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162 lines
3.4 KiB
162 lines
3.4 KiB
#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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|
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static const char * const prune_usage[] = { |
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"git prune [-n] [--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 unsigned long expire; |
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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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if (expire) { |
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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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} |
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if (show_only) { |
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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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} else |
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unlink(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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int len = strlen(de->d_name); |
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switch (len) { |
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case 2: |
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if (de->d_name[1] != '.') |
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break; |
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case 1: |
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if (de->d_name[0] != '.') |
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break; |
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continue; |
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case 38: |
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sprintf(name, "%02x", i); |
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memcpy(name+2, de->d_name, len+1); |
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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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fprintf(stderr, "bad sha1 file: %s/%s\n", path, de->d_name); |
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} |
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if (!show_only) |
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rmdir(path); |
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closedir(dir); |
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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 begining with "tmp_") accumulating in the |
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* object directory. |
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*/ |
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static void remove_temporary_files(void) |
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{ |
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DIR *dir; |
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struct dirent *de; |
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char* dirname=get_object_directory(); |
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dir = opendir(dirname); |
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if (!dir) { |
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fprintf(stderr, "Unable to open object directory %s\n", |
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dirname); |
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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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char name[PATH_MAX]; |
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int c = snprintf(name, PATH_MAX, "%s/%s", |
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dirname, de->d_name); |
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if (c < 0 || c >= PATH_MAX) |
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continue; |
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if (expire) { |
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struct stat st; |
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if (stat(name, &st) != 0 || st.st_mtime >= expire) |
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continue; |
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} |
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printf("Removing stale temporary file %s\n", name); |
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if (!show_only) |
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unlink(name); |
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} |
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} |
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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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const struct option options[] = { |
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OPT_BOOLEAN('n', NULL, &show_only, |
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"do not remove, show only"), |
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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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save_commit_buffer = 0; |
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init_revisions(&revs, prefix); |
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argc = parse_options(argc, argv, 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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mark_reachable_objects(&revs, 1); |
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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(); |
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return 0; |
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}
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