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-rw-r--r--dir.c203
1 files changed, 136 insertions, 67 deletions
diff --git a/dir.c b/dir.c
index ed1510fbc8..0015cc54f4 100644
--- a/dir.c
+++ b/dir.c
@@ -288,9 +288,24 @@ int match_pathspec_depth(const struct pathspec *ps,
return retval;
}
+/*
+ * Return the length of the "simple" part of a path match limiter.
+ */
+static int simple_length(const char *match)
+{
+ int len = -1;
+
+ for (;;) {
+ unsigned char c = *match++;
+ len++;
+ if (c == '\0' || is_glob_special(c))
+ return len;
+ }
+}
+
static int no_wildcard(const char *string)
{
- return string[strcspn(string, "*?[{\\")] == '\0';
+ return string[simple_length(string)] == '\0';
}
void add_exclude(const char *string, const char *base,
@@ -326,8 +341,7 @@ void add_exclude(const char *string, const char *base,
x->flags = flags;
if (!strchr(string, '/'))
x->flags |= EXC_FLAG_NODIR;
- if (no_wildcard(string))
- x->flags |= EXC_FLAG_NOWILDCARD;
+ x->nowildcardlen = simple_length(string);
if (*string == '*' && no_wildcard(string+1))
x->flags |= EXC_FLAG_ENDSWITH;
ALLOC_GROW(which->excludes, which->nr + 1, which->alloc);
@@ -498,62 +512,74 @@ int excluded_from_list(const char *pathname,
{
int i;
- if (el->nr) {
- for (i = el->nr - 1; 0 <= i; i--) {
- struct exclude *x = el->excludes[i];
- const char *exclude = x->pattern;
- int to_exclude = x->to_exclude;
-
- if (x->flags & EXC_FLAG_MUSTBEDIR) {
- if (*dtype == DT_UNKNOWN)
- *dtype = get_dtype(NULL, pathname, pathlen);
- if (*dtype != DT_DIR)
- continue;
- }
+ if (!el->nr)
+ return -1; /* undefined */
- if (x->flags & EXC_FLAG_NODIR) {
- /* match basename */
- if (x->flags & EXC_FLAG_NOWILDCARD) {
- if (!strcmp_icase(exclude, basename))
- return to_exclude;
- } else if (x->flags & EXC_FLAG_ENDSWITH) {
- if (x->patternlen - 1 <= pathlen &&
- !strcmp_icase(exclude + 1, pathname + pathlen - x->patternlen + 1))
- return to_exclude;
- } else {
- if (fnmatch_icase(exclude, basename, 0) == 0)
- return to_exclude;
- }
- }
- else {
- /* match with FNM_PATHNAME:
- * exclude has base (baselen long) implicitly
- * in front of it.
- */
- int baselen = x->baselen;
- if (*exclude == '/')
- exclude++;
-
- if (pathlen < baselen ||
- (baselen && pathname[baselen-1] != '/') ||
- strncmp_icase(pathname, x->base, baselen))
- continue;
-
- if (x->flags & EXC_FLAG_NOWILDCARD) {
- if (!strcmp_icase(exclude, pathname + baselen))
- return to_exclude;
- } else {
- if (fnmatch_icase(exclude, pathname+baselen,
- FNM_PATHNAME) == 0)
- return to_exclude;
- }
+ for (i = el->nr - 1; 0 <= i; i--) {
+ struct exclude *x = el->excludes[i];
+ const char *name, *exclude = x->pattern;
+ int to_exclude = x->to_exclude;
+ int namelen, prefix = x->nowildcardlen;
+
+ if (x->flags & EXC_FLAG_MUSTBEDIR) {
+ if (*dtype == DT_UNKNOWN)
+ *dtype = get_dtype(NULL, pathname, pathlen);
+ if (*dtype != DT_DIR)
+ continue;
+ }
+
+ if (x->flags & EXC_FLAG_NODIR) {
+ /* match basename */
+ if (prefix == x->patternlen) {
+ if (!strcmp_icase(exclude, basename))
+ return to_exclude;
+ } else if (x->flags & EXC_FLAG_ENDSWITH) {
+ if (x->patternlen - 1 <= pathlen &&
+ !strcmp_icase(exclude + 1, pathname + pathlen - x->patternlen + 1))
+ return to_exclude;
+ } else {
+ if (fnmatch_icase(exclude, basename, 0) == 0)
+ return to_exclude;
}
+ continue;
+ }
+
+ /* match with FNM_PATHNAME:
+ * exclude has base (baselen long) implicitly in front of it.
