffile, "w") as f: |
| parser.write(f) |
| self.repos[repo][option] = value |
| |
| def sanity_check(self, initmode=False): |
| required_options=["src_uri", "local_repo_dir", "dest_dir", "last_revision"] |
| if initmode: |
| required_options.remove("last_revision") |
| msg = "" |
| missing_options = [] |
| for name in self.repos: |
| for option in required_options: |
| if option not in self.repos[name]: |
| msg = "%s\nOption %s is not defined for component %s" %(msg, option, name) |
| missing_options.append(option) |
| # Sanitize dest_dir so that we do not have to deal with edge cases |
| # (unset, empty string, double slashes) in the rest of the code. |
| # It not being set will still be flagged as error because it is |
| # listed as required option above; that could be changed now. |
| dest_dir = os.path.normpath(self.repos[name].get("dest_dir", ".")) |
| self.repos[name]["dest_dir"] = "." if not dest_dir else dest_dir |
| if msg != "": |
| logger.error("configuration file %s has the following error: %s" % (self.conffile,msg)) |
| if self.localconffile and 'last_revision' in missing_options: |
| logger.error("local configuration file %s may be missing configuration for combo branch %s" % (self.localconffile, self.combobranch)) |
| sys.exit(1) |
| |
| # filterdiff is required by action_splitpatch, so check its availability |
| if subprocess.call("which filterdiff > /dev/null 2>&1", shell=True) != 0: |
| logger.error("ERROR: patchutils package is missing, please install it (e.g. # apt-get install patchutils)") |
| sys.exit(1) |
| |
| def runcmd(cmd,destdir=None,printerr=True,out=None): |
| """ |
| execute command, raise CalledProcessError if fail |
| return output if succeed |
| """ |
| logger.debug("run cmd '%s' in %s" % (cmd, os.getcwd() if destdir is None else destdir)) |
| if not out: |
| out = os.tmpfile() |
| err = out |
| else: |
| err = os.tmpfile() |
| try: |
| subprocess.check_call(cmd, stdout=out, stderr=err, cwd=destdir, shell=isinstance(cmd, str)) |
| except subprocess.CalledProcessError,e: |
| err.seek(0) |
| if printerr: |
| logger.error("%s" % err.read()) |
| raise e |
| |
| err.seek(0) |
| output = err.read() |
| logger.debug("output: %s" % output ) |
| return output |
| |
| def action_init(conf, args): |
| """ |
| Clone component repositories |
| Check git is initialised; if not, copy initial data from component repos |
| """ |
| for name in conf.repos: |
| ldir = conf.repos[name]['local_repo_dir'] |
| if not os.path.exists(ldir): |
| logger.info("cloning %s to %s" %(conf.repos[name]['src_uri'], ldir)) |
| subprocess.check_call("git clone %s %s" % (conf.repos[name]['src_uri'], ldir), shell=True) |
| if not os.path.exists(".git"): |
| runcmd("git init") |
| if conf.history: |
| # Need a common ref for all trees. |
| runcmd('git commit -m "initial empty commit" --allow-empty') |
| startrev = runcmd('git rev-parse master').strip() |
| |
| for name in conf.repos: |
| repo = conf.repos[name] |
| ldir = repo['local_repo_dir'] |
| branch = repo.get('branch', "master") |
| lastrev = repo.get('last_revision', None) |
| if lastrev and lastrev != "HEAD": |
| initialrev = lastrev |
| if branch: |
| if not check_rev_branch(name, ldir, lastrev, branch): |
| sys.exit(1) |
| logger.info("Copying data from %s at specified revision %s..." % (name, lastrev)) |
| else: |
| lastrev = None |
| initialrev = branch |
| logger.info("Copying data from %s..." % name) |
| # Sanity check initialrev and turn it into hash (required for copying history, |
| # because resolving a name ref only works in the component repo). |
| rev = runcmd('git rev-parse %s' % initialrev, ldir).strip() |
| if rev != initialrev: |
| try: |
| refs = runcmd('git show-ref -s %s' % initialrev, ldir).split('\n') |
