proxmox-mirrors/libgit2
1
0
Fork 0
mirror of https://git.proxmox.com/git/libgit2 synced 2025-05-08 06:15:02 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

indexer: inject one base at a time

Browse Source 
There may be multiple deltas referencing the same base as well as OFS
deltas which rely on a thin delta. Deal with both at the same time by
injecting a single object and going back up to the main
delta-resolving loop.
This commit is contained in:
Carlos Martín Nieto 2013-10-08 11:54:50 +02:00
parent b4342b116d
commit 7fb6eb278b
1 changed files with 40 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

70
src/indexer.c
View File

@ -683,51 +683,59 @@ cleanup:
static int fix_thin_pack(git_indexer_stream *idx, git_transfer_progress *stats)
{
int error;
int error, found_ref_delta = 0;
unsigned int i;
struct delta_info *delta;
size_t size;
git_otype type;
git_mwindow *w = NULL;
git_off_t curpos;
unsigned char *base_info;
unsigned int left = 0;
git_oid base;
assert(git_vector_length(&idx->deltas) > 0);
if (idx->odb == NULL) {
giterr_set(GITERR_INDEXER, "cannot fix a thin pack without an ODB");
return -1;
}
/* Loop until we find the first REF delta */
git_vector_foreach(&idx->deltas, i, delta) {
size_t size;
git_otype type;
git_mwindow *w = NULL;
git_off_t curpos = delta->delta_off;
unsigned char *base_info;
unsigned int left = 0;
git_oid base;
curpos = delta->delta_off;
error = git_packfile_unpack_header(&size, &type, &idx->pack->mwf, &w, &curpos);
git_mwindow_close(&w);
if (error < 0)
return error;
if (type != GIT_OBJ_REF_DELTA) {
giterr_set(GITERR_INDEXER, "delta with missing base is not REF_DELTA");
return -1;
if (type == GIT_OBJ_REF_DELTA) {
found_ref_delta = 1;
break;
}
/* curpos now points to the base information, which is an OID */
base_info = git_mwindow_open(&idx->pack->mwf, &w, curpos, GIT_OID_RAWSZ, &left);
if (base_info == NULL) {
giterr_set(GITERR_INDEXER, "failed to map delta information");
return -1;
}
git_oid_fromraw(&base, base_info);
git_mwindow_close(&w);
if (inject_object(idx, &base) < 0)
return -1;
stats->total_objects++;
stats->local_objects++;
}
if (!found_ref_delta) {
giterr_set(GITERR_INDEXER, "no REF_DELTA found, cannot inject object");
return -1;
}
/* curpos now points to the base information, which is an OID */
base_info = git_mwindow_open(&idx->pack->mwf, &w, curpos, GIT_OID_RAWSZ, &left);
if (base_info == NULL) {
giterr_set(GITERR_INDEXER, "failed to map delta information");
return -1;
}
git_oid_fromraw(&base, base_info);
git_mwindow_close(&w);
if (inject_object(idx, &base) < 0)
return -1;
stats->total_objects++;
stats->local_objects++;
return 0;
}
@ -764,8 +772,10 @@ static int resolve_deltas(git_indexer_stream *idx, git_transfer_progress *stats)
i--;
}
if (!progressed && (fix_thin_pack(idx, stats) < 0))
return -1;
if (!progressed && (fix_thin_pack(idx, stats) < 0)) {
giterr_set(GITERR_INDEXER, "missing delta bases");
return -1;
}
}
return 0;