diff options
| -rw-r--r-- | combine-diff.c | 43 | ||||
| -rwxr-xr-x | t/t4064-diff-oidfind.sh | 55 |
2 files changed, 96 insertions, 2 deletions
diff --git a/combine-diff.c b/combine-diff.c index 002e0e5438..23bca28746 100644 --- a/combine-diff.c +++ b/combine-diff.c @@ -1451,6 +1451,42 @@ static struct combine_diff_path *find_paths_multitree( return paths_head.next; } +static int match_objfind(struct combine_diff_path *path, + int num_parent, + const struct oidset *set) +{ + int i; + if (oidset_contains(set, &path->oid)) + return 1; + for (i = 0; i < num_parent; i++) { + if (oidset_contains(set, &path->parent[i].oid)) + return 1; + } + return 0; +} + +static struct combine_diff_path *combined_objfind(struct diff_options *opt, + struct combine_diff_path *paths, + int num_parent) +{ + struct combine_diff_path *ret = NULL, **tail = &ret; + struct combine_diff_path *p = paths; + + while (p) { + struct combine_diff_path *next = p->next; + + if (match_objfind(p, num_parent, opt->objfind)) { + p->next = NULL; + *tail = p; + tail = &p->next; + } else { + free(p); + } + p = next; + } + + return ret; +} void diff_tree_combined(const struct object_id *oid, const struct oid_array *parents, @@ -1506,10 +1542,10 @@ void diff_tree_combined(const struct object_id *oid, opt->flags.follow_renames || opt->break_opt != -1 || opt->detect_rename || - (opt->pickaxe_opts & DIFF_PICKAXE_KINDS_MASK) || + (opt->pickaxe_opts & + (DIFF_PICKAXE_KINDS_MASK & ~DIFF_PICKAXE_KIND_OBJFIND)) || opt->filter; - if (need_generic_pathscan) { /* * NOTE generic case also handles --stat, as it computes @@ -1523,6 +1559,9 @@ void diff_tree_combined(const struct object_id *oid, int stat_opt; paths = find_paths_multitree(oid, parents, &diffopts); + if (opt->pickaxe_opts & DIFF_PICKAXE_KIND_OBJFIND) + paths = combined_objfind(opt, paths, num_parent); + /* * show stat against the first parent even * when doing combined diff. diff --git a/t/t4064-diff-oidfind.sh b/t/t4064-diff-oidfind.sh index 3bdf317af8..6d8c8986fc 100755 --- a/t/t4064-diff-oidfind.sh +++ b/t/t4064-diff-oidfind.sh @@ -65,4 +65,59 @@ test_expect_success 'find a submodule' ' test_cmp expect actual ' +test_expect_success 'set up merge tests' ' + test_commit base && + + git checkout -b boring base^ && + echo boring >file && + git add file && + git commit -m boring && + + git checkout -b interesting base^ && + echo interesting >file && + git add file && + git commit -m interesting && + + blob=$(git rev-parse interesting:file) +' + +test_expect_success 'detect merge which introduces blob' ' + git checkout -B merge base && + git merge --no-commit boring && + echo interesting >file && + git commit -am "introduce blob" && + git diff-tree --format=%s --find-object=$blob -c --name-status HEAD >actual && + cat >expect <<-\EOF && + introduce blob + + AM file + EOF + test_cmp expect actual +' + +test_expect_success 'detect merge which removes blob' ' + git checkout -B merge interesting && + git merge --no-commit base && + echo boring >file && + git commit -am "remove blob" && + git diff-tree --format=%s --find-object=$blob -c --name-status HEAD >actual && + cat >expect <<-\EOF && + remove blob + + MA file + EOF + test_cmp expect actual +' + +test_expect_success 'do not detect merge that does not touch blob' ' + git checkout -B merge interesting && + git merge -m "untouched blob" base && + git diff-tree --format=%s --find-object=$blob -c --name-status HEAD >actual && + cat >expect <<-\EOF && + untouched blob + + EOF + test_cmp expect actual +' + test_done |