Code

Merge branch 'maint'
[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 "blob.h"
8 #include "tree.h"
9 #include "commit.h"
10 #include "quote.h"
11 #include "builtin.h"
13 static int line_termination = '\n';
14 #define LS_RECURSIVE 1
15 #define LS_TREE_ONLY 2
16 #define LS_SHOW_TREES 4
17 #define LS_NAME_ONLY 8
18 #define LS_SHOW_SIZE 16
19 static int abbrev;
20 static int ls_options;
21 static const char **pathspec;
22 static int chomp_prefix;
23 static const char *ls_tree_prefix;
25 static const char ls_tree_usage[] =
26         "git ls-tree [-d] [-r] [-t] [-l] [-z] [--name-only] [--name-status] [--full-name] [--full-tree] [--abbrev[=<n>]] <tree-ish> [path...]";
28 static int show_recursive(const char *base, int baselen, const char *pathname)
29 {
30         const char **s;
32         if (ls_options & LS_RECURSIVE)
33                 return 1;
35         s = pathspec;
36         if (!s)
37                 return 0;
39         for (;;) {
40                 const char *spec = *s++;
41                 int len, speclen;
43                 if (!spec)
44                         return 0;
45                 if (strncmp(base, spec, baselen))
46                         continue;
47                 len = strlen(pathname);
48                 spec += baselen;
49                 speclen = strlen(spec);
50                 if (speclen <= len)
51                         continue;
52                 if (memcmp(pathname, spec, len))
53                         continue;
54                 return 1;
55         }
56 }
58 static int show_tree(const unsigned char *sha1, const char *base, int baselen,
59                 const char *pathname, unsigned mode, int stage, void *context)
60 {
61         int retval = 0;
62         const char *type = blob_type;
64         if (S_ISGITLINK(mode)) {
65                 /*
66                  * Maybe we want to have some recursive version here?
67                  *
68                  * Something similar to this incomplete example:
69                  *
70                 if (show_subprojects(base, baselen, pathname))
71                         retval = READ_TREE_RECURSIVE;
72                  *
73                  */
74                 type = commit_type;
75         } else if (S_ISDIR(mode)) {
76                 if (show_recursive(base, baselen, pathname)) {
77                         retval = READ_TREE_RECURSIVE;
78                         if (!(ls_options & LS_SHOW_TREES))
79                                 return retval;
80                 }
81                 type = tree_type;
82         }
83         else if (ls_options & LS_TREE_ONLY)
84                 return 0;
86         if (chomp_prefix &&
87             (baselen < chomp_prefix || memcmp(ls_tree_prefix, base, chomp_prefix)))
88                 return 0;
90         if (!(ls_options & LS_NAME_ONLY)) {
91                 if (ls_options & LS_SHOW_SIZE) {
92                         char size_text[24];
93                         if (!strcmp(type, blob_type)) {
94                                 unsigned long size;
95                                 if (sha1_object_info(sha1, &size) == OBJ_BAD)
96                                         strcpy(size_text, "BAD");
97                                 else
98                                         snprintf(size_text, sizeof(size_text),
99                                                  "%lu", size);
100                         } else
101                                 strcpy(size_text, "-");
102                         printf("%06o %s %s %7s\t", mode, type,
103                                abbrev ? find_unique_abbrev(sha1, abbrev)
104                                       : sha1_to_hex(sha1),
105                                size_text);
106                 } else
107                         printf("%06o %s %s\t", mode, type,
108                                abbrev ? find_unique_abbrev(sha1, abbrev)
109                                       : sha1_to_hex(sha1));
110         }
111         write_name_quotedpfx(base + chomp_prefix, baselen - chomp_prefix,
112                           pathname, stdout, line_termination);
113         return retval;
116 int cmd_ls_tree(int argc, const char **argv, const char *prefix)
118         unsigned char sha1[20];
119         struct tree *tree;
121         git_config(git_default_config, NULL);
122         ls_tree_prefix = prefix;
123         if (prefix && *prefix)
124                 chomp_prefix = strlen(prefix);
125         while (1 < argc && argv[1][0] == '-') {
126                 switch (argv[1][1]) {
127                 case 'z':
128                         line_termination = 0;
129                         break;
130                 case 'r':
131                         ls_options |= LS_RECURSIVE;
132                         break;
133                 case 'd':
134                         ls_options |= LS_TREE_ONLY;
135                         break;
136                 case 't':
137                         ls_options |= LS_SHOW_TREES;
138                         break;
139                 case 'l':
140                         ls_options |= LS_SHOW_SIZE;
141                         break;
142                 case '-':
143                         if (!strcmp(argv[1]+2, "name-only") ||
144                             !strcmp(argv[1]+2, "name-status")) {
145                                 ls_options |= LS_NAME_ONLY;
146                                 break;
147                         }
148                         if (!strcmp(argv[1]+2, "long")) {
149                                 ls_options |= LS_SHOW_SIZE;
150                                 break;
151                         }
152                         if (!strcmp(argv[1]+2, "full-name")) {
153                                 chomp_prefix = 0;
154                                 break;
155                         }
156                         if (!strcmp(argv[1]+2, "full-tree")) {
157                                 ls_tree_prefix = prefix = NULL;
158                                 chomp_prefix = 0;
159                                 break;
160                         }
161                         if (!prefixcmp(argv[1]+2, "abbrev=")) {
162                                 abbrev = strtoul(argv[1]+9, NULL, 10);
163                                 if (abbrev && abbrev < MINIMUM_ABBREV)
164                                         abbrev = MINIMUM_ABBREV;
165                                 else if (abbrev > 40)
166                                         abbrev = 40;
167                                 break;
168                         }
169                         if (!strcmp(argv[1]+2, "abbrev")) {
170                                 abbrev = DEFAULT_ABBREV;
171                                 break;
172                         }
173                         /* otherwise fallthru */
174                 default:
175                         usage(ls_tree_usage);
176                 }
177                 argc--; argv++;
178         }
179         /* -d -r should imply -t, but -d by itself should not have to. */
180         if ( (LS_TREE_ONLY|LS_RECURSIVE) ==
181             ((LS_TREE_ONLY|LS_RECURSIVE) & ls_options))
182                 ls_options |= LS_SHOW_TREES;
184         if (argc < 2)
185                 usage(ls_tree_usage);
186         if (get_sha1(argv[1], sha1))
187                 die("Not a valid object name %s", argv[1]);
189         pathspec = get_pathspec(prefix, argv + 2);
190         tree = parse_tree_indirect(sha1);
191         if (!tree)
192                 die("not a tree object");
193         read_tree_recursive(tree, "", 0, 0, pathspec, show_tree, NULL);
195         return 0;