Merge branch 'ib/rev-parse-parseopt-argh'
[gitweb.git] / builtin / check-ignore.c
index 0240f99b57a2f81320b84951bf6dc89ab60d6282..594463a11bcba3cf99748ccdaeb055bd79283ddd 100644 (file)
@@ -5,38 +5,47 @@
 #include "pathspec.h"
 #include "parse-options.h"
 
-static int quiet, verbose, stdin_paths;
+static int quiet, verbose, stdin_paths, show_non_matching, no_index;
 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 int nul_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_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_BOOL('n', "non-matching", &show_non_matching,
+                N_("show non-matching input paths")),
+       OPT_BOOL(0, "no-index", &no_index,
+                N_("ignore index when checking")),
        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) {
+       char *bang  = (exclude && exclude->flags & EXC_FLAG_NEGATIVE)  ? "!" : "";
+       char *slash = (exclude && exclude->flags & EXC_FLAG_MUSTBEDIR) ? "/" : "";
+       if (!nul_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);
+                       if (exclude) {
+                               quote_c_style(exclude->el->src, NULL, stdout, 0);
+                               printf(":%d:%s%s%s\t",
+                                      exclude->srcpos,
+                                      bang, exclude->pattern, slash);
+                       }
+                       else {
+                               printf("::\t");
+                       }
                        quote_c_style(path, NULL, stdout, 0);
                        fputc('\n', stdout);
                }
@@ -44,75 +53,72 @@ static void output_exclude(const char *path, struct exclude *exclude)
                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');
+                       if (exclude)
+                               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');
+                       else
+                               printf("%c%c%c%s%c", '\0', '\0', '\0', path, '\0');
                }
        }
 }
 
-static int check_ignore(const char *prefix, const char **pathspec)
+static int check_ignore(struct dir_struct *dir,
+                       const char *prefix, int argc, const char **argv)
 {
-       struct dir_struct dir;
-       const char *path, *full_path;
+       const char *full_path;
        char *seen;
        int num_ignored = 0, dtype = DT_UNKNOWN, i;
-       struct path_exclude_check check;
        struct exclude *exclude;
+       struct pathspec pathspec;
 
-       /* 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 (!argc) {
                if (!quiet)
                        fprintf(stderr, "no pathspec given.\n");
                return 0;
        }
 
-       path_exclude_check_init(&check, &dir);
+       /*
+        * check-ignore just needs paths. Magic beyond :/ is really
+        * irrelevant.
+        */
+       parse_pathspec(&pathspec,
+                      PATHSPEC_ALL_MAGIC & ~PATHSPEC_FROMTOP,
+                      PATHSPEC_SYMLINK_LEADING_PATH |
+                      PATHSPEC_STRIP_SUBMODULE_SLASH_EXPENSIVE |
+                      PATHSPEC_KEEP_ORDER,
+                      prefix, argv);
+
        /*
         * 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);
+       seen = find_pathspecs_matching_against_index(&pathspec);
+       for (i = 0; i < pathspec.nr; i++) {
+               full_path = pathspec.items[i].match;
+               exclude = NULL;
                if (!seen[i]) {
-                       exclude = last_exclude_matching_path(&check, full_path,
-                                                            -1, &dtype);
-                       if (exclude) {
-                               if (!quiet)
-                                       output_exclude(path, exclude);
-                               num_ignored++;
-                       }
+                       exclude = last_exclude_matching(dir, full_path, &dtype);
                }
+               if (!quiet && (exclude || show_non_matching))
+                       output_exclude(pathspec.items[i].original, exclude);
+               if (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)
+static int check_ignore_stdin_paths(struct dir_struct *dir, 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;
+       char *pathspec[2] = { NULL, NULL };
+       int line_termination = nul_term_line ? 0 : '\n';
+       int num_ignored = 0;
 
        strbuf_init(&buf, 0);
        strbuf_init(&nbuf, 0);
@@ -123,23 +129,20 @@ static int check_ignore_stdin_paths(const char *prefix)
                                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);
+               pathspec[0] = buf.buf;
+               num_ignored += check_ignore(dir, prefix,
+                                           1, (const char **)pathspec);
+               maybe_flush_or_die(stdout, "check-ignore to stdout");
        }
-       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;
+       struct dir_struct dir;
 
        git_config(git_default_config, NULL);
 
@@ -150,7 +153,7 @@ int cmd_check_ignore(int argc, const char **argv, const char *prefix)
                if (argc > 0)
                        die(_("cannot specify pathnames with --stdin"));
        } else {
-               if (null_term_line)
+               if (nul_term_line)
                        die(_("-z only makes sense with --stdin"));
                if (argc == 0)
                        die(_("no path specified"));
@@ -161,13 +164,24 @@ int cmd_check_ignore(int argc, const char **argv, const char *prefix)
                if (verbose)
                        die(_("cannot have both --quiet and --verbose"));
        }
+       if (show_non_matching && !verbose)
+               die(_("--non-matching is only valid with --verbose"));
+
+       /* read_cache() is only necessary so we can watch out for submodules. */
+       if (!no_index && read_cache() < 0)
+               die(_("index file corrupt"));
+
+       memset(&dir, 0, sizeof(dir));
+       setup_standard_excludes(&dir);
 
        if (stdin_paths) {
-               num_ignored = check_ignore_stdin_paths(prefix);
+               num_ignored = check_ignore_stdin_paths(&dir, prefix);
        } else {
-               num_ignored = check_ignore(prefix, argv);
+               num_ignored = check_ignore(&dir, prefix, argc, argv);
                maybe_flush_or_die(stdout, "ignore to stdout");
        }
 
+       clear_directory(&dir);
+
        return !num_ignored;
 }