| if len(set(refs)) > 1: |
| # Happens for example when configured to track |
| # "master" and there is a refs/heads/master. The |
| # traditional behavior from "git archive" (preserved |
| # here) it to choose the first one. This might not be |
| # intended, so at least warn about it. |
| logger.warn("%s: initial revision '%s' not unique, picking result of rev-parse = %s" % |
| (name, initialrev, refs[0])) |
| initialrev = rev |
| except: |
| # show-ref fails for hashes. Skip the sanity warning in that case. |
| pass |
| initialrev = rev |
| dest_dir = repo['dest_dir'] |
| if dest_dir != ".": |
| extract_dir = os.path.join(os.getcwd(), dest_dir) |
| if not os.path.exists(extract_dir): |
| os.makedirs(extract_dir) |
| else: |
| extract_dir = os.getcwd() |
| file_filter = repo.get('file_filter', "") |
| exclude_patterns = repo.get('file_exclude', '').split() |
| def copy_selected_files(initialrev, extract_dir, file_filter, exclude_patterns, ldir, |
| subdir=""): |
| # When working inside a filtered branch which had the |
| # files already moved, we need to prepend the |
| # subdirectory to all filters, otherwise they would |
| # not match. |
| if subdir == '.': |
| subdir = '' |
| elif subdir: |
| subdir = os.path.normpath(subdir) |
| file_filter = ' '.join([subdir + '/' + x for x in file_filter.split()]) |
| exclude_patterns = [subdir + '/' + x for x in exclude_patterns] |
| # To handle both cases, we cd into the target |
| # directory and optionally tell tar to strip the path |
| # prefix when the files were already moved. |
| subdir_components = len(subdir.split(os.path.sep)) if subdir else 0 |
| strip=('--strip-components=%d' % subdir_components) if subdir else '' |
| # TODO: file_filter wild cards do not work (and haven't worked before either), because |
| # a) GNU tar requires a --wildcards parameter before turning on wild card matching. |
| # b) The semantic is not as intendend (src/*.c also matches src/foo/bar.c, |
| # in contrast to the other use of file_filter as parameter of "git archive" |
| # where it only matches .c files directly in src). |
| files = runcmd("git archive %s %s | tar -x -v %s -C %s %s" % |
| (initialrev, subdir, |
| strip, extract_dir, file_filter), |
| ldir) |
| if exclude_patterns: |
| # Implement file removal by letting tar create the |
| # file and then deleting it in the file system |
| # again. Uses the list of files created by tar (easier |
| # than walking the tree). |
| for file in files.split('\n'): |
| for pattern in exclude_patterns: |
| if fnmatch.fnmatch(file, pattern): |
| os.unlink(os.path.join(*([extract_dir] + ['..'] * subdir_components + [file]))) |
| break |
| |
| if not conf.history: |
| copy_selected_files(initialrev, extract_dir, file_filter, exclude_patterns, ldir) |
| else: |
| # First fetch remote history into local repository. |
| # We need a ref for that, so ensure that there is one. |
| refname = "combo-layer-init-%s" % name |
| runcmd("git branch -f %s %s" % (refname, initialrev), ldir) |
| runcmd("git fetch %s %s" % (ldir, refname)) |
| runcmd("git branch -D %s" % refname, ldir) |
| # Make that the head revision. |
| runcmd("git checkout -b %s %s" % (name, initialrev)) |
| # Optional: cut the history by replacing the given |
| # start point(s) with commits providing the same |
| # content (aka tree), but with commit information that |
| # makes it clear that this is an artifically created |
| # commit and nothing the original authors had anything |
| # to do with. |
| since_rev = repo.get('since_revision', '') |
| if since_rev: |
| committer = runcmd('git var GIT_AUTHOR_IDENT').strip() |
| # Same time stamp, no name. |
| author = re.sub('.* (\d+ [+-]\d+)', r'unknown <unknown> \1', committer) |
| logger.info('author %s' % author) |
