commit 7eb23a1c9f6f12484a3e7f55551398d25fcbfd01
from: Stefan Sperling <stsp@stsp.name>
via: Thomas Adam <thomas@xteddy.org>
date: Mon Jan 10 21:58:18 2022 UTC

only open raw objects if necessary while writing out pack file data

significantly speeds up the "writing pack: " step of gotadmin pack

commit - 7cacbda68302e35afc316f115b101992f4069493
commit + 7eb23a1c9f6f12484a3e7f55551398d25fcbfd01
blob - cd456692c1f984bf69eba8d3a5fd3e93851a19c6
blob + 3c4b293336a4354fd8dd376c01e39b7f04a85458
--- lib/pack_create.c
+++ lib/pack_create.c
@@ -1193,10 +1193,10 @@ genpack(uint8_t *pack_sha1, FILE *packfile, FILE *delt
 			goto done;
 		m = meta[i];
 		m->off = ftello(packfile);
-		err = got_object_raw_open(&raw, &outfd, repo, &m->id);
-		if (err)
-			goto done;
 		if (m->delta_len == 0) {
+			err = got_object_raw_open(&raw, &outfd, repo, &m->id);
+			if (err)
+				goto done;
 			err = packhdr(&nh, buf, sizeof(buf),
 			    m->obj_type, raw->size);
 			if (err)
@@ -1214,6 +1214,8 @@ genpack(uint8_t *pack_sha1, FILE *packfile, FILE *delt
 			if (err)
 				goto done;
 			packfile_size += outlen;
+			got_object_raw_close(raw);
+			raw = NULL;
 		} else {
 			off_t remain;
 			if (delta_file == NULL) {
@@ -1290,8 +1292,6 @@ genpack(uint8_t *pack_sha1, FILE *packfile, FILE *delt
 				goto done;
 			packfile_size += outlen;
 		}
-		got_object_raw_close(raw);
-		raw = NULL;
 	}
 	SHA1Final(pack_sha1, &ctx);
 	n = fwrite(pack_sha1, 1, SHA1_DIGEST_LENGTH, packfile);