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106d710bc1
Incremental repack without -a essentially boils down to:
rev-list --objects --unpacked --all |
pack-objects $new_pack
which picks up all loose objects that are still live and creates
a new pack.
This implements --unpacked=<existing pack> option to tell the
revision walking machinery to pretend as if objects in such a
pack are unpacked for the purpose of object listing. With this,
we could say:
rev-list --objects --unpacked=$active_pack --all |
pack-objects $new_pack
instead, to mean "all live loose objects but pretend as if
objects that are in this pack are also unpacked". The newly
created pack would be perfect for updating $active_pack by
replacing it.
Since pack-objects now knows how to do the rev-list's work
itself internally, you can also write the above example by:
pack-objects --unpacked=$active_pack --all $new_pack </dev/null
Signed-off-by: Junio C Hamano <junkio@cox.net>
78 lines
1.5 KiB
C
78 lines
1.5 KiB
C
#include "builtin.h"
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#include "cache.h"
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static const char prune_packed_usage[] =
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"git-prune-packed [-n]";
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static int dryrun;
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static void prune_dir(int i, DIR *dir, char *pathname, int len)
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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, NULL))
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continue;
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memcpy(pathname + len, de->d_name, 38);
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if (dryrun)
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printf("rm -f %s\n", pathname);
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else if (unlink(pathname) < 0)
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error("unable to unlink %s", pathname);
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}
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pathname[len] = 0;
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rmdir(pathname);
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}
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static void prune_packed_objects(void)
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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 (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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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);
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closedir(d);
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}
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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 i;
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for (i = 1; i < argc; i++) {
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const char *arg = argv[i];
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if (*arg == '-') {
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if (!strcmp(arg, "-n"))
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dryrun = 1;
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else
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usage(prune_packed_usage);
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continue;
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}
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/* Handle arguments here .. */
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usage(prune_packed_usage);
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}
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sync();
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prune_packed_objects();
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return 0;
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}
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