4 #include "parse-options.h"
6 #include "repository.h"
7 #include "run-command.h"
10 static char const * const builtin_sparse_checkout_usage[] = {
11 N_("git sparse-checkout (init|list|set) <options>"),
15 static char *get_sparse_checkout_filename(void)
17 return git_pathdup("info/sparse-checkout");
20 static void write_patterns_to_file(FILE *fp, struct pattern_list *pl)
24 for (i = 0; i < pl->nr; i++) {
25 struct path_pattern *p = pl->patterns[i];
27 if (p->flags & PATTERN_FLAG_NEGATIVE)
30 fprintf(fp, "%s", p->pattern);
32 if (p->flags & PATTERN_FLAG_MUSTBEDIR)
39 static int sparse_checkout_list(int argc, const char **argv)
41 struct pattern_list pl;
42 char *sparse_filename;
45 memset(&pl, 0, sizeof(pl));
47 sparse_filename = get_sparse_checkout_filename();
48 res = add_patterns_from_file_to_list(sparse_filename, "", 0, &pl, NULL);
49 free(sparse_filename);
52 warning(_("this worktree is not sparse (sparse-checkout file may not exist)"));
56 write_patterns_to_file(stdout, &pl);
57 clear_pattern_list(&pl);
62 static int update_working_directory(void)
64 struct argv_array argv = ARGV_ARRAY_INIT;
66 argv_array_pushl(&argv, "read-tree", "-m", "-u", "HEAD", NULL);
68 if (run_command_v_opt(argv.argv, RUN_GIT_CMD)) {
69 error(_("failed to update index with new sparse-checkout patterns"));
73 argv_array_clear(&argv);
77 enum sparse_checkout_mode {
79 MODE_ALL_PATTERNS = 1,
82 static int set_config(enum sparse_checkout_mode mode)
84 const char *config_path;
86 if (git_config_set_gently("extensions.worktreeConfig", "true")) {
87 error(_("failed to set extensions.worktreeConfig setting"));
91 config_path = git_path("config.worktree");
92 git_config_set_in_file_gently(config_path,
93 "core.sparseCheckout",
94 mode ? "true" : NULL);
99 static int sparse_checkout_init(int argc, const char **argv)
101 struct pattern_list pl;
102 char *sparse_filename;
105 struct object_id oid;
107 if (set_config(MODE_ALL_PATTERNS))
110 memset(&pl, 0, sizeof(pl));
112 sparse_filename = get_sparse_checkout_filename();
113 res = add_patterns_from_file_to_list(sparse_filename, "", 0, &pl, NULL);
115 /* If we already have a sparse-checkout file, use it. */
117 free(sparse_filename);
121 /* initial mode: all blobs at root */
122 fp = xfopen(sparse_filename, "w");
124 die(_("failed to open '%s'"), sparse_filename);
126 free(sparse_filename);
127 fprintf(fp, "/*\n!/*/\n");
130 if (get_oid("HEAD", &oid)) {
131 /* assume we are in a fresh repo */
136 return update_working_directory();
139 static int write_patterns_and_update(struct pattern_list *pl)
141 char *sparse_filename;
144 sparse_filename = get_sparse_checkout_filename();
145 fp = fopen(sparse_filename, "w");
146 write_patterns_to_file(fp, pl);
148 free(sparse_filename);
150 return update_working_directory();
153 static char const * const builtin_sparse_checkout_set_usage[] = {
154 N_("git sparse-checkout set (--stdin | <patterns>)"),
158 static struct sparse_checkout_set_opts {
162 static int sparse_checkout_set(int argc, const char **argv, const char *prefix)
164 static const char *empty_base = "";
166 struct pattern_list pl;
168 int changed_config = 0;
170 static struct option builtin_sparse_checkout_set_options[] = {
171 OPT_BOOL(0, "stdin", &set_opts.use_stdin,
172 N_("read patterns from standard in")),
176 memset(&pl, 0, sizeof(pl));
178 argc = parse_options(argc, argv, prefix,
179 builtin_sparse_checkout_set_options,
180 builtin_sparse_checkout_set_usage,
181 PARSE_OPT_KEEP_UNKNOWN);
183 if (set_opts.use_stdin) {
184 struct strbuf line = STRBUF_INIT;
186 while (!strbuf_getline(&line, stdin)) {
187 char *buf = strbuf_detach(&line, NULL);
188 add_pattern(buf, empty_base, 0, &pl, 0);
191 for (i = 0; i < argc; i++)
192 add_pattern(argv[i], empty_base, 0, &pl, 0);
195 if (!core_apply_sparse_checkout) {
196 set_config(MODE_ALL_PATTERNS);
197 core_apply_sparse_checkout = 1;
201 result = write_patterns_and_update(&pl);
203 if (result && changed_config)
204 set_config(MODE_NO_PATTERNS);
206 clear_pattern_list(&pl);
210 int cmd_sparse_checkout(int argc, const char **argv, const char *prefix)
212 static struct option builtin_sparse_checkout_options[] = {
216 if (argc == 2 && !strcmp(argv[1], "-h"))
217 usage_with_options(builtin_sparse_checkout_usage,
218 builtin_sparse_checkout_options);
220 argc = parse_options(argc, argv, prefix,
221 builtin_sparse_checkout_options,
222 builtin_sparse_checkout_usage,
223 PARSE_OPT_STOP_AT_NON_OPTION);
225 git_config(git_default_config, NULL);
228 if (!strcmp(argv[0], "list"))
229 return sparse_checkout_list(argc, argv);
230 if (!strcmp(argv[0], "init"))
231 return sparse_checkout_init(argc, argv);
232 if (!strcmp(argv[0], "set"))
233 return sparse_checkout_set(argc, argv, prefix);
236 usage_with_options(builtin_sparse_checkout_usage,
237 builtin_sparse_checkout_options);