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-rw-r--r--ls-files.c474
1 files changed, 474 insertions, 0 deletions
diff --git a/ls-files.c b/ls-files.c
new file mode 100644
index 0000000000..13ca02ec73
--- /dev/null
+++ b/ls-files.c
@@ -0,0 +1,474 @@
+/*
+ * 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 show_killed = 0;
+static int line_terminator = '\n';
+
+static const char *tag_cached = "";
+static const char *tag_unmerged = "";
+static const char *tag_removed = "";
+static const char *tag_other = "";
+static const char *tag_killed = "";
+
+static char *exclude_per_dir = NULL;
+
+/* We maintain three exclude pattern lists:
+ * EXC_CMDL lists patterns explicitly given on the command line.
+ * EXC_DIRS lists patterns obtained from per-directory ignore files.
+ * EXC_FILE lists patterns from fallback ignore files.
+ */
+#define EXC_CMDL 0
+#define EXC_DIRS 1
+#define EXC_FILE 2
+static struct exclude_list {
+ int nr;
+ int alloc;
+ struct exclude {
+ const char *pattern;
+ const char *base;
+ int baselen;
+ } **excludes;
+} exclude_list[3];
+
+static void add_exclude(const char *string, const char *base,
+ int baselen, struct exclude_list *which)
+{
+ struct exclude *x = xmalloc(sizeof (*x));
+
+ x->pattern = string;
+ x->base = base;
+ x->baselen = baselen;
+ if (which->nr == which->alloc) {
+ which->alloc = alloc_nr(which->alloc);
+ which->excludes = realloc(which->excludes,
+ which->alloc * sizeof(x));
+ }
+ which->excludes[which->nr++] = x;
+}
+
+static int add_excludes_from_file_1(const char *fname,
+ const char *base,
+ int baselen,
+ struct exclude_list *which)
+{
+ 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 0;
+ }
+ 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 && entry[0] != '#') {
+ buf[i] = 0;
+ add_exclude(entry, base, baselen, which);
+ }
+ entry = buf + i + 1;
+ }
+ }
+ return 0;
+
+ err:
+ if (0 <= fd)
+ close(fd);
+ return -1;
+}
+
+static void add_excludes_from_file(const char *fname)
+{
+ if (add_excludes_from_file_1(fname, "", 0,
+ &exclude_list[EXC_FILE]) < 0)
+ die("cannot use %s as an exclude file", fname);
+}
+
+static int push_exclude_per_directory(const char *base, int baselen)
+{
+ char exclude_file[PATH_MAX];
+ struct exclude_list *el = &exclude_list[EXC_DIRS];
+ int current_nr = el->nr;
+
+ if (exclude_per_dir) {
+ memcpy(exclude_file, base, baselen);
+ strcpy(exclude_file + baselen, exclude_per_dir);
+ add_excludes_from_file_1(exclude_file, base, baselen, el);
+ }
+ return current_nr;
+}
+
+static void pop_exclude_per_directory(int stk)
+{
+ struct exclude_list *el = &exclude_list[EXC_DIRS];
+
+ while (stk < el->nr)
+ free(el->excludes[--el->nr]);
+}
+
+/* Scan the list and let the last match determines the fate.
+ * Return 1 for exclude, 0 for include and -1 for undecided.
+ */
+static int excluded_1(const char *pathname,
+ int pathlen,
+ struct exclude_list *el)
+{
+ int i;
+
+ if (el->nr) {
+ for (i = el->nr - 1; 0 <= i; i--) {
+ struct exclude *x = el->excludes[i];
+ const char *exclude = x->pattern;
+ int to_exclude = 1;
+
+ if (*exclude == '!') {
+ to_exclude = 0;
+ exclude++;
+ }
+
+ if (!strchr(exclude, '/')) {
+ /* match basename */
+ const char *basename = strrchr(pathname, '/');
+ basename = (basename) ? basename+1 : pathname;
+ if (fnmatch(exclude, basename, 0) == 0)
+ return to_exclude;
+ }
+ else {
+ /* match with FNM_PATHNAME:
+ * exclude has base (baselen long) inplicitly
+ * in front of it.
