From ae3caf4c912429c8e9755f2e10d2f0a7f6279c36 Mon Sep 17 00:00:00 2001 From: Adam Spiers Date: Thu, 11 Apr 2013 13:05:10 +0100 Subject: check-ignore: add -n / --non-matching option If `-n` or `--non-matching` are specified, non-matching pathnames will also be output, in which case all fields in each output record except for will be empty. This can be useful when running check-ignore as a background process, so that files can be incrementally streamed to STDIN, and for each of these files, STDOUT will indicate whether that file matched a pattern or not. (Without this option, it would be impossible to tell whether the absence of output for a given file meant that it didn't match any pattern, or that the result simply hadn't been flushed to STDOUT yet.) Signed-off-by: Adam Spiers Signed-off-by: Junio C Hamano --- builtin/check-ignore.c | 46 +++++++++++++++++++++++++++++----------------- 1 file changed, 29 insertions(+), 17 deletions(-) (limited to 'builtin/check-ignore.c') diff --git a/builtin/check-ignore.c b/builtin/check-ignore.c index 0240f99b57..59acf74c58 100644 --- a/builtin/check-ignore.c +++ b/builtin/check-ignore.c @@ -5,7 +5,7 @@ #include "pathspec.h" #include "parse-options.h" -static int quiet, verbose, stdin_paths; +static int quiet, verbose, stdin_paths, show_non_matching; static const char * const check_ignore_usage[] = { "git check-ignore [options] pathname...", "git check-ignore [options] --stdin < ", @@ -22,21 +22,28 @@ static const struct option check_ignore_options[] = { N_("read file names from stdin")), OPT_BOOLEAN('z', NULL, &null_term_line, N_("input paths are terminated by a null character")), + OPT_BOOLEAN('n', "non-matching", &show_non_matching, + N_("show non-matching input paths")), 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 ? "/" : ""; + char *bang = (exclude && exclude->flags & EXC_FLAG_NEGATIVE) ? "!" : ""; + char *slash = (exclude && 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); + 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); } @@ -44,11 +51,14 @@ 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'); } } } @@ -89,15 +99,15 @@ static int check_ignore(const char *prefix, const char **pathspec) ? strlen(prefix) : 0, path); full_path = check_path_for_gitlink(full_path); die_if_path_beyond_symlink(full_path, prefix); + 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++; - } } + if (!quiet && (exclude || show_non_matching)) + output_exclude(path, exclude); + if (exclude) + num_ignored++; } free(seen); clear_directory(&dir); @@ -161,6 +171,8 @@ 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")); if (stdin_paths) { num_ignored = check_ignore_stdin_paths(prefix); -- cgit v1.2.1