diff options
Diffstat (limited to 'builtin/check-ignore.c')
| -rw-r--r-- | builtin/check-ignore.c | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/builtin/check-ignore.c b/builtin/check-ignore.c new file mode 100644 index 0000000000..709535ce09 --- /dev/null +++ b/builtin/check-ignore.c @@ -0,0 +1,173 @@ +#include "builtin.h" +#include "cache.h" +#include "dir.h" +#include "quote.h" +#include "pathspec.h" +#include "parse-options.h" + +static int quiet, verbose, stdin_paths; +static const char * const check_ignore_usage[] = { +"git check-ignore [options] pathname...", +"git check-ignore [options] --stdin < <list-of-paths>", +NULL +}; + +static int null_term_line; + +static const struct option check_ignore_options[] = { + OPT__QUIET(&quiet, N_("suppress progress reporting")), + OPT__VERBOSE(&verbose, N_("be verbose")), + OPT_GROUP(""), + OPT_BOOLEAN(0, "stdin", &stdin_paths, + N_("read file names from stdin")), + OPT_BOOLEAN('z', NULL, &null_term_line, + N_("input paths are terminated by a null character")), + OPT_END() +}; + +static void output_exclude(const char *path, struct exclude *exclude) +{ + char *bang = exclude->flags & EXC_FLAG_NEGATIVE ? "!" : ""; + char *slash = exclude->flags & EXC_FLAG_MUSTBEDIR ? "/" : ""; + if (!null_term_line) { + if (!verbose) { + write_name_quoted(path, stdout, '\n'); + } else { + quote_c_style(exclude->el->src, NULL, stdout, 0); + printf(":%d:%s%s%s\t", + exclude->srcpos, + bang, exclude->pattern, slash); + quote_c_style(path, NULL, stdout, 0); + fputc('\n', stdout); + } + } else { + if (!verbose) { + printf("%s%c", path, '\0'); + } else { + printf("%s%c%d%c%s%s%s%c%s%c", + exclude->el->src, '\0', + exclude->srcpos, '\0', + bang, exclude->pattern, slash, '\0', + path, '\0'); + } + } +} + +static int check_ignore(const char *prefix, const char **pathspec) +{ + struct dir_struct dir; + const char *path, *full_path; + char *seen; + int num_ignored = 0, dtype = DT_UNKNOWN, i; + struct path_exclude_check check; + struct exclude *exclude; + + /* read_cache() is only necessary so we can watch out for submodules. */ + if (read_cache() < 0) + die(_("index file corrupt")); + + memset(&dir, 0, sizeof(dir)); + dir.flags |= DIR_COLLECT_IGNORED; + setup_standard_excludes(&dir); + + if (!pathspec || !*pathspec) { + if (!quiet) + fprintf(stderr, "no pathspec given.\n"); + return 0; + } + + path_exclude_check_init(&check, &dir); + /* + * look for pathspecs matching entries in the index, since these + * should not be ignored, in order to be consistent with + * 'git status', 'git add' etc. + */ + seen = find_pathspecs_matching_against_index(pathspec); + for (i = 0; pathspec[i]; i++) { + path = pathspec[i]; + full_path = prefix_path(prefix, prefix + ? strlen(prefix) : 0, path); + full_path = check_path_for_gitlink(full_path); + die_if_path_beyond_symlink(full_path, prefix); + if (!seen[i] && path[0]) { + exclude = last_exclude_matching_path(&check, full_path, + -1, &dtype); + if (exclude) { + if (!quiet) + output_exclude(path, exclude); + num_ignored++; + } + } + } + free(seen); + clear_directory(&dir); + path_exclude_check_clear(&check); + + return num_ignored; +} + +static int check_ignore_stdin_paths(const char *prefix) +{ + struct strbuf buf, nbuf; + char **pathspec = NULL; + size_t nr = 0, alloc = 0; + int line_termination = null_term_line ? 0 : '\n'; + int num_ignored; + + strbuf_init(&buf, 0); + strbuf_init(&nbuf, 0); + while (strbuf_getline(&buf, stdin, line_termination) != EOF) { + if (line_termination && buf.buf[0] == '"') { + strbuf_reset(&nbuf); + if (unquote_c_style(&nbuf, buf.buf, NULL)) + die("line is badly quoted"); + strbuf_swap(&buf, &nbuf); + } + ALLOC_GROW(pathspec, nr + 1, alloc); + pathspec[nr] = xcalloc(strlen(buf.buf) + 1, sizeof(*buf.buf)); + strcpy(pathspec[nr++], buf.buf); + } + ALLOC_GROW(pathspec, nr + 1, alloc); + pathspec[nr] = NULL; + num_ignored = check_ignore(prefix, (const char **)pathspec); + maybe_flush_or_die(stdout, "attribute to stdout"); + strbuf_release(&buf); + strbuf_release(&nbuf); + free(pathspec); + return num_ignored; +} + +int cmd_check_ignore(int argc, const char **argv, const char *prefix) +{ + int num_ignored; + + git_config(git_default_config, NULL); + + argc = parse_options(argc, argv, prefix, check_ignore_options, + check_ignore_usage, 0); + + if (stdin_paths) { + if (argc > 0) + die(_("cannot specify pathnames with --stdin")); + } else { + if (null_term_line) + die(_("-z only makes sense with --stdin")); + if (argc == 0) + die(_("no path specified")); + } + if (quiet) { + if (argc > 1) + die(_("--quiet is only valid with a single pathname")); + if (verbose) + die(_("cannot have both --quiet and --verbose")); + } + + if (stdin_paths) { + num_ignored = check_ignore_stdin_paths(prefix); + } else { + num_ignored = check_ignore(prefix, argv); + maybe_flush_or_die(stdout, "ignore to stdout"); + } + + return !num_ignored; +} |