+ */
+ int baselen = x->baselen;
+ if (*exclude == '/')
+ exclude++;
+
+ if (pathlen < baselen ||
+ (baselen && pathname[baselen-1] != '/') ||
+ strncmp(pathname, x->base, baselen))
+ continue;
+
+ if (fnmatch(exclude, pathname+baselen,
+ FNM_PATHNAME) == 0)
+ return to_exclude;
+ }
+ }
+ }
+ return -1; /* undecided */
+}
+
+static int excluded(const char *pathname)
+{
+ int pathlen = strlen(pathname);
+ int st;
+
+ for (st = EXC_CMDL; st <= EXC_FILE; st++) {
+ switch (excluded_1(pathname, pathlen, &exclude_list[st])) {
+ case 0:
+ return 0;
+ case 1:
+ return 1;
+ }
+ }
+ return 0;
+}
+
+struct nond_on_fs {
+ int len;
+ char name[0];
+};
+
+static struct nond_on_fs **dir;
+static int nr_dir;
+static int dir_alloc;
+
+static void add_name(const char *pathname, int len)
+{
+ struct nond_on_fs *ent;
+
+ 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(ent));
+ }
+ ent = xmalloc(sizeof(*ent) + len + 1);
+ ent->len = len;
+ memcpy(ent->name, pathname, len);
+ dir[nr_dir++] = ent;
+}
+
+/*
+ * Read a directory tree. We currently ignore anything but
+ * directories, regular files and symlinks. That's because git
+ * doesn't handle them at all yet. Maybe that will change some
+ * day.
+ *
+ * Also, we ignore the name ".git" (even if it is not a directory).
+ * That likely will not change.
+ */
+static void read_directory(const char *path, const char *base, int baselen)
+{
+ DIR *dir = opendir(path);
+
+ if (dir) {
+ int exclude_stk;
+ struct dirent *de;
+ char fullname[MAXPATHLEN + 1];
+ memcpy(fullname, base, baselen);
+
+ exclude_stk = push_exclude_per_directory(base, baselen);
+
+ while ((de = readdir(dir)) != NULL) {
+ int len;
+
+ if ((de->d_name[0] == '.') &&
+ (de->d_name[1] == 0 ||
+ !strcmp(de->d_name + 1, ".") ||
+ !strcmp(de->d_name + 1, "git")))
+ continue;
+ len = strlen(de->d_name);
+ memcpy(fullname + baselen, de->d_name, len+1);
+ if (excluded(fullname) != show_ignored)
+ continue;
+
+ switch (DTYPE(de)) {
+ struct stat st;
+ default:
+ continue;
+ case DT_UNKNOWN:
+ if (lstat(fullname, &st))
+ continue;
+ if (S_ISREG(st.st_mode) || S_ISLNK(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:
+ case DT_LNK:
+ break;
+ }
+ add_name(fullname, baselen + len);
+ }
+ closedir(dir);
+
+ pop_exclude_per_directory(exclude_stk);
+ }
+}
+
+static int cmp_name(const void *p1, const void *p2)
+{
+ const struct nond_on_fs *e1 = *(const struct nond_on_fs **)p1;
+ const struct nond_on_fs *e2 = *(const struct nond_on_fs **)p2;
+
+ return cache_name_compare(e1->name, e1->len,
+ e2->name, e2->len);
+}
+
+static void show_killed_files(void)
+{
+ int i;
+ for (i = 0; i < nr_dir; i++) {
+ struct nond_on_fs *ent = dir[i];
+ char *cp, *sp;
+ int pos, len, killed = 0;
+
+ for (cp = ent->name; cp - ent->name < ent->len; cp = sp + 1) {
+ sp = strchr(cp, '/');
+ if (!sp) {
+ /* If ent->name is prefix of an entry in the
+ * cache, it will be killed.
