Rewrite package scripts to produce deterministic zip files

extension/package.json

@@ -5,10 +5,9 @@
     "scripts": {
         "buildDev": "NODE_OPTIONS=--openssl-legacy-provider webpack --config webpack.config.js --mode development",
         "buildProd": "yarn workspace root run verify && NODE_OPTIONS=--openssl-legacy-provider webpack --config webpack.config.js --mode production",
-        "package": "cd dist/$PLATFORM && zip -r ../asbplayer-extension-$(jq -r .version manifest.json)-$PLATFORM.zip * && cd ../..",
-        "packageDev": "yarn buildDev && PLATFORM=chromium yarn package",
-        "packageProd": "yarn buildProd && PLATFORM=chromium yarn package",
-        "packageProdFirefox": "yarn buildProd --env firefox && PLATFORM=firefox yarn package"
+        "packageDev": "yarn buildDev && ../scripts/package chromium",
+        "packageProd": "yarn buildProd && ../scripts/package chromium",
+        "packageProdFirefox": "yarn buildProd --env firefox && ../scripts/package firefox"
     },
     "dependencies": {
         "@fontsource/roboto": "^4.5.0",

scripts/package

@@ -0,0 +1,32 @@
+#!/bin/bash
+
+set -e
+
+usage() {
+    echo "usage: $0 {chromium,firefox,firefoxandroid}"
+}
+
+if [[ -z "$1" ]]; then
+    usage
+    exit 1
+fi
+
+PLATFORM=$1
+SCRIPTPATH="$(cd -- "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P)"
+DISTPATH=$SCRIPTPATH/../extension/dist
+
+pushd $DISTPATH
+
+NAME="asbplayer-extension-$(jq -r .version $PLATFORM/manifest.json)-$PLATFORM.zip"
+
+# Remove old zip file
+rm -f $NAME
+
+# Force file timestamps to constant so that final zip is deterministic
+find $PLATFORM -mindepth 1 | xargs touch -ad "1970-01-01T00:00:00"
+find $PLATFORM -mindepth 1 | xargs touch -md "1970-01-01T00:00:00"
+
+# Zip everything up
+find $PLATFORM -mindepth 1 | xargs zip -X $NAME $PLATFORM/*
+
+popd