move main project files into standard gradle/Android Studio layout

This makes it a lot easier to setup all the testing stuff.  Mostly,
I'm tired of fighting Android Studio's fragility, so I want to remove
as much non-standardness as possible in the hopes of improving that
situation.

closes #534 https://gitlab.com/fdroid/fdroidclient/issues/534

.gitlab-ci.yml

@@ -10,14 +10,14 @@ gradle:
     - export GRADLE_USER_HOME=$PWD/.gradle
     - ./gradlew assemble
     # always report on lint errors to the build log
-    - sed -i -e 's,textReport .*,textReport true,' F-Droid/build.gradle
+    - sed -i -e 's,textReport .*,textReport true,' app/build.gradle
     - ./gradlew check
     - echo no | android create avd --force -n fcl-test -t android-10 -b armeabi
     - emulator -force-32bit -avd fcl-test -no-skin -no-audio -no-window &
     - ./tools/wait-for-emulator
     - adb shell input keyevent 82
     - ADB_INSTALL_TIMEOUT=8 ./gradlew connectedCheck || { adb logcat -d '*:W'; exit 1; }
-    - sed -n 's/.*"ctr2">\([0-9]*\)%<.*/Coverage - \1.0% covered\n/p' F-Droid/build/reports/coverage/debug/index.html
+    - sed -n 's/.*"ctr2">\([0-9]*\)%<.*/Coverage - \1.0% covered\n/p' app/build/reports/coverage/debug/index.html
 
 pmd:
   script:
@@ -31,6 +31,6 @@ checkstyle:
 
 tools:
   script:
-    - cd F-Droid
+    - cd app
     - ./tools/langs-list-check.py
     - ./tools/check-string-format.py

Android.mk

@@ -7,7 +7,7 @@ LOCAL_MODULE_TAGS := optional
 LOCAL_PACKAGE_NAME := F-Droid
 
 fdroid_root  := $(LOCAL_PATH)
-fdroid_dir   := F-Droid
+fdroid_dir   := app
 fdroid_out   := $(PWD)/$(OUT_DIR)/target/common/obj/APPS/$(LOCAL_MODULE)_intermediates
 fdroid_build := $(fdroid_root)/$(fdroid_dir)/build
 fdroid_apk   := build/outputs/apk/F-Droid-release-unsigned.apk

README.md

@@ -7,8 +7,7 @@ for Android.
 
 ## Building with Gradle
 
-    cd F-Droid
-    ../gradlew assembleRelease
+    ./gradlew assembleRelease
 
 ## Direct download
 

app/build.gradle

@@ -123,29 +123,6 @@ android {
     buildToolsVersion '23.0.2'
     useLibrary 'org.apache.http.legacy'
 
-    sourceSets {
-        main {
-            manifest.srcFile 'AndroidManifest.xml'
-            java.srcDirs = ['src']
-            resources.srcDirs = ['src']
-            aidl.srcDirs = ['src']
-            renderscript.srcDirs = ['src']
-            res.srcDirs = ['res']
-            assets.srcDirs = ['assets']
-        }
-
-        androidTest.setRoot('test')
-        androidTest {
-            manifest.srcFile 'test/AndroidManifest.xml'
-            java.srcDirs = ['test/src']
-            resources.srcDirs = ['test/src']
-            aidl.srcDirs = ['test/src']
-            renderscript.srcDirs = ['test/src']
-            res.srcDirs = ['test/res']
-            assets.srcDirs = ['test/assets']
-        }
-    }
-
     buildTypes {
         // use proguard on debug too since we have unknowingly broken
         // release builds before.