Merge branch 'sb/gpg-plug-fd-leak' into maint

[git.git] / attr.c

diff --git a/attr.c b/attr.c
index 887a9ae46b7044489845abf2072339271caf2d4a..8985c5c25b365276259838c1a50945b7e600dc31 100644 (file)
--- a/attr.c
+++ b/attr.c
@@ -115,6 +115,13 @@ struct attr_state {
        const char *setto;
 };
 
+struct pattern {
+       const char *pattern;
+       int patternlen;
+       int nowildcardlen;
+       int flags;              /* EXC_FLAG_* */
+};
+
 /*
  * One rule, as from a .gitattributes file.
  *
@@ -131,7 +138,7 @@ struct attr_state {
  */
 struct match_attr {
        union {
-               char *pattern;
+               struct pattern pat;
                struct git_attr *attr;
        } u;
        char is_macro;
@@ -241,9 +248,16 @@ static struct match_attr *parse_attr_line(const char *line, const char *src,
        if (is_macro)
                res->u.attr = git_attr_internal(name, namelen);
        else {
-               res->u.pattern = (char *)&(res->state[num_attr]);
-               memcpy(res->u.pattern, name, namelen);
-               res->u.pattern[namelen] = 0;
+               char *p = (char *)&(res->state[num_attr]);
+               memcpy(p, name, namelen);
+               res->u.pat.pattern = p;
+               parse_exclude_pattern(&res->u.pat.pattern,
+                                     &res->u.pat.patternlen,
+                                     &res->u.pat.flags,
+                                     &res->u.pat.nowildcardlen);
+               if (res->u.pat.flags & EXC_FLAG_NEGATIVE)
+                       die(_("Negative patterns are forbidden in git attributes\n"
+                             "Use '\\!' for literal leading exclamation."));
        }
        res->is_macro = is_macro;
        res->num_attr = num_attr;
@@ -277,6 +291,7 @@ static struct match_attr *parse_attr_line(const char *line, const char *src,
 static struct attr_stack {
        struct attr_stack *prev;
        char *origin;
+       size_t originlen;
        unsigned num_matches;
        unsigned alloc;
        struct match_attr **attrs;
@@ -535,6 +550,7 @@ static void bootstrap_attr_stack(void)
        if (!is_bare_repository() || direction == GIT_ATTR_INDEX) {
                elem = read_attr(GITATTRIBUTES_FILE, 1);
                elem->origin = xstrdup("");
+               elem->originlen = 0;
                elem->prev = attr_stack;
                attr_stack = elem;
                debug_push(elem);
@@ -548,18 +564,12 @@ static void bootstrap_attr_stack(void)
        attr_stack = elem;
 }
 
-static void prepare_attr_stack(const char *path)
+static void prepare_attr_stack(const char *path, int dirlen)
 {
        struct attr_stack *elem, *info;
-       int dirlen, len;
+       int len;
        const char *cp;
 
-       cp = strrchr(path, '/');
-       if (!cp)
-               dirlen = 0;
-       else
-               dirlen = cp - path;
-
        /*
         * At the bottom of the attribute stack is the built-in
         * set of attribute definitions, followed by the contents
@@ -628,7 +638,7 @@ static void prepare_attr_stack(const char *path)
                        strbuf_addstr(&pathbuf, GITATTRIBUTES_FILE);
                        elem = read_attr(pathbuf.buf, 0);
                        strbuf_setlen(&pathbuf, cp - path);
-                       elem->origin = strbuf_detach(&pathbuf, NULL);
+                       elem->origin = strbuf_detach(&pathbuf, &elem->originlen);
                        elem->prev = attr_stack;
                        attr_stack = elem;
                        debug_push(elem);
@@ -645,28 +655,26 @@ static void prepare_attr_stack(const char *path)
 }
 
