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https://github.com/git/git.git
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90b29cb7a8
"git prune" reports removal of loose object files that are no longer necessary only under the "-v" option, but unconditionally reports removal of temporary files that are no longer needed. The original thinking was that the presence of a leftover temporary file should be an unusual occurrence that may indicate an earlier failure of some sort, and the user may want to be reminded of it. Removing an unnecessary loose object file, on the other hand, is just part of the normal operation. That is why the former is always printed out and the latter only when -v is used. But neither report is particularly useful. Hide both of these behind the "-v" option for consistency. Signed-off-by: Brandon Casey <drafnel@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
176 lines
4.1 KiB
C
176 lines
4.1 KiB
C
#include "cache.h"
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#include "commit.h"
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#include "diff.h"
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#include "revision.h"
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#include "builtin.h"
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#include "reachable.h"
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#include "parse-options.h"
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#include "progress.h"
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#include "dir.h"
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static const char * const prune_usage[] = {
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"git prune [-n] [-v] [--expire <time>] [--] [<head>...]",
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NULL
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};
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static int show_only;
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static int verbose;
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static unsigned long expire;
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static int show_progress = -1;
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static int prune_tmp_object(const char *path, const char *filename)
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{
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const char *fullpath = mkpath("%s/%s", path, filename);
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struct stat st;
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if (lstat(fullpath, &st))
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return error("Could not stat '%s'", fullpath);
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if (st.st_mtime > expire)
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return 0;
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if (show_only || verbose)
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printf("Removing stale temporary file %s\n", fullpath);
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if (!show_only)
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unlink_or_warn(fullpath);
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return 0;
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}
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static int prune_object(char *path, const char *filename, const unsigned char *sha1)
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{
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const char *fullpath = mkpath("%s/%s", path, filename);
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struct stat st;
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if (lstat(fullpath, &st))
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return error("Could not stat '%s'", fullpath);
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if (st.st_mtime > expire)
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return 0;
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if (show_only || verbose) {
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enum object_type type = sha1_object_info(sha1, NULL);
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printf("%s %s\n", sha1_to_hex(sha1),
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(type > 0) ? typename(type) : "unknown");
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}
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if (!show_only)
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unlink_or_warn(fullpath);
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return 0;
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}
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static int prune_dir(int i, char *path)
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{
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DIR *dir = opendir(path);
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struct dirent *de;
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if (!dir)
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return 0;
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while ((de = readdir(dir)) != NULL) {
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char name[100];
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unsigned char sha1[20];
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if (is_dot_or_dotdot(de->d_name))
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continue;
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if (strlen(de->d_name) == 38) {
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sprintf(name, "%02x", i);
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memcpy(name+2, de->d_name, 39);
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if (get_sha1_hex(name, sha1) < 0)
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break;
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/*
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* Do we know about this object?
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* It must have been reachable
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*/
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if (lookup_object(sha1))
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continue;
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prune_object(path, de->d_name, sha1);
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continue;
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}
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if (!prefixcmp(de->d_name, "tmp_obj_")) {
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prune_tmp_object(path, de->d_name);
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continue;
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}
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fprintf(stderr, "bad sha1 file: %s/%s\n", path, de->d_name);
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}
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closedir(dir);
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if (!show_only)
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rmdir(path);
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return 0;
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}
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static void prune_object_dir(const char *path)
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{
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int i;
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for (i = 0; i < 256; i++) {
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static char dir[4096];
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sprintf(dir, "%s/%02x", path, i);
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prune_dir(i, dir);
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}
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}
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/*
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* Write errors (particularly out of space) can result in
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* failed temporary packs (and more rarely indexes and other
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* files beginning with "tmp_") accumulating in the object
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* and the pack directories.
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*/
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static void remove_temporary_files(const char *path)
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{
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DIR *dir;
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struct dirent *de;
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dir = opendir(path);
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if (!dir) {
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fprintf(stderr, "Unable to open directory %s\n", path);
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return;
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}
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while ((de = readdir(dir)) != NULL)
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if (!prefixcmp(de->d_name, "tmp_"))
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prune_tmp_object(path, de->d_name);
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closedir(dir);
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}
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int cmd_prune(int argc, const char **argv, const char *prefix)
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{
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struct rev_info revs;
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struct progress *progress = NULL;
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const struct option options[] = {
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OPT__DRY_RUN(&show_only, "do not remove, show only"),
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OPT__VERBOSE(&verbose, "report pruned objects"),
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OPT_BOOL(0, "progress", &show_progress, "show progress"),
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OPT_DATE(0, "expire", &expire,
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"expire objects older than <time>"),
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OPT_END()
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};
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char *s;
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expire = ULONG_MAX;
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save_commit_buffer = 0;
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read_replace_refs = 0;
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init_revisions(&revs, prefix);
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argc = parse_options(argc, argv, prefix, options, prune_usage, 0);
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while (argc--) {
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unsigned char sha1[20];
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const char *name = *argv++;
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if (!get_sha1(name, sha1)) {
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struct object *object = parse_object(sha1);
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if (!object)
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die("bad object: %s", name);
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add_pending_object(&revs, object, "");
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}
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else
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die("unrecognized argument: %s", name);
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}
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if (show_progress == -1)
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show_progress = isatty(2);
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if (show_progress)
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progress = start_progress_delay("Checking connectivity", 0, 0, 2);
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mark_reachable_objects(&revs, 1, progress);
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stop_progress(&progress);
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prune_object_dir(get_object_directory());
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prune_packed_objects(show_only);
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remove_temporary_files(get_object_directory());
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s = xstrdup(mkpath("%s/pack", get_object_directory()));
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remove_temporary_files(s);
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free(s);
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return 0;
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}
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