From: Derrick Stolee <dstolee@xxxxxxxxxxxxx>
As we integrate the sparse index into more builtins, we occasionally
need to check the sparse-checkout patterns to see if a path is within
the sparse-checkout cone. Create some helper methods that help
initialize the patterns and check for pattern matching to make this
easier.
The existing callers of commands like get_sparse_checkout_patterns() use
a custom 'struct pattern_list' that is not necessarily the one in the
'struct index_state', so there are not many previous uses that could
adopt these helpers. There are just two in builtin/add.c and
sparse-index.c that can use path_in_sparse_checkout().
We add a path_in_cone_mode_sparse_checkout() as well that will only
return false if the path is outside of the sparse-checkout definition
_and_ the sparse-checkout patterns are in cone mode.
Signed-off-by: Derrick Stolee <dstolee@xxxxxxxxxxxxx>
---
builtin/add.c | 7 +------
dir.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++
dir.h | 8 ++++++++
sparse-index.c | 14 +++-----------
4 files changed, 64 insertions(+), 17 deletions(-)
diff --git a/builtin/add.c b/builtin/add.c
index 17528e8f922..88a6c0c69fb 100644
--- a/builtin/add.c
+++ b/builtin/add.c
@@ -190,8 +190,6 @@ static int refresh(int verbose, const struct pathspec *pathspec)
struct string_list only_match_skip_worktree = STRING_LIST_INIT_NODUP;
int flags = REFRESH_IGNORE_SKIP_WORKTREE |
(verbose ? REFRESH_IN_PORCELAIN : REFRESH_QUIET);
- struct pattern_list pl = { 0 };
- int sparse_checkout_enabled = !get_sparse_checkout_patterns(&pl);
seen = xcalloc(pathspec->nr, 1);
refresh_index(&the_index, flags, pathspec, seen,
@@ -199,12 +197,9 @@ static int refresh(int verbose, const struct pathspec *pathspec)
for (i = 0; i < pathspec->nr; i++) {
if (!seen[i]) {
const char *path = pathspec->items[i].original;
- int dtype = DT_REG;
if (matches_skip_worktree(pathspec, i, &skip_worktree_seen) ||
- (sparse_checkout_enabled &&
- !path_matches_pattern_list(path, strlen(path), NULL,
- &dtype, &pl, &the_index))) {
+ !path_in_sparse_checkout(path, &the_index)) {
string_list_append(&only_match_skip_worktree,
pathspec->items[i].original);
} else {
diff --git a/dir.c b/dir.c
index 03c4d212672..86afa2eae00 100644
--- a/dir.c
+++ b/dir.c
@@ -1439,6 +1439,58 @@ done:
return result;
}
+int init_sparse_checkout_patterns(struct index_state *istate)
+{
+ if (!core_apply_sparse_checkout)
+ return 1;
+ if (istate->sparse_checkout_patterns)
+ return 0;
+
+ CALLOC_ARRAY(istate->sparse_checkout_patterns, 1);
+
+ if (get_sparse_checkout_patterns(istate->sparse_checkout_patterns) < 0) {
+ FREE_AND_NULL(istate->sparse_checkout_patterns);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int path_in_sparse_checkout_1(const char *path,
+ struct index_state *istate,
+ int require_cone_mode)
+{
+ const char *base;
+ int dtype = DT_REG;
+
+ /*
+ * We default to accepting a path if there are no patterns or
+ * they are of the wrong type.
+ */
+ if (init_sparse_checkout_patterns(istate) ||
+ (require_cone_mode &&
+ !istate->sparse_checkout_patterns->use_cone_patterns))
+ return 1;
+
+ base = strrchr(path, '/');
+ return path_matches_pattern_list(path, strlen(path), base ? base + 1 : path,
+ &dtype,
+ istate->sparse_checkout_patterns,
+ istate) > 0;
+}
+
+int path_in_sparse_checkout(const char *path,
+ struct index_state *istate)
+{
+ return path_in_sparse_checkout_1(path, istate, 0);
+}
+
+int path_in_cone_mode_sparse_checkout(const char *path,
+ struct index_state *istate)
+{
+ return path_in_sparse_checkout_1(path, istate, 1);
+}
+
static struct path_pattern *last_matching_pattern_from_lists(
struct dir_struct *dir, struct index_state *istate,
const char *pathname, int pathlen,
diff --git a/dir.h b/dir.h
index b3e1a54a971..6823312521e 100644
--- a/dir.h
+++ b/dir.h
@@ -394,6 +394,14 @@ enum pattern_match_result path_matches_pattern_list(const char *pathname,
const char *basename, int *dtype,
struct pattern_list *pl,
struct index_state *istate);
+
+int init_sparse_checkout_patterns(struct index_state *state);
+
+int path_in_sparse_checkout(const char *path,
+ struct index_state *istate);
+int path_in_cone_mode_sparse_checkout(const char *path,
+ struct index_state *istate);
+
struct dir_entry *dir_add_ignored(struct dir_struct *dir,
struct index_state *istate,
const char *pathname, int len);
diff --git a/sparse-index.c b/sparse-index.c
index 880c5f72338..23f7c3bd361 100644
--- a/sparse-index.c
+++ b/sparse-index.c
@@ -33,19 +33,14 @@ static int convert_to_sparse_rec(struct index_state *istate,
{
int i, can_convert = 1;
int start_converted = num_converted;
- enum pattern_match_result match;
- int dtype = DT_UNKNOWN;
struct strbuf child_path = STRBUF_INIT;
- struct pattern_list *pl = istate->sparse_checkout_patterns;
/*
* Is the current path outside of the sparse cone?
* Then check if the region can be replaced by a sparse
* directory entry (everything is sparse and merged).
*/
- match = path_matches_pattern_list(ct_path, ct_pathlen,
- NULL, &dtype, pl, istate);
- if (match != NOT_MATCHED)
+ if (path_in_sparse_checkout(ct_path, istate))
can_convert = 0;
for (i = start; can_convert && i < end; i++) {
@@ -152,11 +147,8 @@ int convert_to_sparse(struct index_state *istate)
if (!istate->repo->settings.sparse_index)
return 0;
- if (!istate->sparse_checkout_patterns) {
- istate->sparse_checkout_patterns = xcalloc(1, sizeof(struct pattern_list));
- if (get_sparse_checkout_patterns(istate->sparse_checkout_patterns) < 0)
- return 0;
- }
+ if (init_sparse_checkout_patterns(istate))
+ return 0;
/*
* We need cone-mode patterns to use sparse-index. If a user edits
--
gitgitgadget
