git-ls-tree: add "-t" option to always show the tree entries
[git/git.git] / ls-tree.c
... / ...
CommitLineData
1/*
2 * GIT - The information manager from hell
3 *
4 * Copyright (C) Linus Torvalds, 2005
5 */
6#include "cache.h"
7#include "blob.h"
8#include "tree.h"
9#include "quote.h"
10
11static int line_termination = '\n';
12#define LS_RECURSIVE 1
13#define LS_TREE_ONLY 2
14#define LS_SHOW_TREES 4
15static int ls_options = 0;
16const char **pathspec;
17
18static const char ls_tree_usage[] =
19 "git-ls-tree [-d] [-r] [-t] [-z] <tree-ish> [path...]";
20
21static int show_recursive(const char *base, int baselen, const char *pathname)
22{
23 const char **s;
24
25 if (ls_options & LS_RECURSIVE)
26 return 1;
27
28 s = pathspec;
29 if (!s)
30 return 0;
31
32 for (;;) {
33 const char *spec = *s++;
34 int len, speclen;
35
36 if (!spec)
37 return 0;
38 if (strncmp(base, spec, baselen))
39 continue;
40 len = strlen(pathname);
41 spec += baselen;
42 speclen = strlen(spec);
43 if (speclen <= len)
44 continue;
45 if (memcmp(pathname, spec, len))
46 continue;
47 return 1;
48 }
49}
50
51static int show_tree(unsigned char *sha1, const char *base, int baselen, const char *pathname, unsigned mode, int stage)
52{
53 int retval = 0;
54 const char *type = "blob";
55
56 if (S_ISDIR(mode)) {
57 if (show_recursive(base, baselen, pathname)) {
58 retval = READ_TREE_RECURSIVE;
59 if (!(ls_options & LS_SHOW_TREES))
60 return retval;
61 }
62 type = "tree";
63 }
64
65 printf("%06o %s %s\t", mode, type, sha1_to_hex(sha1));
66 write_name_quoted(base, baselen, pathname, line_termination, stdout);
67 putchar(line_termination);
68 return retval;
69}
70
71int main(int argc, const char **argv)
72{
73 const char *prefix;
74 unsigned char sha1[20];
75 char *buf;
76 unsigned long size;
77
78 prefix = setup_git_directory();
79 while (1 < argc && argv[1][0] == '-') {
80 switch (argv[1][1]) {
81 case 'z':
82 line_termination = 0;
83 break;
84 case 'r':
85 ls_options |= LS_RECURSIVE;
86 break;
87 case 'd':
88 ls_options |= LS_TREE_ONLY;
89 break;
90 case 't':
91 ls_options |= LS_SHOW_TREES;
92 break;
93 default:
94 usage(ls_tree_usage);
95 }
96 argc--; argv++;
97 }
98
99 if (argc < 2)
100 usage(ls_tree_usage);
101 if (get_sha1(argv[1], sha1) < 0)
102 usage(ls_tree_usage);
103
104 pathspec = get_pathspec(prefix, argv + 2);
105 buf = read_object_with_reference(sha1, "tree", &size, NULL);
106 if (!buf)
107 die("not a tree object");
108 read_tree_recursive(buf, size, "", 0, 0, pathspec, show_tree);
109
110 return 0;
111}