--- /dev/null
+/*
+ * "git clean" builtin command
+ *
+ * Copyright (C) 2007 Shawn Bohrer
+ *
+ * Based on git-clean.sh by Pavel Roskin
+ */
+
+#include "builtin.h"
+#include "cache.h"
+#include "dir.h"
+#include "parse-options.h"
+
+static int force;
+
+static const char *const builtin_clean_usage[] = {
+ "git-clean [-d] [-f] [-n] [-q] [-x | -X] [--] <paths>...",
+ NULL
+};
+
+static int git_clean_config(const char *var, const char *value)
+{
+ if (!strcmp(var, "clean.requireforce"))
+ force = !git_config_bool(var, value);
+ return 0;
+}
+
+int cmd_clean(int argc, const char **argv, const char *prefix)
+{
+ int j;
+ int show_only = 0, remove_directories = 0, quiet = 0, ignored = 0;
+ int ignored_only = 0, baselen = 0;
+ struct strbuf directory;
+ struct dir_struct dir;
+ const char *path, *base;
+ static const char **pathspec;
+ struct option options[] = {
+ OPT__QUIET(&quiet),
+ OPT__DRY_RUN(&show_only),
+ OPT_BOOLEAN('f', NULL, &force, "force"),
+ OPT_BOOLEAN('d', NULL, &remove_directories,
+ "remove whole directories"),
+ OPT_BOOLEAN('x', NULL, &ignored, "remove ignored files, too"),
+ OPT_BOOLEAN('X', NULL, &ignored_only,
+ "remove only ignored files"),
+ OPT_END()
+ };
+
+ git_config(git_clean_config);
+ argc = parse_options(argc, argv, options, builtin_clean_usage, 0);
+
+ memset(&dir, 0, sizeof(dir));
+ if (ignored_only) {
+ dir.show_ignored =1;
+ dir.exclude_per_dir = ".gitignore";
+ }
+
+ if (ignored && ignored_only)
+ die("-x and -X cannot be used together");
+
+ if (!show_only && !force)
+ die("clean.requireForce set and -n or -f not given; refusing to clean");
+
+ dir.show_other_directories = 1;
+
+ if (!ignored) {
+ dir.exclude_per_dir = ".gitignore";
+ if (!access(git_path("info/exclude"), F_OK)) {
+ char *exclude_path = git_path("info/exclude");
+ add_excludes_from_file(&dir, exclude_path);
+ }
+ }
+
+ pathspec = get_pathspec(prefix, argv);
+ read_cache();
+
+ /*
+ * Calculate common prefix for the pathspec, and
+ * use that to optimize the directory walk
+ */
+ baselen = common_prefix(pathspec);
+ path = ".";
+ base = "";
+ if (baselen)
+ path = base = xmemdupz(*pathspec, baselen);
+ read_directory(&dir, path, base, baselen, pathspec);
+ strbuf_init(&directory, 0);
+
+ for (j = 0; j < dir.nr; ++j) {
+ struct dir_entry *ent = dir.entries[j];
+ int len, pos, specs;
+ struct cache_entry *ce;
+ struct stat st;
+ char *seen;
+
+ /*
+ * Remove the '/' at the end that directory
+ * walking adds for directory entries.
+ */
+ len = ent->len;
+ if (len && ent->name[len-1] == '/')
+ len--;
+ pos = cache_name_pos(ent->name, len);
+ if (0 <= pos)
+ continue; /* exact match */
+ pos = -pos - 1;
+ if (pos < active_nr) {
+ ce = active_cache[pos];
+ if (ce_namelen(ce) == len &&
+ !memcmp(ce->name, ent->name, len))
+ continue; /* Yup, this one exists unmerged */
+ }
+
+ if (!lstat(ent->name, &st) && (S_ISDIR(st.st_mode))) {
+ int matched_path = 0;
+ strbuf_addstr(&directory, ent->name);
+ if (pathspec) {
+ for (specs =0; pathspec[specs]; ++specs)
+ /* nothing */;
+ seen = xcalloc(specs, 1);
+ /* Check if directory was explictly passed as
+ * pathspec. If so we want to remove it */
+ if (match_pathspec(pathspec, ent->name, ent->len,
+ baselen, seen))
+ matched_path = 1;
+ free(seen);
+ }
+ if (show_only && (remove_directories || matched_path)) {
+ printf("Would remove %s\n", directory.buf);
+ } else if (quiet && (remove_directories || matched_path)) {
+ remove_dir_recursively(&directory, 0);
+ } else if (remove_directories || matched_path) {
+ printf("Removing %s\n", directory.buf);
+ remove_dir_recursively(&directory, 0);
+ } else if (show_only) {
+ printf("Would not remove %s\n", directory.buf);
+ } else {
+ printf("Not removing %s\n", directory.buf);
+ }
+ strbuf_reset(&directory);
+ } else {
+ if (show_only) {
+ printf("Would remove %s\n", ent->name);
+ continue;
+ } else if (!quiet) {
+ printf("Removing %s\n", ent->name);
+ }
+ unlink(ent->name);
+ }
+ }
+
+ strbuf_release(&directory);
+ return 0;
+}
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