+ */
+ if (*exclude == '/') {
+ exclude++;
+ prefix--;
+ }
+
+ if (pathlen < x->baselen ||
+ (x->baselen && pathname[x->baselen-1] != '/') ||
+ strncmp_icase(pathname, x->base, x->baselen))
+ continue;
+
+ namelen = x->baselen ? pathlen - x->baselen : pathlen;
+ name = pathname + pathlen - namelen;
+
+ /* if the non-wildcard part is longer than the
+ remaining pathname, surely it cannot match */
+ if (prefix > namelen)
+ continue;
+
+ if (prefix) {
+ if (strncmp_icase(exclude, name, prefix))
+ continue;
+ exclude += prefix;
+ name += prefix;
+ namelen -= prefix;
}
+
+ if (!namelen || !fnmatch_icase(exclude, name, FNM_PATHNAME))
+ return to_exclude;
}
return -1; /* undecided */
}
-int excluded(struct dir_struct *dir, const char *pathname, int *dtype_p)
+static int excluded(struct dir_struct *dir, const char *pathname, int *dtype_p)
{
int pathlen = strlen(pathname);
int st;
@@ -573,6 +599,64 @@ int excluded(struct dir_struct *dir, const char *pathname, int *dtype_p)
return 0;
}
+void path_exclude_check_init(struct path_exclude_check *check,
+ struct dir_struct *dir)
+{
+ check->dir = dir;
+ strbuf_init(&check->path, 256);
+}
+
+void path_exclude_check_clear(struct path_exclude_check *check)
+{
+ strbuf_release(&check->path);
+}
+
+/*
+ * Is this name excluded? This is for a caller like show_files() that
+ * do not honor directory hierarchy and iterate through paths that are
+ * possibly in an ignored directory.
+ *
+ * A path to a directory known to be excluded is left in check->path to
+ * optimize for repeated checks for files in the same excluded directory.
+ */
+int path_excluded(struct path_exclude_check *check,
+ const char *name, int namelen, int *dtype)
+{
+ int i;
+ struct strbuf *path = &check->path;
+
+ /*
+ * we allow the caller to pass namelen as an optimization; it
+ * must match the length of the name, as we eventually call
+ * excluded() on the whole name string.
+ */
+ if (namelen < 0)
+ namelen = strlen(name);
+
+ if (path->len &&
+ path->len <= namelen &&
+ !memcmp(name, path->buf, path->len) &&
+ (!name[path->len] || name[path->len] == '/'))
+ return 1;
+
+ strbuf_setlen(path, 0);
+ for (i = 0; name[i]; i++) {
+ int ch = name[i];
+
+ if (ch == '/') {
+ int dt = DT_DIR;
+ if (excluded(check->dir, path->buf, &dt))
+ return 1;
+ }
+ strbuf_addch(path, ch);
+ }
+
+ /* An entry in the index; cannot be a directory with subentries */
+ strbuf_setlen(path, 0);
+
+ return excluded(check->dir, name, dtype);
+}
+
static struct dir_entry *dir_entry_new(const char *pathname, int len)
{
struct dir_entry *ent;
@@ -997,21 +1081,6 @@ static int cmp_name(const void *p1, const void *p2)
e2->name, e2->len);
}
-/*
- * Return the length of the "simple" part of a path match limiter.
- */
-static int simple_length(const char *match)
-{
- int len = -1;
-
- for (;;) {
- unsigned char c = *match++;
- len++;
- if (c == '\0' || is_glob_special(c))
- return len;
- }
-}
-
static struct path_simplify *create_simplify(const char **pathspec)
{
int nr, alloc = 0;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 10:32:57 +0000