#include "tree.h"
#include "commit.h"
#include "tag.h"
-#include "diff.h"
-#include "revision.h"
+#include "tree-walk.h"
#include "builtin.h"
#include <regex.h>
+#include <fnmatch.h>
-static int pathspec_matches(struct diff_options *opt, const char *name)
+/*
+ * git grep pathspecs are somewhat different from diff-tree pathspecs;
+ * pathname wildcards are allowed.
+ */
+static int pathspec_matches(const char **paths, const char *name)
{
- int i, j;
- int namelen;
- if (!opt->nr_paths)
+ int namelen, i;
+ if (!paths || !*paths)
return 1;
namelen = strlen(name);
- for (i = 0; i < opt->nr_paths; i++) {
- const char *match = opt->paths[i];
- int matchlen = opt->pathlens[i];
- if (matchlen <= namelen) {
- if (!strncmp(name, match, matchlen))
- return 1;
+ for (i = 0; paths[i]; i++) {
+ const char *match = paths[i];
+ int matchlen = strlen(match);
+ const char *slash, *cp;
+
+ if ((matchlen <= namelen) &&
+ !strncmp(name, match, matchlen) &&
+ (match[matchlen-1] == '/' ||
+ name[matchlen] == '\0' || name[matchlen] == '/'))
+ return 1;
+ if (!fnmatch(match, name, 0))
+ return 1;
+ if (name[namelen-1] != '/')
continue;
- }
- /* If name is "Documentation" and pathspec is
- * "Documentation/", they should match. Maybe
- * we would want to strip it in get_pathspec()???
+
+ /* We are being asked if the name directory is worth
+ * descending into.
+ *
+ * Find the longest leading directory name that does
+ * not have metacharacter in the pathspec; the name
+ * we are looking at must overlap with that directory.
*/
- if (strncmp(name, match, namelen))
- continue;
- for (j = namelen; j < matchlen; j++)
- if (match[j] != '/')
+ for (cp = match, slash = NULL; cp - match < matchlen; cp++) {
+ char ch = *cp;
+ if (ch == '/')
+ slash = cp;
+ if (ch == '*' || ch == '[')
break;
- if (matchlen <= j)
- return 1;
+ }
+ if (!slash)
+ slash = match; /* toplevel */
+ else
+ slash++;
+ if (namelen <= slash - match) {
+ /* Looking at "Documentation/" and
+ * the pattern says "Documentation/howto/", or
+ * "Documentation/diff*.txt".
+ */
+ if (!memcmp(match, name, namelen))
+ return 1;
+ }
+ else {
+ /* Looking at "Documentation/howto/" and
+ * the pattern says "Documentation/h*".
+ */
+ if (!memcmp(match, name, slash - match))
+ return 1;
+ }
}
return 0;
}
regex_t regexp;
unsigned linenum:1;
unsigned invert:1;
+ unsigned name_only:1;
int regflags;
unsigned pre_context;
unsigned post_context;
if (opt->invert)
hit = !hit;
if (hit) {
+ if (opt->name_only) {
+ printf("%s\n", name);
+ return 1;
+ }
/* Hit at this line. If we haven't shown the
* pre-context lines, we would need to show them.
*/
return i;
}
-static int grep_cache(struct grep_opt *opt, struct rev_info *revs, int cached)
+static int grep_cache(struct grep_opt *opt, const char **paths, int cached)
{
int hit = 0;
int nr;
struct cache_entry *ce = active_cache[nr];
if (ce_stage(ce) || !S_ISREG(ntohl(ce->ce_mode)))
continue;
- if (!pathspec_matches(&revs->diffopt, ce->name))
+ if (!pathspec_matches(paths, ce->name))
continue;
if (cached)
hit |= grep_sha1(opt, ce->sha1, ce->name);
return hit;
}
-static int grep_tree(struct grep_opt *opt, struct rev_info *revs,
+static int grep_tree(struct grep_opt *opt, const char **paths,
struct tree_desc *tree,
const char *tree_name, const char *base)
{
int hit = 0;
const char *path;
const unsigned char *sha1;
- char *down_base;
+ char *down;
char *path_buf = xmalloc(PATH_MAX + strlen(tree_name) + 100);
if (tree_name[0]) {
int offset = sprintf(path_buf, "%s:", tree_name);
- down_base = path_buf + offset;
- strcat(down_base, base);
+ down = path_buf + offset;
+ strcat(down, base);
}
else {
- down_base = path_buf;
- strcpy(down_base, base);
+ down = path_buf;
+ strcpy(down, base);
}
len = strlen(path_buf);
pathlen = strlen(path);
strcpy(path_buf + len, path);
- if (!pathspec_matches(&revs->diffopt, down_base))
+ if (S_ISDIR(mode))
+ /* Match "abc/" against pathspec to
+ * decide if we want to descend into "abc"
+ * directory.
