git/builtin
Patrick Steinhardt c6c2257930 builtin/history: introduce "fixup" subcommand
The newly introduced git-history(1) command provides functionality to
easily edit commit history while also rebasing dependent branches. The
functionality exposed by this command is still somewhat limited though.

One common use case when editing commit history that is not yet covered
is fixing up a specific commit. Introduce a new subcommand that allows
the user to do exactly that by performing a three-way merge into the
target's commit tree, using HEAD's tree as the merge base. The flow is
thus essentially:

    $ echo changes >file
    $ git add file
    $ git history fixup HEAD~

Like with the other commands, this will automatically rebase dependent
branches, as well. Unlike the other commands though:

  - The command does not work in a bare repository as it interacts with
    the index.

  - The command may run into merge conflicts. If so, the command will
    simply abort.

Especially the second item limits the usefulness of this command a bit.
But there are plans to introduce first-class conflicts into Git, which
will help use cases like this one.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-27 22:20:57 +09:00
..
add.c Merge branch 'ps/history-split' 2026-03-24 12:31:32 -07:00
am.c Merge branch 'vp/http-rate-limit-retries' 2026-04-01 10:28:18 -07:00
annotate.c
apply.c builtin: use default hash when outside a repository 2025-07-01 14:58:24 -07:00
archive.c
backfill.c Merge branch 'th/backfill-auto-detect-sparseness-fix' 2026-04-07 14:59:28 -07:00
bisect.c refs: replace `refs_for_each_glob_ref_in()` 2026-02-23 13:21:19 -08:00
blame.c mailmap: stop using the_repository 2026-02-20 08:13:58 -08:00
branch.c object-name: turn INTERPRET_BRANCH_* constants into enum values 2026-03-18 12:52:29 -07:00
bugreport.c object-file: move `safe_create_leading_directories()` into "path.c" 2025-04-15 08:24:35 -07:00
bundle.c
cat-file.c odb: rename `odb_has_object()` flags 2026-03-31 20:43:14 -07:00
check-attr.c config: drop `git_config()` wrapper 2025-07-23 08:15:18 -07:00
check-ignore.c config: move Git config parsing into "environment.c" 2025-07-23 08:15:22 -07:00
check-mailmap.c mailmap: stop using the_repository 2026-02-20 08:13:58 -08:00
check-ref-format.c
checkout--worker.c config: move Git config parsing into "environment.c" 2025-07-23 08:15:22 -07:00
checkout-index.c config: move Git config parsing into "environment.c" 2025-07-23 08:15:22 -07:00
checkout.c Merge branch 'ps/history-split' 2026-03-24 12:31:32 -07:00
clean.c Merge branch 'jk/color-variable-fixes' 2025-09-29 11:40:35 -07:00
clone.c Merge branch 'ob/core-attributesfile-in-repository' 2026-03-05 10:04:49 -08:00
column.c config: drop `git_config()` wrapper 2025-07-23 08:15:18 -07:00
commit-graph.c commit-graph: add new config for changed-paths & recommend it in scalar 2025-10-22 10:40:11 -07:00
commit-tree.c commit: rename `free_commit_list()` to conform to coding guidelines 2026-01-15 05:32:31 -08:00
commit.c Merge branch 'ps/history-split' 2026-03-24 12:31:32 -07:00
config.c config: store allocated string in non-const pointer 2026-03-26 12:47:17 -07:00
count-objects.c packfile: introduce macro to iterate through packs 2025-10-16 14:42:39 -07:00
credential-cache--daemon.c config: drop `git_config_get_bool()` wrapper 2025-07-23 08:15:20 -07:00
credential-cache.c
credential-store.c builtin/credential-store: move is_rfc3986_unreserved to url.[ch] 2026-01-12 11:56:56 -08:00
credential.c config: move Git config parsing into "environment.c" 2025-07-23 08:15:22 -07:00
describe.c refs: replace `refs_for_each_rawref()` 2026-02-23 13:21:18 -08:00
diagnose.c object-file: move `safe_create_leading_directories()` into "path.c" 2025-04-15 08:24:35 -07:00
