Add build CI

.gitlab-ci.yml

@@ -0,0 +1,19 @@
+default:
+  image: "docker.io/abb128/android-build:latest@sha256:8df16e2badb5e42d2f5e3862683c7ff0ebdcc348affe059385e42eebef79302f"
+
+stages:          # List of stages for jobs, and their order of execution
+  - build
+
+build:
+  stage: build
+  tags:
+    - docker
+  script:
+    - ./setUpKeysCI.sh
+    - gradle assembleRelease -s
+    - mv build/outputs/apk/release/LatinIME-release.apk ./LatinIME-release-$CI_COMMIT_SHORT_SHA.apk
+  artifacts:
+    name: "LatinIME-release-$CI_COMMIT_SHORT_SHA"
+    paths: 
+      - ./*.apk
+  when: manual

build.gradle

@@ -33,8 +33,6 @@ android {
         testApplicationId 'org.futo.inputmethod.latin.tests'
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables.useSupportLibrary = false
-
-        signingConfig signingConfigs.debug
     }
 
     signingConfigs {
@@ -43,12 +41,29 @@ android {
         }
     }
 
+    final def keystorePropertiesFile = rootProject.file("keystore.properties")
+    def releaseSigning = signingConfigs.debug
+    if (keystorePropertiesFile.exists()) {
+        final def keystoreProperties = new Properties()
+        keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
+        releaseSigning = signingConfigs.create("release") {
+            keyAlias keystoreProperties['keyAlias']
+            keyPassword keystoreProperties['keyPassword']
+            storeFile rootProject.file(keystoreProperties['storeFile'])
+            storePassword keystoreProperties['storePassword']
+        }
+    } else {
+    	project.logger.lifecycle('keystore.properties not found, APK may not be signed')
+    }
+
     buildTypes {
         debug {
             minifyEnabled false
+            signingConfig signingConfigs.debug
         }
         release {
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard.flags'
+            signingConfig releaseSigning
         }
     }
 

setUpKeysCI.sh

@@ -0,0 +1,6 @@
+#!/bin/sh
+echo ${KEYSTORE_FILE?Need keystore file} | base64 --decode > key.jks
+echo storePassword=${KEYSTORE_PASSWORD?Need keystore password} > keystore.properties
+echo keyPassword=${KEY_PASSWORD?Need key password} >> keystore.properties
+echo keyAlias=${KEYSTORE_ALIAS?Need key alias} >> keystore.properties
+echo storeFile=key.jks >> keystore.properties