gitk: Second try to work around the command line limit on Windows
[git/dscho.git] / builtin / ls-tree.c
blobdc86b0d9a997f98ad43ca2897055a92b8a3eb7d0
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 const char **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;
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 (memcmp(pathname, spec, len))
56 continue;
57 return 1;
61 static int show_tree(const unsigned char *sha1, const char *base, int baselen,
62 const char *pathname, unsigned mode, int stage, void *context)
64 int retval = 0;
65 const char *type = blob_type;
67 if (S_ISGITLINK(mode)) {
69 * Maybe we want to have some recursive version here?
71 * Something similar to this incomplete example:
73 if (show_subprojects(base, baselen, pathname))
74 retval = READ_TREE_RECURSIVE;
77 type = commit_type;
78 } else if (S_ISDIR(mode)) {
79 if (show_recursive(base, baselen, pathname)) {
80 retval = READ_TREE_RECURSIVE;
81 if (!(ls_options & LS_SHOW_TREES))
82 return retval;
84 type = tree_type;
86 else if (ls_options & LS_TREE_ONLY)
87 return 0;
89 if (chomp_prefix &&
90 (baselen < chomp_prefix || memcmp(ls_tree_prefix, base, chomp_prefix)))
91 return 0;
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 (sha1_object_info(sha1, &size) == OBJ_BAD)
99 strcpy(size_text, "BAD");
100 else
101 snprintf(size_text, sizeof(size_text),
102 "%lu", size);
103 } else
104 strcpy(size_text, "-");
105 printf("%06o %s %s %7s\t", mode, type,
106 find_unique_abbrev(sha1, abbrev),
107 size_text);
108 } else
109 printf("%06o %s %s\t", mode, type,
110 find_unique_abbrev(sha1, abbrev));
112 write_name_quotedpfx(base + chomp_prefix, baselen - chomp_prefix,
113 pathname, stdout, line_termination);
114 return retval;
117 int cmd_ls_tree(int argc, const char **argv, const char *prefix)
119 unsigned char sha1[20];
120 struct tree *tree;
121 int full_tree = 0;
122 const struct option ls_tree_options[] = {
123 OPT_BIT('d', NULL, &ls_options, "only show trees",
124 LS_TREE_ONLY),
125 OPT_BIT('r', NULL, &ls_options, "recurse into subtrees",
126 LS_RECURSIVE),
127 OPT_BIT('t', NULL, &ls_options, "show trees when recursing",
128 LS_SHOW_TREES),
129 OPT_SET_INT('z', NULL, &line_termination,
130 "terminate entries with NUL byte", 0),
131 OPT_BIT('l', "long", &ls_options, "include object size",
132 LS_SHOW_SIZE),
133 OPT_BIT(0, "name-only", &ls_options, "list only filenames",
134 LS_NAME_ONLY),
135 OPT_BIT(0, "name-status", &ls_options, "list only filenames",
136 LS_NAME_ONLY),
137 OPT_SET_INT(0, "full-name", &chomp_prefix,
138 "use full path names", 0),
139 OPT_BOOLEAN(0, "full-tree", &full_tree,
140 "list entire tree; not just current directory "
141 "(implies --full-name)"),
142 OPT__ABBREV(&abbrev),
143 OPT_END()
146 git_config(git_default_config, NULL);
147 ls_tree_prefix = prefix;
148 if (prefix && *prefix)
149 chomp_prefix = strlen(prefix);
151 argc = parse_options(argc, argv, prefix, ls_tree_options,
152 ls_tree_usage, 0);
153 if (full_tree) {
154 ls_tree_prefix = prefix = NULL;
155 chomp_prefix = 0;
157 /* -d -r should imply -t, but -d by itself should not have to. */
158 if ( (LS_TREE_ONLY|LS_RECURSIVE) ==
159 ((LS_TREE_ONLY|LS_RECURSIVE) & ls_options))
160 ls_options |= LS_SHOW_TREES;
162 if (argc < 1)
163 usage_with_options(ls_tree_usage, ls_tree_options);
164 if (get_sha1(argv[0], sha1))
165 die("Not a valid object name %s", argv[0]);
167 pathspec = get_pathspec(prefix, argv + 1);
168 tree = parse_tree_indirect(sha1);
169 if (!tree)
170 die("not a tree object");
171 read_tree_recursive(tree, "", 0, 0, pathspec, show_tree, NULL);
173 return 0;