Currently, list-objects.c incorrectly treats all root trees of commits
as USER_GIVEN. Also, it would be easier to mark objects that are
non-user-given instead of user-given, since the places in the code
where we access an object through a reference are more obvious than
the places where we access an object that was given by the user.
Resolve these two problems by introducing a flag NOT_USER_GIVEN that
marks blobs and trees that are non-user-given, replacing USER_GIVEN.
(Only blobs and trees are marked because this mark is only used when
filtering objects, and filtering of other types of objects is not
supported yet.)
This fixes a bug in that git rev-list behaved differently from git
pack-objects. pack-objects would *not* filter objects given explicitly
on the command line and rev-list would filter. This was because the two
commands used a different function to add objects to the rev_info
struct. This seems to have been an oversight, and pack-objects has the
correct behavior, so I added a test to make sure that rev-list now
behaves properly.
Signed-off-by: Matthew DeVore <matvore@xxxxxxxxxx>
---
list-objects.c | 31 +++++++++++++++++------------
revision.c | 1 -
revision.h | 11 ++++++++--
t/t6112-rev-list-filters-objects.sh | 12 +++++++++++
4 files changed, 39 insertions(+), 16 deletions(-)
diff --git a/list-objects.c b/list-objects.c
index 243192af5..7a1a0929d 100644
--- a/list-objects.c
+++ b/list-objects.c
@@ -53,7 +53,7 @@ static void process_blob(struct traversal_context *ctx,
pathlen = path->len;
strbuf_addstr(path, name);
- if (!(obj->flags & USER_GIVEN) && ctx->filter_fn)
+ if ((obj->flags & NOT_USER_GIVEN) && ctx->filter_fn)
r = ctx->filter_fn(LOFS_BLOB, obj,
path->buf, &path->buf[pathlen],
ctx->filter_data);
@@ -120,17 +120,19 @@ static void process_tree_contents(struct traversal_context *ctx,
continue;
}
- if (S_ISDIR(entry.mode))
- process_tree(ctx,
- lookup_tree(the_repository, entry.oid),
- base, entry.path);
+ if (S_ISDIR(entry.mode)) {
+ struct tree *t = lookup_tree(the_repository, entry.oid);
+ t->object.flags |= NOT_USER_GIVEN;
+ process_tree(ctx, t, base, entry.path);
+ }
else if (S_ISGITLINK(entry.mode))
process_gitlink(ctx, entry.oid->hash,
base, entry.path);
- else
- process_blob(ctx,
- lookup_blob(the_repository, entry.oid),
- base, entry.path);
+ else {
+ struct blob *b = lookup_blob(the_repository, entry.oid);
+ b->object.flags |= NOT_USER_GIVEN;
+ process_blob(ctx, b, base, entry.path);
+ }
}
}
@@ -171,7 +173,7 @@ static void process_tree(struct traversal_context *ctx,
}
strbuf_addstr(base, name);
- if (!(obj->flags & USER_GIVEN) && ctx->filter_fn)
+ if ((obj->flags & NOT_USER_GIVEN) && ctx->filter_fn)
r = ctx->filter_fn(LOFS_BEGIN_TREE, obj,
base->buf, &base->buf[baselen],
ctx->filter_data);
@@ -185,7 +187,7 @@ static void process_tree(struct traversal_context *ctx,
if (!failed_parse)
process_tree_contents(ctx, tree, base);
- if (!(obj->flags & USER_GIVEN) && ctx->filter_fn) {
+ if ((obj->flags & NOT_USER_GIVEN) && ctx->filter_fn) {
r = ctx->filter_fn(LOFS_END_TREE, obj,
base->buf, &base->buf[baselen],
ctx->filter_data);
@@ -301,8 +303,11 @@ static void do_traverse(struct traversal_context *ctx)
* an uninteresting boundary commit may not have its tree
* parsed yet, but we are not going to show them anyway
*/
- if (get_commit_tree(commit))
- add_pending_tree(ctx->revs, get_commit_tree(commit));
+ if (get_commit_tree(commit)) {
+ struct tree *tree = get_commit_tree(commit);
+ tree->object.flags |= NOT_USER_GIVEN;
+ add_pending_tree(ctx->revs, tree);
+ }
ctx->show_commit(commit, ctx->show_data);
if (ctx->revs->tree_blobs_in_commit_order)
diff --git a/revision.c b/revision.c
index de4dce600..72d48a17f 100644
--- a/revision.c
+++ b/revision.c
@@ -175,7 +175,6 @@ static void add_pending_object_with_path(struct rev_info *revs,
strbuf_release(&buf);
return; /* do not add the commit itself */
}
- obj->flags |= USER_GIVEN;
add_object_array_with_path(obj, name, &revs->pending, mode, path);
}
diff --git a/revision.h b/revision.h
index 5910613cb..83e164039 100644
--- a/revision.h
+++ b/revision.h
@@ -21,9 +21,16 @@
#define SYMMETRIC_LEFT (1u<<8)
#define PATCHSAME (1u<<9)
#define BOTTOM (1u<<10)
-#define USER_GIVEN (1u<<25) /* given directly by the user */
+/*
+ * Indicates object was reached by traversal. i.e. not given by user on
+ * command-line or stdin.
+ * NEEDSWORK: NOT_USER_GIVEN doesn't apply to commits because we only support
+ * filtering trees and blobs, but it may be useful to support filtering commits
+ * in the future.
+ */
+#define NOT_USER_GIVEN (1u<<25)
#define TRACK_LINEAR (1u<<26)
-#define ALL_REV_FLAGS (((1u<<11)-1) | USER_GIVEN | TRACK_LINEAR)
+#define ALL_REV_FLAGS (((1u<<11)-1) | NOT_USER_GIVEN | TRACK_LINEAR)
#define DECORATE_SHORT_REFS 1
#define DECORATE_FULL_REFS 2
diff --git a/t/t6112-rev-list-filters-objects.sh b/t/t6112-rev-list-filters-objects.sh
index c662c97db..11186209b 100755
--- a/t/t6112-rev-list-filters-objects.sh
+++ b/t/t6112-rev-list-filters-objects.sh
@@ -30,6 +30,18 @@ test_expect_success 'verify blob:none omits all 5 blobs' '
test_cmp observed expected
'
+test_expect_success 'specify blob explicitly prevents filtering' '
+ file_3=$(git -C r1 ls-files -s file.3 |
+ awk -f print_2.awk) &&
+
+ file_4=$(git -C r1 ls-files -s file.4 |
+ awk -f print_2.awk) &&
+
+ git -C r1 rev-list --objects --filter=blob:none HEAD $file_3 >observed &&
+ grep -q "$file_3" observed &&
+ test_must_fail grep -q "$file_4" observed
+'
+
test_expect_success 'verify emitted+omitted == all' '
git -C r1 rev-list HEAD --objects \
| awk -f print_1.awk \
--
2.19.0.444.g18242da7ef-goog
