-def perform_restore(d, backup):
- # You don't want d.restore() because it doesn't perform
- # the file level backup
- shell.Shell().call("wizard", "restore", backup)
- try:
- d.verifyWeb()
- except deploy.WebVerificationError:
- logging.critical("Web verification failed after rollback")
-
-def make_commit_message(version):
- message = "Upgraded autoinstall in %s to %s.\n\n%s" % (util.get_dir_owner(), version, util.get_git_footer())
- try:
- message += "\nUpgraded-by: " + util.get_operator_git()
- except util.NoOperatorInfo:
- pass
- return message
-
-def calculate_newest_version(sh, repo):
- # XXX: put this in Application
- return sh.eval("git", "--git-dir="+repo, "describe", "--tags", "master")
-
-def calculate_parents(sh, version):
- user_commit = sh.eval("git", "rev-parse", "HEAD")
- next_commit = sh.eval("git", "rev-parse", version)
- return user_commit, next_commit
-
-def perform_pre_commit(sh):
- message = "Pre-commit of %s locker before autoinstall upgrade.\n\n%s" % (util.get_dir_owner(), util.get_git_footer())
- try:
- message += "\nPre-commit-by: " + util.get_operator_git()
- except util.NoOperatorInfo:
- pass
- try:
- sh.call("git", "commit", "-a", "-m", message)
- except shell.CallError:
- logging.info("No changes detected")
-
-def perform_tmp_clone(sh, use_shm):
- if use_shm:
- dir = "/dev/shm/wizard"
- if not os.path.exists(dir):
- os.mkdir(dir)
- os.chmod(dir, 0o777)
- else:
- dir = None
- temp_dir = tempfile.mkdtemp(prefix="wizard", dir=dir)
- temp_wc_dir = os.path.join(temp_dir, "repo")
- logging.info("Using temporary directory: " + temp_wc_dir)
- sh.call("git", "clone", "-q", "--shared", ".", temp_wc_dir)
- return temp_dir, temp_wc_dir
-
-def perform_merge(sh, repo, d, wc, version, use_shm, kib_avail, non_interactive):
- # Note: avail_quota == None means unlimited
- # naive merge algorithm:
- # sh.call("git", "merge", "-m", message, "scripts/master")
- # crazy merge algorithm:
- def make_virtual_commit(tag, parents = []):
- """WARNING: Changes state of Git repository"""
- sh.call("git", "checkout", "-q", tag, "--")
- wc.parametrize(d)
- for file in wc.application.parametrized_files:
- try:
- sh.call("git", "add", "--", file)
- except shell.CallError:
- pass
- virtual_tree = sh.eval("git", "write-tree", log=True)
- parent_args = itertools.chain(*(["-p", p] for p in parents))
- virtual_commit = sh.eval("git", "commit-tree", virtual_tree,
- *parent_args, input="", log=True)
- sh.call("git", "reset", "--hard")
- return virtual_commit
- user_tree = sh.eval("git", "rev-parse", "HEAD^{tree}")
- base_virtual_commit = make_virtual_commit(wc.app_version.scripts_tag)
- next_virtual_commit = make_virtual_commit(version, [base_virtual_commit])
- user_virtual_commit = sh.eval("git", "commit-tree", user_tree,
- "-p", base_virtual_commit, input="", log=True)
- sh.call("git", "checkout", user_virtual_commit, "--")
- wc.prepareMerge()
- try:
- sh.call("git", "commit", "--amend", "-a", "-m", "amendment")
- except shell.CallError as e:
- pass
- try:
- sh.call("git", "config", "merge.conflictstyle", "diff3")
- sh.call("git", "merge", next_virtual_commit)
- except shell.CallError as e:
- logging.info("Merge failed with these messages:\n\n" + e.stderr)
- # Run the application's specific merge resolution algorithms
- # and see if we can salvage it
- curdir = os.getcwd()
- if wc.resolveConflicts():
- logging.info("Resolved conflicts with application specific knowledge")
- sh.call("git", "commit", "-a", "-m", "merge")
- return os.getcwd()
- logging.info("Conflict info:\n" + sh.eval("git", "diff"))
- outlines = sh.eval("git", "ls-files", "--unmerged").splitlines()
+ def merge(self):
+ if not self.options.dry_run:
+ self.mergePreCommit()
+ self.mergeClone()
+ logging.debug("Temporary WC dir is %s", self.temp_wc_dir)
+ with util.ChangeDirectory(self.temp_wc_dir):
+ self.wc = deploy.WorkingCopy(".")
