git-commit-vandalism/builtin
Elijah Newren e4cdfe84a0 merge: abort if index does not match HEAD for trivial merges
As noted in the last commit and the links therein (especially commit
9822175d2b ("Ensure index matches head before invoking merge machinery,
round N", 2019-08-17), we have had a very long history of problems with
failing to enforce the requirement that index matches HEAD when starting
a merge.

The "trivial merge" logic in builtin/merge.c is yet another such case
we previously missed.  Add a check for it to ensure it aborts if the
index does not match HEAD, and add a testcase where this fix is needed.

Note that the fix here would also incidentally be an alternative fix
for the testcase added in the last patch, but the fix in the last patch
is still needed when multiple merge strategies are in use, so tweak the
testcase from the previous commit so that it continues to exercise the
codepath added in the last commit.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-07-22 21:45:23 -07:00
..
add.c Merge branch 'ab/plug-leak-in-revisions' 2022-06-07 14:10:56 -07:00
am.c revisions API users: add straightforward release_revisions() 2022-04-13 23:56:08 -07:00
annotate.c
apply.c apply.c: remove unnecessary include 2022-04-06 09:42:14 -07:00
archive.c use xopen() to handle fatal open(2) failures 2021-08-25 14:39:08 -07:00
bisect--helper.c Merge branch 'ab/plug-leak-in-revisions' 2022-06-07 14:10:56 -07:00
blame.c Merge branch 'ab/plug-leak-in-revisions' 2022-06-07 14:10:56 -07:00
branch.c branch: drop unused worktrees variable 2022-06-21 08:52:37 -07:00
bugreport.c hook-list.h: add a generated list of hooks, like config-list.h 2021-09-27 09:44:54 -07:00
bundle.c bundle: call strvec_clear() on allocated strvec 2022-03-04 13:24:18 -08:00
cat-file.c cat-file: fix a common "struct object_context" memory leak 2022-07-01 11:43:43 -07:00
check-attr.c
check-ignore.c dir.[ch]: replace dir_init() with DIR_INIT 2021-07-01 12:32:22 -07:00
check-mailmap.c
check-ref-format.c check-ref-format: fix trivial memory leak 2022-07-01 11:43:42 -07:00
checkout--worker.c pkt-line.[ch]: remove unused packet_read_line_buf() 2021-10-15 13:09:40 -07:00
checkout-index.c checkout-index: integrate with sparse index 2022-01-13 13:49:45 -08:00
checkout.c checkout: avoid "struct unpack_trees_options" leak 2022-07-01 11:43:43 -07:00
clean.c Merge branch 'vd/sparse-clean-etc' 2022-02-17 16:25:05 -08:00
clone.c Merge branch 'jk/clone-unborn-confusion' 2022-07-19 16:40:17 -07:00
column.c column: fix parsing of the '--nl' option 2021-08-26 14:36:27 -07:00
commit-graph.c commit-graph: fix memory leak in misused string_list API 2022-03-04 13:24:18 -08:00
commit-tree.c use xopen() to handle fatal open(2) failures 2021-08-25 14:39:08 -07:00
commit.c Merge branch 'ab/plug-leak-in-revisions' 2022-06-07 14:10:56 -07:00
config.c Merge branch 'mf/fix-type-in-config-h' 2022-03-16 17:53:07 -07:00
count-objects.c i18n: remove from i18n strings that do not hold translatable parts 2022-02-04 13:58:28 -08:00
credential-cache--daemon.c
credential-cache.c credential-cache: check for windows specific errors 2021-09-14 09:30:54 -07:00
credential-store.c Use a better name for the function interpolating paths 2021-07-26 12:17:16 -07:00
credential.c doc: fix git credential synopsis 2021-10-28 09:57:09 -07:00
describe.c revisions API users: add straightforward release_revisions() 2022-04-13 23:56:08 -07:00
