summaryrefslogtreecommitdiff
path: root/dir.c
diff options
context:
space:
mode:
Diffstat (limited to 'dir.c')
-rw-r--r--dir.c256
1 files changed, 167 insertions, 89 deletions
diff --git a/dir.c b/dir.c
index 2c02b312b7..5a83aa7897 100644
--- a/dir.c
+++ b/dir.c
@@ -288,48 +288,89 @@ 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 parse_exclude_pattern(const char **pattern,
+ int *patternlen,
+ int *flags,
+ int *nowildcardlen)
+{
+ const char *p = *pattern;
+ size_t i, len;
+
+ *flags = 0;
+ if (*p == '!') {
+ *flags |= EXC_FLAG_NEGATIVE;
+ p++;
+ }
+ len = strlen(p);
+ if (len && p[len - 1] == '/') {
+ len--;
+ *flags |= EXC_FLAG_MUSTBEDIR;
+ }
+ for (i = 0; i < len; i++) {
+ if (p[i] == '/')
+ break;
+ }
+ if (i == len)
+ *flags |= EXC_FLAG_NODIR;
+ *nowildcardlen = simple_length(p);
+ /*
+ * we should have excluded the trailing slash from 'p' too,
+ * but that's one more allocation. Instead just make sure
+ * nowildcardlen does not exceed real patternlen
+ */
+ if (*nowildcardlen > len)
+ *nowildcardlen = len;
+ if (*p == '*' && no_wildcard(p + 1))
+ *flags |= EXC_FLAG_ENDSWITH;
+ *pattern = p;
+ *patternlen = len;
}
void add_exclude(const char *string, const char *base,
int baselen, struct exclude_list *which)
{
struct exclude *x;
- size_t len;
- int to_exclude = 1;
- int flags = 0;
+ int patternlen;
+ int flags;
+ int nowildcardlen;
- if (*string == '!') {
- to_exclude = 0;
- string++;
- }
- len = strlen(string);
- if (len && string[len - 1] == '/') {
+ parse_exclude_pattern(&string, &patternlen, &flags, &nowildcardlen);
+ if (flags & EXC_FLAG_MUSTBEDIR) {
char *s;
- x = xmalloc(sizeof(*x) + len);
+ x = xmalloc(sizeof(*x) + patternlen + 1);
s = (char *)(x+1);
- memcpy(s, string, len - 1);
- s[len - 1] = '\0';
- string = s;
+ memcpy(s, string, patternlen);
+ s[patternlen] = '\0';
x->pattern = s;
- flags = EXC_FLAG_MUSTBEDIR;
} else {
x = xmalloc(sizeof(*x));
x->pattern = string;
}
- x->to_exclude = to_exclude;
- x->patternlen = strlen(string);
+ x->patternlen = patternlen;
+ x->nowildcardlen = nowildcardlen;
x->base = base;
x->baselen = baselen;
x->flags = flags;
- if (!strchr(string, '/'))
- x->flags |= EXC_FLAG_NODIR;
- if (no_wildcard(string))
- x->flags |= EXC_FLAG_NOWILDCARD;
- if (*string == '*' && no_wildcard(string+1))
- x->flags |= EXC_FLAG_ENDSWITH;
ALLOC_GROW(which->excludes, which->nr + 1, which->alloc);
which->excludes[which->nr++] = x;
}
@@ -383,6 +424,8 @@ int add_excludes_from_file_to_list(const char *fname,
fd = open(fname, O_RDONLY);
if (fd < 0 || fstat(fd, &st) < 0) {
+ if (errno != ENOENT)
+ warn_on_inaccessible(fname);
if (0 <= fd)
close(fd);
if (!check_index ||
@@ -489,6 +532,72 @@ static void prep_exclude(struct dir_struct *dir, const char *base, int baselen)
dir->basebuf[baselen] = '\0';
}
+int match_basename(const char *basename, int basenamelen,
+ const char *pattern, int prefix, int patternlen,
+ int flags)
+{
+ if (prefix == patternlen) {
+ if (!strcmp_icase(pattern, basename))
+ return 1;
+ } else if (flags & EXC_FLAG_ENDSWITH) {
+ if (patternlen - 1 <= basenamelen &&
+ !strcmp_icase(pattern + 1,
+ basename + basenamelen - patternlen + 1))
+ return 1;
+ } else {
+ if (fnmatch_icase(pattern, basename, 0) == 0)
+ return 1;
+ }
+ return 0;
+}
+
+int match_pathname(const char *pathname, int pathlen,
+ const char *base, int baselen,
+ const char *pattern, int prefix, int patternlen,
+ int flags)
+{
+ const char *name;
+ int namelen;
+
+ /*
+ * match with FNM_PATHNAME; the pattern has base implicitly
+ * in front of it.
+ */
+ if (*pattern == '/') {
+ pattern++;
+ prefix--;
+ }
+
+ /*
+ * baselen does not count the trailing slash. base[] may or
+ * may not end with a trailing slash though.
+ */
+ if (pathlen < baselen + 1 ||
+ (baselen && pathname[baselen] != '/') ||
+ strncmp_icase(pathname, base, baselen))
+ return 0;
+
+ namelen = baselen ? pathlen - baselen - 1 : pathlen;
+ name = pathname + pathlen - namelen;
+
+ if (prefix) {
+ /*
+ * if the non-wildcard part is longer than the
+ * remaining pathname, surely it cannot match.
+ */
+ if (prefix > namelen)
+ return 0;
+
+ if (strncmp_icase(pattern, name, prefix))
+ return 0;
+ pattern += prefix;
+ name += prefix;
+ namelen -= prefix;
+ }
+
+ return fnmatch_icase(pattern, name, FNM_PATHNAME) == 0;
+}
+
/* Scan the list and let the last match determine the fate.
* Return 1 for exclude, 0 for include and -1 for undecided.
*/
@@ -498,57 +607,36 @@ 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 *exclude = x->pattern;
+ int to_exclude = x->flags & EXC_FLAG_NEGATIVE ? 0 : 1;
+ int 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) {
+ if (match_basename(basename,
+ pathlen - (basename - pathname),
+ exclude, prefix, x->patternlen,
+ x->flags))
+ return to_exclude;
+ continue;
+ }
+
+ assert(x->baselen == 0 || x->base[x->baselen - 1] == '/');
+ if (match_pathname(pathname, pathlen,
+ x->base, x->baselen ? x->baselen - 1 : 0,
+ exclude, prefix, x->patternlen, x->flags))
+ return to_exclude;
}
return -1; /* undecided */
}
@@ -1055,21 +1143,6 @@ 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;
@@ -1292,12 +1365,17 @@ int remove_dir_recursively(struct strbuf *path, int flag)
void setup_standard_excludes(struct dir_struct *dir)
{
const char *path;
+ char *xdg_path;
dir->exclude_per_dir = ".gitignore";
path = git_path("info/exclude");
- if (!access(path, R_OK))
+ if (!excludes_file) {
+ home_config_paths(NULL, &xdg_path, "ignore");
+ excludes_file = xdg_path;
+ }
+ if (!access_or_warn(path, R_OK))
add_excludes_from_file(dir, path);
- if (excludes_file && !access(excludes_file, R_OK))
+ if (excludes_file && !access_or_warn(excludes_file, R_OK))
add_excludes_from_file(dir, excludes_file);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-17 00:58:47 +0000