Document --unified/-U option

diff --git a/dir.c b/dir.c
index d3063520b03c9c5f608cbd9e97f6b414adb4c5af..8d8faf5d788b402d5fd4f5d724954fd2ee178fdb 100644 (file)
--- a/dir.c
+++ b/dir.c
@@ -271,27 +271,34 @@ int excluded(struct dir_struct *dir, const char *pathname)
        return 0;
 }
 
-struct dir_entry *dir_add_name(struct dir_struct *dir, const char *pathname, int len)
-{
+static struct dir_entry *dir_entry_new(const char *pathname, int len) {
        struct dir_entry *ent;
 
-       if (cache_name_pos(pathname, len) >= 0)
-               return NULL;
-
-       if (dir->nr == dir->alloc) {
-               int alloc = alloc_nr(dir->alloc);
-               dir->alloc = alloc;
-               dir->entries = xrealloc(dir->entries, alloc*sizeof(ent));
-       }
        ent = xmalloc(sizeof(*ent) + len + 1);
-       ent->ignored = ent->ignored_dir = 0;
        ent->len = len;
        memcpy(ent->name, pathname, len);
        ent->name[len] = 0;
-       dir->entries[dir->nr++] = ent;
        return ent;
 }
 
+struct dir_entry *dir_add_name(struct dir_struct *dir, const char *pathname, int len)
+{
+       if (cache_name_pos(pathname, len) >= 0)
+               return NULL;
+
+       ALLOC_GROW(dir->entries, dir->nr+1, dir->alloc);
+       return dir->entries[dir->nr++] = dir_entry_new(pathname, len);
+}
+
+struct dir_entry *dir_add_ignored(struct dir_struct *dir, const char *pathname, int len)
+{
+       if (cache_name_pos(pathname, len) >= 0)
+               return NULL;
+
+       ALLOC_GROW(dir->ignored, dir->ignored_nr+1, dir->ignored_alloc);
+       return dir->ignored[dir->ignored_nr++] = dir_entry_new(pathname, len);
+}
+
 enum exist_status {
        index_nonexistent = 0,
        index_directory,
@@ -321,7 +328,7 @@ static enum exist_status directory_exists_in_index(const char *dirname, int len)
                        break;
                if (endchar == '/')
                        return index_directory;
-               if (!endchar && S_ISDIRLNK(ntohl(ce->ce_mode)))
+               if (!endchar && S_ISGITLINK(ntohl(ce->ce_mode)))
                        return index_gitdir;
        }
        return index_nonexistent;
@@ -356,7 +363,7 @@ static enum exist_status directory_exists_in_index(const char *dirname, int len)
  *      also true and the directory is empty, in which case
  *      we just ignore it entirely.
  *  (b) if it looks like a git directory, and we don't have
- *      'no_dirlinks' set we treat it as a gitlink, and show it
+ *      'no_gitlinks' set we treat it as a gitlink, and show it
  *      as a directory.
  *  (c) otherwise, we recurse into it.
  */
@@ -383,7 +390,7 @@ static enum directory_treatment treat_directory(struct dir_struct *dir,
        case index_nonexistent:
                if (dir->show_other_directories)
                        break;
-               if (!dir->no_dirlinks) {
+               if (!dir->no_gitlinks) {
                        unsigned char sha1[20];
                        if (resolve_gitlink_ref(dirname, "HEAD", sha1) == 0)
                                return show_directory;
@@ -424,6 +431,18 @@ static int simplify_away(const char *path, int pathlen, const struct path_simpli
        return 0;
 }
 
+static int in_pathspec(const char *path, int len, const struct path_simplify *simplify)
+{
+       if (simplify) {
+               for (; simplify->path; simplify++) {
+                       if (len == simplify->len
+                           && !memcmp(path, simplify->path, len))
+                               return 1;
+               }
+       }
+       return 0;
+}
+
 /*
  * Read a directory tree. We currently ignore anything but
  * directories, regular files and symlinks. That's because git
@@ -448,6 +467,7 @@ static int read_directory_recursive(struct dir_struct *dir, const char *path, co
 
                while ((de = readdir(fdir)) != NULL) {
                        int len;
+                       int exclude;
 
                        if ((de->d_name[0] == '.') &&
                            (de->d_name[1] == 0 ||
@@ -461,7 +481,12 @@ static int read_directory_recursive(struct dir_struct *dir, const char *path, co
                        memcpy(fullname + baselen, de->d_name, len+1);
                        if (simplify_away(fullname, baselen + len, simplify))
                                continue;
-                       if (excluded(dir, fullname) != dir->show_ignored) {
+
+                       exclude = excluded(dir, fullname);
+                       if (exclude && dir->collect_ignored
+                           && in_pathspec(fullname, baselen + len, simplify))
+                               dir_add_ignored(dir, fullname, baselen + len);
+                       if (exclude != dir->show_ignored) {
                                if (!dir->show_ignored || DTYPE(de) != DT_DIR) {
                                        continue;
                                }
@@ -484,6 +509,8 @@ static int read_directory_recursive(struct dir_struct *dir, const char *path, co
                                len++;
                                switch (treat_directory(dir, fullname, baselen + len, simplify)) {
                                case show_directory:
+                                       if (exclude != dir->show_ignored)
+                                               continue;
                                        break;
                                case recurse_into_directory:
                                        contents += read_directory_recursive(dir,
@@ -605,6 +632,7 @@ int read_directory(struct dir_struct *dir, const char *path, const char *base, i
        read_directory_recursive(dir, path, base, baselen, 0, simplify);
        free_simplify(simplify);
        qsort(dir->entries, dir->nr, sizeof(struct dir_entry *), cmp_name);
+       qsort(dir->ignored, dir->ignored_nr, sizeof(struct dir_entry *), cmp_name);
        return dir->nr;
 }