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278 lines
6.4 KiB
278 lines
6.4 KiB
/* |
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* This merges the file listing in the directory cache index |
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* with the actual working directory list, and shows different |
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* combinations of the two. |
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* |
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* Copyright (C) Linus Torvalds, 2005 |
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*/ |
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#include <dirent.h> |
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#include <fnmatch.h> |
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#include "cache.h" |
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static int show_deleted = 0; |
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static int show_cached = 0; |
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static int show_others = 0; |
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static int show_ignored = 0; |
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static int show_stage = 0; |
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static int show_unmerged = 0; |
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static int line_terminator = '\n'; |
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static const char *tag_cached = ""; |
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static const char *tag_unmerged = ""; |
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static const char *tag_removed = ""; |
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static const char *tag_other = ""; |
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static int nr_excludes; |
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static const char **excludes; |
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static int excludes_alloc; |
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static void add_exclude(const char *string) |
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{ |
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if (nr_excludes == excludes_alloc) { |
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excludes_alloc = alloc_nr(excludes_alloc); |
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excludes = realloc(excludes, excludes_alloc*sizeof(char *)); |
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} |
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excludes[nr_excludes++] = string; |
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} |
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static void add_excludes_from_file(const char *fname) |
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{ |
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int fd, i; |
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long size; |
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char *buf, *entry; |
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fd = open(fname, O_RDONLY); |
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if (fd < 0) |
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goto err; |
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size = lseek(fd, 0, SEEK_END); |
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if (size < 0) |
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goto err; |
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lseek(fd, 0, SEEK_SET); |
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if (size == 0) { |
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close(fd); |
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return; |
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} |
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buf = xmalloc(size); |
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if (read(fd, buf, size) != size) |
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goto err; |
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close(fd); |
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entry = buf; |
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for (i = 0; i < size; i++) { |
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if (buf[i] == '\n') { |
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if (entry != buf + i) { |
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buf[i] = 0; |
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add_exclude(entry); |
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} |
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entry = buf + i + 1; |
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} |
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} |
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return; |
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err: perror(fname); |
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exit(1); |
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} |
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static int excluded(const char *pathname) |
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{ |
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int i; |
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if (nr_excludes) { |
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const char *basename = strrchr(pathname, '/'); |
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basename = (basename) ? basename+1 : pathname; |
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for (i = 0; i < nr_excludes; i++) |
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if (fnmatch(excludes[i], basename, 0) == 0) |
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return 1; |
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} |
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return 0; |
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} |
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static const char **dir; |
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static int nr_dir; |
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static int dir_alloc; |
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static void add_name(const char *pathname, int len) |
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{ |
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char *name; |
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if (cache_name_pos(pathname, len) >= 0) |
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return; |
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if (nr_dir == dir_alloc) { |
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dir_alloc = alloc_nr(dir_alloc); |
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dir = xrealloc(dir, dir_alloc*sizeof(char *)); |
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} |
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name = xmalloc(len + 1); |
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memcpy(name, pathname, len + 1); |
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dir[nr_dir++] = name; |
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} |
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/* |
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* Read a directory tree. We currently ignore anything but |
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* directories and regular files. That's because git doesn't |
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* handle them at all yet. Maybe that will change some day. |
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* |
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* Also, we currently ignore all names starting with a dot. |
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* That likely will not change. |
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*/ |
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static void read_directory(const char *path, const char *base, int baselen) |
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{ |
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DIR *dir = opendir(path); |
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if (dir) { |
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struct dirent *de; |
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char fullname[MAXPATHLEN + 1]; |
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memcpy(fullname, base, baselen); |
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while ((de = readdir(dir)) != NULL) { |
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int len; |
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if (de->d_name[0] == '.') |
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continue; |
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if (excluded(de->d_name) != show_ignored) |
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continue; |
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len = strlen(de->d_name); |
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memcpy(fullname + baselen, de->d_name, len+1); |
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switch (DTYPE(de)) { |
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struct stat st; |
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default: |
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continue; |
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case DT_UNKNOWN: |
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if (lstat(fullname, &st)) |
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continue; |
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if (S_ISREG(st.st_mode)) |
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break; |
