diff options
Diffstat (limited to 'builtin/repo.c')
| -rw-r--r-- | builtin/repo.c | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/builtin/repo.c b/builtin/repo.c new file mode 100644 index 0000000000..bbb0966f2d --- /dev/null +++ b/builtin/repo.c @@ -0,0 +1,171 @@ +#define USE_THE_REPOSITORY_VARIABLE + +#include "builtin.h" +#include "environment.h" +#include "parse-options.h" +#include "quote.h" +#include "refs.h" +#include "strbuf.h" +#include "shallow.h" + +static const char *const repo_usage[] = { + "git repo info [--format=(keyvalue|nul)] [-z] [<key>...]", + NULL +}; + +typedef int get_value_fn(struct repository *repo, struct strbuf *buf); + +enum output_format { + FORMAT_KEYVALUE, + FORMAT_NUL_TERMINATED, +}; + +struct field { + const char *key; + get_value_fn *get_value; +}; + +static int get_layout_bare(struct repository *repo UNUSED, struct strbuf *buf) +{ + strbuf_addstr(buf, is_bare_repository() ? "true" : "false"); + return 0; +} + +static int get_layout_shallow(struct repository *repo, struct strbuf *buf) +{ + strbuf_addstr(buf, + is_repository_shallow(repo) ? "true" : "false"); + return 0; +} + +static int get_object_format(struct repository *repo, struct strbuf *buf) +{ + strbuf_addstr(buf, repo->hash_algo->name); + return 0; +} + +static int get_references_format(struct repository *repo, struct strbuf *buf) +{ + strbuf_addstr(buf, + ref_storage_format_to_name(repo->ref_storage_format)); + return 0; +} + +/* repo_info_fields keys must be in lexicographical order */ +static const struct field repo_info_fields[] = { + { "layout.bare", get_layout_bare }, + { "layout.shallow", get_layout_shallow }, + { "object.format", get_object_format }, + { "references.format", get_references_format }, +}; + +static int repo_info_fields_cmp(const void *va, const void *vb) +{ + const struct field *a = va; + const struct field *b = vb; + + return strcmp(a->key, b->key); +} + +static get_value_fn *get_value_fn_for_key(const char *key) +{ + const struct field search_key = { key, NULL }; + const struct field *found = bsearch(&search_key, repo_info_fields, + ARRAY_SIZE(repo_info_fields), + sizeof(*found), + repo_info_fields_cmp); + return found ? found->get_value : NULL; +} + +static int print_fields(int argc, const char **argv, + struct repository *repo, + enum output_format format) +{ + int ret = 0; + struct strbuf valbuf = STRBUF_INIT; + struct strbuf quotbuf = STRBUF_INIT; + + for (int i = 0; i < argc; i++) { + get_value_fn *get_value; + const char *key = argv[i]; + + get_value = get_value_fn_for_key(key); + + if (!get_value) { + ret = error(_("key '%s' not found"), key); + continue; + } + + strbuf_reset(&valbuf); + strbuf_reset("buf); + + get_value(repo, &valbuf); + + switch (format) { + case FORMAT_KEYVALUE: + quote_c_style(valbuf.buf, "buf, NULL, 0); + printf("%s=%s\n", key, quotbuf.buf); + break; + case FORMAT_NUL_TERMINATED: + printf("%s\n%s%c", key, valbuf.buf, '\0'); + break; + default: + BUG("not a valid output format: %d", format); + } + } + + strbuf_release(&valbuf); + strbuf_release("buf); + return ret; +} + +static int parse_format_cb(const struct option *opt, + const char *arg, int unset UNUSED) +{ + enum output_format *format = opt->value; + + if (opt->short_name == 'z') + *format = FORMAT_NUL_TERMINATED; + else if (!strcmp(arg, "nul")) + *format = FORMAT_NUL_TERMINATED; + else if (!strcmp(arg, "keyvalue")) + *format = FORMAT_KEYVALUE; + else + die(_("invalid format '%s'"), arg); + + return 0; +} + +static int repo_info(int argc, const char **argv, const char *prefix, + struct repository *repo) +{ + enum output_format format = FORMAT_KEYVALUE; + struct option options[] = { + OPT_CALLBACK_F(0, "format", &format, N_("format"), + N_("output format"), + PARSE_OPT_NONEG, parse_format_cb), + OPT_CALLBACK_F('z', NULL, &format, NULL, + N_("synonym for --format=nul"), + PARSE_OPT_NONEG | PARSE_OPT_NOARG, + parse_format_cb), + OPT_END() + }; + + argc = parse_options(argc, argv, prefix, options, repo_usage, 0); + + return print_fields(argc, argv, repo, format); +} + +int cmd_repo(int argc, const char **argv, const char *prefix, + struct repository *repo) +{ + parse_opt_subcommand_fn *fn = NULL; + struct option options[] = { + OPT_SUBCOMMAND("info", &fn, repo_info), + OPT_END() + }; + + argc = parse_options(argc, argv, prefix, options, repo_usage, 0); + + return fn(argc, argv, prefix, repo); +} |