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Johan Herland 2085b16aef git notes merge: Handle real, non-conflicting notes merges
This continuation of the 'git notes merge' implementation teaches notes-merge
to properly do real merges between notes trees: Two diffs are performed, one
from $base to $remote, and another from $base to $local. The paths in each
diff are normalized to SHA1 object names. The two diffs are then consolidated
into a single list of change pairs to be evaluated. Each change pair consist
of:

  - The annotated object's SHA1
  - The $base SHA1 (i.e. the common ancestor notes for this object)
  - The $local SHA1 (i.e. the current notes for this object)
  - The $remote SHA1 (i.e. the to-be-merged notes for this object)

From the pair ($base -> $local, $base -> $remote), we can determine the merge
result using regular 3-way rules. If conflicts are encountered in this
process, we fail loudly and exit (conflict handling to be added in a future
patch), If we can complete the merge without conflicts, the resulting
notes tree is committed, and the current notes ref updated.

The patch includes added testcases verifying that we can successfully do real
conflict-less merges.

This patch has been improved by the following contributions:
- Jonathan Nieder: Future-proof by always checking add_note() return value
- Stephen Boyd: Use test_commit
- Jonathan Nieder: Use trace_printf(...) instead of OUTPUT(o, 5, ...)
- Junio C Hamano: fixup minor style issues

Thanks-to: Jonathan Nieder <jrnieder@gmail.com>
Thanks-to: Stephen Boyd <bebarino@gmail.com>
Thanks-to: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-17 13:21:34 -08:00
..
add.c git add: Add the "--ignore-missing" option for the dry run 2010-07-12 15:13:54 -07:00
annotate.c
apply.c Merge branch 'jp/string-list-api-cleanup' 2010-06-30 11:55:38 -07:00
archive.c
bisect--helper.c
blame.c Merge branch 'cp/textconv-cat-file' 2010-06-27 12:07:55 -07:00
branch.c Merge branch 'sm/branch-broken-ref' 2010-06-21 06:02:47 -07:00
bundle.c
cat-file.c Merge branch 'cp/textconv-cat-file' 2010-06-27 12:07:55 -07:00
check-attr.c
check-ref-format.c Allow "check-ref-format --branch" from subdirectory 2010-08-06 10:01:45 -07:00
checkout-index.c
checkout.c Merge branch 'gv/portable' 2010-06-21 06:02:44 -07:00
clean.c
clone.c Merge branch 'ph/clone-message-reword' 2010-06-18 11:16:53 -07:00
commit-tree.c
commit.c commit: remove full stop from usage help for -u 2010-07-27 09:44:17 -07:00
config.c
count-objects.c
describe.c Merge branch 'sp/maint-describe-tiebreak-with-tagger-date' into maint 2010-06-16 16:21:15 -07:00
diff-files.c
diff-index.c
diff-tree.c
diff.c Merge branch 'jc/diff-merge-base-multi' 2010-07-16 15:45:35 -07:00
fast-export.c string_list: Fix argument order for string_list_append 2010-06-27 10:06:52 -07:00
fetch-pack.c
fetch.c Clarify help message when no remote is specified in fetch/pull. 2010-07-27 09:12:23 -07:00
fmt-merge-msg.c Merge branch 'jp/string-list-api-cleanup' 2010-06-30 11:55:38 -07:00
for-each-ref.c Merge branch 'maint' 2010-06-07 22:15:31 -07:00
fsck.c
gc.c
grep.c Merge branch 'jn/grep-open' 2010-07-15 12:07:18 -07:00
hash-object.c
help.c Cast execl*() NULL sentinels to (char *) 2010-07-25 23:14:18 -07:00
index-pack.c Merge branch 'np/index-pack-memsave' into maint 2010-06-16 16:22:23 -07:00
init-db.c
log.c Merge branch 'ar/decorate-color' 2010-06-30 11:55:40 -07:00
ls-files.c Merge branch 'jp/string-list-api-cleanup' 2010-06-30 11:55:38 -07:00
ls-remote.c
ls-tree.c
mailinfo.c enums: omit trailing comma for portability 2010-05-31 16:59:27 -07:00
mailsplit.c string_list: Fix argument order for string_list_insert 2010-06-27 10:06:51 -07:00
merge-base.c
merge-file.c Merge branch 'rs/diff-no-minimal' into maint 2010-06-21 05:38:50 -07:00
merge-index.c
merge-ours.c
merge-recursive.c
merge-tree.c merge-tree: fix where two branches share no changes 2010-07-14 12:56:49 -07:00
merge.c Merge branch 'tc/merge-m-log' 2010-06-18 11:16:54 -07:00
mktag.c
mktree.c
mv.c string_list: Fix argument order for string_list_insert 2010-06-27 10:06:51 -07:00
name-rev.c
notes.c git notes merge: Handle real, non-conflicting notes merges 2010-11-17 13:21:34 -08:00
pack-objects.c Merge branch 'np/malloc-threading' into maint 2010-06-16 16:21:06 -07:00
pack-redundant.c
pack-refs.c
patch-id.c
prune-packed.c
prune.c
push.c
read-tree.c Merge remote branch 'ko/master' into jc/read-tree-cache-tree-fix 2010-07-08 18:55:50 -07:00
receive-pack.c Merge branch 'tr/receive-pack-aliased-update-fix' into maint 2010-07-07 10:25:15 -07:00
reflog.c Merge branch 'jc/maint-no-reflog-expire-unreach-for-head' 2010-05-21 04:02:18 -07:00
remote.c Merge branch 'jp/string-list-api-cleanup' 2010-06-30 11:55:38 -07:00
replace.c
rerere.c Merge branch 'js/merge-rr-fix' 2010-07-15 12:08:36 -07:00
reset.c
rev-list.c rev-list: introduce --count option 2010-06-12 09:39:06 -07:00
rev-parse.c Merge branch 'maint' 2010-07-07 11:18:26 -07:00
revert.c revert: do not rebuild argv on heap 2010-06-29 10:36:13 -07:00
rm.c
send-pack.c
shortlog.c string_list: Fix argument order for string_list_append 2010-06-27 10:06:52 -07:00
show-branch.c show-branch: use DEFAULT_ABBREV instead of 7 2010-05-25 09:48:49 -07:00
show-ref.c string_list: Fix argument order for string_list_insert 2010-06-27 10:06:51 -07:00
stripspace.c
symbolic-ref.c
tag.c
tar-tree.c
unpack-file.c
unpack-objects.c
update-index.c
update-ref.c
update-server-info.c
upload-archive.c
var.c
verify-pack.c
verify-tag.c
write-tree.c