Git 2.1.2
[gitweb.git] / dir.c
diff --git a/dir.c b/dir.c
index 98bb50fbabb69d25443df8ca4d29e11dea746a60..fcb68729b1f559008e1797ff50f38acf81268d3d 100644 (file)
--- a/dir.c
+++ b/dir.c
@@ -49,16 +49,18 @@ int strncmp_icase(const char *a, const char *b, size_t count)
 
 int fnmatch_icase(const char *pattern, const char *string, int flags)
 {
-       return fnmatch(pattern, string, flags | (ignore_case ? FNM_CASEFOLD : 0));
+       return wildmatch(pattern, string,
+                        flags | (ignore_case ? WM_CASEFOLD : 0),
+                        NULL);
 }
 
-inline int git_fnmatch(const struct pathspec_item *item,
-                      const char *pattern, const char *string,
-                      int prefix)
+int git_fnmatch(const struct pathspec_item *item,
+               const char *pattern, const char *string,
+               int prefix)
 {
        if (prefix > 0) {
                if (ps_strncmp(item, pattern, string, prefix))
-                       return FNM_NOMATCH;
+                       return WM_NOMATCH;
                pattern += prefix;
                string += prefix;
        }
@@ -76,8 +78,9 @@ inline int git_fnmatch(const struct pathspec_item *item,
                                 NULL);
        else
                /* wildmatch has not learned no FNM_PATHNAME mode yet */
-               return fnmatch(pattern, string,
-                              item->magic & PATHSPEC_ICASE ? FNM_CASEFOLD : 0);
+               return wildmatch(pattern, string,
+                                item->magic & PATHSPEC_ICASE ? WM_CASEFOLD : 0,
+                                NULL);
 }
 
 static int fnmatch_icase_mem(const char *pattern, int patternlen,
@@ -503,6 +506,29 @@ void clear_exclude_list(struct exclude_list *el)
        el->filebuf = NULL;
 }
 
+static void trim_trailing_spaces(char *buf)
+{
+       char *p, *last_space = NULL;
+
+       for (p = buf; *p; p++)
+               switch (*p) {
+               case ' ':
+                       if (!last_space)
+                               last_space = p;
+                       break;
+               case '\\':
+                       p++;
+                       if (!*p)
+                               return;
+                       /* fallthrough */
+               default:
+                       last_space = NULL;
+               }
+
+       if (last_space)
+               *last_space = '\0';
+}
+
 int add_excludes_from_file_to_list(const char *fname,
                                   const char *base,
                                   int baselen,
@@ -531,8 +557,7 @@ int add_excludes_from_file_to_list(const char *fname,
                        buf = xrealloc(buf, size+1);
                        buf[size++] = '\n';
                }
-       }
-       else {
+       } else {
                size = xsize_t(st.st_size);
                if (size == 0) {
                        close(fd);
@@ -554,6 +579,7 @@ int add_excludes_from_file_to_list(const char *fname,
                if (buf[i] == '\n') {
                        if (entry != buf + i && entry[0] != '#') {
                                buf[i - (i && buf[i-1] == '\r')] = 0;
+                               trim_trailing_spaces(entry);
                                add_exclude(entry, base, baselen, el, lineno);
                        }
                        lineno++;
@@ -766,17 +792,19 @@ static void prep_exclude(struct dir_struct *dir, const char *base, int baselen)
 
        group = &dir->exclude_list_group[EXC_DIRS];
 
-       /* Pop the exclude lists from the EXCL_DIRS exclude_list_group
+       /*
+        * Pop the exclude lists from the EXCL_DIRS exclude_list_group
         * which originate from directories not in the prefix of the
-        * path being checked. */
+        * path being checked.
+        */
        while ((stk = dir->exclude_stack) != NULL) {
                if (stk->baselen <= baselen &&
-                   !strncmp(dir->basebuf, base, stk->baselen))
+                   !strncmp(dir->basebuf.buf, base, stk->baselen))
                        break;
                el = &group->el[dir->exclude_stack->exclude_ix];
                dir->exclude_stack = stk->prev;
                dir->exclude = NULL;
-               free((char *)el->src); /* see strdup() below */
+               free((char *)el->src); /* see strbuf_detach() below */
                clear_exclude_list(el);
                free(stk);
                group->nr--;
@@ -786,8 +814,17 @@ static void prep_exclude(struct dir_struct *dir, const char *base, int baselen)
        if (dir->exclude)
                return;
 
