[PATCH v3 RESEND 2/2] git-p4: remove "rollback" verb
- From
Joel Holdsworth <jholdsworth@nvidia.com>
- Date
- Jan 4, 2022, 12:34 UTC
- Message-ID
- <20220104123431.1710-3-jholdsworth@nvidia.com>
- In-Reply-To
- <20220104123431.1710-1-jholdsworth@nvidia.com>
The "rollback" verb implements a simple algorithm which takes the set of remote perforce tracker branches, or optionally, the complete collection of local branches in a git repository, and deletes commits from these branches until there are no commits left with a perforce change number greater than than a user-specified change number. If the base of a git branch has a newer change number than the user-specified maximum, then the branch is deleted.
In future, there might be an argument for the addition of some kind of "reset this branch back to a given perforce change number" verb for git-p4. However, in its current form it is unlikely to be useful to users for the following reasons:
* The verb is completely undocumented. The only description provided
contains the following text: "A tool to debug the multi-branch
import. Don't use :)". * The verb has a very narrow purpose in that it applies the rollback
operation to fixed sets of branches - either all remote p4 branches,
or all local branches. There is no way for users to specify branches
with more granularity, for example, allowing users to specify a
single branch or a set of branches. The utility of the current
implementation is therefore a niche within a niche.Given these shortcomings, this patch removes the verb from git-p4.
Signed-off-by: Joel Holdsworth <jholdsworth@nvidia.com> --- git-p4.py | 60 ------------------------------------------------------- 1 file changed, 60 deletions(-)
diff --git a/git-p4.py b/git-p4.py index b7ed8e41ff..a7cb321f75 100755 --- a/git-p4.py +++ b/git-p4.py @@ -1532,65 +1532,6 @@ def loadUserMapFromCache(self): except IOError: self.getUserMapFromPerforceServer() -class P4RollBack(Command): - def __init__(self): - Command.__init__(self) - self.options = [ - optparse.make_option("--local", dest="rollbackLocalBranches", action="store_true") - ] - self.description = "A tool to debug the multi-branch import. Don't use :)" - self.rollbackLocalBranches = False - - def run(self, args): - if len(args) != 1: - return False - maxChange = int(args[0]) - - if "p4ExitCode" in p4Cmd("changes -m 1"): - die("Problems executing p4"); - - if self.rollbackLocalBranches: - refPrefix = "refs/heads/" - lines = read_pipe_lines("git rev-parse --symbolic --branches") - else: - refPrefix = "refs/remotes/" - lines = read_pipe_lines("git rev-parse --symbolic --remotes") - - for line in lines: - if self.rollbackLocalBranches or (line.startswith("p4/") and line != "p4/HEAD\n"): - line = line.strip() - ref = refPrefix + line - log = extractLogMessageFromGitCommit(ref) - settings = extractSettingsGitLog(log) - - depotPaths = settings['depot-paths'] - change = settings['change'] - - changed = False - - if len(p4Cmd("changes -m 1 " + ' '.join (['%s...@%s' % (p, maxChange) - for p in depotPaths]))) == 0: - print("Branch %s did not exist at change %s, deleting." % (ref, maxChange)) - system("git update-ref -d %s `git rev-parse %s`" % (ref, ref)) - continue - - while change and int(change) > maxChange: - changed = True - if self.verbose: - print("%s is at %s ; rewinding towards %s" % (ref, change, maxChange)) - system("git update-ref %s \"%s^\"" % (ref, ref)) - log = extractLogMessageFromGitCommit(ref) - settings = extractSettingsGitLog(log) - - - depotPaths = settings['depot-paths'] - change = settings['change'] - - if changed: - print("%s rewound to %s" % (ref, change)) - - return True - class P4Submit(Command, P4UserMap): conflict_behavior_choices = ("ask", "skip", "quit") @@ -4353,7 +4294,6 @@ def printUsage(commands): "sync" : P4Sync, "rebase" : P4Rebase, "clone" : P4Clone, - "rollback" : P4RollBack, "branches" : P4Branches, "unshelve" : P4Unshelve, }
-- 2.34.1