42 lines
1.2 KiB
Diff
42 lines
1.2 KiB
Diff
From 501ae4e93fd6fa2f7d20d00d1b011f9006802eae Mon Sep 17 00:00:00 2001
|
|
From: "Bernhard M. Wiedemann" <bwiedemann@suse.de>
|
|
Date: Fri, 3 May 2019 16:32:24 +0200
|
|
Subject: [PATCH] Override mtime with zip -X
|
|
|
|
with SOURCE_DATE_EPOCH
|
|
to allow for reproducible builds of .zip files
|
|
|
|
See https://reproducible-builds.org/ for why this is good
|
|
and https://reproducible-builds.org/specs/source-date-epoch/
|
|
for the definition of this variable.
|
|
|
|
Uses clamping to keep older mtimes than SOURCE_DATE_EPOCH intact.
|
|
---
|
|
zipup.c | 8 ++++++++
|
|
1 file changed, 8 insertions(+)
|
|
|
|
--- a/zipup.c
|
|
+++ b/zipup.c
|
|
@@ -414,6 +414,7 @@ struct zlist far *z; /* zip entry to
|
|
ush tempcext = 0;
|
|
char *tempextra = NULL;
|
|
char *tempcextra = NULL;
|
|
+ const char *source_date_epoch;
|
|
|
|
|
|
#ifdef WINDLL
|
|
@@ -674,6 +675,13 @@ struct zlist far *z; /* zip entry to
|
|
|
|
} /* strcmp(z->name, "-") == 0 */
|
|
|
|
+ if (extra_fields == 0 && (source_date_epoch = getenv("SOURCE_DATE_EPOCH")) != NULL) {
|
|
+ time_t epoch = strtoull(source_date_epoch, NULL, 10);
|
|
+ if (epoch > 0) {
|
|
+ ulg epochtim = unix2dostime(&epoch);
|
|
+ if (z->tim > epochtim) z->tim = epochtim;
|
|
+ }
|
|
+ }
|
|
if (extra_fields == 2) {
|
|
unsigned len;
|
|
char *p;
|