From bd7c2384b8b15d32d7c498157297518c53612781 Mon Sep 17 00:00:00 2001
From: Timothy Kenno Handojo <timothykh@meshbio.com>
Date: Wed, 12 Jun 2024 18:09:00 +0800
Subject: [PATCH] reproducibility: timestamp on generated files; remove random
 & time env vars

---
 bin/misc-functions.sh  | 4 ++++
 bin/phase-functions.sh | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/bin/misc-functions.sh b/bin/misc-functions.sh
index e7ca2a8a92..c6ef8d7309 100755
--- a/bin/misc-functions.sh
+++ b/bin/misc-functions.sh
@@ -528,6 +528,10 @@ __dyn_package() {
 		echo -n "${BUILD_ID}" > "${PORTAGE_BUILDDIR}"/build-info/BUILD_ID
 	fi
 
+	if [[ "${BUILD_TIME}" == "ebuild" ]]; then
+		find ${D} -exec touch -h -r ${EBUILD} {} \;
+	fi
+
 	if [[ "${BINPKG_FORMAT}" == "xpak" ]]; then
 		local tar_options=""
 
diff --git a/bin/phase-functions.sh b/bin/phase-functions.sh
index d037cf6776..51bae9f01a 100644
--- a/bin/phase-functions.sh
+++ b/bin/phase-functions.sh
@@ -90,7 +90,7 @@ __filter_readonly_variables() {
 	local bash_misc_vars="BASH BASH_.* COLUMNS COMP_WORDBREAKS HISTCMD
 		HISTFILE HOSTNAME HOSTTYPE IFS LINENO MACHTYPE OLDPWD
 		OPTERR OPTIND OSTYPE POSIXLY_CORRECT PS4 PWD RANDOM
-		SECONDS SHLVL _"
+		SECONDS SHLVL _ SRANDOM EPOCHREALTIME EPOCHSECONDS"
 	local filtered_sandbox_vars="SANDBOX_ACTIVE SANDBOX_BASHRC
 		SANDBOX_DEBUG_LOG SANDBOX_DISABLED SANDBOX_LIB
 		SANDBOX_LOG SANDBOX_ON"