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Merge branch 'so/log-diff-merge'

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"git log" learned a new "--diff-merges=<how>" option.

* so/log-diff-merge: (32 commits)
  t4013: add tests for --diff-merges=first-parent
  doc/git-show: include --diff-merges description
  doc/rev-list-options: document --first-parent changes merges format
  doc/diff-generate-patch: mention new --diff-merges option
  doc/git-log: describe new --diff-merges options
  diff-merges: add '--diff-merges=1' as synonym for 'first-parent'
  diff-merges: add old mnemonic counterparts to --diff-merges
  diff-merges: let new options enable diff without -p
  diff-merges: do not imply -p for new options
  diff-merges: implement new values for --diff-merges
  diff-merges: make -m/-c/--cc explicitly mutually exclusive
  diff-merges: refactor opt settings into separate functions
  diff-merges: get rid of now empty diff_merges_init_revs()
  diff-merges: group diff-merge flags next to each other inside 'rev_info'
  diff-merges: split 'ignore_merges' field
  diff-merges: fix -m to properly override -c/--cc
  t4013: add tests for -m failing to override -c/--cc
  t4013: support test_expect_failure through ':failure' magic
  diff-merges: revise revs->diff flag handling
  diff-merges: handle imply -p on -c/--cc logic for log.c
  ...
This commit is contained in:
Junio C Hamano
2021-02-05 16:40:44 -08:00
parent 30b29f044a af04d8f1a5
commit aac006aa99
21 changed files with 893 additions and 116 deletions
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9
builtin/diff.c
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@ -13,6 +13,7 @@
#include "blob.h"
#include "tag.h"
#include "diff.h"
#include "diff-merges.h"
#include "diffcore.h"
#include "revision.h"
#include "log-tree.h"
@ -216,8 +217,8 @@ static int builtin_diff_combined(struct rev_info *revs,
if (argc > 1)
usage(builtin_diff_usage);
if (!revs->dense_combined_merges && !revs->combine_merges)
revs->dense_combined_merges = revs->combine_merges = 1;
diff_merges_set_dense_combined_if_unset(revs);
for (i = 1; i < ents; i++)
oid_array_append(&parents, &ent[i].item->oid);
diff_tree_combined(&ent[0].item->oid, &parents, revs);
@ -265,9 +266,9 @@ static int builtin_diff_files(struct rev_info *revs, int argc, const char **argv
* dense one, --cc can be explicitly asked for, or just rely
* on the default).
*/
if (revs->max_count == -1 && !revs->combine_merges &&
if (revs->max_count == -1 &&
(revs->diffopt.output_format & DIFF_FORMAT_PATCH))
revs->combine_merges = revs->dense_combined_merges = 1;
diff_merges_set_dense_combined_if_unset(revs);
setup_work_tree();
if (read_cache_preload(&revs->diffopt.pathspec) < 0) {