From 2a8ed34b4ba2b90c7788fe50aa72babdd1c749fa Mon Sep 17 00:00:00 2001
From: Benno Rice <benno.rice@oracle.com>
Date: Fri, 24 Sep 2021 12:04:41 +1000
Subject: [PATCH] compose: pass SOURCE_DATE_EPOCH into bubblewrap environments

This allows for internally executed processes to be stable around
things like build timestamps, assuming they support it.
---
 rust/src/bwrap.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/rust/src/bwrap.rs b/rust/src/bwrap.rs
index fdd7ac7fa4..441b41ef08 100644
--- a/rust/src/bwrap.rs
+++ b/rust/src/bwrap.rs
@@ -175,6 +175,10 @@ impl Bubblewrap {
         let path_var = Path::new(PATH_VAR);
         launcher.set_environ(&[lang_var, path_var]);
 
+        if let Ok(source_date_epoch) = std::env::var("SOURCE_DATE_EPOCH") {
+            launcher.setenv("SOURCE_DATE_EPOCH", source_date_epoch, true);
+        }
+
         // ⚠⚠⚠ If you change this, also update scripts/bwrap-script-shell.sh ⚠⚠⚠
         let mut argv = vec![
             "bwrap",