[PATCH 6/8] Make rev-list --objects work together with pathspecs
From: Nguyễn Thái Ngọc Duy <hidden>
Date: 2016-06-15 22:49:31
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Elijah Newren <redacted> When traversing commits, the selection of commits would heed the list of pathspecs passed, but subsequent walking of the trees of those commits would not. This resulted in 'rev-list --objects HEAD -- <paths>' displaying objects at unwanted paths. Have process_tree() call tree_entry_interesting() to determine which paths are interesting and should be walked. Naturally, this change can provide a large speedup when paths are specified together with --objects, since many tree entries are now correctly ignored. Interestingly, though, this change also gives me a small (~1%) but repeatable speedup even when no paths are specified with --objects. Signed-off-by: Elijah Newren <redacted> Signed-off-by: Junio C Hamano <redacted> Signed-off-by: Nguyễn Thái Ngọc Duy <redacted> --- list-objects.c | 23 +++++++++++++++++++++++ revision.c | 8 ++++++-- revision.h | 3 ++- t/t6000-rev-list-misc.sh | 6 +++--- 4 files changed, 34 insertions(+), 6 deletions(-)
diff --git a/list-objects.c b/list-objects.c
index 8953548..be4cf9f 100644
--- a/list-objects.c
+++ b/list-objects.c@@ -67,6 +67,9 @@ static void process_tree(struct rev_info *revs, struct tree_desc desc; struct name_entry entry; struct name_path me; + int all_interesting = (revs->diffopt.pathspec.nr == 0); + char *full_prefix = NULL; + int full_prefix_len = 0; if (!revs->tree_objects) return;
@@ -82,9 +85,28 @@ static void process_tree(struct rev_info *revs, me.elem = name; me.elem_len = strlen(name); + if (!all_interesting) { + full_prefix = path_name_impl(path, name, 1); + full_prefix_len = strlen(full_prefix); + } + init_tree_desc(&desc, tree->buffer, tree->size); while (tree_entry(&desc, &entry)) { + if (!all_interesting) { + int showit = tree_entry_interesting(&entry, + full_prefix, + full_prefix_len, + &revs->diffopt.pathspec); + + if (showit < 0) + break; + else if (!showit) + continue; + else if (showit == 2) + all_interesting = 1; + } + if (S_ISDIR(entry.mode)) process_tree(revs, lookup_tree(entry.sha1),
@@ -97,6 +119,7 @@ static void process_tree(struct rev_info *revs, lookup_blob(entry.sha1), show, &me, entry.path); } + free(full_prefix); free(tree->buffer); tree->buffer = NULL; }
diff --git a/revision.c b/revision.c
index b2a5867..4d7dc4b 100644
--- a/revision.c
+++ b/revision.c@@ -16,7 +16,7 @@ volatile show_early_output_fn_t show_early_output; -char *path_name(const struct name_path *path, const char *name) +char *path_name_impl(const struct name_path *path, const char *name, int isdir) { const struct name_path *p; char *n, *m;
@@ -27,7 +27,7 @@ char *path_name(const struct name_path *path, const char *name) if (p->elem_len) len += p->elem_len + 1; } - n = xmalloc(len); + n = xmalloc(len + !!isdir); m = n + len - (nlen + 1); strcpy(m, name); for (p = path; p; p = p->up) {
@@ -37,6 +37,10 @@ char *path_name(const struct name_path *path, const char *name) m[p->elem_len] = '/'; } } + if (isdir && len > 1) { + n[len-1] = '/'; + n[len] = '\0'; + } return n; }
diff --git a/revision.h b/revision.h
index 05659c6..92f4feb 100644
--- a/revision.h
+++ b/revision.h@@ -173,7 +173,8 @@ struct name_path { const char *elem; }; -char *path_name(const struct name_path *path, const char *name); +char *path_name_impl(const struct name_path *path, const char *name, int isdir); +#define path_name(path, name) path_name_impl(path, name, 0) extern void add_object(struct object *obj, struct object_array *p,
diff --git a/t/t6000-rev-list-misc.sh b/t/t6000-rev-list-misc.sh
index b3c1dd8..b10685a 100755
--- a/t/t6000-rev-list-misc.sh
+++ b/t/t6000-rev-list-misc.sh@@ -11,13 +11,13 @@ test_expect_success setup ' git commit -m one ' -test_expect_failure 'rev-list --objects heeds pathspecs' ' +test_expect_success 'rev-list --objects heeds pathspecs' ' git rev-list --objects HEAD -- wanted_file >output && grep wanted_file output && ! grep unwanted_file output ' -test_expect_failure 'rev-list --objects with pathspecs and deeper paths' ' +test_expect_success 'rev-list --objects with pathspecs and deeper paths' ' mkdir foo && >foo/file && git add foo/file &&
@@ -31,7 +31,7 @@ test_expect_failure 'rev-list --objects with pathspecs and deeper paths' ' ! grep unwanted_file output ' -test_expect_failure 'rev-list --objects with pathspecs and copied files' ' +test_expect_success 'rev-list --objects with pathspecs and copied files' ' git checkout --orphan junio-testcase && git rm -rf . &&
--
1.7.1.rc1.70.g13aff