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-rw-r--r--builtin/grep.c200
1 files changed, 53 insertions, 147 deletions
diff --git a/builtin/grep.c b/builtin/grep.c
index fdf7131efd..5afee2f3a4 100644
--- a/builtin/grep.c
+++ b/builtin/grep.c
@@ -329,106 +329,6 @@ static int grep_config(const char *var, const char *value, void *cb)
return 0;
}
-/*
- * Return non-zero if max_depth is negative or path has no more then max_depth
- * slashes.
- */
-static int accept_subdir(const char *path, int max_depth)
-{
- if (max_depth < 0)
- return 1;
-
- while ((path = strchr(path, '/')) != NULL) {
- max_depth--;
- if (max_depth < 0)
- return 0;
- path++;
- }
- return 1;
-}
-
-/*
- * Return non-zero if name is a subdirectory of match and is not too deep.
- */
-static int is_subdir(const char *name, int namelen,
- const char *match, int matchlen, int max_depth)
-{
- if (matchlen > namelen || strncmp(name, match, matchlen))
- return 0;
-
- if (name[matchlen] == '\0') /* exact match */
- return 1;
-
- if (!matchlen || match[matchlen-1] == '/' || name[matchlen] == '/')
- return accept_subdir(name + matchlen + 1, max_depth);
-
- return 0;
-}
-
-/*
- * 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 max_depth)
-{
- int namelen, i;
- if (!paths || !*paths)
- return accept_subdir(name, max_depth);
- namelen = strlen(name);
- for (i = 0; paths[i]; i++) {
- const char *match = paths[i];
- int matchlen = strlen(match);
- const char *cp, *meta;
-
- if (is_subdir(name, namelen, match, matchlen, max_depth))
- return 1;
- if (!fnmatch(match, name, 0))
- return 1;
- if (name[namelen-1] != '/')
- continue;
-
- /* We are being asked if the directory ("name") 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.
- */
- for (cp = match, meta = NULL; cp - match < matchlen; cp++) {
- char ch = *cp;
- if (ch == '*' || ch == '[' || ch == '?') {
- meta = cp;
- break;
- }
- }
- if (!meta)
- meta = cp; /* fully literal */
-
- if (namelen <= meta - match) {
- /* Looking at "Documentation/" and
- * the pattern says "Documentation/howto/", or
- * "Documentation/diff*.txt". The name we
- * have should match prefix.
- */
- if (!memcmp(match, name, namelen))
- return 1;
- continue;
- }
-
- if (meta - match < namelen) {
- /* Looking at "Documentation/howto/" and
- * the pattern says "Documentation/h*";
- * match up to "Do.../h"; this avoids descending
- * into "Documentation/technical/".
- */
- if (!memcmp(match, name, meta - match))
- return 1;
- continue;
- }
- }
- return 0;
-}
-
static void *lock_and_read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size)
{
void *data;
@@ -581,7 +481,7 @@ static void run_pager(struct grep_opt *opt, const char *prefix)
free(argv);
}
-static int grep_cache(struct grep_opt *opt, const char **paths, int cached)
+static int grep_cache(struct grep_opt *opt, const struct pathspec *pathspec, int cached)
{
int hit = 0;
int nr;
@@ -591,7 +491,7 @@ static int grep_cache(struct grep_opt *opt, const char **paths, int cached)
struct cache_entry *ce = active_cache[nr];
if (!S_ISREG(ce->ce_mode))
continue;
- if (!pathspec_matches(paths, ce->name, opt->max_depth))
+ if (!match_pathspec_depth(pathspec, ce->name, ce_namelen(ce), 0, NULL))
continue;
/*
* If CE_VALID is on, we assume worktree file and its cache entry
@@ -618,44 +518,29 @@ static int grep_cache(struct grep_opt *opt, const char **paths, int cached)
return hit;
}
-static int grep_tree(struct grep_opt *opt, const char **paths,
- struct tree_desc *tree,
- const char *tree_name, const char *base)
+static int grep_tree(struct grep_opt *opt, const struct pathspec *pathspec,
+ struct tree_desc *tree, struct strbuf *base, int tn_len)
{
- int len;
- int hit = 0;
+ int hit = 0, matched = 0;
struct name_entry entry;
- char *down;
- int tn_len = strlen(tree_name);
- struct strbuf pathbuf;
-
- strbuf_init(&pathbuf, PATH_MAX + tn_len);
-
- if (tn_len) {
- strbuf_add(&pathbuf, tree_name, tn_len);
- strbuf_addch(&pathbuf, ':');
- tn_len = pathbuf.len;
- }
- strbuf_addstr(&pathbuf, base);
- len = pathbuf.len;
+ int old_baselen = base->len;
while (tree_entry(tree, &entry)) {
int te_len = tree_entry_len(entry.path, entry.sha1);
- pathbuf.len = len;
- strbuf_add(&pathbuf, entry.path, te_len);
-
- if (S_ISDIR(entry.mode))
- /* Match "abc/" against pathspec to
- * decide if we want to descend into "abc"
- * directory.
