checkout-index: integrate with sparse index
Add repository settings to allow usage of the sparse index.
When using the `--all` option, sparse directories are ignored by default due
to the `skip-worktree` flag, so there is no need to expand the index. If
`--ignore-skip-worktree-bits` is specified, the index is expanded in order
to check out all files.
When checking out individual files, existing behavior in a full index is to
exit with an error if a directory is specified (as the directory name will
not match an index entry). However, it is possible in a sparse index to
match a directory name to a sparse directory index entry, but checking out
that sparse directory still results in an error on checkout. To reduce some
potential confusion for users, `checkout_file(...)` explicitly exits with an
informative error if provided with a sparse directory name. The test
corresponding to this scenario verifies the error message, which now differs
between sparse index and non-sparse index checkouts.
Signed-off-by: Victoria Dye <vdye@github.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin/checkout-index.c b/builtin/checkout-index.c
index 615a118..97e06e8 100644
--- a/builtin/checkout-index.c
+++ b/builtin/checkout-index.c
@@ -67,6 +67,7 @@ static int checkout_file(const char *name, const char *prefix)
int namelen = strlen(name);
int pos = cache_name_pos(name, namelen);
int has_same_name = 0;
+ int is_file = 0;
int is_skipped = 1;
int did_checkout = 0;
int errs = 0;
@@ -81,6 +82,9 @@ static int checkout_file(const char *name, const char *prefix)
break;
has_same_name = 1;
pos++;
+ if (S_ISSPARSEDIR(ce->ce_mode))
+ break;
+ is_file = 1;
if (!ignore_skip_worktree && ce_skip_worktree(ce))
break;
is_skipped = 0;
@@ -112,6 +116,8 @@ static int checkout_file(const char *name, const char *prefix)
fprintf(stderr, "git checkout-index: %s ", name);
if (!has_same_name)
fprintf(stderr, "is not in the cache");
+ else if (!is_file)
+ fprintf(stderr, "is a sparse directory");
else if (is_skipped)
fprintf(stderr, "has skip-worktree enabled; "
"use '--ignore-skip-worktree-bits' to checkout");
@@ -130,10 +136,25 @@ static int checkout_all(const char *prefix, int prefix_length)
int i, errs = 0;
struct cache_entry *last_ce = NULL;
- /* TODO: audit for interaction with sparse-index. */
- ensure_full_index(&the_index);
for (i = 0; i < active_nr ; i++) {
struct cache_entry *ce = active_cache[i];
+
+ if (S_ISSPARSEDIR(ce->ce_mode)) {
+ if (!ce_skip_worktree(ce))
+ BUG("sparse directory '%s' does not have skip-worktree set", ce->name);
+
+ /*
+ * If the current entry is a sparse directory and skip-worktree
+ * entries are being checked out, expand the index and continue
+ * the loop on the current index position (now pointing to the
+ * first entry inside the expanded sparse directory).
+ */
+ if (ignore_skip_worktree) {
+ ensure_full_index(&the_index);
+ ce = active_cache[i];
+ }
+ }
+
if (!ignore_skip_worktree && ce_skip_worktree(ce))
continue;
if (ce_stage(ce) != checkout_stage
@@ -225,6 +246,9 @@ int cmd_checkout_index(int argc, const char **argv, const char *prefix)
git_config(git_default_config, NULL);
prefix_length = prefix ? strlen(prefix) : 0;
+ prepare_repo_settings(the_repository);
+ the_repository->settings.command_requires_full_index = 0;
+
if (read_cache() < 0) {
die("invalid cache");
}
