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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-30 18:02:21 (GMT)
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-30 18:02:21 (GMT)
commit9b23b4bc1c64fd4ada4fd932195544cc839e0ff4 (patch)
treebec2be69cf780c28139611f6bd1f08f120e54acc /ls-files.c
parent4b18242190c40653549ec0663eea211bd87fcaed (diff)
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Rename "show-files" to "ls-files"
As suggested by Nicolas Pitre
Diffstat (limited to 'ls-files.c')
-rw-r--r--ls-files.c260
1 files changed, 260 insertions, 0 deletions
diff --git a/ls-files.c b/ls-files.c
new file mode 100644
index 0000000..c63c7aa
--- /dev/null
+++ b/ls-files.c
@@ -0,0 +1,260 @@
+/*
+ * This merges the file listing in the directory cache index
+ * with the actual working directory list, and shows different
+ * combinations of the two.
+ *
+ * Copyright (C) Linus Torvalds, 2005
+ */
+#include <dirent.h>
+#include <fnmatch.h>
+
+#include "cache.h"
+
+static int show_deleted = 0;
+static int show_cached = 0;
+static int show_others = 0;
+static int show_ignored = 0;
+static int show_stage = 0;
+static int show_unmerged = 0;
+static int line_terminator = '\n';
+
+static int nr_excludes;
+static const char **excludes;
+static int excludes_alloc;
+
+static void add_exclude(const char *string)
+{
+ if (nr_excludes == excludes_alloc) {
+ excludes_alloc = alloc_nr(excludes_alloc);
+ excludes = realloc(excludes, excludes_alloc*sizeof(char *));
+ }
+ excludes[nr_excludes++] = string;
+}
+
+static void add_excludes_from_file(const char *fname)
+{
+ int fd, i;
+ long size;
+ char *buf, *entry;
+
+ fd = open(fname, O_RDONLY);
+ if (fd < 0)
+ goto err;
+ size = lseek(fd, 0, SEEK_END);
+ if (size < 0)
+ goto err;
+ lseek(fd, 0, SEEK_SET);
+ if (size == 0) {
+ close(fd);
+ return;
+ }
+ buf = xmalloc(size);
+ if (read(fd, buf, size) != size)
+ goto err;
+ close(fd);
+
+ entry = buf;
+ for (i = 0; i < size; i++) {
+ if (buf[i] == '\n') {
+ if (entry != buf + i) {
+ buf[i] = 0;
+ add_exclude(entry);
+ }
+ entry = buf + i + 1;
+ }
+ }
+ return;
+
+err: perror(fname);
+ exit(1);
+}
+
+static int excluded(const char *pathname)
+{
+ int i;
+ if (nr_excludes) {
+ const char *basename = strrchr(pathname, '/');
+ basename = (basename) ? basename+1 : pathname;
+ for (i = 0; i < nr_excludes; i++)
+ if (fnmatch(excludes[i], basename, 0) == 0)
+ return 1;
+ }
+ return 0;
+}
+
+static const char **dir;
+static int nr_dir;
+static int dir_alloc;
+
+static void add_name(const char *pathname, int len)
+{
+ char *name;
+
+ if (cache_name_pos(pathname, len) >= 0)
+ return;
+
+ if (nr_dir == dir_alloc) {
+ dir_alloc = alloc_nr(dir_alloc);
+ dir = xrealloc(dir, dir_alloc*sizeof(char *));
+ }
+ name = xmalloc(len + 1);
+ memcpy(name, pathname, len + 1);
+ dir[nr_dir++] = name;
+}
+
+/*
+ * Read a directory tree. We currently ignore anything but
+ * directories and regular files. That's because git doesn't
+ * handle them at all yet. Maybe that will change some day.
+ *
+ * Also, we currently ignore all names starting with a dot.
+ * That likely will not change.
+ */
+static void read_directory(const char *path, const char *base, int baselen)
+{
+ DIR *dir = opendir(path);
+
+ if (dir) {
+ struct dirent *de;
+ char fullname[MAXPATHLEN + 1];
+ memcpy(fullname, base, baselen);
+
+ while ((de = readdir(dir)) != NULL) {
+ int len;
+
+ if (de->d_name[0] == '.')