- */
- strbuf_addch(&pathbuf, '/');
-
- down = pathbuf.buf + tn_len;
- if (!pathspec_matches(paths, down, opt->max_depth))
- ;
- else if (S_ISREG(entry.mode))
- hit |= grep_sha1(opt, entry.sha1, pathbuf.buf, tn_len);
+
+ if (matched != 2) {
+ matched = tree_entry_interesting(&entry, base, tn_len, pathspec);
+ if (matched == -1)
+ break; /* no more matches */
+ if (!matched)
+ continue;
+ }
+
+ strbuf_add(base, entry.path, te_len);
+
+ if (S_ISREG(entry.mode)) {
+ hit |= grep_sha1(opt, entry.sha1, base->buf, tn_len);
+ }
else if (S_ISDIR(entry.mode)) {
enum object_type type;
struct tree_desc sub;
@@ -666,18 +551,21 @@ static int grep_tree(struct grep_opt *opt, const char **paths,
if (!data)
die("unable to read tree (%s)",
sha1_to_hex(entry.sha1));
+
+ strbuf_addch(base, '/');
init_tree_desc(&sub, data, size);
- hit |= grep_tree(opt, paths, &sub, tree_name, down);
+ hit |= grep_tree(opt, pathspec, &sub, base, tn_len);
free(data);
}
+ strbuf_setlen(base, old_baselen);
+
if (hit && opt->status_only)
break;
}
- strbuf_release(&pathbuf);
return hit;
}
-static int grep_object(struct grep_opt *opt, const char **paths,
+static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec,
struct object *obj, const char *name)
{
if (obj->type == OBJ_BLOB)
@@ -686,20 +574,30 @@ static int grep_object(struct grep_opt *opt, const char **paths,
struct tree_desc tree;
void *data;
unsigned long size;
- int hit;
+ struct strbuf base;
+ int hit, len;
+
data = read_object_with_reference(obj->sha1, tree_type,
&size, NULL);
if (!data)
die("unable to read tree (%s)", sha1_to_hex(obj->sha1));
+
+ len = name ? strlen(name) : 0;
+ strbuf_init(&base, PATH_MAX + len + 1);
+ if (len) {
+ strbuf_add(&base, name, len);
+ strbuf_addch(&base, ':');
+ }
init_tree_desc(&tree, data, size);
- hit = grep_tree(opt, paths, &tree, name, "");
+ hit = grep_tree(opt, pathspec, &tree, &base, base.len);
+ strbuf_release(&base);
free(data);
return hit;
}
die("unable to grep from object of type %s", typename(obj->type));
}
-static int grep_objects(struct grep_opt *opt, const char **paths,
+static int grep_objects(struct grep_opt *opt, const struct pathspec *pathspec,
const struct object_array *list)
{
unsigned int i;
@@ -709,7 +607,7 @@ static int grep_objects(struct grep_opt *opt, const char **paths,
for (i = 0; i < nr; i++) {
struct object *real_obj;
real_obj = deref_tag(list->objects[i].item, NULL, 0);
- if (grep_object(opt, paths, real_obj, list->objects[i].name)) {
+ if (grep_object(opt, pathspec, real_obj, list->objects[i].name)) {
hit = 1;
if (opt->status_only)
break;
@@ -718,7 +616,7 @@ static int grep_objects(struct grep_opt *opt, const char **paths,
return hit;
}
-static int grep_directory(struct grep_opt *opt, const char **paths)
+static int grep_directory(struct grep_opt *opt, const struct pathspec *pathspec)
{
struct dir_struct dir;
int i, hit = 0;
@@ -726,8 +624,12 @@ static int grep_directory(struct grep_opt *opt, const char **paths)
memset(&dir, 0, sizeof(dir));
setup_standard_excludes(&dir);
- fill_directory(&dir, paths);
+ fill_directory(&dir, pathspec->raw);
for (i = 0; i < dir.nr; i++) {
+ const char *name = dir.entries[i]->name;
+ int namelen = strlen(name);
+ if (!match_pathspec_depth(pathspec, name, namelen, 0, NULL))
+ continue;
hit |= grep_file(opt, dir.entries[i]->name);
if (hit && opt->status_only)
break;
@@ -832,6 +734,7 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
struct grep_opt opt;
struct object_array list = OBJECT_ARRAY_INIT;
const char **paths = NULL;
+ struct pathspec pathspec;
struct string_list path_list = STRING_LIST_INIT_NODUP;
int i;
int dummy;
@@ -1059,6 +962,9 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
paths[0] = prefix;
paths[1] = NULL;
}
+ init_pathspec(&pathspec, paths);
+ pathspec.max_depth = opt.max_depth;
+ pathspec.recursive = 1;
if (show_in_pager && (cached || list.nr))
die("--open-files-in-pager only works on the worktree");
@@ -1089,16 +995,16 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
die("--cached cannot be used with --no-index.");
if (list.nr)
die("--no-index cannot be used with revs.");
- hit = grep_directory(&opt, paths);
+ hit = grep_directory(&opt, &pathspec);
} else if (!list.nr) {
if (!cached)
setup_work_tree();
- hit = grep_cache(&opt, paths, cached);
+ hit = grep_cache(&opt, &pathspec, cached);
} else {
if (cached)
die("both --cached and trees are given.");
- hit = grep_objects(&opt, paths, &list);
+ hit = grep_objects(&opt, &pathspec, &list);
}
if (use_threads)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 11:24:00 +0000