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v0.7.0
v0.7.0
Revision 8464010f974245b1e392d34ddbfb914fcf3d8c23 authored by David Steven Tweed on 07 February 2008, 02:55:14 UTC, committed by Junio C Hamano on 11 February 2008, 20:22:58 UTC
Write errors when repacking (eg, due to out-of-space conditions) can leave temporary packs (and possibly other files beginning with "tmp_") lying around which no existing codepath removes and which aren't obvious to the casual user. These can also be multi-megabyte files wasting noticeable space. Unfortunately there's no way to definitely tell in builtin-prune that a tmp_ file is not being used by a concurrent process, such as a fetch. However, it is documented that pruning should only be done on a quiet repository and --expire is honoured (using code from Johannes Schindelin, along with a test case he wrote) so that its safety is the same as that of loose object pruning. Since they might be signs of a problem (unlike orphaned loose objects) the names of any removed files are printed. Signed-off-by: David Tweed (david.tweed@gmail.com) Acked-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
1 parent 65ae89b
object-refs.c
#include "cache.h"
#include "object.h"
#include "decorate.h"
int track_object_refs = 0;
static struct decoration ref_decorate;
struct object_refs *lookup_object_refs(struct object *base)
{
return lookup_decoration(&ref_decorate, base);
}
static void add_object_refs(struct object *obj, struct object_refs *refs)
{
if (add_decoration(&ref_decorate, obj, refs))
die("object %s tried to add refs twice!", sha1_to_hex(obj->sha1));
}
struct object_refs *alloc_object_refs(unsigned count)
{
struct object_refs *refs;
size_t size = sizeof(*refs) + count*sizeof(struct object *);
refs = xcalloc(1, size);
refs->count = count;
return refs;
}
static int compare_object_pointers(const void *a, const void *b)
{
const struct object * const *pa = a;
const struct object * const *pb = b;
if (*pa == *pb)
return 0;
else if (*pa < *pb)
return -1;
else
return 1;
}
void set_object_refs(struct object *obj, struct object_refs *refs)
{
unsigned int i, j;
/* Do not install empty list of references */
if (refs->count < 1) {
free(refs);
return;
}
/* Sort the list and filter out duplicates */
qsort(refs->ref, refs->count, sizeof(refs->ref[0]),
compare_object_pointers);
for (i = j = 1; i < refs->count; i++) {
if (refs->ref[i] != refs->ref[i - 1])
refs->ref[j++] = refs->ref[i];
}
if (j < refs->count) {
/* Duplicates were found - reallocate list */
size_t size = sizeof(*refs) + j*sizeof(struct object *);
refs->count = j;
refs = xrealloc(refs, size);
}
for (i = 0; i < refs->count; i++)
refs->ref[i]->used = 1;
add_object_refs(obj, refs);
}
void mark_reachable(struct object *obj, unsigned int mask)
{
const struct object_refs *refs;
if (!track_object_refs)
die("cannot do reachability with object refs turned off");
/* If we've been here already, don't bother */
if (obj->flags & mask)
return;
obj->flags |= mask;
refs = lookup_object_refs(obj);
if (refs) {
unsigned i;
for (i = 0; i < refs->count; i++)
mark_reachable(refs->ref[i], mask);
}
}
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