| for rev in since_rev.split(): |
| # Resolve in component repo... |
| rev = runcmd('git log --oneline --no-abbrev-commit -n1 %s' % rev, ldir).split()[0] |
| # ... and then get the tree in current |
| # one. The commit should be in both repos with |
| # the same tree, but better check here. |
| tree = runcmd('git show -s --pretty=format:%%T %s' % rev).strip() |
| with tempfile.NamedTemporaryFile() as editor: |
| editor.write('''cat >$1 <<EOF |
| tree %s |
| author %s |
| committer %s |
| |
| %s: squashed import of component |
| |
| This commit copies the entire set of files as found in |
| %s %s |
| |
| For more information about previous commits, see the |
| upstream repository. |
| |
| Commit created by combo-layer. |
| EOF |
| ''' % (tree, author, committer, name, name, since_rev)) |
| editor.flush() |
| os.environ['GIT_EDITOR'] = 'sh %s' % editor.name |
| runcmd('git replace --edit %s' % rev) |
| |
| # Optional: rewrite history to change commit messages or to move files. |
| if 'hook' in repo or dest_dir != ".": |
| filter_branch = ['git', 'filter-branch', '--force'] |
| with tempfile.NamedTemporaryFile() as hookwrapper: |
| if 'hook' in repo: |
| # Create a shell script wrapper around the original hook that |
| # can be used by git filter-branch. Hook may or may not have |
| # an absolute path. |
| hook = repo['hook'] |
| hook = os.path.join(os.path.dirname(conf.conffile), '..', hook) |
| # The wrappers turns the commit message |
| # from stdin into a fake patch header. |
| # This is good enough for changing Subject |
| # and commit msg body with normal |
| # combo-layer hooks. |
| hookwrapper.write('''set -e |
| tmpname=$(mktemp) |
| trap "rm $tmpname" EXIT |
| echo -n 'Subject: [PATCH] ' >>$tmpname |
| cat >>$tmpname |
| if ! [ $(tail -c 1 $tmpname | od -A n -t x1) == '0a' ]; then |
| echo >>$tmpname |
| fi |
| echo '---' >>$tmpname |
| %s $tmpname $GIT_COMMIT %s |
| tail -c +18 $tmpname | head -c -4 |
| ''' % (hook, name)) |
| hookwrapper.flush() |
| filter_branch.extend(['--msg-filter', 'bash %s' % hookwrapper.name]) |
| if dest_dir != ".": |
| parent = os.path.dirname(dest_dir) |
| if not parent: |
| parent = '.' |
| # May run outside of the current directory, so do not assume that .git exists. |
| filter_branch.extend(['--tree-filter', 'mkdir -p .git/tmptree && mv $(ls -1 -a | grep -v -e ^.git$ -e ^.$ -e ^..$) .git/tmptree && mkdir -p %s && mv .git/tmptree %s' % (parent, dest_dir)]) |
| filter_branch.append('HEAD') |
| runcmd(filter_branch) |
| runcmd('git update-ref -d refs/original/refs/heads/%s' % name) |
| repo['rewritten_revision'] = runcmd('git rev-parse HEAD').strip() |
| repo['stripped_revision'] = repo['rewritten_revision'] |
| # Optional filter files: remove everything and re-populate using the normal filtering code. |
| # Override any potential .gitignore. |
| if file_filter or exclude_patterns: |
| runcmd('git rm -rf .') |
| if not os.path.exists(extract_dir): |
| os.makedirs(extract_dir) |
| copy_selected_files('HEAD', extract_dir, file_filter, exclude_patterns, '.', |
| subdir=dest_dir) |
| runcmd('git add --all --force .') |
| if runcmd('git status --porcelain'): |
| # Something to commit. |
| runcmd(['git', 'commit', '-m', |
| '''%s: select file subset |
| |
| Files from the component repository were chosen based on |
| the following filters: |
| file_filter = %s |
| file_exclude = %s''' % (name, file_filter or '<empty>', repo.get('file_exclude', '<empty>'))]) |
| repo['stripped_revision'] = runcmd('git rev-parse HEAD').strip() |
| |
| if not lastrev: |
| lastrev = runcmd('git rev-parse %s' % initialrev, ldir).strip() |
| conf.update(name, "last_revision", lastrev, initmode=True) |
| |
| if not conf.history: |
| runcmd("git add .") |
| else: |
