add build.sh file and a workflow to make a reproducible build

Signed-off-by: nitesh <[email protected]>

.github/workflows/reproducible_build.yml

@@ -0,0 +1,20 @@
+name: Build Android
+on:
+  push:
+    branches:
+      - reproducible-builds-2
+
+jobs:
+  build-android:
+    runs-on: ubuntu-latest
+    container: reactnativecommunity/react-native-android@sha256:4ff9c9f80da57c72284900fcfdbd079183e735684c62d7fafd3df50fdb895453
+    steps:
+      - uses: actions/checkout@v4
+      - name: Envinfo
+        run: npx envinfo
+      - name: Install dependencies
+        run: |
+          apt-get update
+          apt-get install -y curl unzip
+      - name: Build application
+        run: chmod +x build.sh && ./build.sh

build.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+# reactnativecommunity/react-native-android:13.0
+BUILDER_IMAGE="reactnativecommunity/react-native-android@sha256:4ff9c9f80da57c72284900fcfdbd079183e735684c62d7fafd3df50fdb895453"
+CONTAINER_NAME="blixt_builder_container"
+BLIXT_PATH=/blixt
+
+docker run --rm -it --name $CONTAINER_NAME -v `pwd`:$BLIXT_PATH $BUILDER_IMAGE bash -c \
+     'echo -e "\n\n********************************\n*** Building Blixt...\n********************************\n" && \
+      cd /blixt ; yarn build-unsigned-android
+
+      echo -e "\n\n********************************\n**** APKs and SHA256 Hashes\n********************************\n" && \
+      cd /blixt && \
+      for f in android/app/build/outputs/apk/release/*.apk;
+      do
+	      RENAMED_FILENAME=$(echo $f | sed -e "s/app-/blixt-/" | sed -e "s/-release-unsigned//")
+	      mv $f $RENAMED_FILENAME
+	      sha256sum $RENAMED_FILENAME
+      done && \
+      echo -e "\n" ';