Move OSX package task into build script

This is to match how the other binaries are built. Also made some
changes to make the Docker containers clean up for when you are running
this locally.

.travis.yml

@@ -27,7 +27,6 @@ before_deploy:
 - git config --local user.name "$USER_NAME"
 - git config --local user.email "$USER_EMAIL"
 - git tag "$VERSION" "$TRAVIS_COMMIT"
-- if [[ “$TRAVIS_OS_NAME” == “osx” ]]; then yarn task package $VERSION; fi
 deploy:
   provider: releases
   file_glob: true

build/tasks.ts

@@ -21,6 +21,8 @@ const buildServerBinary = register("build:server:binary", async (runner) => {
 	logger.info("Building with environment", field("env", {
 		NODE_ENV: process.env.NODE_ENV,
 		VERSION: process.env.VERSION,
+		OSTYPE: process.env.OSTYPE,
+		TARGET: process.env.TARGET,
 	}));
 
 	await ensureInstalled();

scripts/build.sh

 #!/bin/bash
 set -euxo pipefail
 
-# Variables to be set:
-# $IMAGE
+# Build using a Docker container using the specified image and version.
 function docker_build() {
-	containerID=$(docker create -it -v $(pwd)/.cache:/src/.cache $IMAGE)
-	docker start $containerID
-	docker exec $containerID mkdir -p /src
+	local image="${1}" ; shift
+	local version="${1}" ; shift
 
-	function exec() {
-		docker exec $containerID bash -c "$@"
+	local containerId
+	containerId=$(docker create --network=host --rm -it -v "$(pwd)"/.cache:/src/.cache "${image}")
+	docker start "${containerId}"
+	docker exec "${containerId}" mkdir -p /src
+
+	function docker_exec() {
+		docker exec "${containerId}" bash -c "$@"
 	}
 
-	docker cp ./. $containerID:/src
-	exec "cd /src && yarn"
-	exec "cd /src && npm rebuild"
-	exec "cd /src && NODE_ENV=production VERSION=$VERSION yarn task build:server:binary"
-	exec "cd /src && yarn task package $VERSION"
-	docker cp $containerID:/src/release/. ./release/
+	docker cp ./. "${containerId}":/src
+	docker_exec "cd /src && yarn"
+	docker_exec "cd /src && npm rebuild"
+	docker_exec "cd /src && NODE_ENV=production VERSION=${version} yarn task build:server:binary"
+	docker_exec "cd /src && yarn task package ${version}"
+	docker cp "${containerId}":/src/release/. ./release/
+
+	docker stop "${containerId}"
 }
 
-if [[ "$OSTYPE" == "darwin"* ]]; then
-	NODE_ENV=production yarn task build:server:binary
-else
-	if [[ "$TARGET" == "alpine" ]]; then
-		IMAGE="codercom/nbin-alpine"
+function main() {
+	local version=${VERSION:-}
+	local ostype=${OSTYPE:-}
+
+	if [[ -z "${version}" ]] ; then
+		>&2 echo "Must set VERSION environment variable"
+		exit 1
+	fi
+
+	if [[ "${ostype}" == "darwin"* ]]; then
+		NODE_ENV=production VERSION="${version}" yarn task build:server:binary
+		yarn task package "${version}"
 	else
-		IMAGE="codercom/nbin-centos"
+		local image
+		if [[ "$TARGET" == "alpine" ]]; then
+			image="codercom/nbin-alpine"
+		else
+			image="codercom/nbin-centos"
+		fi
+		docker_build "${image}" "${version}"
 	fi
-	docker_build
-fi
+}
+
+main "$@"