| # Create Octopus merge commit according to http://stackoverflow.com/questions/10874149/git-octopus-merge-with-unrelated-repositoies |
| runcmd('git checkout master') |
| merge = ['git', 'merge', '--no-commit'] |
| for name in conf.repos: |
| repo = conf.repos[name] |
| # Use branch created earlier. |
| merge.append(name) |
| # Root all commits which have no parent in the common |
| # ancestor in the new repository. |
| for start in runcmd('git log --pretty=format:%%H --max-parents=0 %s' % name).split('\n'): |
| runcmd('git replace --graft %s %s' % (start, startrev)) |
| try: |
| runcmd(merge) |
| except Exception, error: |
| logger.info('''Merging component repository history failed, perhaps because of merge conflicts. |
| It may be possible to commit anyway after resolving these conflicts. |
| |
| %s''' % error) |
| # Create MERGE_HEAD and MERGE_MSG. "git merge" itself |
| # does not create MERGE_HEAD in case of a (harmless) failure, |
| # and we want certain auto-generated information in the |
| # commit message for future reference and/or automation. |
| with open('.git/MERGE_HEAD', 'w') as head: |
| with open('.git/MERGE_MSG', 'w') as msg: |
| msg.write('repo: initial import of components\n\n') |
| # head.write('%s\n' % startrev) |
| for name in conf.repos: |
| repo = conf.repos[name] |
| # <upstream ref> <rewritten ref> <rewritten + files removed> |
| msg.write('combo-layer-%s: %s %s %s\n' % (name, |
| repo['last_revision'], |
| repo['rewritten_revision'], |
| repo['stripped_revision'])) |
| rev = runcmd('git rev-parse %s' % name).strip() |
| head.write('%s\n' % rev) |
| |
| if conf.localconffile: |
| localadded = True |
| try: |
| runcmd("git rm --cached %s" % conf.localconffile, printerr=False) |
| except subprocess.CalledProcessError: |
| localadded = False |
| if localadded: |
| localrelpath = os.path.relpath(conf.localconffile) |
| runcmd("grep -q %s .gitignore || echo %s >> .gitignore" % (localrelpath, localrelpath)) |
| runcmd("git add .gitignore") |
| logger.info("Added local configuration file %s to .gitignore", localrelpath) |
| logger.info("Initial combo layer repository data has been created; please make any changes if desired and then use 'git commit' to make the initial commit.") |
| else: |
| logger.info("Repository already initialised, nothing to do.") |
| |
| |
| def check_repo_clean(repodir): |
| """ |
| check if the repo is clean |
| exit if repo is dirty |
| """ |
| output=runcmd("git status --porcelain", repodir) |
| r = re.compile('\?\? patch-.*/') |
| dirtyout = [item for item in output.splitlines() if not r.match(item)] |
| if dirtyout: |
| logger.error("git repo %s is dirty, please fix it first", repodir) |
| sys.exit(1) |
| |
| def check_patch(patchfile): |
| f = open(patchfile) |
| ln = f.readline() |
| of = None |
| in_patch = False |
| beyond_msg = False |
| pre_buf = '' |
| while ln: |
| if not beyond_msg: |
| if ln == '---\n': |
| if not of: |
| break |
| in_patch = False |
| beyond_msg = True |
| elif ln.startswith('--- '): |
| # We have a diff in the commit message |
| in_patch = True |
| if not of: |
| print('WARNING: %s contains a diff in its commit message, indenting to avoid failure during apply' % patchfile) |
| of = open(patchfile + '.tmp', 'w') |
| of.write(pre_buf) |
| pre_buf = '' |
| elif in_patch and not ln[0] in '+-@ \n\r': |
| in_patch = False |
| if of: |
| if in_patch: |
| of.write(' ' + ln) |
| else: |
| of.write(ln) |
| else: |
| pre_buf += ln |
| ln = f.readline() |
| f.close() |
| if of: |
| of.close() |
| os.rename(patchfile + '.tmp', patchfile) |
| |
| def drop_to_shell(workdir=None): |
| if not sys.stdin.isatty(): |
| print "Not a TTY so can't drop to shell for resolution, exiting." |
| return False |
| |
| shell = os.environ.get('SHELL', 'bash') |