+ */
+ pos = cache_name_pos(ent->name, ent->len);
+ if (0 <= pos)
+ die("bug in show-killed-files");
+ pos = -pos - 1;
+ while (pos < active_nr &&
+ ce_stage(active_cache[pos]))
+ pos++; /* skip unmerged */
+ if (active_nr <= pos)
+ break;
+ /* pos points at a name immediately after
+ * ent->name in the cache. Does it expect
+ * ent->name to be a directory?
+ */
+ len = ce_namelen(active_cache[pos]);
+ if ((ent->len < len) &&
+ !strncmp(active_cache[pos]->name,
+ ent->name, ent->len) &&
+ active_cache[pos]->name[ent->len] == '/')
+ killed = 1;
+ break;
+ }
+ if (0 <= cache_name_pos(ent->name, sp - ent->name)) {
+ /* If any of the leading directories in
+ * ent->name is registered in the cache,
+ * ent->name will be killed.
+ */
+ killed = 1;
+ break;
+ }
+ }
+ if (killed)
+ printf("%s%.*s%c", tag_killed,
+ dir[i]->len, dir[i]->name,
+ line_terminator);
+ }
+}
+
+static void show_files(void)
+{
+ int i;
+
+ /* For cached/deleted files we don't need to even do the readdir */
+ if (show_others || show_killed) {
+ read_directory(".", "", 0);
+ qsort(dir, nr_dir, sizeof(struct nond_on_fs *), cmp_name);
+ if (show_others)
+ for (i = 0; i < nr_dir; i++)
+ printf("%s%.*s%c", tag_other,
+ dir[i]->len, dir[i]->name,
+ line_terminator);
+ if (show_killed)
+ show_killed_files();
+ }
+ 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%s%c",
+ ce_stage(ce) ? tag_unmerged :
+ tag_cached,
+ ce->name, line_terminator);
+ else
+ printf("%s%06o %s %d\t%s%c",
+ ce_stage(ce) ? tag_unmerged :
+ tag_cached,
+ ntohl(ce->ce_mode),
+ sha1_to_hex(ce->sha1),
+ ce_stage(ce),
+ 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 (!lstat(ce->name, &st))
+ continue;
+ printf("%s%s%c", tag_removed, ce->name,
+ line_terminator);
+ }
+ }
+}
+
+static const char ls_files_usage[] =
+ "git-ls-files [-z] [-t] (--[cached|deleted|others|stage|unmerged|killed])* "
+ "[ --ignored ] [--exclude=<pattern>] [--exclude-from=<file>] "
+ "[ --exclude-per-directory=<filename> ]";
+
+int main(int argc, char **argv)
+{
+ int i;
+ int exc_given = 0;
+
+ for (i = 1; i < argc; i++) {
+ char *arg = argv[i];
+
+ if (!strcmp(arg, "-z")) {
+ line_terminator = 0;
+ } else if (!strcmp(arg, "-t")) {
+ tag_cached = "H ";
+ tag_unmerged = "M ";
+ tag_removed = "R ";
+ tag_other = "? ";
+ tag_killed = "K ";
+ } 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, "-k") || !strcmp(arg, "--killed")) {
+ show_killed = 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) {
+ exc_given = 1;
+ add_exclude(argv[++i], "", 0, &exclude_list[EXC_CMDL]);
+ } else if (!strncmp(arg, "--exclude=", 10)) {
+ exc_given = 1;
+ add_exclude(arg+10, "", 0, &exclude_list[EXC_CMDL]);
+ } else if (!strcmp(arg, "-X") && i+1 < argc) {
+ exc_given = 1;
+ add_excludes_from_file(argv[++i]);
+ } else if (!strncmp(arg, "--exclude-from=", 15)) {
+ exc_given = 1;
+ add_excludes_from_file(arg+15);
+ } else if (!strncmp(arg, "--exclude-per-directory=", 24)) {
+ exc_given = 1;
+ exclude_per_dir = arg + 24;
+ } else
+ usage(ls_files_usage);
+ }
+
+ if (show_ignored && !exc_given) {
+ 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_killed))
+ show_cached = 1;
+
+ read_cache();
+ show_files();
+ return 0;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-09 18:24:36 +0000