diff-files.c config: drop `git_config()` wrapper 2025-07-23 08:15:18 -07:00
diff-index.c config: drop `git_config()` wrapper 2025-07-23 08:15:18 -07:00
diff-pairs.c
diff-tree.c Merge branch 'ps/commit-list-functions-renamed' 2026-02-13 13:39:25 -08:00
diff.c diff: --no-index should ignore the worktree 2025-08-09 17:22:01 -07:00
difftool.c odb: rename `repo_read_object_file()` 2025-07-01 14:46:38 -07:00
fast-export.c fast-import: add 'abort-if-invalid' mode to '--signed-commits=<mode>' 2026-03-26 12:42:57 -07:00
fast-import.c Merge branch 'jt/fast-import-signed-modes' 2026-04-07 14:59:27 -07:00
fetch-pack.c builtin/fetch-pack: cleanup before return error 2025-06-04 08:52:25 -07:00
fetch.c odb: rename `odb_has_object()` flags 2026-03-31 20:43:14 -07:00
fmt-merge-msg.c builtin/fmt-merge-msg: stop depending on 'the_repository' 2025-08-11 09:19:40 -07:00
for-each-ref.c Merge branch 'ms/refs-list' 2025-08-22 13:13:20 -07:00
for-each-repo.c for-each-repo: simplify passing of parameters 2026-03-03 10:20:00 -08:00
fsck.c Merge branch 'ps/odb-cleanup' 2026-04-08 10:19:17 -07:00
fsmonitor--daemon.c config: move Git config parsing into "environment.c" 2025-07-23 08:15:22 -07:00
gc.c Merge branch 'ps/object-counting' 2026-03-25 12:58:05 -07:00
get-tar-commit-id.c
grep.c Merge branch 'ps/odb-sources' 2026-03-12 14:09:07 -07:00
hash-object.c config: move Git config parsing into "environment.c" 2025-07-23 08:15:22 -07:00
help.c Merge branch 'ac/help-sort-correctly' 2026-03-23 09:20:30 -07:00
history.c builtin/history: introduce "fixup" subcommand 2026-04-27 22:20:57 +09:00
hook.c hook: reject unknown hook names in git-hook(1) 2026-03-25 14:00:48 -07:00
index-pack.c Merge branch 'ps/odb-cleanup' 2026-04-08 10:19:17 -07:00
init-db.c Merge branch 'ps/parse-options-integers' 2025-04-24 17:25:34 -07:00
interpret-trailers.c Merge branch 'kh/doc-interpret-trailers-1' 2026-03-27 11:00:02 -07:00
last-modified.c Merge branch 'tc/last-modified-not-a-tree' 2026-02-13 13:39:25 -08:00
log.c Merge branch 'mf/format-patch-cover-letter-format' 2026-04-03 13:01:08 -07:00
ls-files.c Merge branch 'ds/ls-files-lazy-unsparse' 2025-09-08 14:54:35 -07:00
ls-remote.c ref-filter: propagate peeled object ID 2025-11-04 07:32:25 -08:00
ls-tree.c cocci: convert parse_tree functions to repo_ variants 2026-01-09 18:36:18 -08:00
mailinfo.c
mailsplit.c
merge-base.c commit: rename `free_commit_list()` to conform to coding guidelines 2026-01-15 05:32:31 -08:00
merge-file.c Merge branch 'mr/merge-file-object-id-worktree-fix' 2026-03-27 11:00:01 -07:00
merge-index.c
merge-ours.c merge-ours: integrate with sparse-index 2026-02-06 11:45:33 -08:00
merge-recursive.c builtin: also setup gently for --help-all 2025-08-08 11:13:12 -07:00
merge-tree.c Merge branch 'ps/commit-list-functions-renamed' 2026-02-13 13:39:25 -08:00
merge.c run-command: wean auto_maintenance() functions off the_repository 2026-03-12 08:30:57 -07:00
mktag.c fsck: store repository in fsck options 2026-03-23 08:33:10 -07:00
mktree.c builtin/mktree: remove USE_THE_REPOSITORY_VARIABLE 2026-03-12 10:03:23 -07:00
multi-pack-index.c Merge branch 'ps/object-counting' 2026-03-25 12:58:05 -07:00
mv.c environment: stop using core.sparseCheckout globally 2026-02-26 07:22:51 -08:00
name-rev.c use commit_stack instead of prio_queue in LIFO mode 2026-03-18 10:39:56 -07:00
notes.c Merge branch 'jc/strbuf-split' 2025-08-21 13:47:00 -07:00
pack-objects.c Merge branch 'tb/stdin-packs-excluded-but-open' 2026-04-06 15:42:49 -07:00
pack-redundant.c pack-redundant: fix memory leak when open_pack_index() fails 2026-02-21 21:26:53 -08:00
pack-refs.c builtin/pack-refs: factor out core logic into a shared library 2025-09-19 10:02:55 -07:00
patch-id.c patch-id: use “patch ID” throughout 2026-01-09 06:07:21 -08:00
prune-packed.c