| print('Dropping to shell "%s"\n' \ |
| 'When you are finished, run the following to continue:\n' \ |
| ' exit -- continue to apply the patches\n' \ |
| ' exit 1 -- abort\n' % shell); |
| ret = subprocess.call([shell], cwd=workdir) |
| if ret != 0: |
| print "Aborting" |
| return False |
| else: |
| return True |
| |
| def check_rev_branch(component, repodir, rev, branch): |
| try: |
| actualbranch = runcmd("git branch --contains %s" % rev, repodir, printerr=False) |
| except subprocess.CalledProcessError as e: |
| if e.returncode == 129: |
| actualbranch = "" |
| else: |
| raise |
| |
| if not actualbranch: |
| logger.error("%s: specified revision %s is invalid!" % (component, rev)) |
| return False |
| |
| branches = [] |
| branchlist = actualbranch.split("\n") |
| for b in branchlist: |
| branches.append(b.strip().split(' ')[-1]) |
| |
| if branch not in branches: |
| logger.error("%s: specified revision %s is not on specified branch %s!" % (component, rev, branch)) |
| return False |
| return True |
| |
| def get_repos(conf, repo_names): |
| repos = [] |
| for name in repo_names: |
| if name.startswith('-'): |
| break |
| else: |
| repos.append(name) |
| for repo in repos: |
| if not repo in conf.repos: |
| logger.error("Specified component '%s' not found in configuration" % repo) |
| sys.exit(1) |
| |
| if not repos: |
| repos = conf.repos |
| |
| return repos |
| |
| def action_pull(conf, args): |
| """ |
| update the component repos only |
| """ |
| repos = get_repos(conf, args[1:]) |
| |
| # make sure all repos are clean |
| for name in repos: |
| check_repo_clean(conf.repos[name]['local_repo_dir']) |
| |
| for name in repos: |
| repo = conf.repos[name] |
| ldir = repo['local_repo_dir'] |
| branch = repo.get('branch', "master") |
| logger.info("update branch %s of component repo %s in %s ..." % (branch, name, ldir)) |
| if not conf.hard_reset: |
| # Try to pull only the configured branch. Beware that this may fail |
| # when the branch is currently unknown (for example, after reconfiguring |
| # combo-layer). In that case we need to fetch everything and try the check out |
| # and pull again. |
| try: |
| runcmd("git checkout %s" % branch, ldir, printerr=False) |
| except subprocess.CalledProcessError: |
| output=runcmd("git fetch", ldir) |
| logger.info(output) |
| runcmd("git checkout %s" % branch, ldir) |
| runcmd("git pull --ff-only", ldir) |
| else: |
| output=runcmd("git pull --ff-only", ldir) |
| logger.info(output) |
| else: |
| output=runcmd("git fetch", ldir) |
| logger.info(output) |
| runcmd("git checkout %s" % branch, ldir) |
| runcmd("git reset --hard FETCH_HEAD", ldir) |
| |
| def action_update(conf, args): |
| """ |
| update the component repos |
| generate the patch list |
| apply the generated patches |
| """ |
| components = [arg.split(':')[0] for arg in args[1:]] |
| revisions = {} |
| for arg in args[1:]: |
| if ':' in arg: |
| a = arg.split(':', 1) |
| revisions[a[0]] = a[1] |
| repos = get_repos(conf, components) |
| |
| # make sure combo repo is clean |
| check_repo_clean(os.getcwd()) |
| |
| import uuid |
| patch_dir = "patch-%s" % uuid.uuid4() |
| if not os.path.exists(patch_dir): |
| os.mkdir(patch_dir) |
| |
| # Step 1: update the component repos |
| if conf.nopull: |
| logger.info("Skipping pull (-n)") |
| else: |
| action_pull(conf, ['arg0'] + components) |
| |
| for name in repos: |
| revision = revisions.get(name, None) |
| repo = conf.repos[name] |
| ldir = repo['local_repo_dir'] |
| dest_dir = repo['dest_dir'] |
| branch = repo.get('branch', "master") |
| repo_patch_dir = os.path.join(os.getcwd(), patch_dir, name) |
| |
| # Step 2: generate the patch list and store to patch dir |
| logger.info("Generating patches from %s..." % name) |
| top_revision = revision or branch |