+       /*
+        * Lazy initialization. All call sites currently just
+        * memset(dir, 0, sizeof(*dir)) before use. Changing all of
+        * them seems lots of work for little benefit.
+        */
+       if (!dir->basebuf.buf)
+               strbuf_init(&dir->basebuf, PATH_MAX);
+
        /* Read from the parent directories and push them down. */
        current = stk ? stk->baselen : -1;
+       strbuf_setlen(&dir->basebuf, current < 0 ? 0 : current);
        while (current < baselen) {
                struct exclude_stack *stk = xcalloc(1, sizeof(*stk));
                const char *cp;
@@ -795,8 +832,7 @@ static void prep_exclude(struct dir_struct *dir, const char *base, int baselen)
                if (current < 0) {
                        cp = base;
                        current = 0;
-               }
-               else {
+               } else {
                        cp = strchr(base + current + 1, '/');
                        if (!cp)
                                die("oops in prep_exclude");
@@ -806,48 +842,47 @@ static void prep_exclude(struct dir_struct *dir, const char *base, int baselen)
                stk->baselen = cp - base;
                stk->exclude_ix = group->nr;
                el = add_exclude_list(dir, EXC_DIRS, NULL);
-               memcpy(dir->basebuf + current, base + current,
-                      stk->baselen - current);
+               strbuf_add(&dir->basebuf, base + current, stk->baselen - current);
+               assert(stk->baselen == dir->basebuf.len);
 
                /* Abort if the directory is excluded */
                if (stk->baselen) {
                        int dt = DT_DIR;
-                       dir->basebuf[stk->baselen - 1] = 0;
+                       dir->basebuf.buf[stk->baselen - 1] = 0;
                        dir->exclude = last_exclude_matching_from_lists(dir,
-                               dir->basebuf, stk->baselen - 1,
-                               dir->basebuf + current, &dt);
-                       dir->basebuf[stk->baselen - 1] = '/';
+                               dir->basebuf.buf, stk->baselen - 1,
+                               dir->basebuf.buf + current, &dt);
+                       dir->basebuf.buf[stk->baselen - 1] = '/';
                        if (dir->exclude &&
                            dir->exclude->flags & EXC_FLAG_NEGATIVE)
                                dir->exclude = NULL;
                        if (dir->exclude) {
-                               dir->basebuf[stk->baselen] = 0;
                                dir->exclude_stack = stk;
                                return;
                        }
                }
 
-               /* Try to read per-directory file unless path is too long */
-               if (dir->exclude_per_dir &&
-                   stk->baselen + strlen(dir->exclude_per_dir) < PATH_MAX) {
-                       strcpy(dir->basebuf + stk->baselen,
-                                       dir->exclude_per_dir);
+               /* Try to read per-directory file */
+               if (dir->exclude_per_dir) {
                        /*
                         * dir->basebuf gets reused by the traversal, but we
                         * need fname to remain unchanged to ensure the src
                         * member of each struct exclude correctly
                         * back-references its source file.  Other invocations
                         * of add_exclude_list provide stable strings, so we
-                        * strdup() and free() here in the caller.
+                        * strbuf_detach() and free() here in the caller.
                         */
-                       el->src = strdup(dir->basebuf);
-                       add_excludes_from_file_to_list(dir->basebuf,
-                                       dir->basebuf, stk->baselen, el, 1);
+                       struct strbuf sb = STRBUF_INIT;
+                       strbuf_addbuf(&sb, &dir->basebuf);
+                       strbuf_addstr(&sb, dir->exclude_per_dir);
+                       el->src = strbuf_detach(&sb, NULL);
+                       add_excludes_from_file_to_list(el->src, el->src,
+                                                      stk->baselen, el, 1);
                }
                dir->exclude_stack = stk;
                current = stk->baselen;
        }
-       dir->basebuf[baselen] = '\0';
+       strbuf_setlen(&dir->basebuf, baselen);
 }
 
 /*
@@ -1327,8 +1362,7 @@ static int cmp_name(const void *p1, const void *p2)
        const struct dir_entry *e1 = *(const struct dir_entry **)p1;
        const struct dir_entry *e2 = *(const struct dir_entry **)p2;
 
-       return cache_name_compare(e1->name, e1->len,
-                                 e2->name, e2->len);
+       return name_compare(e1->name, e1->len, e2->name, e2->len);
 }
 
 static struct path_simplify *create_simplify(const char **pathspec)
@@ -1341,10 +1375,7 @@ static struct path_simplify *create_simplify(const char **pathspec)
 
        for (nr = 0 ; ; nr++) {
                const char *match;
-               if (nr >= alloc) {
-                       alloc = alloc_nr(alloc);
-                       simplify = xrealloc(simplify, alloc * sizeof(*simplify));
-               }
+               ALLOC_GROW(simplify, nr + 1, alloc);
                match = *pathspec++;
                if (!match)
                        break;
@@ -1648,4 +1679,5 @@ void clear_directory(struct dir_struct *dir)
                free(stk);
                stk = prev;
        }
+       strbuf_release(&dir->basebuf);
 }