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if (!S_ISDIR(st.st_mode)) |
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continue; |
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/* fallthrough */ |
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case DT_DIR: |
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memcpy(fullname + baselen + len, "/", 2); |
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read_directory(fullname, fullname, |
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baselen + len + 1); |
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continue; |
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case DT_REG: |
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break; |
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} |
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add_name(fullname, baselen + len); |
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} |
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closedir(dir); |
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} |
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} |
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static int cmp_name(const void *p1, const void *p2) |
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{ |
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const char *n1 = *(const char **)p1; |
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const char *n2 = *(const char **)p2; |
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int l1 = strlen(n1), l2 = strlen(n2); |
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return cache_name_compare(n1, l1, n2, l2); |
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} |
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static void show_files(void) |
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{ |
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int i; |
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/* For cached/deleted files we don't need to even do the readdir */ |
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if (show_others) { |
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read_directory(".", "", 0); |
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qsort(dir, nr_dir, sizeof(char *), cmp_name); |
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for (i = 0; i < nr_dir; i++) |
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printf("%s%s%c", tag_other, dir[i], line_terminator); |
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} |
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if (show_cached | show_stage) { |
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for (i = 0; i < active_nr; i++) { |
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struct cache_entry *ce = active_cache[i]; |
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if (excluded(ce->name) != show_ignored) |
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continue; |
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if (show_unmerged && !ce_stage(ce)) |
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continue; |
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if (!show_stage) |
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printf("%s%s%c", |
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ce_stage(ce) ? tag_unmerged : |
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tag_cached, |
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ce->name, line_terminator); |
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else |
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printf("%s%06o %s %d %s%c", |
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ce_stage(ce) ? tag_unmerged : |
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tag_cached, |
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ntohl(ce->ce_mode), |
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sha1_to_hex(ce->sha1), |
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ce_stage(ce), |
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ce->name, line_terminator); |
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} |
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} |
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if (show_deleted) { |
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for (i = 0; i < active_nr; i++) { |
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struct cache_entry *ce = active_cache[i]; |
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struct stat st; |
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if (excluded(ce->name) != show_ignored) |
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continue; |
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if (!lstat(ce->name, &st)) |
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continue; |
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printf("%s%s%c", tag_removed, ce->name, |
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line_terminator); |
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} |
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} |
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} |
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static const char *ls_files_usage = |
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"ls-files [-z] [-t] (--[cached|deleted|others|stage|unmerged])* " |
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"[ --ignored [--exclude=<pattern>] [--exclude-from=<file>) ]"; |
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int main(int argc, char **argv) |
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{ |
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int i; |
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for (i = 1; i < argc; i++) { |
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char *arg = argv[i]; |
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if (!strcmp(arg, "-z")) { |
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line_terminator = 0; |
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} else if (!strcmp(arg, "-t")) { |
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tag_cached = "H "; |
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tag_unmerged = "M "; |
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tag_removed = "R "; |
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tag_other = "? "; |
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} else if (!strcmp(arg, "-c") || !strcmp(arg, "--cached")) { |
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show_cached = 1; |
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} else if (!strcmp(arg, "-d") || !strcmp(arg, "--deleted")) { |
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show_deleted = 1; |
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} else if (!strcmp(arg, "-o") || !strcmp(arg, "--others")) { |
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show_others = 1; |
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} else if (!strcmp(arg, "-i") || !strcmp(arg, "--ignored")) { |
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show_ignored = 1; |
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} else if (!strcmp(arg, "-s") || !strcmp(arg, "--stage")) { |
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show_stage = 1; |
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} else if (!strcmp(arg, "-u") || !strcmp(arg, "--unmerged")) { |
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/* There's no point in showing unmerged unless |
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* you also show the stage information. |
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*/ |
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show_stage = 1; |
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show_unmerged = 1; |
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} else if (!strcmp(arg, "-x") && i+1 < argc) { |
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add_exclude(argv[++i]); |
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} else if (!strncmp(arg, "--exclude=", 10)) { |
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add_exclude(arg+10); |
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} else if (!strcmp(arg, "-X") && i+1 < argc) { |
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add_excludes_from_file(argv[++i]); |
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} else if (!strncmp(arg, "--exclude-from=", 15)) { |
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add_excludes_from_file(arg+15); |
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} else |
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usage(ls_files_usage); |
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} |
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if (show_ignored && !nr_excludes) { |
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fprintf(stderr, "%s: --ignored needs some exclude pattern\n", |
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argv[0]); |
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exit(1); |
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} |
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/* With no flags, we default to showing the cached files */ |
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if (!(show_stage | show_deleted | show_others | show_unmerged)) |
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show_cached = 1; |
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read_cache(); |
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show_files(); |
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return 0; |
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}
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