Code

Allow writing to the private index file mapping.
[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>
10 #include "cache.h"
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';
20 static const char **dir;
21 static int nr_dir;
22 static int dir_alloc;
24 static void add_name(const char *pathname, int len)
25 {
26         char *name;
28         if (cache_name_pos(pathname, len) >= 0)
29                 return;
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 }
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);
52         if (dir) {
53                 struct dirent *de;
54                 char fullname[MAXPATHLEN + 1];
55                 memcpy(fullname, base, baselen);
57                 while ((de = readdir(dir)) != NULL) {
58                         int len;
60                         if (de->d_name[0] == '.')
61                                 continue;
62                         len = strlen(de->d_name);
63                         memcpy(fullname + baselen, de->d_name, len+1);
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 }
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);
96         return cache_name_compare(n1, l1, n2, l2);
97 }
99 static void show_files(void)
101         int i;
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         }
143 int main(int argc, char **argv)
145         int i;
147         for (i = 1; i < argc; i++) {
148                 char *arg = argv[i];
150                 if (!strcmp(arg, "-z")) {
151                         line_terminator = 0;
152                         continue;
153                 }
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                 }
182                 usage("show-files [-z] (--[cached|deleted|others|ignored|stage])*");
183         }
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;
189         read_cache();
190         show_files();
191         return 0;