submodule: Use cat instead of echo to avoid DOS line-endings
[git/dscho.git] / builtin / ls-tree.c
blob6b666e1e87017f41d2f53c50b157f280b3a5f282
1 /*
2 * GIT - The information manager from hell
4 * Copyright (C) Linus Torvalds, 2005
5 */
6 #include "cache.h"
7 #include "blob.h"
8 #include "tree.h"
9 #include "commit.h"
10 #include "quote.h"
11 #include "builtin.h"
12 #include "parse-options.h"
14 static int line_termination = '\n';
15 #define LS_RECURSIVE 1
16 #define LS_TREE_ONLY 2
17 #define LS_SHOW_TREES 4
18 #define LS_NAME_ONLY 8
19 #define LS_SHOW_SIZE 16
20 static int abbrev;
21 static int ls_options;
22 static struct pathspec pathspec;
23 static int chomp_prefix;
24 static const char *ls_tree_prefix;
26 static const char * const ls_tree_usage[] = {
27 "git ls-tree [<options>] <tree-ish> [<path>...]",
28 NULL
31 static int show_recursive(const char *base, int baselen, const char *pathname)
33 const char **s;
35 if (ls_options & LS_RECURSIVE)
36 return 1;
38 s = pathspec.raw;
39 if (!s)
40 return 0;
42 for (;;) {
43 const char *spec = *s++;
44 int len, speclen;
46 if (!spec)
47 return 0;
48 if (strncmp(base, spec, baselen))
49 continue;
50 len = strlen(pathname);
51 spec += baselen;
52 speclen = strlen(spec);
53 if (speclen <= len)
54 continue;
55 if (spec[len] && spec[len] != '/')
56 continue;
57 if (memcmp(pathname, spec, len))
58 continue;
59 return 1;
63 static int show_tree(const unsigned char *sha1, const char *base, int baselen,
64 const char *pathname, unsigned mode, int stage, void *context)
66 int retval = 0;
67 const char *type = blob_type;
69 if (S_ISGITLINK(mode)) {
71 * Maybe we want to have some recursive version here?
73 * Something similar to this incomplete example:
75 if (show_subprojects(base, baselen, pathname))
76 retval = READ_TREE_RECURSIVE;
79 type = commit_type;
80 } else if (S_ISDIR(mode)) {
81 if (show_recursive(base, baselen, pathname)) {
82 retval = READ_TREE_RECURSIVE;
83 if (!(ls_options & LS_SHOW_TREES))
84 return retval;
86 type = tree_type;
88 else if (ls_options & LS_TREE_ONLY)
89 return 0;
91 if (chomp_prefix &&
92 (baselen < chomp_prefix || memcmp(ls_tree_prefix, base, chomp_prefix)))
93 return 0;
95 if (!(ls_options & LS_NAME_ONLY)) {
96 if (ls_options & LS_SHOW_SIZE) {
97 char size_text[24];
98 if (!strcmp(type, blob_type)) {
99 unsigned long size;
100 if (sha1_object_info(sha1, &size) == OBJ_BAD)
101 strcpy(size_text, "BAD");
102 else
103 snprintf(size_text, sizeof(size_text),
104 "%lu", size);
105 } else
106 strcpy(size_text, "-");
107 printf("%06o %s %s %7s\t", mode, type,
108 find_unique_abbrev(sha1, abbrev),
109 size_text);
110 } else
111 printf("%06o %s %s\t", mode, type,
112 find_unique_abbrev(sha1, abbrev));
114 write_name_quotedpfx(base + chomp_prefix, baselen - chomp_prefix,
115 pathname, stdout, line_termination);
116 return retval;
119 int cmd_ls_tree(int argc, const char **argv, const char *prefix)
121 unsigned char sha1[20];
122 struct tree *tree;
123 int i, full_tree = 0;
124 const struct option ls_tree_options[] = {
125 OPT_BIT('d', NULL, &ls_options, "only show trees",
126 LS_TREE_ONLY),
127 OPT_BIT('r', NULL, &ls_options, "recurse into subtrees",
128 LS_RECURSIVE),
129 OPT_BIT('t', NULL, &ls_options, "show trees when recursing",
130 LS_SHOW_TREES),
131 OPT_SET_INT('z', NULL, &line_termination,
132 "terminate entries with NUL byte", 0),
133 OPT_BIT('l', "long", &ls_options, "include object size",
134 LS_SHOW_SIZE),
135 OPT_BIT(0, "name-only", &ls_options, "list only filenames",
136 LS_NAME_ONLY),
137 OPT_BIT(0, "name-status", &ls_options, "list only filenames",
138 LS_NAME_ONLY),
139 OPT_SET_INT(0, "full-name", &chomp_prefix,
140 "use full path names", 0),
141 OPT_BOOLEAN(0, "full-tree", &full_tree,
142 "list entire tree; not just current directory "
143 "(implies --full-name)"),
144 OPT__ABBREV(&abbrev),
145 OPT_END()
148 git_config(git_default_config, NULL);
149 ls_tree_prefix = prefix;
150 if (prefix && *prefix)
151 chomp_prefix = strlen(prefix);
153 argc = parse_options(argc, argv, prefix, ls_tree_options,
154 ls_tree_usage, 0);
155 if (full_tree) {
156 ls_tree_prefix = prefix = NULL;
157 chomp_prefix = 0;
159 /* -d -r should imply -t, but -d by itself should not have to. */
160 if ( (LS_TREE_ONLY|LS_RECURSIVE) ==
161 ((LS_TREE_ONLY|LS_RECURSIVE) & ls_options))
162 ls_options |= LS_SHOW_TREES;
164 if (argc < 1)
165 usage_with_options(ls_tree_usage, ls_tree_options);
166 if (get_sha1(argv[0], sha1))
167 die("Not a valid object name %s", argv[0]);
169 init_pathspec(&pathspec, get_pathspec(prefix, argv + 1));
170 for (i = 0; i < pathspec.nr; i++)
171 pathspec.items[i].use_wildcard = 0;
172 pathspec.has_wildcard = 0;
173 tree = parse_tree_indirect(sha1);
174 if (!tree)
175 die("not a tree object");
176 return !!read_tree_recursive(tree, "", 0, 0, &pathspec, show_tree, NULL);