diff-files.c diff-files: move misplaced cleanup label 2022-07-12 07:17:28 -07:00
diff-index.c revisions API: call diff_free(&revs->pruning) in revisions_release() 2022-04-13 23:56:10 -07:00
diff-tree.c 2.36 gitk/diff-tree --stdin regression fix 2022-04-26 09:26:35 -07:00
diff.c Merge branch 'ab/plug-leak-in-revisions' 2022-06-07 14:10:56 -07:00
difftool.c run-command API: rename "env_array" to "env" 2022-06-02 14:31:16 -07:00
env--helper.c
fast-export.c Merge branch 'ab/plug-leak-in-revisions' 2022-06-07 14:10:56 -07:00
fast-import.c i18n: fix mismatched camelCase config variables 2022-06-17 10:38:26 -07:00
fetch-pack.c Merge branch 'rc/fetch-refetch' 2022-04-04 10:56:23 -07:00
fetch.c Merge branch 'ab/cocci-unused' 2022-07-18 13:31:57 -07:00
fmt-merge-msg.c merge: allow to pretend a merge is made into a different branch 2021-12-20 14:55:02 -08:00
for-each-ref.c for-each-ref: delay parsing of --sort=<atom> options 2021-10-20 14:33:07 -07:00
for-each-repo.c builtin/for-each-repo: remove unnecessary argv copy to plug leak 2021-07-26 12:19:20 -07:00
fsck.c fsck: do not dereference NULL while checking resolve-undo data 2022-07-11 16:26:33 -07:00
fsmonitor--daemon.c fsmonitor--daemon: stub in health thread 2022-05-26 15:59:27 -07:00
gc.c gc: fix a memory leak 2022-07-01 11:43:43 -07:00
get-tar-commit-id.c
grep.c grep: add --max-count command line option 2022-06-22 13:23:29 -07:00
hash-object.c Merge branch 'ab/object-file-api-updates' 2022-03-16 17:53:08 -07:00
help.c Merge branch 'ab/help-fixes' 2022-03-09 13:38:24 -08:00
hook.c git hook run: add an --ignore-missing flag 2022-01-07 15:19:34 -08:00
index-pack.c i18n: fix mismatched camelCase config variables 2022-06-17 10:38:26 -07:00
init-db.c i18n: refactor "foo and bar are mutually exclusive" 2022-01-05 13:29:23 -08:00
interpret-trailers.c
log.c Merge branch 'ab/plug-leak-in-revisions' 2022-06-07 14:10:56 -07:00
ls-files.c ls-files: support --recurse-submodules --stage 2022-02-23 16:41:55 -08:00
ls-remote.c Merge branch 'ep/maint-equals-null-cocci' 2022-05-20 15:26:59 -07:00
ls-tree.c Merge branch 'tl/ls-tree-oid-only' 2022-04-06 15:21:59 -07:00
mailinfo.c mailinfo: allow squelching quoted CRLF warning 2021-05-10 15:06:22 +09:00
mailsplit.c Merge branch 'ep/maint-equals-null-cocci' 2022-05-20 15:26:59 -07:00
merge-base.c merge-base: free() allocated "struct commit **" list 2022-03-04 13:24:17 -08:00
merge-file.c merge-file: fix memory leaks on error path 2022-07-01 11:43:43 -07:00
merge-index.c merge-index: ensure full index 2021-04-14 13:47:21 -07:00
merge-ours.c builtins + test helpers: use return instead of exit() in cmd_* 2021-06-09 09:15:58 +09:00
merge-recursive.c gettext API users: don't explicitly cast ngettext()'s "n" 2022-03-07 11:57:52 -08:00
merge-tree.c merge-tree: add a --allow-unrelated-histories flag 2022-06-22 16:10:06 -07:00
merge.c merge: abort if index does not match HEAD for trivial merges 2022-07-22 21:45:23 -07:00
mktag.c Merge branch 'ab/object-file-api-updates' 2022-03-16 17:53:08 -07:00
mktree.c mktree: do not check type of remote objects 2022-06-21 10:12:15 -07:00
multi-pack-index.c multi-pack-index: simplify handling of unknown --options 2022-07-10 14:53:48 -07:00
mv.c Merge branch 'jc/builtin-mv-move-array' 2022-07-18 13:31:53 -07:00
name-rev.c name-rev: prefix annotate-stdin with '--' in message 2022-06-20 16:20:45 -07:00
notes.c Merge branch 'ab/object-file-api-updates' 2022-03-16 17:53:08 -07:00