+ */
+ strcpy(path_buf + len + pathlen, "/");
+
+ if (!pathspec_matches(paths, down))
;
else if (S_ISREG(mode))
hit |= grep_sha1(opt, sha1, path_buf);
if (!data)
die("unable to read tree (%s)",
sha1_to_hex(sha1));
- strcpy(path_buf + len + pathlen, "/");
sub.buf = data;
- hit = grep_tree(opt, revs, &sub, tree_name, down_base);
+ hit |= grep_tree(opt, paths, &sub, tree_name, down);
free(data);
}
update_tree_entry(tree);
return hit;
}
-static int grep_object(struct grep_opt *opt, struct rev_info *revs,
+static int grep_object(struct grep_opt *opt, const char **paths,
struct object *obj, const char *name)
{
if (!strcmp(obj->type, blob_type))
if (!data)
die("unable to read tree (%s)", sha1_to_hex(obj->sha1));
tree.buf = data;
- hit = grep_tree(opt, revs, &tree, name, "");
+ hit = grep_tree(opt, paths, &tree, name, "");
free(data);
return hit;
}
int cmd_grep(int argc, const char **argv, char **envp)
{
- struct rev_info rev;
- const char **dst, **src;
int err;
int hit = 0;
- int no_more_arg = 0;
- int seen_range = 0;
+ int no_more_flags = 0;
int seen_noncommit = 0;
int cached = 0;
struct grep_opt opt;
- struct object_list *list;
+ struct object_list *list, **tail, *object_list = NULL;
+ const char *prefix = setup_git_directory();
+ const char **paths = NULL;
memset(&opt, 0, sizeof(opt));
opt.regflags = REG_NEWLINE;
/*
- * Interpret and remove the grep options upfront. Sigh...
+ * No point using rev_info, really.
*/
- for (dst = src = &argv[1]; src < argc + argv; ) {
- const char *arg = *src++;
- if (!no_more_arg) {
- if (!strcmp("--", arg)) {
- no_more_arg = 1;
- *dst++ = arg;
- continue;
- }
- if (!strcmp("--cached", arg)) {
- cached = 1;
- continue;
- }
- if (!strcmp("-i", arg) ||
- !strcmp("--ignore-case", arg)) {
- opt.regflags |= REG_ICASE;
- continue;
- }
- if (!strcmp("-v", arg) ||
- !strcmp("--invert-match", arg)) {
- opt.invert = 1;
- continue;
- }
- if (!strcmp("-E", arg) ||
- !strcmp("--extended-regexp", arg)) {
- opt.regflags |= REG_EXTENDED;
- continue;
- }
- if (!strcmp("-G", arg) ||
- !strcmp("--basic-regexp", arg)) {
- opt.regflags &= ~REG_EXTENDED;
- continue;
- }
- if (!strcmp("-e", arg)) {
- if (src < argc + argv) {
- opt.pattern = *src++;
- continue;
- }
+ while (1 < argc) {
+ const char *arg = argv[1];
+ argc--; argv++;
+ if (!strcmp("--cached", arg)) {
+ cached = 1;
+ continue;
+ }
+ if (!strcmp("-i", arg) ||
+ !strcmp("--ignore-case", arg)) {
+ opt.regflags |= REG_ICASE;
+ continue;
+ }
+ if (!strcmp("-v", arg) ||
+ !strcmp("--invert-match", arg)) {
+ opt.invert = 1;
+ continue;
+ }
+ if (!strcmp("-E", arg) ||
+ !strcmp("--extended-regexp", arg)) {
+ opt.regflags |= REG_EXTENDED;
+ continue;
+ }
+ if (!strcmp("-G", arg) ||
+ !strcmp("--basic-regexp", arg)) {
+ opt.regflags &= ~REG_EXTENDED;
+ continue;
+ }
+ if (!strcmp("-n", arg)) {
+ opt.linenum = 1;
+ continue;
+ }
+ if (!strcmp("-H", arg)) {
+ /* We always show the pathname, so this
+ * is a noop.
+ */
+ continue;
+ }
+ if (!strcmp("-l", arg) ||
+ !strcmp("--files-with-matches", arg)) {
+ opt.name_only = 1;
+ continue;
+ }
+ if (!strcmp("-A", arg) ||
+ !strcmp("-B", arg) ||
+ !strcmp("-C", arg)) {
+ unsigned num;
+ if (argc <= 1 ||
+ sscanf(*++argv, "%u", &num) != 1)
usage(builtin_grep_usage);
+ argc--;
+ switch (arg[1]) {
+ case 'A':
+ opt.post_context = num;
+ break;
+ case 'C':
+ opt.post_context = num;
+ case 'B':
+ opt.pre_context = num;
+ break;
}
- if (!strcmp("-n", arg)) {
- opt.linenum = 1;
- continue;
- }
- if (!strcmp("-H", arg)) {
- /* We always show the pathname, so this
- * is a noop.
