Performance improvements: fix MCP server shutdown and disable caching

- Add proper shutdown handling for MCP servers
  - Listen for stdin EOF (main issue causing 6min delays)
  - Add transport.close() to properly close connections
  - Add 5-minute timeout safety net
  - Handle SIGHUP signal
- Disable Bun caching to avoid timeout errors
- Add Dockerfile.runner for pre-built container option
- Create optimized workflow example without container layer

Dockerfile.runner

@@ -0,0 +1,26 @@
+FROM node:18-slim
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    git \
+    curl \
+    unzip \
+    ca-certificates \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install Bun globally
+RUN curl -fsSL https://bun.sh/install | bash && \
+    ln -s /root/.bun/bin/bun /usr/local/bin/bun
+
+# Pre-install Claude Code and dependencies
+WORKDIR /opt/claude-action
+COPY package.json bun.lockb* ./
+RUN bun install --frozen-lockfile
+
+# Install claude-code globally
+RUN bun add -g @anthropic-ai/claude-code@1.0.62
+
+# Set up environment
+ENV PATH="/root/.bun/bin:${PATH}"
+
+WORKDIR /workspace

action.yml

@@ -84,6 +84,7 @@ runs:
       uses: oven-sh/setup-bun@735343b667d3e6f658f44d0eca948eb6282f2b76 # https://github.com/oven-sh/setup-bun/releases/tag/v2.0.2
       with:
         bun-version: 1.2.11
+        cache: false
 
     - name: Install Dependencies
       shell: bash

src/mcp/gitea-mcp-server.ts

@@ -1267,21 +1267,38 @@ async function runServer() {
   console.log(`[GITEA-MCP] Connecting to transport...`);
   await server.connect(transport);
   console.log(`[GITEA-MCP] Gitea MCP server connected and ready!`);
+  
+  // Handle server shutdown
+  const shutdown = async () => {
+    console.log(`[GITEA-MCP ${new Date().toISOString()}] Shutting down server...`);
+    try {
+      await server.close();
+      transport.close();
+    } catch (error) {
+      console.error(`[GITEA-MCP] Error during shutdown:`, error);
+    }
+    process.exit(0);
+  };
+  
   process.on("exit", () => {
-    console.log(`[GITEA-MCP ${new Date().toISOString()}] Server shutting down...`);
+    console.log(`[GITEA-MCP ${new Date().toISOString()}] Server exiting...`);
-    server.close();
   });
   
-  // Add more signal handlers for debugging
+  process.on("SIGTERM", shutdown);
-  process.on("SIGTERM", () => {
+  process.on("SIGINT", shutdown);
-    console.log(`[GITEA-MCP ${new Date().toISOString()}] Received SIGTERM signal`);
+  process.on("SIGHUP", shutdown);
-    process.exit(0);
+  
+  // Also listen for stdin close (EOF)
+  process.stdin.on("end", () => {
+    console.log(`[GITEA-MCP ${new Date().toISOString()}] Stdin closed, shutting down...`);
+    shutdown();
   });
   
-  process.on("SIGINT", () => {
+  // Add timeout safety net (5 minutes)
-    console.log(`[GITEA-MCP ${new Date().toISOString()}] Received SIGINT signal`);
+  setTimeout(() => {
-    process.exit(0);
+    console.log(`[GITEA-MCP ${new Date().toISOString()}] Timeout reached, forcing shutdown...`);
-  });
+    shutdown();
+  }, 5 * 60 * 1000);
 }
 
 console.log(`[GITEA-MCP] Calling runServer()...`);

src/mcp/local-git-ops-server.ts

@@ -496,21 +496,38 @@ async function runServer() {
   console.log(`[LOCAL-GIT-MCP] Connecting to transport...`);
   await server.connect(transport);
   console.log(`[LOCAL-GIT-MCP] MCP server connected and ready!`);
+  
+  // Handle server shutdown
+  const shutdown = async () => {
+    console.log(`[LOCAL-GIT-MCP ${new Date().toISOString()}] Shutting down server...`);
+    try {
+      await server.close();
+      transport.close();
+    } catch (error) {
+      console.error(`[LOCAL-GIT-MCP] Error during shutdown:`, error);
+    }
+    process.exit(0);
+  };
+  
   process.on("exit", () => {
-    console.log(`[LOCAL-GIT-MCP ${new Date().toISOString()}] Server shutting down...`);
+    console.log(`[LOCAL-GIT-MCP ${new Date().toISOString()}] Server exiting...`);
-    server.close();
   });
   
-  // Add more signal handlers for debugging
+  process.on("SIGTERM", shutdown);
-  process.on("SIGTERM", () => {
+  process.on("SIGINT", shutdown);
-    console.log(`[LOCAL-GIT-MCP ${new Date().toISOString()}] Received SIGTERM signal`);
+  process.on("SIGHUP", shutdown);
-    process.exit(0);
+  
+  // Also listen for stdin close (EOF)
+  process.stdin.on("end", () => {
+    console.log(`[LOCAL-GIT-MCP ${new Date().toISOString()}] Stdin closed, shutting down...`);
+    shutdown();
   });
   
-  process.on("SIGINT", () => {
+  // Add timeout safety net (5 minutes)
-    console.log(`[LOCAL-GIT-MCP ${new Date().toISOString()}] Received SIGINT signal`);
+  setTimeout(() => {
-    process.exit(0);
+    console.log(`[LOCAL-GIT-MCP ${new Date().toISOString()}] Timeout reached, forcing shutdown...`);
-  });
+    shutdown();
+  }, 5 * 60 * 1000);
 }
 
 console.log(`[LOCAL-GIT-MCP] Calling runServer()...`);