Honor SDE in Dockerfile for the repro group

Antiz96 · Antiz96 · commit 9a4c205f52d9 · 2026-03-30T23:01:08.000+02:00
diff --git a/Makefile b/Makefile
@@ -14,7 +14,7 @@ $(OUTPUTDIR)/%.tar.zst:
 
 .PRECIOUS: $(OUTPUTDIR)/Dockerfile.%
 $(OUTPUTDIR)/Dockerfile.%: $(OUTPUTDIR)/%.tar.zst
-	scripts/make-dockerfile.sh "$(*).tar.zst" $(*) $(OUTPUTDIR) "true" "Dev"
+	scripts/make-dockerfile.sh "$(*).tar.zst" $(*) $(OUTPUTDIR) "true" "Dev" $(SOURCE_DATE_EPOCH)
 
 # The following is for local builds only, it is not used by the CI/CD pipeline
 
diff --git a/scripts/make-dockerfile.sh b/scripts/make-dockerfile.sh
@@ -7,16 +7,24 @@ declare -r GROUP="$2"
 declare -r OUTPUTDIR="$3"
 declare -r DOWNLOAD="$4"
 declare -r TITLE="$5"
+declare -rx SOURCE_DATE_EPOCH="$6"
 
 # Do not use these directly in the sed below - it will mask git failures
 BUILD_VERSION="${BUILD_VERSION:-dev}"
 CI_COMMIT_SHA="${CI_COMMIT_SHA:-$(git rev-parse HEAD)}"
 
+# Honor SOURCE_DATE_EPOCH for the repro GROUP
+if [ "$GROUP" = "repro" ]; then
+    CREATED_TIMESTAMP=$(date -u -d "@$SOURCE_DATE_EPOCH" +%Y-%m-%dT%H:%M:%SZ)
+else
+    CREATED_TIMESTAMP=$(date -Is)
+fi
+
 sed -e "s|TEMPLATE_ROOTFS_FILE|$ROOTFS_FILE|" \
     -e "s|TEMPLATE_ROOTFS_DOWNLOAD|$DOWNLOAD|" \
     -e "s|TEMPLATE_ROOTFS_HASH|$(cat $OUTPUTDIR/$ROOTFS_FILE.SHA256)|" \
     -e "s|TEMPLATE_TITLE|Arch Linux $TITLE Image|" \
     -e "s|TEMPLATE_VERSION_ID|$BUILD_VERSION|" \
     -e "s|TEMPLATE_REVISION|$CI_COMMIT_SHA|" \
-    -e "s|TEMPLATE_CREATED|$(date -Is)|" \
+    -e "s|TEMPLATE_CREATED|$CREATED_TIMESTAMP|" \
     Dockerfile.template > "$OUTPUTDIR/Dockerfile.$GROUP"