+ shell.call("git", "remote", "add", "wizard", self.repo)
+ shell.call("git", "fetch", "-q", "wizard")
+ self.user_commit = shell.eval("git", "rev-parse", "HEAD")
+ self.next_commit = shell.eval("git", "rev-parse", self.version)
+ self.mergeSaveState()
+ self.mergePerform()
+ def mergePreCommit(self):
+ def get_file_set(rev):
+ return set(shell.eval("git", "ls-tree", "-r", "--name-only", rev).split("\n"))
+ # add all files that are unversioned but would be replaced by the pull,
+ # and generate a new commit
+ old_files = get_file_set("HEAD")
+ new_files = get_file_set(self.version)
+ added_files = new_files - old_files
+ for f in added_files:
+ if os.path.lexists(f): # broken symbolic links count too!
+ shell.call("git", "add", f)
+ message = "Pre-commit before autoinstall upgrade.\n\n%s" % util.get_git_footer()
+ try:
+ message += "\nPre-commit-by: " + util.get_operator_git()
+ except util.NoOperatorInfo:
+ pass
+ try:
+ shell.call("git", "commit", "-a", "-m", message)
+ except shell.CallError as e:
+ if "Permission denied" in e.stderr:
+ raise util.PermissionsError
+ elif e.stderr:
+ raise
+ logging.info("No changes detected")
+ def mergeClone(self):
+ # If /dev/shm exists, it's a tmpfs and we can use it
+ # to do a fast git merge. Don't forget to move it to
+ # /tmp if it fails.
+ if not self.options.dry_run and not self.options.debug:
+ self.use_shm = os.path.exists("/dev/shm")
+ if self.use_shm:
+ dir = "/dev/shm/wizard"
+ if not os.path.exists(dir):
+ os.mkdir(dir)
+ # XXX: race
+ os.chmod(dir, 0o777)
+ else:
+ dir = None
+ self.temp_dir = tempfile.mkdtemp(prefix="wizard", dir=dir)
+ self.temp_wc_dir = os.path.join(self.temp_dir, "repo")
+ logging.info("Using temporary directory: " + self.temp_wc_dir)
+ shell.call("git", "clone", "-q", ".", self.temp_wc_dir)
+ def mergeSaveState(self):
+ """Save variables so that ``--continue`` will work."""
+ # yeah yeah no trailing newline whatever
+ open(".git/WIZARD_UPGRADE_VERSION", "w").write(self.version)
+ open(".git/WIZARD_PARENTS", "w").write("%s\n%s" % (self.user_commit, self.next_commit))
+ open(".git/WIZARD_SIZE", "w").write(str(util.disk_usage()))
+ if self.options.log_file:
+ open(".git/WIZARD_LOG_FILE", "w").write(self.options.log_file)
+ def mergePerform(self):
+ def prepare_config():
+ self.wc.prepareConfig()
+ shell.call("git", "add", ".")
+ def resolve_conflicts():
+ return self.wc.resolveConflicts()
+ shell.call("git", "config", "merge.conflictstyle", "diff3")
+ # setup rerere
+ if self.options.rr_cache is None:
+ self.options.rr_cache = os.path.join(self.prod.location, ".git", "rr-cache")
+ if not os.path.exists(self.options.rr_cache):
+ os.mkdir(self.options.rr_cache)
+ os.symlink(self.options.rr_cache, os.path.join(self.wc.location, ".git", "rr-cache"))
+ shell.call("git", "config", "rerere.enabled", "true")
+ try:
+ merge.merge(self.wc.app_version.wizard_tag, self.version,
+ prepare_config, resolve_conflicts)
+ except merge.MergeError:
+ self.mergeFail()
+ def mergeFail(self):