diff.c: don't add extra '/' to pathname
[git/git.git] / show-files.c
1 /*
2 * This merges the file listing in the directory cache index
3 * with the actual working directory list, and shows different
4 * combinations of the two.
5 *
6 * Copyright (C) Linus Torvalds, 2005
7 */
8 #include <dirent.h>
9
10 #include "cache.h"
11
12 static int show_deleted = 0;
13 static int show_cached = 0;
14 static int show_others = 0;
15 static int show_ignored = 0;
16 static int show_stage = 0;
17 static int show_unmerged = 0;
18 static int line_terminator = '\n';
19
20 static const char **dir;
21 static int nr_dir;
22 static int dir_alloc;
23
24 static void add_name(const char *pathname, int len)
25 {
26 char *name;
27
28 if (cache_name_pos(pathname, len) >= 0)
29 return;
30
31 if (nr_dir == dir_alloc) {
32 dir_alloc = alloc_nr(dir_alloc);
33 dir = xrealloc(dir, dir_alloc*sizeof(char *));
34 }
35 name = xmalloc(len + 1);
36 memcpy(name, pathname, len + 1);
37 dir[nr_dir++] = name;
38 }
39
40 /*
41 * Read a directory tree. We currently ignore anything but
42 * directories and regular files. That's because git doesn't
43 * handle them at all yet. Maybe that will change some day.
44 *
45 * Also, we currently ignore all names starting with a dot.
46 * That likely will not change.
47 */
48 static void read_directory(const char *path, const char *base, int baselen)
49 {
50 DIR *dir = opendir(path);
51
52 if (dir) {
53 struct dirent *de;
54 char fullname[MAXPATHLEN + 1];
55 memcpy(fullname, base, baselen);
56
57 while ((de = readdir(dir)) != NULL) {
58 int len;
59
60 if (de->d_name[0] == '.')
61 continue;
62 len = strlen(de->d_name);
63 memcpy(fullname + baselen, de->d_name, len+1);
64
65 switch (de->d_type) {
66 struct stat st;
67 default:
68 continue;
69 case DT_UNKNOWN:
70 if (lstat(fullname, &st))
71 continue;
72 if (S_ISREG(st.st_mode))
73 break;
74 if (!S_ISDIR(st.st_mode))
75 continue;
76 /* fallthrough */
77 case DT_DIR:
78 memcpy(fullname + baselen + len, "/", 2);
79 read_directory(fullname, fullname, baselen + len + 1);
80 continue;
81 case DT_REG:
82 break;
83 }
84 add_name(fullname, baselen + len);
85 }
86 closedir(dir);
87 }
88 }
89
90 static int cmp_name(const void *p1, const void *p2)
91 {
92 const char *n1 = *(const char **)p1;
93 const char *n2 = *(const char **)p2;
94 int l1 = strlen(n1), l2 = strlen(n2);
95
96 return cache_name_compare(n1, l1, n2, l2);
97 }
98
99 static void show_files(void)
100 {
101 int i;
102
103 /* For cached/deleted files we don't need to even do the readdir */
104 if (show_others | show_ignored) {
105 read_directory(".", "", 0);
106 qsort(dir, nr_dir, sizeof(char *), cmp_name);
107 }
108 if (show_others) {
109 for (i = 0; i < nr_dir; i++)
110 printf("%s%c", dir[i], line_terminator);
111 }
112 if (show_cached | show_stage) {
113 for (i = 0; i < active_nr; i++) {
114 struct cache_entry *ce = active_cache[i];
115 if (show_unmerged && !ce_stage(ce))
116 continue;
117 if (!show_stage)
118 printf("%s%c", ce->name, line_terminator);
119 else
120 printf(/* "%06o %s %d %10d %s%c", */
121 "%06o %s %d %s%c",
122 ntohl(ce->ce_mode),
123 sha1_to_hex(ce->sha1),
124 ce_stage(ce),
125 /* ntohl(ce->ce_size), */
126 ce->name, line_terminator);
127 }
128 }
129 if (show_deleted) {
130 for (i = 0; i < active_nr; i++) {
131 struct cache_entry *ce = active_cache[i];
132 struct stat st;
133 if (!stat(ce->name, &st))
134 continue;
135 printf("%s%c", ce->name, line_terminator);
136 }
137 }
138 if (show_ignored) {
139 /* We don't have any "ignore" list yet */
140 }
141 }
142
143 int main(int argc, char **argv)
144 {
145 int i;
146
147 for (i = 1; i < argc; i++) {
148 char *arg = argv[i];
149
150 if (!strcmp(arg, "-z")) {
151 line_terminator = 0;
152 continue;
153 }
154
155 if (!strcmp(arg, "--cached")) {
156 show_cached = 1;
157 continue;
158 }
159 if (!strcmp(arg, "--deleted")) {
160 show_deleted = 1;
161 continue;
162 }
163 if (!strcmp(arg, "--others")) {
164 show_others = 1;
165 continue;
166 }
167 if (!strcmp(arg, "--ignored")) {
168 show_ignored = 1;
169 continue;
170 }
171 if (!strcmp(arg, "--stage")) {
172 show_stage = 1;
173 continue;
174 }
175 if (!strcmp(arg, "--unmerged")) {
176 // There's no point in showing unmerged unless you also show the stage information
177 show_stage = 1;
178 show_unmerged = 1;
179 continue;
180 }
181
182 usage("show-files [-z] (--[cached|deleted|others|ignored|stage])*");
183 }
184
185 /* With no flags, we default to showing the cached files */
186 if (!(show_stage | show_deleted | show_others | show_ignored | show_unmerged))
187 show_cached = 1;
188
189 read_cache();
190 show_files();
191 return 0;
192 }