blame: Fix git-blame <directory>
[git/git.git] / ls-tree.c
CommitLineData
7912c070
PB
1/*
2 * GIT - The information manager from hell
3 *
4 * Copyright (C) Linus Torvalds, 2005
5 */
6#include "cache.h"
6af1f019
JH
7#include "blob.h"
8#include "tree.h"
22ddf719 9#include "quote.h"
7912c070 10
e99d59ff 11static int line_termination = '\n';
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JH
12#define LS_RECURSIVE 1
13#define LS_TREE_ONLY 2
0f8f45cb 14#define LS_SHOW_TREES 4
c639a554 15#define LS_NAME_ONLY 8
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LT
16static int ls_options = 0;
17const char **pathspec;
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JH
18static int chomp_prefix = 0;
19static const char *prefix;
aa1c48df 20
3c5e8468 21static const char ls_tree_usage[] =
a69dd585 22 "git-ls-tree [-d] [-r] [-t] [-z] [--name-only] [--name-status] [--full-name] <tree-ish> [path...]";
0f8f45cb
LT
23
24static int show_recursive(const char *base, int baselen, const char *pathname)
25{
26 const char **s;
27
28 if (ls_options & LS_RECURSIVE)
29 return 1;
30
31 s = pathspec;
32 if (!s)
33 return 0;
34
35 for (;;) {
36 const char *spec = *s++;
37 int len, speclen;
38
39 if (!spec)
40 return 0;
41 if (strncmp(base, spec, baselen))
42 continue;
43 len = strlen(pathname);
44 spec += baselen;
45 speclen = strlen(spec);
46 if (speclen <= len)
47 continue;
48 if (memcmp(pathname, spec, len))
49 continue;
50 return 1;
51 }
52}
aa1c48df 53
a69dd585
JH
54static int show_tree(unsigned char *sha1, const char *base, int baselen,
55 const char *pathname, unsigned mode, int stage)
6af1f019 56{
0f8f45cb 57 int retval = 0;
3c5e8468 58 const char *type = "blob";
ab1630a3 59
3c5e8468 60 if (S_ISDIR(mode)) {
0f8f45cb
LT
61 if (show_recursive(base, baselen, pathname)) {
62 retval = READ_TREE_RECURSIVE;
63 if (!(ls_options & LS_SHOW_TREES))
64 return retval;
e2466376 65 }
b45c569b 66 type = "tree";
6af1f019 67 }
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JH
68 else if (ls_options & LS_TREE_ONLY)
69 return 0;
ab1630a3 70
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71 if (chomp_prefix &&
72 (baselen < chomp_prefix || memcmp(prefix, base, chomp_prefix)))
73 return 0;
74
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JH
75 if (!(ls_options & LS_NAME_ONLY))
76 printf("%06o %s %s\t", mode, type, sha1_to_hex(sha1));
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77 write_name_quoted(base + chomp_prefix, baselen - chomp_prefix,
78 pathname,
79 line_termination, stdout);
32b5904b 80 putchar(line_termination);
0f8f45cb 81 return retval;
6af1f019 82}
0f2303f7 83
3c5e8468 84int main(int argc, const char **argv)
6af1f019 85{
7912c070 86 unsigned char sha1[20];
521698b1 87 struct tree *tree;
7912c070 88
3c5e8468 89 prefix = setup_git_directory();
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JH
90 if (prefix && *prefix)
91 chomp_prefix = strlen(prefix);
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JH
92 while (1 < argc && argv[1][0] == '-') {
93 switch (argv[1][1]) {
94 case 'z':
95 line_termination = 0;
96 break;
97 case 'r':
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JH
98 ls_options |= LS_RECURSIVE;
99 break;
100 case 'd':
101 ls_options |= LS_TREE_ONLY;
aa1c48df 102 break;
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LT
103 case 't':
104 ls_options |= LS_SHOW_TREES;
105 break;
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JH
106 case '-':
107 if (!strcmp(argv[1]+2, "name-only") ||
108 !strcmp(argv[1]+2, "name-status")) {
109 ls_options |= LS_NAME_ONLY;
110 break;
111 }
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JH
112 if (!strcmp(argv[1]+2, "full-name")) {
113 chomp_prefix = 0;
114 break;
115 }
c639a554 116 /* otherwise fallthru */
aa1c48df 117 default:
0f2303f7 118 usage(ls_tree_usage);
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119 }
120 argc--; argv++;
121 }
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122 /* -d -r should imply -t, but -d by itself should not have to. */
123 if ( (LS_TREE_ONLY|LS_RECURSIVE) ==
124 ((LS_TREE_ONLY|LS_RECURSIVE) & ls_options))
125 ls_options |= LS_SHOW_TREES;
aa1c48df 126
6d3a5077 127 if (argc < 2)
0f2303f7 128 usage(ls_tree_usage);
3c249c95 129 if (get_sha1(argv[1], sha1) < 0)
0f2303f7 130 usage(ls_tree_usage);
6af1f019 131
e2466376 132 pathspec = get_pathspec(prefix, argv + 2);
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DB
133 tree = parse_tree_indirect(sha1);
134 if (!tree)
3c5e8468 135 die("not a tree object");
521698b1 136 read_tree_recursive(tree, "", 0, 0, pathspec, show_tree);
3c5e8468 137
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PB
138 return 0;
139}