space-android/scripts/buildDev

#!/bin/bash
date=$(date +%Y%m%d)
oldLibraryCommit=$(grep "androidLibraryVersion\ =" build.gradle)
libraryCommit=$(curl https://api.github.com/repos/nextcloud/android-library/commits/master | jq .sha | sed s'/\"//g')

# use current date for version code/name
sed -i "/versionDev/,/\}/ s/versionCode .*/versionCode $date/" app/build.gradle
sed -i "/versionDev/,/\}/ s/versionName .*/versionName \"$date\"/" app/build.gradle

# change library
sed -i s"#androidLibraryVersion\ =.*#androidLibraryVersion =\"$libraryCommit\"#" build.gradle

# build signed apk
source ndk.env
yes | sdkmanager --licenses

if [ ! -e ~/android-sdk/ndk/${NDK_VERSION} ]; then
    sdkmanager "ndk;${NDK_VERSION}"
fi

if [ ! -e ~/android-sdk/cmake/${CMAKE_VERSION} ]; then
    sdkmanager "cmake;${CMAKE_VERSION}"
fi

./gradlew assembleVersionDevRelease >> /tmp/dev.log 2>&1

if [ $? != 0 ] ; then
	echo "Build error!"
	exit 1
fi

# sign
mkdir -p ~/apks

source ~/.gradle/devVersionSecrets
apksigner sign --ks-pass env:VERSION_DEV_STORE_PASSWORD \
               --key-pass env:VERSION_DEV_KEY_PASSWORD \
               --ks $VERSION_DEV_STORE_FILE \
               --out ~/apks/nextcloud-dev-$date.apk \
               ./app/build/outputs/apk/versionDev/release/versionDev-release-$date.apk

# use the current date
echo $date > ~/apks/latest

ln -s nextcloud-dev-$date.apk latest.apk
mv latest.apk ~/apks/

# remove all but the latest 5 apks
/bin/ls -t ~/apks/*.apk | awk 'NR>6' | xargs rm -f

lastBuildTag=$(git tag | grep dev | tail -n1)
# Show only the commit subject in the changelog and filter out:
#  * Merges
#  * Dependabot commits
#  * Commits touching only non-user-facing stuff like tests
#  * Version bump commits
#  * Anything reachable from the previous dev edition tag
changelog=$(git log --no-merges --invert-grep --author=dependabot --pretty='format:%s' HEAD "^$lastBuildTag" -- ':!app/src/androidTest' ':!.*' ':!scripts/' ':!screenshots' ':!CHANGELOG.md' | grep -vE '^daily dev [[:digit:]]{8}$')
# Make Transifex updates have a nicer description
if echo "$changelog" | grep -q 'tx-robot'; then
	changelog=$(echo "$changelog" | grep -v 'tx-robot')
	# This is a funky bashism - preceding a single-quote string with $ lets you put escape chars in it
	changelog="${changelog}"$'\nUpdate translations'
fi

# Check if the library was updated
if ! echo $oldLibraryCommit | grep -q $libraryCommit; then
	changelog="${changelog}"$'\nUpdate Nextcloud Android library'
fi

# Collapse dependency updates into a single "Update dependencies" entry
if git log --pretty='format:%an' HEAD "^$lastBuildTag" | grep -q dependabot; then
	changelog="${changelog}"$'\nUpdate 3rd-party dependencies'
fi

# changelog
echo "$changelog" > src/versionDev/fastlane/metadata/android/en-US/changelogs/$date.txt

git add .
git commit -m "daily dev $date" -m "$changelog"
git push

git tag dev-$date
git push origin dev-$date