Merge pull request #39 from codacy/mcp-server-setup-CY-7423

feature: Setup codacy MCP server CY-7423

Author: inesgomas

package.json

@@ -39,6 +39,13 @@
           "icon": "resources/icons/codacy-logo.svg",
           "when": "Codacy:RepositoryManagerStateContext == NeedsAuthentication"
         },
+        {
+          "id": "codacy:mcp",
+          "name": "Codacy MCP Server",
+          "when": "Codacy:RepositoryManagerStateContext != NeedsAuthentication && codacy:isCursor",
+          "icon": "$(gear)",
+          "initialSize": 2
+        },
         {
           "id": "codacy:prSummary",
           "name": "Pull request",
@@ -75,6 +82,16 @@
         "contents": "You have not yet signed in with Codacy\n[Sign in](command:codacy.signIn)",
         "when": "Codacy:RepositoryManagerStateContext == NeedsAuthentication"
       },
+      {
+        "view": "codacy:mcp",
+        "contents": "Enable your Cursor AI Chat to talk to Codacy's Cloud API \n[Add Codacy MCP Server](command:codacy.configureMCP)",
+        "when": "Codacy:RepositoryManagerStateContext != NeedsAuthentication && codacy:isCursor && !codacy:mcpConfigured"
+      },
+      {
+        "view": "codacy:mcp",
+        "contents": "MCP Server is enabled\n[Reset MCP Server](command:codacy.configureMCP.reset)",
+        "when": "Codacy:RepositoryManagerStateContext != NeedsAuthentication && codacy:isCursor && codacy:mcpConfigured"
+      },
       {
         "view": "codacy:statuses",
         "contents": "No repositories open.",
@@ -171,6 +188,26 @@
         "command": "codacy.issue.seeDetails",
         "title": "See issue details",
         "category": "Codacy commands"
+      },
+      {
+        "command": "codacy.configureMCP",
+        "title": "Configure Codacy MCP Server",
+        "category": "Codacy commands",
+        "when": "Codacy:RepositoryManagerStateContext != NeedsAuthentication && codacy:isCursor"
+      },
+      {
+        "command": "codacy.configureMCP.reset",
+        "title": "Reset Codacy MCP Server",
+        "category": "Codacy commands",
+        "when": "Codacy:RepositoryManagerStateContext != NeedsAuthentication && codacy:isCursor && codacy:mcpConfigured"
+      },
+      {
+        "command": "codacy.configureMCP",
+        "when": "Codacy:RepositoryManagerStateContext != NeedsAuthentication && codacy:isCursor && !codacy:mcpConfigured"
+      },
+      {
+        "command": "codacy.configureMCP.reset",
+        "when": "Codacy:RepositoryManagerStateContext != NeedsAuthentication && codacy:isCursor && codacy:mcpConfigured"
       }
     ],
     "menus": {
@@ -186,6 +223,14 @@
         {
           "command": "codacy.pr.checkout",
           "when": "false"
+        },
+        {
+          "command": "codacy.configureMCP",
+          "when": "Codacy:RepositoryManagerStateContext != NeedsAuthentication && codacy:isCursor && !codacy:mcpConfigured"
+        },
+        {
+          "command": "codacy.configureMCP.reset",
+          "when": "Codacy:RepositoryManagerStateContext != NeedsAuthentication && codacy:isCursor && codacy:mcpConfigured"
         }
       ],
       "view/title": [

