Fix: Respect .gitignore when discovering web and extension configurations

* Implement gitignore filtering for web and extension directories
Co-authored-by: kairosci <226562783+kairosci@users.noreply.github.com>

* Fix prettier formatting issues
Co-authored-by: kairosci <226562783+kairosci@users.noreply.github.com>

* Fix prettier formatting in test file
Co-authored-by: kairosci <226562783+kairosci@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: kairosci <226562783+kairosci@users.noreply.github.com>

Author: Copilot

packages/app/src/cli/models/app/loader.test.ts

@@ -753,6 +753,45 @@ redirect_urls = [ "https://example.com/api/auth" ]
     expect(app.webs.length).toBe(0)
   })
 
+  test('ignores web blocks in gitignored directories', async () => {
+    // Given
+    const {webDirectory} = await writeConfig(appConfiguration)
+
+    // Create a gitignored directory with a web config
+    const ignoredDirectory = joinPath(tmpDir, 'ignored-worktree')
+    await mkdir(ignoredDirectory)
+    await writeWebConfiguration({webDirectory: ignoredDirectory, role: 'backend'})
+
+    // Create .gitignore file
+    const gitignoreContent = 'ignored-worktree/\n'
+    await writeFile(joinPath(tmpDir, '.gitignore'), gitignoreContent)
+
+    // When
+    const app = await loadTestingApp()
+
+    // Then
+    // Should only load the web from the non-ignored directory
+    expect(app.webs.length).toBe(1)
+    expect(app.webs[0]!.directory).not.toContain('ignored-worktree')
+  })
+
+  test('loads all web blocks when no .gitignore file exists', async () => {
+    // Given
+    const {webDirectory} = await writeConfig(appConfiguration)
+
+    // Create another directory with a web config (but no .gitignore file)
+    const anotherDirectory = joinPath(tmpDir, 'another-web')
+    await mkdir(anotherDirectory)
+    await writeWebConfiguration({webDirectory: anotherDirectory, role: 'frontend'})
+
+    // When
+    const app = await loadTestingApp()
+
+    // Then
+    // Should load both web blocks since there's no .gitignore
+    expect(app.webs.length).toBe(2)
+  })
+
   test('loads the app when it has a extension with a valid configuration', async () => {
     // Given
     await writeConfig(appConfiguration)
@@ -834,6 +873,44 @@ redirect_urls = [ "https://example.com/api/auth" ]
     expect(app.allExtensions[0]!.localIdentifier).toBe('custom-extension')
   })
 
+  test('ignores extensions in gitignored directories', async () => {
+    // Given
+    await writeConfig(appConfiguration)
+
+    // Create a non-ignored extension
+    const blockConfiguration = `
+      name = "my_extension"
+      type = "checkout_post_purchase"
+    `
+    await writeBlockConfig({
+      blockConfiguration,
+      name: 'my-extension',
+    })
+    await writeFile(joinPath(blockPath('my-extension'), 'index.js'), '')
+
+    // Create a gitignored directory with an extension
+    const ignoredExtensionDir = joinPath(tmpDir, 'extensions', 'ignored-extension')
+    await mkdir(ignoredExtensionDir)
+    const ignoredBlockConfiguration = `
+      name = "ignored_extension"
+      type = "checkout_post_purchase"
+    `
+    await writeFile(joinPath(ignoredExtensionDir, 'my-ignored-extension.extension.toml'), ignoredBlockConfiguration)
+    await writeFile(joinPath(ignoredExtensionDir, 'index.js'), '')
+
+    // Create .gitignore file
+    const gitignoreContent = 'extensions/ignored-extension/\n'
+    await writeFile(joinPath(tmpDir, '.gitignore'), gitignoreContent)
+
+    // When
+    const app = await loadTestingApp()
+
+    // Then
+    // Should only load the non-ignored extension
+    expect(app.allExtensions.length).toBe(1)
+    expect(app.allExtensions[0]!.configuration.name).toBe('my_extension')
+  })
+
   test('loads the app from a extension directory when it has a extension with a valid configuration', async () => {
     // Given
     await writeConfig(appConfiguration)

packages/app/src/cli/models/app/loader.ts

@@ -400,7 +400,10 @@ class AppLoader<TConfig extends AppConfiguration, TModuleSpec extends ExtensionS
       return joinPath(appDirectory, webGlob, configurationFileNames.web)
     })
     webConfigGlobs.push(`!${joinPath(appDirectory, '**/node_modules/**')}`)
-    const webTomlPaths = await glob(webConfigGlobs)
+    const allWebTomlPaths = await glob(webConfigGlobs)
+
+    // Filter out paths that are ignored by .gitignore
+    const webTomlPaths = await filterIgnoredPaths(appDirectory, allWebTomlPaths)
 
     const webs = await Promise.all(webTomlPaths.map((path) => this.loadWeb(path)))
     this.validateWebs(webs)
@@ -559,7 +562,10 @@ class AppLoader<TConfig extends AppConfiguration, TModuleSpec extends ExtensionS
       return joinPath(appDirectory, extensionPath, '*.extension.toml')
     })
     extensionConfigPaths.push(`!${joinPath(appDirectory, '**/node_modules/**')}`)
-    const configPaths = await glob(extensionConfigPaths)
+    const allConfigPaths = await glob(extensionConfigPaths)
+
+    // Filter out paths that are ignored by .gitignore
+    const configPaths = await filterIgnoredPaths(appDirectory, allConfigPaths)
 
     return configPaths.map(async (configurationPath) => {
       const directory = dirname(configurationPath)
@@ -999,6 +1005,22 @@ async function checkIfGitTracked(appDirectory: string, configurationPath: string
   return isTracked
 }
 
+/**
+ * Filters an array of paths to exclude those that match patterns in .gitignore
+ */
+async function filterIgnoredPaths(appDirectory: string, paths: string[]): Promise<string[]> {
+  const gitIgnorePath = joinPath(appDirectory, '.gitignore')
+  if (!fileExistsSync(gitIgnorePath)) return paths
+
+  const gitIgnoreContent = await readFile(gitIgnorePath)
+  const ignored = ignore.default().add(gitIgnoreContent)
+
+  return paths.filter((path) => {
+    const relative = relativePath(appDirectory, path)
+    return !ignored.ignores(relative)
+  })
+}
+
 async function getConfigurationPath(appDirectory: string, configName: string | undefined) {
   const configurationFileName = getAppConfigurationFileName(configName)
   const configurationPath = joinPath(appDirectory, configurationFileName)