prune.c Merge branch 'ps/object-file-wo-the-repository' 2025-08-05 11:53:55 -07:00
pull.c run-command: wean start_command() off the_repository 2026-03-12 08:30:57 -07:00
push.c environment: move "branch.autoSetupMerge" into `struct repo_config_values` 2026-02-26 07:22:53 -08:00
range-diff.c Merge branch 'kh/format-patch-range-diff-notes' 2025-10-14 12:56:09 -07:00
read-tree.c cocci: convert parse_tree functions to repo_ variants 2026-01-09 18:36:18 -08:00
rebase.c use strvec_pushv() to add another strvec 2026-03-24 12:26:58 -07:00
receive-pack.c Merge branch 'jk/c23-const-preserving-fixes-more' 2026-04-09 11:21:59 -07:00
reflog.c Merge branch 'ps/reflog-migrate-fixes' into maint-2.51 2025-10-15 10:29:28 -07:00
refs.c fsck: store repository in fsck options 2026-03-23 08:33:10 -07:00
remote-ext.c
remote-fd.c
remote.c odb: rename `odb_has_object()` flags 2026-03-31 20:43:14 -07:00
repack.c repack: mark non-MIDX packs above the split as excluded-open 2026-03-27 13:40:40 -07:00
replace.c refs: introduce wrapper struct for `each_ref_fn` 2025-11-04 07:32:24 -08:00
replay.c replay: allow to specify a ref with option --ref 2026-04-01 21:34:25 -07:00
repo.c repo: show subcommand-specific help text 2026-03-25 10:35:27 -07:00
rerere.c config: drop `git_config()` wrapper 2025-07-23 08:15:18 -07:00
reset.c add-patch: allow disabling editing of hunks 2026-03-03 15:09:36 -08:00
rev-list.c rev-list: use reduce_heads() for --maximal-only 2026-04-06 12:02:30 -07:00
rev-parse.c rev-parse: avoid writing to const string for parent marks 2026-03-26 12:47:17 -07:00
revert.c Merge branch 'pw/3.0-commentchar-auto-deprecation' 2025-09-18 10:07:00 -07:00
rm.c config: move Git config parsing into "environment.c" 2025-07-23 08:15:22 -07:00
send-pack.c config: move Git config parsing into "environment.c" 2025-07-23 08:15:22 -07:00
shortlog.c mailmap: stop using the_repository 2026-02-20 08:13:58 -08:00
show-branch.c commit: rename `free_commit_list()` to conform to coding guidelines 2026-01-15 05:32:31 -08:00
show-index.c show-index: use gettext wrapping in user facing error messages 2026-01-30 08:58:12 -08:00
show-ref.c odb: rename `odb_has_object()` flags 2026-03-31 20:43:14 -07:00
sparse-checkout.c Merge branch 'ob/core-attributesfile-in-repository' 2026-03-05 10:04:49 -08:00
stash.c docs: fix "git stash [push]" documentation 2026-03-30 08:19:40 -07:00
stripspace.c config: drop `git_config()` wrapper 2025-07-23 08:15:18 -07:00
submodule--helper.c Merge branch 'ps/object-counting' 2026-03-25 12:58:05 -07:00
symbolic-ref.c config: move Git config parsing into "environment.c" 2025-07-23 08:15:22 -07:00
tag.c Merge branch 'jt/fast-import-sign-again' 2026-03-24 12:31:31 -07:00
unpack-file.c config: move Git config parsing into "environment.c" 2025-07-23 08:15:22 -07:00
unpack-objects.c Merge branch 'ps/odb-cleanup' 2026-04-08 10:19:17 -07:00
update-index.c odb: add transaction interface 2025-09-16 11:37:06 -07:00
update-ref.c update-ref: utilize rejected error details if available 2026-01-25 22:27:33 -08:00
update-server-info.c config: move Git config parsing into "environment.c" 2025-07-23 08:15:22 -07:00
upload-archive.c path: move `enter_repo()` into "setup.c" 2025-11-19 17:41:03 -08:00
upload-pack.c path: move `enter_repo()` into "setup.c" 2025-11-19 17:41:03 -08:00
var.c Merge branch 'jc/string-list-split' 2025-08-21 13:46:59 -07:00
verify-commit.c config: move Git config parsing into "environment.c" 2025-07-23 08:15:22 -07:00
verify-pack.c config: move Git config parsing into "environment.c" 2025-07-23 08:15:22 -07:00
verify-tag.c tag: support arbitrary repositories in gpg_verify_tag() 2025-12-29 22:02:53 +09:00
worktree.c Merge branch 'pw/worktree-reduce-the-repository' 2026-04-03 13:01:09 -07:00
write-tree.c config: move Git config parsing into "environment.c" 2025-07-23 08:15:22 -07:00