Create a script to auto build for Android and show checksums

.gitignore

@@ -49,3 +49,4 @@ app.*.map.json
 libisar.so
 android/app/build.gradle
 android/app/src/main/AndroidManifest.xml
+sha1sums.txt

build-android.sh

@@ -0,0 +1,47 @@
+#!/usr/bin/env bash
+
+# Check if file exists
+if [ -f "sha1sums.txt" ]; then
+    rm sha1sums.txt
+fi
+touch sha1sums.txt
+
+# Build debug version
+flutter build apk --debug
+flutter build apk --debug --split-per-abi
+
+# Get the SHA1 Checksums of the APKs and save them to a file with the following format: 
+# <code>filename</code>: <code>checksum</code>
+declare -a fileName=( $(find build/app/outputs/flutter-apk -type f -name "*.apk") )
+declare -a fileChecksum
+
+# Build debug AAB version
+flutter build appbundle --debug
+fileName=$(find build/app/outputs/bundle/debug/ -type f -name "*.aab")
+fileChecksum=$(sha1sum "$fileName" | awk '{print $1}')
+fileName=${fileName##*/}
+fileName=${fileName/app-/JellyBook-}
+echo "<code>$fileName</code>: <code>$fileChecksum</code>" | tee -a sha1sums.txt
+
+# Build release version
+flutter build apk --release
+flutter build apk --release --split-per-abi
+
+declare -a fileName=( $(find build/app/outputs/flutter-apk/ -type f -name "*.apk") )
+declare -a fileChecksum
+
+for file in "${fileName[@]}"; do
+  checksum=$(sha1sum "$file" | awk '{print $1}')
+  fileChecksum+=("$checksum")
+  file=${file##*/}
+  file=${file/app-/JellyBook-}
+  echo "<code>$file</code>: <code>$checksum</code>" | tee -a sha1sums.txt
+done
+
+# Build release AAB version
+flutter build appbundle --release
+fileName=$(find build/app/outputs/bundle/release/ -type f -name "*.aab")
+fileChecksum=$(sha1sum "$fileName" | awk '{print $1}')
+fileName=${fileName##*/}
+fileName=${fileName/app-/JellyBook-}
+echo "<code>$fileName</code>: <code>$fileChecksum</code>" | tee -a sha1sums.txt