| if not check_rev_branch(name, ldir, top_revision, branch): |
| sys.exit(1) |
| if dest_dir != ".": |
| prefix = "--src-prefix=a/%s/ --dst-prefix=b/%s/" % (dest_dir, dest_dir) |
| else: |
| prefix = "" |
| if repo['last_revision'] == "": |
| logger.info("Warning: last_revision of component %s is not set, starting from the first commit" % name) |
| patch_cmd_range = "--root %s" % top_revision |
| rev_cmd_range = top_revision |
| else: |
| if not check_rev_branch(name, ldir, repo['last_revision'], branch): |
| sys.exit(1) |
| patch_cmd_range = "%s..%s" % (repo['last_revision'], top_revision) |
| rev_cmd_range = patch_cmd_range |
| |
| file_filter = repo.get('file_filter',"") |
| |
| patch_cmd = "git format-patch -N %s --output-directory %s %s -- %s" % \ |
| (prefix,repo_patch_dir, patch_cmd_range, file_filter) |
| output = runcmd(patch_cmd, ldir) |
| logger.debug("generated patch set:\n%s" % output) |
| patchlist = output.splitlines() |
| |
| rev_cmd = "git rev-list --no-merges %s -- %s" % (rev_cmd_range, file_filter) |
| revlist = runcmd(rev_cmd, ldir).splitlines() |
| |
| # Step 3: Call repo specific hook to adjust patch |
| if 'hook' in repo: |
| # hook parameter is: ./hook patchpath revision reponame |
| count=len(revlist)-1 |
| for patch in patchlist: |
| runcmd("%s %s %s %s" % (repo['hook'], patch, revlist[count], name)) |
| count=count-1 |
| |
| # Step 3a: Filter out unwanted files and patches. |
| exclude = repo.get('file_exclude', '') |
| if exclude: |
| filter = ['filterdiff', '-p1'] |
| for path in exclude.split(): |
| filter.append('-x') |
| filter.append('%s/%s' % (dest_dir, path) if dest_dir != '.' else path) |
| for patch in patchlist[:]: |
| filtered = patch + '.tmp' |
| with open(filtered, 'w') as f: |
| runcmd(filter + [patch], out=f) |
| # Now check for empty patches. |
| if runcmd(['filterdiff', '--list', filtered]): |
| # Possibly modified. |
| os.unlink(patch) |
| os.rename(filtered, patch) |
| else: |
| # Empty, ignore it. Must also remove from revlist. |
| with open(patch, 'r') as f: |
| fromline = f.readline() |
| if not fromline: |
| # Patch must have been empty to start with. No need |
| # to remove it. |
| continue |
| m = re.match(r'''^From ([0-9a-fA-F]+) .*\n''', fromline) |
| rev = m.group(1) |
| logger.debug('skipping empty patch %s = %s' % (patch, rev)) |
| os.unlink(patch) |
| os.unlink(filtered) |
| patchlist.remove(patch) |
| revlist.remove(rev) |
| |
| # Step 4: write patch list and revision list to file, for user to edit later |
| patchlist_file = os.path.join(os.getcwd(), patch_dir, "patchlist-%s" % name) |
| repo['patchlist'] = patchlist_file |
| f = open(patchlist_file, 'w') |
| count=len(revlist)-1 |
| for patch in patchlist: |
| f.write("%s %s\n" % (patch, revlist[count])) |
| check_patch(os.path.join(patch_dir, patch)) |
| count=count-1 |
| f.close() |
| |
| # Step 5: invoke bash for user to edit patch and patch list |
| if conf.interactive: |
| print('You may now edit the patch and patch list in %s\n' \ |
| 'For example, you can remove unwanted patch entries from patchlist-*, so that they will be not applied later' % patch_dir); |
| if not drop_to_shell(patch_dir): |
| sys.exit(1) |
| |
| # Step 6: apply the generated and revised patch |
| apply_patchlist(conf, repos) |
| runcmd("rm -rf %s" % patch_dir) |
| |
| # Step 7: commit the updated config file if it's being tracked |
| relpath = os.path.relpath(conf.conffile) |
| try: |
| output = runcmd("git status --porcelain %s" % relpath, printerr=False) |
| except: |
| # Outside the repository |
| output = None |
| if output: |
| logger.info("Committing updated configuration file") |
| if output.lstrip().startswith("M"): |
| |
| # create the "components" string |
| component_str = "all components" |