pack-objects.c i18n: fix mismatched camelCase config variables 2022-06-17 10:38:26 -07:00
pack-redundant.c tree-wide: apply equals-null.cocci 2022-05-02 09:50:37 -07:00
pack-refs.c
patch-id.c patch-id: fix scan_hunk_header on diffs with 1 line of before/after 2022-02-02 11:24:23 -08:00
prune-packed.c i18n: remove from i18n strings that do not hold translatable parts 2022-02-04 13:58:28 -08:00
prune.c revisions API users: add straightforward release_revisions() 2022-04-13 23:56:08 -07:00
pull.c pull: fix a "struct oid_array" memory leak 2022-07-01 11:43:43 -07:00
push.c push: fix capitalisation of the option name autoSetupMerge 2022-06-15 11:45:46 -07:00
range-diff.c
read-tree.c read-tree: make three-way merge sparse-aware 2022-03-01 12:36:01 -08:00
rebase.c builtin/rebase: remove a redundant space in l10n string 2022-06-16 11:15:23 -07:00
receive-pack.c Merge branch 'ab/bug-if-bug' 2022-06-10 15:04:15 -07:00
reflog.c Merge branch 'ab/plug-leak-in-revisions' 2022-06-07 14:10:56 -07:00
remote-ext.c
remote-fd.c
remote.c remote: handle negative refspecs in git remote show 2022-06-17 10:03:59 -07:00
repack.c cocci: generalize "unused" rule to cover more than "strbuf" 2022-07-06 12:24:43 -07:00
replace.c Merge branch 'ep/maint-equals-null-cocci' 2022-05-20 15:26:59 -07:00
rerere.c xdiff users: use designated initializers for out_line 2021-05-11 12:47:31 +09:00
reset.c reset: show --no-refresh in the short-help 2022-03-24 13:36:21 -07:00
rev-list.c revisions API users: add "goto cleanup" for release_revisions() 2022-04-13 23:56:09 -07:00
rev-parse.c Merge branch 'ep/maint-equals-null-cocci' 2022-05-20 15:26:59 -07:00
revert.c revert: free "struct replay_opts" members 2022-07-01 11:43:42 -07:00
rm.c Merge branch 'ja/i18n-similar-messages' 2022-01-10 11:52:56 -08:00
send-pack.c i18n: factorize "invalid value" messages 2022-02-04 13:58:28 -08:00
shortlog.c Merge branch 'ep/maint-equals-null-cocci' 2022-05-20 15:26:59 -07:00
show-branch.c Merge branch 'jc/show-branch-g-current' into maint 2022-06-08 14:27:51 -07:00
show-index.c builtin/show-index: set the algorithm for object IDs 2021-04-27 16:31:39 +09:00
show-ref.c builtin/show-ref.c: avoid over-iterating with --heads, --tags 2022-06-06 09:56:42 -07:00
sparse-checkout.c Merge branch 'ds/sparse-sparse-checkout' 2022-06-03 14:30:35 -07:00
stash.c Merge branch 'ab/env-array' 2022-06-10 15:04:13 -07:00
stripspace.c i18n: remove from i18n strings that do not hold translatable parts 2022-02-04 13:58:28 -08:00
submodule--helper.c Merge branch 'ab/submodule-cleanup' 2022-07-14 15:04:00 -07:00
symbolic-ref.c
tag.c Merge branch 'ep/maint-equals-null-cocci' 2022-05-20 15:26:59 -07:00
unpack-file.c
unpack-objects.c unpack-objects: use stream_loose_object() to unpack large objects 2022-06-13 10:22:36 -07:00
update-index.c Merge branch 'jh/builtin-fsmonitor-part3' 2022-06-10 15:04:15 -07:00
update-ref.c update-ref: fix streaming of status updates 2021-09-03 11:35:15 -07:00
update-server-info.c i18n: remove from i18n strings that do not hold translatable parts 2022-02-04 13:58:28 -08:00
upload-archive.c upload-archive: use regular "struct child_process" pattern 2021-11-25 22:15:07 -08:00
upload-pack.c upload-pack: document and rename --advertise-refs 2021-08-05 08:59:37 -07:00
var.c var: add GIT_DEFAULT_BRANCH variable 2021-11-03 13:25:36 -07:00
verify-commit.c
verify-pack.c
verify-tag.c
worktree.c run-command API: rename "env_array" to "env" 2022-06-02 14:31:16 -07:00
write-tree.c