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#!/usr/bin/env bash
set -e
unset ANDROID_SDK BUILD_TOOLS BUILD_TOOLS_VER JAVAC KEYSTORE KEYSTORE_ARGS \
KEYSTORE_PASS KOTLINC MANIFEST MAVEN_REPO MIN_SDK_VER PLATFORM \
TARGET_SDK_VER verbose
MANIFEST=AndroidManifest.xml
redo-ifchange "$MANIFEST"
MIN_SDK_VER=$(xmllint --xpath "string(/manifest/uses-sdk/@*[local-name()='minSdkVersion'])" "$MANIFEST")
TARGET_SDK_VER=$(xmllint --xpath "string(/manifest/uses-sdk/@*[local-name()='targetSdkVersion'])" "$MANIFEST")
BUILD_TOOLS_VER=33.0.2
APKSIGNER_SIGN_ARGS=()
D8_ARGS=(--min-api "$MIN_SDK_VER")
declare -A MAVEN_REPO
MAVEN_REPO[central]=https://repo1.maven.org/maven2
MAVEN_REPO[google]=https://dl.google.com/dl/android/maven2
if [ -e config.rc ]; then
redo-ifchange config.rc
. ./config.rc
else
redo-ifcreate config.rc
fi
if [[ ! ( $BUILD_TOOLS || $PLATFORM ) && ! $ANDROID_SDK ]]; then
cat <<-"EOF" >&2
$BUILD_TOOLS or $PLATFORM unset without setting $ANDROID_SDK.
Either set both $BUILD_TOOLS and $PLATFORM or set $ANDROID_SDK.
EOF
exit 1
fi
BUILD_TOOLS=${BUILD_TOOLS-$ANDROID_SDK/build-tools/$BUILD_TOOLS_VER}
PLATFORM=${PLATFORM-$ANDROID_SDK/platforms/android-$TARGET_SDK_VER}
KEYSTORE=${KEYSTORE-$HOME/.android/debug.keystore}
KEYSTORE_PASS=${KEYSTORE_PASS-pass:android}
check() {
what=$1
shift
for p do
if command -v "$p" >/dev/null 2>&1; then
command -v "$p"
return
fi
done
echo "$what not set or found" >&2
return 1
}
JAVAC=$(check '$JAVAC or javac' "$JAVAC" javac) || exit
KOTLINC=$(check '$KOTLINC or kotlinc' "$KOTLINC" kotlinc) || exit
{
d8() (
set -e
android=$PLATFORM/android.jar d8_jar=$BUILD_TOOLS/lib/d8.jar
dest=$1
shift
redo-ifchange "$d8_jar" "$android"
tmp=$(mktemp -d)
trap 'rm -rf "$tmp"' EXIT
java -Xmx2G -cp "$d8_jar" com.android.tools.r8.D8 "${D8_ARGS[@]}" \
--classpath "$android" --output "$tmp" "$@"
mv "$tmp/classes.dex" "$dest"
)
printf "# generated by %s\n" "$0"
declare -p APKSIGNER_SIGN_ARGS BUILD_TOOLS D8_ARGS JAVAC KEYSTORE \
KEYSTORE_PASS KOTLINC MANIFEST MAVEN_REPO PLATFORM
declare -fp d8
} >"$3"
if [[ $verbose ]]; then
echo "# Configuration regenerated:" >&2
cat "$3" >&2
fi
# vim:ft=bash
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