src/commands/configureMCP.ts

@@ -0,0 +1,82 @@
+import * as vscode from 'vscode'
+import * as fs from 'fs'
+import * as path from 'path'
+import * as os from 'os'
+
+export function isMCPConfigured(): boolean {
+  try {
+    const mcpPath = path.join(os.homedir(), '.cursor', 'mcp.json')
+    if (!fs.existsSync(mcpPath)) {
+      return false
+    }
+
+    const config = JSON.parse(fs.readFileSync(mcpPath, 'utf8'))
+    return config?.mcpServers?.codacy !== undefined
+  } catch (error) {
+    // If there's any error reading or parsing the file, assume it's not configured
+    return false
+  }
+}
+
+export async function configureMCP() {
+  try {
+    // Get the Codacy API token from extension settings
+    const config = vscode.workspace.getConfiguration('codacy')
+    const apiToken = config.get<string>('apiToken')
+
+    if (!apiToken) {
+      throw new Error('Codacy API token not found in settings')
+    }
+
+    // Create .cursor directory if it doesn't exist
+    const cursorDir = path.join(os.homedir(), '.cursor')
+    if (!fs.existsSync(cursorDir)) {
+      fs.mkdirSync(cursorDir)
+    }
+
+    const mcpPath = path.join(cursorDir, 'mcp.json')
+
+    // Prepare the Codacy server configuration
+    const codacyServer = {
+      command: 'npx',
+      args: ['-y', '@codacy/codacy-mcp@latest'],
+      env: {
+        CODACY_ACCOUNT_TOKEN: apiToken,
+      },
+    }
+
+    // Read existing configuration if it exists
+    let mcpConfig = { mcpServers: {} }
+    if (fs.existsSync(mcpPath)) {
+      try {
+        const existingConfig = JSON.parse(fs.readFileSync(mcpPath, 'utf8'))
+        mcpConfig = {
+          mcpServers: {
+            ...(existingConfig.mcpServers || {}),
+            codacy: codacyServer,
+          },
+        }
+      } catch (parseError) {
+        // If the existing file is invalid JSON, we'll create a new one
+        mcpConfig = {
+          mcpServers: {
+            codacy: codacyServer,
+          },
+        }
+      }
+    } else {
+      mcpConfig = {
+        mcpServers: {
+          codacy: codacyServer,
+        },
+      }
+    }
+
+    fs.writeFileSync(mcpPath, JSON.stringify(mcpConfig, null, 2))
+
+    vscode.window.showInformationMessage('Codacy MCP server added successfully')
+  } catch (error: unknown) {
+    const errorMessage = error instanceof Error ? error.message : 'Unknown error occurred'
+    vscode.window.showErrorMessage(`Failed to configure MCP server: ${errorMessage}`)
+  }
+}

src/extension.ts

@@ -17,6 +17,7 @@ import { Account } from './codacy/Account'
 import Telemetry from './common/telemetry'
 import { decorateWithCoverage } from './views/coverage'
 import { APIState, Repository as GitRepository } from './git/git'
+import { configureMCP, isMCPConfigured } from './commands/configureMCP'
 
 /**
  * Helper function to register all extension commands
@@ -87,6 +88,13 @@ export async function activate(context: vscode.ExtensionContext) {
   Logger.appendLine('Codacy extension activated')
   context.subscriptions.push(Logger)
 
+  // Set initial context values
+  await vscode.commands.executeCommand(
+    'setContext',
+    'codacy:isCursor',
+    vscode.env.appName.toLowerCase().includes('cursor')
+  )
+
   Config.init(context)
 
   initializeApi()
@@ -170,6 +178,31 @@ export async function activate(context: vscode.ExtensionContext) {
   vscode.commands.registerCommand('codacy.pr.toggleCoverage', (item: { onClick: () => void }) => {
     item.onClick()
   })
+
+  // Register MCP commands
+  const updateMCPState = () => {
+    const isConfigured = isMCPConfigured()
+    vscode.commands.executeCommand('setContext', 'codacy:mcpConfigured', isConfigured)
+  }
+
+  // Update initially
+  updateMCPState()
+
+  // Register configure command
+  context.subscriptions.push(
+    vscode.commands.registerCommand('codacy.configureMCP', async () => {
+      await configureMCP()
+      updateMCPState()
+    })
+  )
+
+  // Register reset command
+  context.subscriptions.push(
+    vscode.commands.registerCommand('codacy.configureMCP.reset', async () => {
+      await configureMCP()
+      updateMCPState()
+    })
+  )
 }
 
 // This method is called when your extension is deactivated

src/test/mocks/MockExtensionContext.ts

@@ -41,6 +41,7 @@ export class MockExtensionContext implements ExtensionContext {
   extensionRuntime: any
   extension: any
   isNewInstall: any
+  languageModelAccessInformation: any
 
   constructor() {
     this.extensionPath = path.resolve(__dirname, '..')