 static int path_matches(const char *pathname, int pathlen,
-                       const char *pattern,
+                       const char *basename,
+                       const struct pattern *pat,
                        const char *base, int baselen)
 {
-       if (!strchr(pattern, '/')) {
-               /* match basename */
-               const char *basename = strrchr(pathname, '/');
-               basename = basename ? basename + 1 : pathname;
-               return (fnmatch_icase(pattern, basename, 0) == 0);
-       }
-       /*
-        * match with FNM_PATHNAME; the pattern has base implicitly
-        * in front of it.
-        */
-       if (*pattern == '/')
-               pattern++;
-       if (pathlen < baselen ||
-           (baselen && pathname[baselen] != '/') ||
-           strncmp(pathname, base, baselen))
+       const char *pattern = pat->pattern;
+       int prefix = pat->nowildcardlen;
+
+       if ((pat->flags & EXC_FLAG_MUSTBEDIR) &&
+           ((!pathlen) || (pathname[pathlen-1] != '/')))
                return 0;
-       if (baselen != 0)
-               baselen++;
-       return fnmatch_icase(pattern, pathname + baselen, FNM_PATHNAME) == 0;
+
+       if (pat->flags & EXC_FLAG_NODIR) {
+               return match_basename(basename,
+                                     pathlen - (basename - pathname),
+                                     pattern, prefix,
+                                     pat->patternlen, pat->flags);
+       }
+       return match_pathname(pathname, pathlen,
+                             base, baselen,
+                             pattern, prefix, pat->patternlen, pat->flags);
 }
 
 static int macroexpand_one(int attr_nr, int rem);
@@ -683,7 +691,7 @@ static int fill_one(const char *what, struct match_attr *a, int rem)
 
                if (*n == ATTR__UNKNOWN) {
                        debug_set(what,
-                                 a->is_macro ? a->u.attr->name : a->u.pattern,
+                                 a->is_macro ? a->u.attr->name : a->u.pat.pattern,
                                  attr, v);
                        *n = v;
                        rem--;
@@ -693,7 +701,8 @@ static int fill_one(const char *what, struct match_attr *a, int rem)
        return rem;
 }
 
-static int fill(const char *path, int pathlen, struct attr_stack *stk, int rem)
+static int fill(const char *path, int pathlen, const char *basename,
+               struct attr_stack *stk, int rem)
 {
        int i;
        const char *base = stk->origin ? stk->origin : "";
@@ -702,8 +711,8 @@ static int fill(const char *path, int pathlen, struct attr_stack *stk, int rem)
                struct match_attr *a = stk->attrs[i];
                if (a->is_macro)
                        continue;
-               if (path_matches(path, pathlen,
-                                a->u.pattern, base, strlen(base)))
+               if (path_matches(path, pathlen, basename,
+                                &a->u.pat, base, stk->originlen))
                        rem = fill_one("fill", a, rem);
        }
        return rem;
@@ -740,16 +749,29 @@ static int macroexpand_one(int attr_nr, int rem)
 static void collect_all_attrs(const char *path)
 {
        struct attr_stack *stk;
-       int i, pathlen, rem;
+       int i, pathlen, rem, dirlen;
+       const char *basename, *cp, *last_slash = NULL;
+
+       for (cp = path; *cp; cp++) {
+               if (*cp == '/' && cp[1])
+                       last_slash = cp;
+       }
+       pathlen = cp - path;
+       if (last_slash) {
+               basename = last_slash + 1;
+               dirlen = last_slash - path;
+       } else {
+               basename = path;
+               dirlen = 0;
+       }
 
-       prepare_attr_stack(path);
+       prepare_attr_stack(path, dirlen);
        for (i = 0; i < attr_nr; i++)
                check_all_attr[i].value = ATTR__UNKNOWN;
 
-       pathlen = strlen(path);
        rem = attr_nr;
        for (stk = attr_stack; 0 < rem && stk; stk = stk->prev)
-               rem = fill(path, pathlen, stk, rem);
+               rem = fill(path, pathlen, basename, stk, rem);
 }
 
 int git_check_attr(const char *path, int num, struct git_attr_check *check)