* Copyright (C) Linus Torvalds, 2005
*/
#include "cache.h"
+#include "blob.h"
+#include "tree.h"
+#include "quote.h"
-static int list(unsigned char *sha1)
+static int line_termination = '\n';
+#define LS_RECURSIVE 1
+#define LS_TREE_ONLY 2
+#define LS_SHOW_TREES 4
+#define LS_NAME_ONLY 8
+static int ls_options = 0;
+const char **pathspec;
+static int chomp_prefix = 0;
+static const char *prefix;
+
+static const char ls_tree_usage[] =
+ "git-ls-tree [-d] [-r] [-t] [-z] [--name-only] [--name-status] [--full-name] <tree-ish> [path...]";
+
+static int show_recursive(const char *base, int baselen, const char *pathname)
{
- void *buffer;
- unsigned long size;
- char type[20];
-
- buffer = read_sha1_file(sha1, type, &size);
- if (!buffer)
- die("unable to read sha1 file");
- if (strcmp(type, "tree"))
- die("expected a 'tree' node");
- while (size) {
- int len = strlen(buffer)+1;
- unsigned char *sha1 = buffer + len;
- char *path = strchr(buffer, ' ')+1;
- unsigned int mode;
- unsigned char *type;
-
- if (size < len + 20 || sscanf(buffer, "%o", &mode) != 1)
- die("corrupt 'tree' file");
- buffer = sha1 + 20;
- size -= len + 20;
- /* XXX: We do some ugly mode heuristics here.
- * It seems not worth it to read each file just to get this
- * and the file size. -- pasky@ucw.cz */
- type = S_ISDIR(mode) ? "tree" : "blob";
- printf("%03o\t%s\t%s\t%s\n", mode, type, sha1_to_hex(sha1), path);
+ const char **s;
+
+ if (ls_options & LS_RECURSIVE)
+ return 1;
+
+ s = pathspec;
+ if (!s)
+ return 0;
+
+ for (;;) {
+ const char *spec = *s++;
+ int len, speclen;
+
+ if (!spec)
+ return 0;
+ if (strncmp(base, spec, baselen))
+ continue;
+ len = strlen(pathname);
+ spec += baselen;
+ speclen = strlen(spec);
+ if (speclen <= len)
+ continue;
+ if (memcmp(pathname, spec, len))
+ continue;
+ return 1;
}
- return 0;
}
-int main(int argc, char **argv)
+static int show_tree(unsigned char *sha1, const char *base, int baselen,
+ const char *pathname, unsigned mode, int stage)
+{
+ int retval = 0;
+ const char *type = "blob";
+
+ if (S_ISDIR(mode)) {
+ if (show_recursive(base, baselen, pathname)) {
+ retval = READ_TREE_RECURSIVE;
+ if (!(ls_options & LS_SHOW_TREES))
+ return retval;
+ }
+ type = "tree";
+ }
+ else if (ls_options & LS_TREE_ONLY)
+ return 0;
+
+ if (chomp_prefix &&
+ (baselen < chomp_prefix || memcmp(prefix, base, chomp_prefix)))
+ return 0;
+
+ if (!(ls_options & LS_NAME_ONLY))
+ printf("%06o %s %s\t", mode, type, sha1_to_hex(sha1));
+ write_name_quoted(base + chomp_prefix, baselen - chomp_prefix,
+ pathname,
+ line_termination, stdout);
+ putchar(line_termination);
+ return retval;
+}
+
+int main(int argc, const char **argv)
{
unsigned char sha1[20];
+ struct tree *tree;
+
+ prefix = setup_git_directory();
+ if (prefix && *prefix)
+ chomp_prefix = strlen(prefix);
+ while (1 < argc && argv[1][0] == '-') {
+ switch (argv[1][1]) {
+ case 'z':
+ line_termination = 0;
+ break;
+ case 'r':
+ ls_options |= LS_RECURSIVE;
+ break;
+ case 'd':
+ ls_options |= LS_TREE_ONLY;
+ break;
+ case 't':
+ ls_options |= LS_SHOW_TREES;
+ break;
+ case '-':
+ if (!strcmp(argv[1]+2, "name-only") ||
+ !strcmp(argv[1]+2, "name-status")) {
+ ls_options |= LS_NAME_ONLY;
+ break;
+ }
+ if (!strcmp(argv[1]+2, "full-name")) {
+ chomp_prefix = 0;
+ break;
+ }
+ /* otherwise fallthru */
+ default:
+ usage(ls_tree_usage);
+ }
+ argc--; argv++;
+ }
+ /* -d -r should imply -t, but -d by itself should not have to. */
+ if ( (LS_TREE_ONLY|LS_RECURSIVE) ==
+ ((LS_TREE_ONLY|LS_RECURSIVE) & ls_options))
+ ls_options |= LS_SHOW_TREES;
+
+ if (argc < 2)
+ usage(ls_tree_usage);
+ if (get_sha1(argv[1], sha1) < 0)
+ usage(ls_tree_usage);
+
+ pathspec = get_pathspec(prefix, argv + 2);
+ tree = parse_tree_indirect(sha1);
+ if (!tree)
+ die("not a tree object");
+ read_tree_recursive(tree, "", 0, 0, pathspec, show_tree);
- if (argc != 2)
- usage("ls-tree <key>");
- if (get_sha1_hex(argv[1], sha1) < 0)
- usage("ls-tree <key>");
- sha1_file_directory = getenv(DB_ENVIRONMENT);
- if (!sha1_file_directory)
- sha1_file_directory = DEFAULT_DB_ENVIRONMENT;
- if (list(sha1) < 0)
- die("list failed");
return 0;
}