50 lines
1.7 KiB
Diff
50 lines
1.7 KiB
Diff
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From 495b79d8e9a44ad0ada965add3a046120646e7e0 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Stefan=20Br=C3=83=C2=BCns?= <stefan.bruens@rwth-aachen.de>
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Date: Thu, 12 Jan 2017 18:04:57 +0100
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Subject: [PATCH 1/2] mkromfs: make build reproducible, use buildtime from
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SOURCE_DATE_EPOCH
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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The environment variable SOURCE_DATE_EPOCH is the common approach for
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getting reproducible timestamps and thus builds. In case the variable
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is not set, keep using the current time of the mkromfs run.
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Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
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---
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base/mkromfs.c | 10 +++++++++-
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1 file changed, 9 insertions(+), 1 deletion(-)
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diff --git a/base/mkromfs.c b/base/mkromfs.c
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index b7bc6bf..9b81c46 100644
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--- a/base/mkromfs.c
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+++ b/base/mkromfs.c
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@@ -2280,6 +2280,8 @@ main(int argc, char *argv[])
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int compaction = 0;
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Xlist_element *Xlist_scan = NULL, *Xlist_head = NULL;
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char pa[PATH_STR_LEN];
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+ time_t buildtime = 0;
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+ char* env_source_date_epoch;
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memset(pa, 0x00, PATH_STR_LEN);
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@@ -2336,7 +2338,13 @@ main(int argc, char *argv[])
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#endif
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fprintf(out,"\n#include \"stdint_.h\"\n");
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fprintf(out,"\n#include \"time_.h\"\n\n");
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- fprintf(out," time_t gs_romfs_buildtime = %ld;\n\n", time(NULL));
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+
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+ if ((env_source_date_epoch = getenv("SOURCE_DATE_EPOCH"))) {
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+ buildtime = strtoul(env_source_date_epoch, NULL, 10);
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+ }
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+ if (!buildtime)
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+ buildtime = time(NULL);
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+ fprintf(out," time_t gs_romfs_buildtime = %ld;\n\n", buildtime);
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/* process the remaining arguments (options interspersed with paths) */
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for (; atarg < argc; atarg++) {
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--
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2.11.0
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