| if len(components) > 0: |
| # otherwise tell which components were actually changed |
| component_str = ", ".join(components) |
| |
| # expand the template with known values |
| template = Template(conf.commit_msg_template) |
| raw_msg = template.substitute(components = component_str) |
| |
| # sanitize the string before using it in command line |
| msg = raw_msg.replace('"', '\\"') |
| |
| runcmd('git commit -m "%s" %s' % (msg, relpath)) |
| |
| def apply_patchlist(conf, repos): |
| """ |
| apply the generated patch list to combo repo |
| """ |
| for name in repos: |
| repo = conf.repos[name] |
| lastrev = repo["last_revision"] |
| prevrev = lastrev |
| |
| # Get non-blank lines from patch list file |
| patchlist = [] |
| if os.path.exists(repo['patchlist']) or not conf.interactive: |
| # Note: we want this to fail here if the file doesn't exist and we're not in |
| # interactive mode since the file should exist in this case |
| with open(repo['patchlist']) as f: |
| for line in f: |
| line = line.rstrip() |
| if line: |
| patchlist.append(line) |
| |
| ldir = conf.repos[name]['local_repo_dir'] |
| branch = conf.repos[name].get('branch', "master") |
| branchrev = runcmd("git rev-parse %s" % branch, ldir).strip() |
| |
| if patchlist: |
| logger.info("Applying patches from %s..." % name) |
| linecount = len(patchlist) |
| i = 1 |
| for line in patchlist: |
| patchfile = line.split()[0] |
| lastrev = line.split()[1] |
| patchdisp = os.path.relpath(patchfile) |
| if os.path.getsize(patchfile) == 0: |
| logger.info("(skipping %d/%d %s - no changes)" % (i, linecount, patchdisp)) |
| else: |
| cmd = "git am --keep-cr %s-p1 %s" % ('-s ' if repo.get('signoff', True) else '', patchfile) |
| logger.info("Applying %d/%d: %s" % (i, linecount, patchdisp)) |
| try: |
| runcmd(cmd) |
| except subprocess.CalledProcessError: |
| logger.info('Running "git am --abort" to cleanup repo') |
| runcmd("git am --abort") |
| logger.error('"%s" failed' % cmd) |
| logger.info("Please manually apply patch %s" % patchdisp) |
| logger.info("Note: if you exit and continue applying without manually applying the patch, it will be skipped") |
| if not drop_to_shell(): |
| if prevrev != repo['last_revision']: |
| conf.update(name, "last_revision", prevrev) |
| sys.exit(1) |
| prevrev = lastrev |
| i += 1 |
| # Once all patches are applied, we should update |
| # last_revision to the branch head instead of the last |
| # applied patch. The two are not necessarily the same when |
| # the last commit is a merge commit or when the patches at |
| # the branch head were intentionally excluded. |
| # |
| # If we do not do that for a merge commit, the next |
| # combo-layer run will only exclude patches reachable from |
| # one of the merged branches and try to re-apply patches |
| # from other branches even though they were already |
| # copied. |
| # |
| # If patches were intentionally excluded, the next run will |
| # present them again instead of skipping over them. This |
| # may or may not be intended, so the code here is conservative |
| # and only addresses the "head is merge commit" case. |
| if lastrev != branchrev and \ |
| len(runcmd("git show --pretty=format:%%P --no-patch %s" % branch, ldir).split()) > 1: |
| lastrev = branchrev |
| else: |
| logger.info("No patches to apply from %s" % name) |
| lastrev = branchrev |
| |
| if lastrev != repo['last_revision']: |
| conf.update(name, "last_revision", lastrev) |
| |
| def action_splitpatch(conf, args): |
| """ |
| generate the commit patch and |
| split the patch per repo |
| """ |
| logger.debug("action_splitpatch") |
| if len(args) > 1: |
| commit = args[1] |
| else: |
| commit = "HEAD" |
| patchdir = "splitpatch-%s" % commit |
| if not os.path.exists(patchdir): |
