chore: update CI workflow and Dockerfile for improved linting and deployment

Author: kentcdodds

.github/workflows/validate.yml

@@ -76,7 +76,10 @@ jobs:
         uses: superfly/flyctl-actions/setup-flyctl@1.5
 
       - name: 🚀 Deploy
-        run: flyctl deploy --remote-only
+        run:
+          flyctl deploy --remote-only --build-arg
+          EPICSHOP_GITHUB_REPO=https://github.com/${{ github.repository }}
+          --build-arg EPICSHOP_COMMIT_SHA=${{ github.sha }}
         working-directory: ./epicshop
         env:
           FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}

epicshop/Dockerfile

@@ -2,7 +2,10 @@ FROM node:24-bookworm-slim as base
 
 RUN apt-get update && apt-get install -y git
 
-ENV EPICSHOP_GITHUB_REPO=https://github.com/epicweb-dev/advanced-mcp-features
+# Build argument for GitHub repo URL
+ARG EPICSHOP_GITHUB_REPO
+ENV EPICSHOP_GITHUB_REPO=${EPICSHOP_GITHUB_REPO}
+
 ENV EPICSHOP_CONTEXT_CWD="/myapp/workshop-content"
 ENV EPICSHOP_HOME_DIR="/myapp/.epicshop"
 ENV EPICSHOP_DEPLOYED="true"
@@ -11,10 +14,19 @@ ENV FLY="true"
 ENV PORT="8080"
 ENV NODE_ENV="production"
 
+# Build argument for commit SHA to bust cache when repo changes
+ARG EPICSHOP_COMMIT_SHA
+ENV EPICSHOP_COMMIT_SHA=${EPICSHOP_COMMIT_SHA}
+
 WORKDIR /myapp
 
 # Clone the workshop repo during build time, excluding database files
-RUN git clone --depth 1 ${EPICSHOP_GITHUB_REPO} ${EPICSHOP_CONTEXT_CWD}
+# Clone specific commit to keep image small while ensuring cache busting
+RUN git init ${EPICSHOP_CONTEXT_CWD} && \
+    cd ${EPICSHOP_CONTEXT_CWD} && \
+    git remote add origin ${EPICSHOP_GITHUB_REPO} && \
+    git fetch --depth 1 origin ${EPICSHOP_COMMIT_SHA} && \
+    git checkout ${EPICSHOP_COMMIT_SHA}
 
 ADD . .