termux-packages/packages/apksigner/build.sh

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TERMUX_PKG_HOMEPAGE=https://developer.android.com/studio/command-line/apksigner
TERMUX_PKG_DESCRIPTION="APK signing tool"
TERMUX_PKG_LICENSE="Apache-2.0, GPL-2.0"
TERMUX_PKG_VERSION=${TERMUX_ANDROID_BUILD_TOOLS_VERSION}
TERMUX_PKG_REVISION=5
TERMUX_PKG_BUILD_IN_SRC=true
TERMUX_PKG_PLATFORM_INDEPENDENT=true
TERMUX_PKG_SKIP_SRC_EXTRACT=true
termux_step_get_source() {
mkdir -p "$TERMUX_PKG_SRCDIR" && cd "$TERMUX_PKG_SRCDIR"
mkdir -p com/android/apksig/internal/asn1
termux_download \
"https://android.googlesource.com/platform/tools/apksig/+/refs/tags/platform-tools-$TERMUX_PKG_VERSION/src/main/java/com/android/apksig/internal/asn1/Asn1BerParser.java?format=TEXT" \
com/android/apksig/internal/asn1/Asn1BerParser_b64.java \
f0506dedb7291dce1066b7aec3fc42c70b1862b39d9cdb176ba75d24b870765e
base64 -d com/android/apksig/internal/asn1/Asn1BerParser_b64.java > com/android/apksig/internal/asn1/Asn1BerParser.java
}
termux_step_pre_configure() {
# Requires Android SDK, not available on device
if $TERMUX_ON_DEVICE_BUILD; then
termux_error_exit "Package '$TERMUX_PKG_NAME' is not safe for on-device builds."
fi
}
termux_step_make() {
mkdir -p $TERMUX_PREFIX/share/dex
cp $ANDROID_HOME/build-tools/${TERMUX_PKG_VERSION}/lib/apksigner.jar "$TERMUX_PKG_SRCDIR"
SOURCEFILE="$TERMUX_PKG_SRCDIR/apksigner.jar"
cd "$TERMUX_PKG_SRCDIR"
# java.util.Base64 is available only on Android 8 and higher.
# Provide a class copied from OpenJDK, so apksigner will work
# on Android 7.
mkdir -p java/util
cp $TERMUX_PKG_BUILDER_DIR/Base64.java java/util/
javac java/util/Base64.java
javac -cp "$SOURCEFILE" com/android/apksig/internal/asn1/Asn1BerParser.java
zip -u "$SOURCEFILE" 'java/util/Base64.class'
zip -u "$SOURCEFILE" 'java/util/Base64$1.class'
zip -u "$SOURCEFILE" 'java/util/Base64$DecInputStream.class'
zip -u "$SOURCEFILE" 'java/util/Base64$Decoder.class'
zip -u "$SOURCEFILE" 'java/util/Base64$Encoder.class'
zip -u "$SOURCEFILE" 'java/util/Base64$EncOutputStream.class'
zip -u "$SOURCEFILE" com/android/apksig/internal/asn1/Asn1BerParser.class
$TERMUX_D8 \
--classpath $ANDROID_HOME/platforms/android-$TERMUX_PKG_API_LEVEL/android.jar \
--release \
--min-api $TERMUX_PKG_API_LEVEL \
--output $TERMUX_PKG_TMPDIR \
$SOURCEFILE
}
termux_step_make_install() {
cd $TERMUX_PKG_TMPDIR
unzip $SOURCEFILE */*.txt
jar cf apksigner.jar classes.dex com/
mv apksigner.jar $TERMUX_PREFIX/share/dex/apksigner.jar
echo '#!/bin/sh' > $TERMUX_PREFIX/bin/apksigner
echo "dalvikvm -Xcompiler-option --compiler-filter=speed -cp $TERMUX_PREFIX/share/dex/apksigner.jar com.android.apksigner.ApkSignerTool \$@" >> $TERMUX_PREFIX/bin/apksigner
chmod +x $TERMUX_PREFIX/bin/apksigner
}
termux_step_create_debscripts() {
cat <<- EOF > ./postinst
#!${TERMUX_PREFIX}/bin/bash
rm -f $TERMUX_PREFIX/share/dex/oat/*/apksigner.{art,oat,odex,vdex} >/dev/null 2>&1
exit 0
EOF
}