| os.mkdir(patchdir) |
| |
| # filerange_root is for the repo whose dest_dir is root "." |
| # and it should be specified by excluding all other repo dest dir |
| # like "-x repo1 -x repo2 -x repo3 ..." |
| filerange_root = "" |
| for name in conf.repos: |
| dest_dir = conf.repos[name]['dest_dir'] |
| if dest_dir != ".": |
| filerange_root = '%s -x "%s/*"' % (filerange_root, dest_dir) |
| |
| for name in conf.repos: |
| dest_dir = conf.repos[name]['dest_dir'] |
| patch_filename = "%s/%s.patch" % (patchdir, name) |
| if dest_dir == ".": |
| cmd = "git format-patch -n1 --stdout %s^..%s | filterdiff -p1 %s > %s" % (commit, commit, filerange_root, patch_filename) |
| else: |
| cmd = "git format-patch --no-prefix -n1 --stdout %s^..%s -- %s > %s" % (commit, commit, dest_dir, patch_filename) |
| runcmd(cmd) |
| # Detect empty patches (including those produced by filterdiff above |
| # that contain only preamble text) |
| if os.path.getsize(patch_filename) == 0 or runcmd("filterdiff %s" % patch_filename) == "": |
| os.remove(patch_filename) |
| logger.info("(skipping %s - no changes)", name) |
| else: |
| logger.info(patch_filename) |
| |
| def action_error(conf, args): |
| logger.info("invalid action %s" % args[0]) |
| |
| actions = { |
| "init": action_init, |
| "update": action_update, |
| "pull": action_pull, |
| "splitpatch": action_splitpatch, |
| } |
| |
| def main(): |
| parser = optparse.OptionParser( |
| version = "Combo Layer Repo Tool version %s" % __version__, |
| usage = """%prog [options] action |
| |
| Create and update a combination layer repository from multiple component repositories. |
| |
| Action: |
| init initialise the combo layer repo |
| update [components] get patches from component repos and apply them to the combo repo |
| pull [components] just pull component repos only |
| splitpatch [commit] generate commit patch and split per component, default commit is HEAD""") |
| |
| parser.add_option("-c", "--conf", help = "specify the config file (conf/combo-layer.conf is the default).", |
| action = "store", dest = "conffile", default = "conf/combo-layer.conf") |
| |
| parser.add_option("-i", "--interactive", help = "interactive mode, user can edit the patch list and patches", |
| action = "store_true", dest = "interactive", default = False) |
| |
| parser.add_option("-D", "--debug", help = "output debug information", |
| action = "store_true", dest = "debug", default = False) |
| |
| parser.add_option("-n", "--no-pull", help = "skip pulling component repos during update", |
| action = "store_true", dest = "nopull", default = False) |
| |
| parser.add_option("--hard-reset", |
| help = "instead of pull do fetch and hard-reset in component repos", |
| action = "store_true", dest = "hard_reset", default = False) |
| |
| parser.add_option("-H", "--history", help = "import full history of components during init", |
| action = "store_true", default = False) |
| |
| options, args = parser.parse_args(sys.argv) |
| |
| # Dispatch to action handler |
| if len(args) == 1: |
| logger.error("No action specified, exiting") |
| parser.print_help() |
| elif args[1] not in actions: |
| logger.error("Unsupported action %s, exiting\n" % (args[1])) |
| parser.print_help() |
| elif not os.path.exists(options.conffile): |
| logger.error("No valid config file, exiting\n") |
| parser.print_help() |
| else: |
| if options.debug: |
| logger.setLevel(logging.DEBUG) |
| confdata = Configuration(options) |
| initmode = (args[1] == 'init') |
| confdata.sanity_check(initmode) |
| actions.get(args[1], action_error)(confdata, args[1:]) |
| |
| if __name__ == "__main__": |
| try: |
| ret = main() |
| except Exception: |
| ret = 1 |
| import traceback |
| traceback.print_exc(5) |
| sys.exit(ret) |