#!/bin/sh

set -e
source ./.versions

echo
echo "Installing Node.js $NODE_VERSION..."
echo

apk add --no-cache \
	libstdc++

apk add --no-cache --virtual .build-deps \
	binutils-gold \
	curl \
	g++ \
	gcc \
	gnupg \
	libgcc \
	linux-headers \
	make \
	python \
	xz

for key in \
	94AE36675C464D64BAFA68DD7434390BDBE9B9C5 \
	FD3A5288F042B6850C66B31F09FE44734EB7990E \
	71DCFD284A79C3B38668286BC97EC7A07EDE3FC1 \
	DD8F2338BAE7501E3DD5AC78C273792F7D83545D \
	C4F0DFFF4E8C1A8236409D08E73BC641CC11F4C8 \
	B9AE9905FFD7803F25714661B63B535A4C206CA9 \
	56730D5401028683275BD23C23EFEFE93C4CFFFE \
	77984A986EBC2AA786BC0F66B01FBB92821C587A \
	8FCCA13FEF1D0C2E91008E09770F7A9A5AE15600 \
; do
	gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ||
	gpg --keyserver hkp://ipv4.pool.sks-keyservers.net --recv-keys "$key" ||
	gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key"
done

curl -SLO "https://nodejs.org/dist/v$NODE_VERSION/node-v$NODE_VERSION.tar.xz"
curl -SLO --compressed "https://nodejs.org/dist/v$NODE_VERSION/SHASUMS256.txt.asc"

gpg --batch --decrypt --output SHASUMS256.txt SHASUMS256.txt.asc
grep " node-v$NODE_VERSION.tar.xz\$" SHASUMS256.txt | sha256sum -c -
tar -xf "node-v$NODE_VERSION.tar.xz"
cd "node-v$NODE_VERSION"
./configure
make -j$(getconf _NPROCESSORS_ONLN) >/dev/null || make
make install

apk del --no-cache .build-deps

cd ..
rm -Rf "node-v$NODE_VERSION"
rm "node-v$NODE_VERSION.tar.xz" SHASUMS256.txt.asc SHASUMS256.txt