sparse-checkout: load sparse-checkout patterns

A future feature will want to load the sparse-checkout patterns into a
pattern_list, but the current mechanism to do so is a bit complicated.
This is made difficult due to needing to find the sparse-checkout file
in different ways throughout the codebase.

The logic implemented in the new get_sparse_checkout_patterns() was
duplicated in populate_from_existing_patterns() in unpack-trees.c. Use
the new method instead, keeping the logic around handling the struct
unpack_trees_options.

The callers to get_sparse_checkout_filename() in
builtin/sparse-checkout.c manipulate the sparse-checkout file directly,
so it is not appropriate to replace logic in that file with
get_sparse_checkout_patterns().

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Derrick Stolee 2021-01-23 19:58:17 +00:00 committed by Junio C Hamano
parent 6a9372f4ef
commit dd23022acb
4 changed files with 20 additions and 10 deletions

View File

@ -22,11 +22,6 @@ static char const * const builtin_sparse_checkout_usage[] = {
NULL
};
static char *get_sparse_checkout_filename(void)
{
return git_pathdup("info/sparse-checkout");
}
static void write_patterns_to_file(FILE *fp, struct pattern_list *pl)
{
int i;

17
dir.c
View File

@ -2998,6 +2998,23 @@ void setup_standard_excludes(struct dir_struct *dir)
}
}
char *get_sparse_checkout_filename(void)
{
return git_pathdup("info/sparse-checkout");
}
int get_sparse_checkout_patterns(struct pattern_list *pl)
{
int res;
char *sparse_filename = get_sparse_checkout_filename();
pl->use_cone_patterns = core_sparse_checkout_cone;
res = add_patterns_from_file_to_list(sparse_filename, "", 0, pl, NULL);
free(sparse_filename);
return res;
}
int remove_path(const char *name)
{
char *slash;

2
dir.h
View File

@ -448,6 +448,8 @@ int is_empty_dir(const char *dir);
void setup_standard_excludes(struct dir_struct *dir);
char *get_sparse_checkout_filename(void);
int get_sparse_checkout_patterns(struct pattern_list *pl);
/* Constants for remove_dir_recursively: */

View File

@ -1549,14 +1549,10 @@ static void mark_new_skip_worktree(struct pattern_list *pl,
static void populate_from_existing_patterns(struct unpack_trees_options *o,
struct pattern_list *pl)
{
char *sparse = git_pathdup("info/sparse-checkout");
pl->use_cone_patterns = core_sparse_checkout_cone;
if (add_patterns_from_file_to_list(sparse, "", 0, pl, NULL) < 0)
if (get_sparse_checkout_patterns(pl) < 0)
o->skip_sparse_checkout = 1;
else
o->pl = pl;
free(sparse);
}