support gitpod (#415)

Author: pahud

.gitattributes

@@ -1,4 +1,4 @@
-const { AwsCdkConstructLibrary, DependenciesUpgradeMechanism } = require('projen');
+const { AwsCdkConstructLibrary, DependenciesUpgradeMechanism, DevEnvironmentDockerImage, Gitpod } = require('projen');
 
 const AWS_CDK_LATEST_RELEASE = '1.73.0';
 const PROJECT_NAME = 'cdk-serverless-lamp';
@@ -52,9 +52,42 @@ const project = new AwsCdkConstructLibrary({
 });
 
 project.package.addField('resolutions', {
+  'pac-resolver': '^5.0.0',
   'set-value': '^4.0.1',
+  'ansi-regex': '^5.0.1',
 });
 
+const gitpodPrebuild = project.addTask('gitpod:prebuild', {
+  description: 'Prebuild setup for Gitpod',
+});
+// install and compile only, do not test or package.
+gitpodPrebuild.exec('yarn install --frozen-lockfile --check-files');
+gitpodPrebuild.exec('npx projen compile');
+
+let gitpod = new Gitpod(project, {
+  dockerImage: DevEnvironmentDockerImage.fromImage('public.ecr.aws/pahudnet/gitpod-workspace:latest'),
+  prebuilds: {
+    addCheck: true,
+    addBadge: true,
+    addLabel: true,
+    branches: true,
+    pullRequests: true,
+    pullRequestsFromForks: true,
+  },
+});
+
+gitpod.addCustomTask({
+  init: 'yarn gitpod:prebuild',
+  // always upgrade after init
+  command: 'npx projen upgrade',
+});
+
+gitpod.addVscodeExtensions(
+  'dbaeumer.vscode-eslint',
+  'ms-azuretools.vscode-docker',
+  'AmazonWebServices.aws-toolkit-vscode',
+);
+
 const common_exclude = ['cdk.out', 'cdk.context.json', 'docker-compose.yml', 'images', 'yarn-error.log'];
 project.npmignore.exclude(...common_exclude, '/codebase');
 project.gitignore.exclude(...common_exclude);