mirror of
https://github.com/git/git.git
synced 2024-11-24 02:17:02 +08:00
d34e70d6b8
Both git-prune and git-repack (and thus, git-gc) try to rmdir while holding a DIR* handle on the directory. This can leave dangling empty directories in the .git/objects on platforms where directory cannot be removed while they are open. First call closedir() and then rmdir(); that is more logical ordering. Reported-by: John Chen <john0312@gmail.com> Reported-by: Stefan Naewe <stefan.naewe@gmail.com> Signed-off-by: Karsten Blees <blees@dcon.de> Improved-and-Acked-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
87 lines
1.9 KiB
C
87 lines
1.9 KiB
C
#include "builtin.h"
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#include "cache.h"
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#include "progress.h"
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#include "parse-options.h"
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static const char * const prune_packed_usage[] = {
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"git prune-packed [-n|--dry-run] [-q|--quiet]",
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NULL
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};
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#define DRY_RUN 01
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#define VERBOSE 02
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static struct progress *progress;
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static void prune_dir(int i, DIR *dir, char *pathname, int len, int opts)
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{
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struct dirent *de;
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char hex[40];
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sprintf(hex, "%02x", i);
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while ((de = readdir(dir)) != NULL) {
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unsigned char sha1[20];
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if (strlen(de->d_name) != 38)
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continue;
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memcpy(hex+2, de->d_name, 38);
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if (get_sha1_hex(hex, sha1))
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continue;
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if (!has_sha1_pack(sha1))
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continue;
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memcpy(pathname + len, de->d_name, 38);
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if (opts & DRY_RUN)
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printf("rm -f %s\n", pathname);
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else
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unlink_or_warn(pathname);
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display_progress(progress, i + 1);
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}
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}
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void prune_packed_objects(int opts)
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{
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int i;
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static char pathname[PATH_MAX];
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const char *dir = get_object_directory();
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int len = strlen(dir);
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if (opts == VERBOSE)
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progress = start_progress_delay("Removing duplicate objects",
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256, 95, 2);
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if (len > PATH_MAX - 42)
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die("impossible object directory");
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memcpy(pathname, dir, len);
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if (len && pathname[len-1] != '/')
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pathname[len++] = '/';
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for (i = 0; i < 256; i++) {
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DIR *d;
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display_progress(progress, i + 1);
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sprintf(pathname + len, "%02x/", i);
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d = opendir(pathname);
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if (!d)
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continue;
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prune_dir(i, d, pathname, len + 3, opts);
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closedir(d);
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pathname[len + 2] = '\0';
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rmdir(pathname);
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}
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stop_progress(&progress);
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}
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int cmd_prune_packed(int argc, const char **argv, const char *prefix)
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{
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int opts = isatty(2) ? VERBOSE : 0;
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const struct option prune_packed_options[] = {
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OPT_BIT('n', "dry-run", &opts, "dry run", DRY_RUN),
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OPT_NEGBIT('q', "quiet", &opts, "be quiet", VERBOSE),
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OPT_END()
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};
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argc = parse_options(argc, argv, prefix, prune_packed_options,
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prune_packed_usage, 0);
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prune_packed_objects(opts);
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return 0;
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}
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