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git/builtin/check-ignore.c

198 lines
5.2 KiB

#define USE_THE_INDEX_COMPATIBILITY_MACROS
#include "builtin.h"
#include "cache.h"
#include "config.h"
#include "dir.h"
#include "quote.h"
#include "pathspec.h"
#include "parse-options.h"
#include "submodule.h"
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",
NULL
};
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_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_pattern(const char *path, struct path_pattern *pattern)
{
char *bang = (pattern && pattern->flags & PATTERN_FLAG_NEGATIVE) ? "!" : "";
char *slash = (pattern && pattern->flags & PATTERN_FLAG_MUSTBEDIR) ? "/" : "";
if (!nul_term_line) {
if (!verbose) {
write_name_quoted(path, stdout, '\n');
} else {
if (pattern) {
quote_c_style(pattern->pl->src, NULL, stdout, 0);
printf(":%d:%s%s%s\t",
pattern->srcpos,
bang, pattern->pattern, slash);
}
else {
printf("::\t");
}
quote_c_style(path, NULL, stdout, 0);
fputc('\n', stdout);
}
} else {
if (!verbose) {
printf("%s%c", path, '\0');
} else {
if (pattern)
printf("%s%c%d%c%s%s%s%c%s%c",
pattern->pl->src, '\0',
pattern->srcpos, '\0',
bang, pattern->pattern, slash, '\0',
path, '\0');
else
printf("%c%c%c%s%c", '\0', '\0', '\0', path, '\0');
}
}
}
static int check_ignore(struct dir_struct *dir,
const char *prefix, int argc, const char **argv)
{
const char *full_path;
char *seen;
int num_ignored = 0, i;
struct path_pattern *pattern;
struct pathspec pathspec;
if (!argc) {
if (!quiet)
fprintf(stderr, "no pathspec given.\n");
return 0;
}
/*
* check-ignore just needs paths. Magic beyond :/ is really
* irrelevant.
*/
parse_pathspec(&pathspec,
PATHSPEC_ALL_MAGIC & ~PATHSPEC_FROMTOP,
PATHSPEC_SYMLINK_LEADING_PATH |
PATHSPEC_KEEP_ORDER,
prefix, argv);
die_path_inside_submodule(&the_index, &pathspec);
/*
* 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, &the_index,
PS_HEED_SKIP_WORKTREE);
for (i = 0; i < pathspec.nr; i++) {
full_path = pathspec.items[i].match;
pattern = NULL;
if (!seen[i]) {
int dtype = DT_UNKNOWN;
pattern = last_matching_pattern(dir, &the_index,
full_path, &dtype);
if (!verbose && pattern &&
pattern->flags & PATTERN_FLAG_NEGATIVE)
pattern = NULL;
}
if (!quiet && (pattern || show_non_matching))
output_pattern(pathspec.items[i].original, pattern);
if (pattern)
num_ignored++;
}
free(seen);
clear_pathspec(&pathspec);
return num_ignored;
}
static int check_ignore_stdin_paths(struct dir_struct *dir, const char *prefix)
{
struct strbuf buf = STRBUF_INIT;
struct strbuf unquoted = STRBUF_INIT;
char *pathspec[2] = { NULL, NULL };
strbuf_getline_fn getline_fn;
int num_ignored = 0;
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);
}
pathspec[0] = buf.buf;
num_ignored += check_ignore(dir, prefix,
1, (const char **)pathspec);
maybe_flush_or_die(stdout, "check-ignore to stdout");
}
strbuf_release(&buf);
strbuf_release(&unquoted);
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);
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 (nul_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 (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"));
dir_init(&dir);
setup_standard_excludes(&dir);
if (stdin_paths) {
num_ignored = check_ignore_stdin_paths(&dir, prefix);
} else {
num_ignored = check_ignore(&dir, prefix, argc, argv);
maybe_flush_or_die(stdout, "ignore to stdout");
}
dir_clear(&dir);
return !num_ignored;
}