DevCycle VSCode Extension

TLDR (Quick Start)

1. Run yarn to install packages
2. Install webpack matcher for VSCode
3. Press F5(Run > Start Debugging) to run the extension in the new window
4. Follow the login steps from the side bar (EXPLORER > DEVCYCLE) in the extension window
5. After the login steps, you should see your feature flags info on the side bar
6. You can check the commands in package.json and run from the command palette by pressing (Ctrl+Shift+P or Cmd+Shift+P on Mac) and type the commands with DevCycle prefix

What's in the folder

• This folder contains all of the files necessary for your extension.
• package.json - this is the manifest file in which you declare your extension and command.
  • The sample plugin registers a command and defines its title and command name. With this information VS Code can show the command in the command palette. It doesn’t yet need to load the plugin.
• src/extension.ts - this is the main file where you will provide the implementation of your command.
  • The file exports one function, activate, which is called the very first time your extension is activated (in this case by executing the command). Inside the activate function we call registerCommand.
  • We pass the function containing the implementation of the command as the second parameter to registerCommand.

Get up and running straight away

• To get the development environment to build locally properly, you must install a problem matcher for webpack, e.g. this one.
• Press F5 to open a new window with your extension loaded.
• Run your command from the command palette by pressing (Ctrl+Shift+P or Cmd+Shift+P on Mac) and typing Hello World.
• Set breakpoints in your code inside src/extension.ts to debug your extension.
• Find output from your extension in the debug console.

Make changes

• You can relaunch the extension from the debug toolbar after changing code in src/extension.ts.
• You can also reload (Ctrl+R or Cmd+R on Mac) the VS Code window with your extension to load your changes.

Explore the API

• You can open the full set of our API when you open the file node_modules/@types/vscode/index.d.ts.

Run tests

• Open the debug viewlet (Ctrl+Shift+D or Cmd+Shift+D on Mac) and from the launch configuration dropdown pick Extension Tests.
• Press F5 to run the tests in a new window with your extension loaded.
• See the output of the test result in the debug console.
• Make changes to src/test/suite/extension.test.ts or create new test files inside the test/suite folder.
  • The provided test runner will only consider files matching the name pattern **.test.ts.
  • You can create folders inside the test folder to structure your tests any way you want.

Go further

• Reduce the extension size and improve the startup time by bundling your extension.
• Publish your extension on the VSCode extension marketplace.
• Automate builds by setting up Continuous Integration.

[Internal] RudderStack setup

• In order to track events during development, you will need to get an authorization token from RudderStack.

1. Go to RudderStack and login with the credentials stored in 1Password
2. Go to Sources and select the VS Code Extension source
3. On the Setup tab, copy the Write Key
4. Go to a Basic Authentication Header Generator to generate a token.
5. Use the Write Key as the username and leave the password blank
6. Copy the generated token and paste it in src/analytics.ts(if this file does not exist, run the extension and it should be automatically generated for you) as the value of the RUDDERSTACK_KEY variable

CLI Version

• If a change is made that requires updating the minimum required devcycle CLI version, be sure to update the CLI_VERSION variable in the constants.ts file.