diff options
Diffstat (limited to 'third_party/git/builtin/check-attr.c')
| -rw-r--r-- | third_party/git/builtin/check-attr.c | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/third_party/git/builtin/check-attr.c b/third_party/git/builtin/check-attr.c new file mode 100644 index 0000000000..dd83397786 --- /dev/null +++ b/third_party/git/builtin/check-attr.c @@ -0,0 +1,189 @@ +#define USE_THE_INDEX_COMPATIBILITY_MACROS +#include "builtin.h" +#include "cache.h" +#include "config.h" +#include "attr.h" +#include "quote.h" +#include "parse-options.h" + +static int all_attrs; +static int cached_attrs; +static int stdin_paths; +static const char * const check_attr_usage[] = { +N_("git check-attr [-a | --all | <attr>...] [--] <pathname>..."), +N_("git check-attr --stdin [-z] [-a | --all | <attr>...]"), +NULL +}; + +static int nul_term_line; + +static const struct option check_attr_options[] = { + OPT_BOOL('a', "all", &all_attrs, N_("report all attributes set on file")), + OPT_BOOL(0, "cached", &cached_attrs, N_("use .gitattributes only from the index")), + OPT_BOOL(0 , "stdin", &stdin_paths, N_("read file names from stdin")), + OPT_BOOL('z', NULL, &nul_term_line, + N_("terminate input and output records by a NUL character")), + OPT_END() +}; + +static void output_attr(struct attr_check *check, const char *file) +{ + int j; + int cnt = check->nr; + + for (j = 0; j < cnt; j++) { + const char *value = check->items[j].value; + + if (ATTR_TRUE(value)) + value = "set"; + else if (ATTR_FALSE(value)) + value = "unset"; + else if (ATTR_UNSET(value)) + value = "unspecified"; + + if (nul_term_line) { + printf("%s%c" /* path */ + "%s%c" /* attrname */ + "%s%c" /* attrvalue */, + file, 0, + git_attr_name(check->items[j].attr), 0, value, 0); + } else { + quote_c_style(file, NULL, stdout, 0); + printf(": %s: %s\n", + git_attr_name(check->items[j].attr), value); + } + } +} + +static void check_attr(const char *prefix, + struct attr_check *check, + int collect_all, + const char *file) +{ + char *full_path = + prefix_path(prefix, prefix ? strlen(prefix) : 0, file); + + if (collect_all) { + git_all_attrs(&the_index, full_path, check); + } else { + git_check_attr(&the_index, full_path, check); + } + output_attr(check, file); + + free(full_path); +} + +static void check_attr_stdin_paths(const char *prefix, + struct attr_check *check, + int collect_all) +{ + struct strbuf buf = STRBUF_INIT; + struct strbuf unquoted = STRBUF_INIT; + strbuf_getline_fn getline_fn; + + getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf; + while (getline_fn(&buf, stdin) != EOF) { + if (!nul_term_line && buf.buf[0] == '"') { + strbuf_reset(&unquoted); + if (unquote_c_style(&unquoted, buf.buf, NULL)) + die("line is badly quoted"); + strbuf_swap(&buf, &unquoted); + } + check_attr(prefix, check, collect_all, buf.buf); + maybe_flush_or_die(stdout, "attribute to stdout"); + } + strbuf_release(&buf); + strbuf_release(&unquoted); +} + +static NORETURN void error_with_usage(const char *msg) +{ + error("%s", msg); + usage_with_options(check_attr_usage, check_attr_options); +} + +int cmd_check_attr(int argc, const char **argv, const char *prefix) +{ + struct attr_check *check; + int cnt, i, doubledash, filei; + + if (!is_bare_repository()) + setup_work_tree(); + + git_config(git_default_config, NULL); + + argc = parse_options(argc, argv, prefix, check_attr_options, + check_attr_usage, PARSE_OPT_KEEP_DASHDASH); + + if (read_cache() < 0) { + die("invalid cache"); + } + + if (cached_attrs) + git_attr_set_direction(GIT_ATTR_INDEX); + + doubledash = -1; + for (i = 0; doubledash < 0 && i < argc; i++) { + if (!strcmp(argv[i], "--")) + doubledash = i; + } + + /* Process --all and/or attribute arguments: */ + if (all_attrs) { + if (doubledash >= 1) + error_with_usage("Attributes and --all both specified"); + + cnt = 0; + filei = doubledash + 1; + } else if (doubledash == 0) { + error_with_usage("No attribute specified"); + } else if (doubledash < 0) { + if (!argc) + error_with_usage("No attribute specified"); + + if (stdin_paths) { + /* Treat all arguments as attribute names. */ + cnt = argc; + filei = argc; + } else { + /* Treat exactly one argument as an attribute name. */ + cnt = 1; + filei = 1; + } + } else { + cnt = doubledash; + filei = doubledash + 1; + } + + /* Check file argument(s): */ + if (stdin_paths) { + if (filei < argc) + error_with_usage("Can't specify files with --stdin"); + } else { + if (filei >= argc) + error_with_usage("No file specified"); + } + + check = attr_check_alloc(); + if (!all_attrs) { + for (i = 0; i < cnt; i++) { + const struct git_attr *a = git_attr(argv[i]); + + if (!a) + return error("%s: not a valid attribute name", + argv[i]); + attr_check_append(check, a); + } + } + + if (stdin_paths) + check_attr_stdin_paths(prefix, check, all_attrs); + else { + for (i = filei; i < argc; i++) + check_attr(prefix, check, all_attrs, argv[i]); + maybe_flush_or_die(stdout, "attribute to stdout"); + } + + attr_check_free(check); + return 0; +} |