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| author |  Junio C Hamano <gitster@pobox.com> | 2016-04-13 14:12:32 -0700 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2016-04-13 14:12:32 -0700 |
| commit | 26effb8487386e431990905d4eba7e81f1018eda (patch) | |
| tree | c0d17729b7454c9b999b82f968ba27c84561d612 | |
| parent | Merge branch 'kn/for-each-tag-branch' (diff) | |
| parent | diffcore: fix iteration order of identical files during rename detection (diff) | |
| download | tgif-26effb8487386e431990905d4eba7e81f1018eda.tar.xz | |
Merge branch 'sg/diff-multiple-identical-renames'
"git diff -M" used to work better when two originally identical
files A and B got renamed to X/A and X/B by pairing A to X/A and B
to X/B, but this was broken in the 2.0 timeframe.
* sg/diff-multiple-identical-renames:
diffcore: fix iteration order of identical files during rename detection
| -rw-r--r-- | diffcore-rename.c | 6 | ||||
| -rwxr-xr-x | t/t4001-diff-rename.sh | 11 |
2 files changed, 15 insertions, 2 deletions
diff --git a/diffcore-rename.c b/diffcore-rename.c index 3b3c1ed535..7f03eb5a04 100644 --- a/diffcore-rename.c +++ b/diffcore-rename.c @@ -340,9 +340,11 @@ static int find_exact_renames(struct diff_options *options) int i, renames = 0; struct hashmap file_table; - /* Add all sources to the hash table */ + /* Add all sources to the hash table in reverse order, because + * later on they will be retrieved in LIFO order. + */ hashmap_init(&file_table, NULL, rename_src_nr); - for (i = 0; i < rename_src_nr; i++) + for (i = rename_src_nr-1; i >= 0; i--) insert_file_table(&file_table, i, rename_src[i].p->one); /* Walk the destinations and find best source match */ diff --git a/t/t4001-diff-rename.sh b/t/t4001-diff-rename.sh index c7e58b69a9..0d1fa45d25 100755 --- a/t/t4001-diff-rename.sh +++ b/t/t4001-diff-rename.sh @@ -140,6 +140,17 @@ test_expect_success 'favour same basenames even with minor differences' ' git show HEAD:path1 | sed "s/15/16/" > subdir/path1 && git status | test_i18ngrep "renamed: .*path1 -> subdir/path1"' +test_expect_success 'two files with same basename and same content' ' + git reset --hard && + mkdir -p dir/A dir/B && + cp path1 dir/A/file && + cp path1 dir/B/file && + git add dir && + git commit -m 2 && + git mv dir other-dir && + git status | test_i18ngrep "renamed: .*dir/A/file -> other-dir/A/file" +' + test_expect_success 'setup for many rename source candidates' ' git reset --hard && for i in 0 1 2 3 4 5 6 7 8 9; |