fe3b952cb3007d12c2e94a08b10486ed301c4769
[git/git.git] / builtin / ls-tree.c
1 /*
2 * GIT - The information manager from hell
3 *
4 * Copyright (C) Linus Torvalds, 2005
5 */
6 #include "cache.h"
7 #include "config.h"
8 #include "object-store.h"
9 #include "blob.h"
10 #include "tree.h"
11 #include "commit.h"
12 #include "quote.h"
13 #include "builtin.h"
14 #include "parse-options.h"
15 #include "pathspec.h"
16
17 static int line_termination = '\n';
18 #define LS_RECURSIVE 1
19 #define LS_TREE_ONLY 2
20 #define LS_SHOW_TREES 4
21 #define LS_NAME_ONLY 8
22 #define LS_SHOW_SIZE 16
23 static int abbrev;
24 static int ls_options;
25 static struct pathspec pathspec;
26 static int chomp_prefix;
27 static const char *ls_tree_prefix;
28
29 static const char * const ls_tree_usage[] = {
30 N_("git ls-tree [<options>] <tree-ish> [<path>...]"),
31 NULL
32 };
33
34 static int show_recursive(const char *base, int baselen, const char *pathname)
35 {
36 int i;
37
38 if (ls_options & LS_RECURSIVE)
39 return 1;
40
41 if (!pathspec.nr)
42 return 0;
43
44 for (i = 0; i < pathspec.nr; i++) {
45 const char *spec = pathspec.items[i].match;
46 int len, speclen;
47
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;
60 }
61 return 0;
62 }
63
64 static int show_tree(const struct object_id *oid, struct strbuf *base,
65 const char *pathname, unsigned mode, int stage, void *context)
66 {
67 int retval = 0;
68 int baselen;
69 const char *type = blob_type;
70
71 if (S_ISGITLINK(mode)) {
72 /*
73 * Maybe we want to have some recursive version here?
74 *
75 * Something similar to this incomplete example:
76 *
77 if (show_subprojects(base, baselen, pathname))
78 retval = READ_TREE_RECURSIVE;
79 *
80 */
81 type = commit_type;
82 } else if (S_ISDIR(mode)) {
83 if (show_recursive(base->buf, base->len, pathname)) {
84 retval = READ_TREE_RECURSIVE;
85 if (!(ls_options & LS_SHOW_TREES))
86 return retval;
87 }
88 type = tree_type;
89 }
90 else if (ls_options & LS_TREE_ONLY)
91 return 0;
92
93 if (!(ls_options & LS_NAME_ONLY)) {
94 if (ls_options & LS_SHOW_SIZE) {
95 char size_text[24];
96 if (!strcmp(type, blob_type)) {
97 unsigned long size;
98 if (oid_object_info(the_repository, oid, &size) == OBJ_BAD)
99 xsnprintf(size_text, sizeof(size_text),
100 "BAD");
101 else
102 xsnprintf(size_text, sizeof(size_text),
103 "%lu", size);
104 } else
105 xsnprintf(size_text, sizeof(size_text), "-");
106 printf("%06o %s %s %7s\t", mode, type,
107 find_unique_abbrev(oid, abbrev),
108 size_text);
109 } else
110 printf("%06o %s %s\t", mode, type,
111 find_unique_abbrev(oid, abbrev));
112 }
113 baselen = base->len;
114 strbuf_addstr(base, pathname);
115 write_name_quoted_relative(base->buf,
116 chomp_prefix ? ls_tree_prefix : NULL,
117 stdout, line_termination);
118 strbuf_setlen(base, baselen);
119 return retval;
120 }
121
122 int cmd_ls_tree(int argc, const char **argv, const char *prefix)
123 {
124 struct object_id oid;
125 struct tree *tree;
126 int i, full_tree = 0;
127 const struct option ls_tree_options[] = {
128 OPT_BIT('d', NULL, &ls_options, N_("only show trees"),
129 LS_TREE_ONLY),
130 OPT_BIT('r', NULL, &ls_options, N_("recurse into subtrees"),
131 LS_RECURSIVE),
132 OPT_BIT('t', NULL, &ls_options, N_("show trees when recursing"),
133 LS_SHOW_TREES),
134 OPT_SET_INT('z', NULL, &line_termination,
135 N_("terminate entries with NUL byte"), 0),
136 OPT_BIT('l', "long", &ls_options, N_("include object size"),
137 LS_SHOW_SIZE),
138 OPT_BIT(0, "name-only", &ls_options, N_("list only filenames"),
139 LS_NAME_ONLY),
140 OPT_BIT(0, "name-status", &ls_options, N_("list only filenames"),
141 LS_NAME_ONLY),
142 OPT_SET_INT(0, "full-name", &chomp_prefix,
143 N_("use full path names"), 0),
144 OPT_BOOL(0, "full-tree", &full_tree,
145 N_("list entire tree; not just current directory "
146 "(implies --full-name)")),
147 OPT__ABBREV(&abbrev),
148 OPT_END()
149 };
150
151 git_config(git_default_config, NULL);
152 ls_tree_prefix = prefix;
153 if (prefix && *prefix)
154 chomp_prefix = strlen(prefix);
155
156 argc = parse_options(argc, argv, prefix, ls_tree_options,
157 ls_tree_usage, 0);
158 if (full_tree) {
159 ls_tree_prefix = prefix = NULL;
160 chomp_prefix = 0;
161 }
162 /* -d -r should imply -t, but -d by itself should not have to. */
163 if ( (LS_TREE_ONLY|LS_RECURSIVE) ==
164 ((LS_TREE_ONLY|LS_RECURSIVE) & ls_options))
165 ls_options |= LS_SHOW_TREES;
166
167 if (argc < 1)
168 usage_with_options(ls_tree_usage, ls_tree_options);
169 if (get_oid(argv[0], &oid))
170 die("Not a valid object name %s", argv[0]);
171
172 /*
173 * show_recursive() rolls its own matching code and is
174 * generally ignorant of 'struct pathspec'. The magic mask
175 * cannot be lifted until it is converted to use
176 * match_pathspec() or tree_entry_interesting()
177 */
178 parse_pathspec(&pathspec, PATHSPEC_ALL_MAGIC &
179 ~(PATHSPEC_FROMTOP | PATHSPEC_LITERAL),
180 PATHSPEC_PREFER_CWD,
181 prefix, argv + 1);
182 for (i = 0; i < pathspec.nr; i++)
183 pathspec.items[i].nowildcard_len = pathspec.items[i].len;
184 pathspec.has_wildcard = 0;
185 tree = parse_tree_indirect(&oid);
186 if (!tree)
187 die("not a tree object");
188 return !!read_tree_recursive(tree, "", 0, 0, &pathspec, show_tree, NULL);
189 }