+ continue;
+ }
+ if (!strcmp("-e", arg)) {
+ if (1 < argc) {
+ /* We probably would want to do
+ * -e pat1 -e pat2 as well later...
*/
+ if (opt.pattern)
+ die("more than one pattern?");
+ opt.pattern = *++argv;
+ argc--;
continue;
}
- if (!strcmp("-A", arg) ||
- !strcmp("-B", arg) ||
- !strcmp("-C", arg)) {
- unsigned num;
- if ((argc + argv <= src) ||
- sscanf(*src++, "%u", &num) != 1)
- usage(builtin_grep_usage);
- switch (arg[1]) {
- case 'A':
- opt.post_context = num;
- break;
- case 'C':
- opt.post_context = num;
- case 'B':
- opt.pre_context = num;
- break;
- }
- continue;
- }
+ usage(builtin_grep_usage);
+ }
+ if (!strcmp("--", arg)) {
+ no_more_flags = 1;
+ continue;
+ }
+ /* Either unrecognized option or a single pattern */
+ if (!no_more_flags && *arg == '-')
+ usage(builtin_grep_usage);
+ if (!opt.pattern) {
+ opt.pattern = arg;
+ break;
+ }
+ else {
+ /* We are looking at the first path or rev;
+ * it is found at argv[0] after leaving the
+ * loop.
+ */
+ argc++; argv--;
+ break;
}
- *dst++ = arg;
}
if (!opt.pattern)
die("no pattern given.");
-
err = regcomp(&opt.regexp, opt.pattern, opt.regflags);
if (err) {
char errbuf[1024];
regfree(&opt.regexp);
die("'%s': %s", opt.pattern, errbuf);
}
+ tail = &object_list;
+ while (1 < argc) {
+ struct object *object;
+ struct object_list *elem;
+ const char *arg = argv[1];
+ unsigned char sha1[20];
+ if (get_sha1(arg, sha1) < 0)
+ break;
+ object = parse_object(sha1);
+ if (!object)
+ die("bad object %s", arg);
+ elem = object_list_insert(object, tail);
+ elem->name = arg;
+ tail = &elem->next;
+ argc--; argv++;
+ }
+ if (1 < argc)
+ paths = get_pathspec(prefix, argv + 1);
+ else if (prefix) {
+ paths = xcalloc(2, sizeof(const char *));
+ paths[0] = prefix;
+ paths[1] = NULL;
+ }
- init_revisions(&rev);
- *dst = NULL;
- argc = setup_revisions(dst - argv, argv, &rev, NULL);
-
+ if (!object_list)
+ return !grep_cache(&opt, paths, cached);
/*
* Do not walk "grep -e foo master next pu -- Documentation/"
* but do walk "grep -e foo master..next -- Documentation/".
* "grep -e foo v1.0.0:Documentation/ master..next"
* so detect that and complain.
*/
- for (list = rev.pending_objects; list; list = list->next) {
+ for (list = object_list; list; list = list->next) {
struct object *real_obj;
- if (list->item->flags & UNINTERESTING)
- seen_range = 1;
real_obj = deref_tag(list->item, NULL, 0);
if (strcmp(real_obj->type, commit_type))
seen_noncommit = 1;
}
- if (!rev.pending_objects)
- return !grep_cache(&opt, &rev, cached);
if (cached)
die("both --cached and revisions given.");
- if (seen_range && seen_noncommit)
- die("both A..B and non commit are given.");
- if (seen_range) {
- struct commit *commit;
- prepare_revision_walk(&rev);
- while ((commit = get_revision(&rev)) != NULL) {
- unsigned char *sha1 = commit->object.sha1;
- const char *n = find_unique_abbrev(sha1, rev.abbrev);
- char rev_name[41];
- strcpy(rev_name, n);
- if (grep_object(&opt, &rev, &commit->object, rev_name))
- hit = 1;
- commit->buffer = NULL;
- }
- return !hit;
- }
-
- /* all of them are non-commit; do not walk, and
- * do not lose their names.
- */
- for (list = rev.pending_objects; list; list = list->next) {
+ for (list = object_list; list; list = list->next) {
struct object *real_obj;
real_obj = deref_tag(list->item, NULL, 0);
- if (grep_object(&opt, &rev, real_obj, list->name))
+ if (grep_object(&opt, paths, real_obj, list->name))
hit = 1;
}
return !hit;
projects / git.git / blobdiff