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94421474e0
This moves major part of builtin-prune into a separate file, reachable.c. It is used to mark the objects that are reachable from refs, and optionally from reflogs. The patch looks very large, but if you look at it with diff -C, which this message is formatted in, most of them are copied lines and there are very little additions. Signed-off-by: Junio C Hamano <junkio@cox.net>
105 lines
1.9 KiB
C
105 lines
1.9 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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static const char prune_usage[] = "git-prune [-n]";
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static int show_only;
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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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char buf[20];
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const char *type;
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if (show_only) {
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if (sha1_object_info(sha1, buf, NULL))
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type = "unknown";
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else
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type = buf;
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printf("%s %s\n", sha1_to_hex(sha1), type);
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return 0;
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}
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unlink(mkpath("%s/%s", path, filename));
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rmdir(path);
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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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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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int cmd_prune(int argc, const char **argv, const char *prefix)
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{
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int i;
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struct rev_info revs;
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for (i = 1; i < argc; i++) {
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const char *arg = argv[i];
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if (!strcmp(arg, "-n")) {
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show_only = 1;
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continue;
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}
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usage(prune_usage);
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}
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save_commit_buffer = 0;
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init_revisions(&revs, prefix);
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mark_reachable_objects(&revs, 1);
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prune_object_dir(get_object_directory());
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sync();
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prune_packed_objects(show_only);
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return 0;
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}
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