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* replay: stop assuming replayed branches do not divergeElijah Newren2023-11-261-0/+52
| | | | | | | | | | | | | | | The replay command is able to replay multiple branches but when some of them are based on other replayed branches, their commit should be replayed onto already replayed commits. For this purpose, let's store the replayed commit and its original commit in a key value store, so that we can easily find and reuse a replayed commit instead of the original one. Co-authored-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* replay: add --contained to rebase contained branchesElijah Newren2023-11-261-0/+29
| | | | | | | | | | | Let's add a `--contained` option that can be used along with `--onto` to rebase all the branches contained in the <revision-range> argument. Co-authored-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* replay: add --advance or 'cherry-pick' modeElijah Newren2023-11-261-0/+34
| | | | | | | | | | | | | | | There is already a 'rebase' mode with `--onto`. Let's add an 'advance' or 'cherry-pick' mode with `--advance`. This new mode will make the target branch advance as we replay commits onto it. The replayed commits should have a single tip, so that it's clear where the target branch should be advanced. If they have more than one tip, this new mode will error out. Co-authored-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* replay: use standard revision rangesElijah Newren2023-11-261-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of the fixed "<oldbase> <branch>" arguments, the replay command now accepts "<revision-range>..." arguments in a similar way as many other Git commands. This makes its interface more standard and more flexible. This also enables many revision related options accepted and eaten by setup_revisions(). If the replay command was a high level one or had a high level mode, it would make sense to restrict some of the possible options, like those generating non-contiguous history, as they could be confusing for most users. Also as the interface of the command is now mostly finalized, we can add more documentation and more testcases to make sure the command will continue to work as designed in the future. We only document the rev-list related options among all the revision related options that are now accepted, as the rev-list related ones are probably the most useful for now. Helped-by: Dragan Simic <dsimic@manjaro.org> Helped-by: Linus Arver <linusa@google.com> Co-authored-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* replay: make it a minimal server side commandElijah Newren2023-11-261-1/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | We want this command to be a minimal command that just does server side picking of commits, displaying the results on stdout for higher level scripts to consume. So let's simplify it: * remove the worktree and index reading/writing, * remove the ref (and reflog) updating, * remove the assumptions tying us to HEAD, since (a) this is not a rebase and (b) we want to be able to pick commits in a bare repo, i.e. to/from branches that are not checked out and not the main branch, * remove unneeded includes, * handle rebasing multiple branches by printing on stdout the update ref commands that should be performed. The output can be piped into `git update-ref --stdin` for the ref updates to happen. In the future to make it easier for users to use this command directly maybe an option can be added to automatically pipe its output into `git update-ref`. Co-authored-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* replay: remove HEAD related sanity checkElijah Newren2023-11-261-2/+0
| | | | | | | | | | | | | | We want replay to be a command that can be used on the server side on any branch, not just the current one, so we are going to stop updating HEAD in a future commit. A "sanity check" that makes sure we are replaying the current branch doesn't make sense anymore. Let's remove it. Co-authored-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* replay: introduce new builtinElijah Newren2023-11-261-0/+60
For now, this is just a rename from `t/helper/test-fast-rebase.c` into `builtin/replay.c` with minimal changes to make it build appropriately. Let's add a stub documentation and a stub test script though. Subsequent commits will flesh out the capabilities of the new command and make it a more standard regular builtin. Helped-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Co-authored-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>