Correct plugin auto-installation from custom server

Author: benesch

.gitignore

@@ -3,3 +3,4 @@ sdk
 __pycache__
 venv
 node_modules
+package-lock.json

Makefile

@@ -12,7 +12,7 @@ sdk: bin/pulumi-sdkgen-docker-buildkit
 	cd sdk/nodejs/ && \
 		npm install && \
 		npm run build && \
-		sed -e "s/\$${VERSION}/$(VERSION)/g" package.json > bin/package.json
+		awk -f ../../build/munge-package-json.awk -v version=$(VERSION) package.json > bin/package.json
 	mv sdk/nodejs sdk/nodejs.tmp
 	mv sdk/nodejs.tmp/bin sdk/nodejs
 	rm -r sdk/nodejs.tmp

build/munge-package-json.awk

@@ -0,0 +1,11 @@
+/"pulumi"/ {
+	print;
+	print "        \"name\": \"docker-buildkit\",";
+	next;
+}
+
+{
+	gsub("\\${VERSION}", version);
+	gsub("pluginDownloadURL", "server");
+	print;
+}