enable indexing with GoLand in prebuilds

Author: akosyakov

Diff for: .gitpod.yml

@@ -47,6 +47,8 @@ tasks:
     before: pre-commit install --install-hooks
     init: leeway exec --filter-type go -v -- go mod verify
     openMode: split-right
+  - name: GoLand indexing
+    init: ./scripts/goland-indexing.sh
 vscode:
   extensions:
     - bradlc.vscode-tailwindcss

Diff for: scripts/goland-indexing.sh

@@ -0,0 +1,24 @@
+#!/bin/sh
+
+# skip indexing in regular workspaces
+if [ ! "$GITPOD_HEADLESS" = "true" ] ; then exit ; fi
+
+# resolve JetBrains backend version running by Gitpod
+curl https://raw.githubusercontent.com/gitpod-io/gitpod/main/WORKSPACE.yaml > /tmp/gitpod_workspace.yaml
+sudo wget -qO /usr/local/bin/yq https://github.com/mikefarah/yq/releases/latest/download/yq_linux_amd64
+sudo chmod a+x /usr/local/bin/yq
+JB_BACKEND_DOWNLOAD_URL=$(yq eval '.defaultArgs.golandDownloadUrl' /tmp/gitpod_workspace.yaml)
+echo "$JB_BACKEND_DOWNLOAD_URL"
+
+# download JB backend
+mkdir /tmp/backend && cd /tmp/backend || exit 1
+curl -sSLo backend.tar.gz "$JB_BACKEND_DOWNLOAD_URL" && tar -xf backend.tar.gz --strip-components=1 && rm backend.tar.gz
+
+# config JB system config and caches aligned with runtime
+printf '\nshared.indexes.download.auto.consent=true' >> "/tmp/backend/bin/idea.properties"
+unset JAVA_TOOL_OPTIONS
+export IJ_HOST_CONFIG_BASE_DIR=/workspace/.config/JetBrains
+export IJ_HOST_SYSTEM_BASE_DIR=/workspace/.cache/JetBrains
+
+# start JB backend in indexing mode
+/tmp/backend/bin/remote-dev-server.sh warmup "$GITPOD_REPO_ROOT"