+ continue;
+ if (excluded(de->d_name) != show_ignored)
+ continue;
+ len = strlen(de->d_name);
+ memcpy(fullname + baselen, de->d_name, len+1);
+
+ switch (DTYPE(de)) {
+ struct stat st;
+ default:
+ continue;
+ case DT_UNKNOWN:
+ if (lstat(fullname, &st))
+ continue;
+ if (S_ISREG(st.st_mode))
+ break;
+ if (!S_ISDIR(st.st_mode))
+ continue;
+ /* fallthrough */
+ case DT_DIR:
+ memcpy(fullname + baselen + len, "/", 2);
+ read_directory(fullname, fullname, baselen + len + 1);
+ continue;
+ case DT_REG:
+ break;
+ }
+ add_name(fullname, baselen + len);
+ }
+ closedir(dir);
+ }
+}
+
+static int cmp_name(const void *p1, const void *p2)
+{
+ const char *n1 = *(const char **)p1;
+ const char *n2 = *(const char **)p2;
+ int l1 = strlen(n1), l2 = strlen(n2);
+
+ return cache_name_compare(n1, l1, n2, l2);
+}
+
+static void show_files(void)
+{
+ int i;
+
+ /* For cached/deleted files we don't need to even do the readdir */
+ if (show_others) {
+ read_directory(".", "", 0);
+ qsort(dir, nr_dir, sizeof(char *), cmp_name);
+ for (i = 0; i < nr_dir; i++)
+ printf("%s%c", dir[i], line_terminator);
+ }
+ if (show_cached | show_stage) {
+ for (i = 0; i < active_nr; i++) {
+ struct cache_entry *ce = active_cache[i];
+ if (excluded(ce->name) != show_ignored)
+ continue;
+ if (show_unmerged && !ce_stage(ce))
+ continue;
+ if (!show_stage)
+ printf("%s%c", ce->name, line_terminator);
+ else
+ printf(/* "%06o %s %d %10d %s%c", */
+ "%06o %s %d %s%c",
+ ntohl(ce->ce_mode),
+ sha1_to_hex(ce->sha1),
+ ce_stage(ce),
+ /* ntohl(ce->ce_size), */
+ ce->name, line_terminator);
+ }
+ }
+ if (show_deleted) {
+ for (i = 0; i < active_nr; i++) {
+ struct cache_entry *ce = active_cache[i];
+ struct stat st;
+ if (excluded(ce->name) != show_ignored)
+ continue;
+ if (!stat(ce->name, &st))
+ continue;
+ printf("%s%c", ce->name, line_terminator);
+ }
+ }
+}
+
+static const char *show_files_usage =
+ "show-files [-z] (--[cached|deleted|others|stage|unmerged])* "
+ "[ --ignored [--exclude=<pattern>] [--exclude-from=<file>) ]";
+
+int main(int argc, char **argv)
+{
+ int i;
+
+ for (i = 1; i < argc; i++) {
+ char *arg = argv[i];
+
+ if (!strcmp(arg, "-z")) {
+ line_terminator = 0;
+ } else if (!strcmp(arg, "-c") || !strcmp(arg, "--cached")) {
+ show_cached = 1;
+ } else if (!strcmp(arg, "-d") || !strcmp(arg, "--deleted")) {
+ show_deleted = 1;
+ } else if (!strcmp(arg, "-o") || !strcmp(arg, "--others")) {
+ show_others = 1;
+ } else if (!strcmp(arg, "-i") || !strcmp(arg, "--ignored")) {
+ show_ignored = 1;
+ } else if (!strcmp(arg, "-s") || !strcmp(arg, "--stage")) {
+ show_stage = 1;
+ } else if (!strcmp(arg, "-u") || !strcmp(arg, "--unmerged")) {
+ // There's no point in showing unmerged unless you also show the stage information
+ show_stage = 1;
+ show_unmerged = 1;
+ } else if (!strcmp(arg, "-x") && i+1 < argc) {
+ add_exclude(argv[++i]);
+ } else if (!strncmp(arg, "--exclude=", 10)) {
+ add_exclude(arg+10);
+ } else if (!strcmp(arg, "-X") && i+1 < argc) {
+ add_excludes_from_file(argv[++i]);
+ } else if (!strncmp(arg, "--exclude-from=", 15)) {
+ add_excludes_from_file(arg+15);
+ } else
+ usage(show_files_usage);
+ }
+
+ if (show_ignored && !nr_excludes) {
+ fprintf(stderr, "%s: --ignored needs some exclude pattern\n", argv[0]);
+ exit(1);
+ }
+
+ /* With no flags, we default to showing the cached files */
+ if (!(show_stage | show_deleted | show_others | show_unmerged))
+ show_cached = 1;
+
+ read_cache();
+ show_files();
+ return 0;
+}