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-rw-r--r--builtin/sparse-checkout.c86
1 files changed, 86 insertions, 0 deletions
diff --git a/builtin/sparse-checkout.c b/builtin/sparse-checkout.c
new file mode 100644
index 0000000..5717c9b
--- /dev/null
+++ b/builtin/sparse-checkout.c
@@ -0,0 +1,86 @@
+#include "builtin.h"
+#include "config.h"
+#include "dir.h"
+#include "parse-options.h"
+#include "pathspec.h"
+#include "repository.h"
+#include "run-command.h"
+#include "strbuf.h"
+
+static char const * const builtin_sparse_checkout_usage[] = {
+ N_("git sparse-checkout list"),
+ 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;
+
+ for (i = 0; i < pl->nr; i++) {
+ struct path_pattern *p = pl->patterns[i];
+
+ if (p->flags & PATTERN_FLAG_NEGATIVE)
+ fprintf(fp, "!");
+
+ fprintf(fp, "%s", p->pattern);
+
+ if (p->flags & PATTERN_FLAG_MUSTBEDIR)
+ fprintf(fp, "/");
+
+ fprintf(fp, "\n");
+ }
+}
+
+static int sparse_checkout_list(int argc, const char **argv)
+{
+ struct pattern_list pl;
+ char *sparse_filename;
+ int res;
+
+ memset(&pl, 0, sizeof(pl));
+
+ sparse_filename = get_sparse_checkout_filename();
+ res = add_patterns_from_file_to_list(sparse_filename, "", 0, &pl, NULL);
+ free(sparse_filename);
+
+ if (res < 0) {
+ warning(_("this worktree is not sparse (sparse-checkout file may not exist)"));
+ return 0;
+ }
+
+ write_patterns_to_file(stdout, &pl);
+ clear_pattern_list(&pl);
+
+ return 0;
+}
+
+int cmd_sparse_checkout(int argc, const char **argv, const char *prefix)
+{
+ static struct option builtin_sparse_checkout_options[] = {
+ OPT_END(),
+ };
+
+ if (argc == 2 && !strcmp(argv[1], "-h"))
+ usage_with_options(builtin_sparse_checkout_usage,
+ builtin_sparse_checkout_options);
+
+ argc = parse_options(argc, argv, prefix,
+ builtin_sparse_checkout_options,
+ builtin_sparse_checkout_usage,
+ PARSE_OPT_STOP_AT_NON_OPTION);
+
+ git_config(git_default_config, NULL);
+
+ if (argc > 0) {
+ if (!strcmp(argv[0], "list"))
+ return sparse_checkout_list(argc, argv);
+ }
+
+ usage_with_options(builtin_sparse_checkout_usage,
+ builtin_sparse_checkout_options);
+}