new package: dart

Requested in https://github.com/termux/termux-packages/issues/3539.

packages/dart/build.sh

@@ -0,0 +1,72 @@
+TERMUX_PKG_HOMEPAGE=https://www.dartlang.org/
+TERMUX_PKG_DESCRIPTION="Dart is a general-purpose programming language."
+TERMUX_PKG_LICENSE="BSD"
+TERMUX_PKG_VERSION=2.2.0
+TERMUX_PKG_BUILD_DEPENDS="python, python2"
+TERMUX_PKG_SKIP_SRC_EXTRACT=1
+TERMUX_PKG_BUILD_IN_SRC=yes
+DART_MAKE_PLATFORM_SDK=true
+
+termux_step_extract_package() {
+	mkdir -p $TERMUX_PKG_SRCDIR
+	cd $TERMUX_PKG_SRCDIR
+
+	git clone --depth=1 https://chromium.googlesource.com/chromium/tools/depot_tools.git
+	export PATH="$(pwd)/depot_tools:${PATH}"
+
+	fetch dart
+
+	cd sdk
+	git checkout $TERMUX_PKG_VERSION
+	cd ../
+
+	echo "target_os = ['android']" >> .gclient
+	gclient sync -D --force --reset
+}
+
+termux_step_make() {
+	cd sdk
+
+	local DEST_CPU
+	if [ $TERMUX_ARCH = "arm" ]; then
+		DEST_CPU="arm"
+	elif [ $TERMUX_ARCH = "i686" ]; then
+		DEST_CPU="ia32"
+	elif [ $TERMUX_ARCH = "aarch64" ]; then
+		DEST_CPU="arm64"
+	elif [ $TERMUX_ARCH = "x86_64" ]; then
+		DEST_CPU="x64"
+	else
+		termux_error_exit "Unsupported arch '$TERMUX_ARCH'"
+	fi
+
+	rm -f ./out/*/args.gn
+	python2 ./tools/build.py --mode release --arch=$DEST_CPU --os=android create_sdk
+}
+
+termux_step_make_install() {
+	cd sdk
+
+	local DEST_CPU
+	if [ $TERMUX_ARCH = "arm" ]; then
+		DEST_CPU="ARM"
+	elif [ $TERMUX_ARCH = "i686" ]; then
+		DEST_CPU="IA32"
+	elif [ $TERMUX_ARCH = "aarch64" ]; then
+		DEST_CPU="ARM64"
+	elif [ $TERMUX_ARCH = "x86_64" ]; then
+		DEST_CPU="X64"
+	else
+		termux_error_exit "Unsupported arch '$TERMUX_ARCH'"
+	fi
+
+	chmod +x ./out/ReleaseAndroid${DEST_CPU}/dart-sdk/bin/*
+	cp -r ./out/ReleaseAndroid${DEST_CPU}/dart-sdk ${TERMUX_PREFIX}/lib
+
+	for file in ${TERMUX_PREFIX}/lib/dart-sdk/bin/*; do
+		if [[ -f "$file" ]]; then
+			echo -e "#!${TERMUX_PREFIX}/bin/sh\nexec $file  \"\$@\"" > ${TERMUX_PREFIX}/bin/$(basename $file)
+			chmod +x ${TERMUX_PREFIX}/bin/$(basename $file)
+		fi
+	done
+}