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40 lines
2.9 KiB
Markdown
40 lines
2.9 KiB
Markdown
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## Setup
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- Clone [microsoft/vscode](https://github.com/microsoft/vscode)
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- Run `yarn` at `/`, this will install
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- Dependencies for `/extension/json-language-features/`
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- Dependencies for `/extension/json-language-features/server/`
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- devDependencies such as `gulp`
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- Open `/extensions/json-language-features/` as the workspace in VS Code
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- Run the [`Launch Extension`](https://github.com/microsoft/vscode/blob/master/extensions/json-language-features/.vscode/launch.json) debug target in the Debug View. This will:
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- Launch the `preLaunchTask` task to compile the extension
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- Launch a new VS Code instance with the `json-language-features` extension loaded
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- You should see a notification saying the development version of `json-language-features` overwrites the bundled version of `json-language-features`
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- Open a `.json` file to activate the extension. The extension will start the JSON language server process.
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- Add `"json.trace.server": "verbose"` to the settings to observe the communication between client and server.
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- Debug the language server process by using `Attach to Node Process` command in the VS Code window opened on `json-language-features`
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- Run `Reload Window` command in the launched instance to reload the extension
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### Contribute to vscode-json-languageservice
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[microsoft/vscode-json-languageservice](https://github.com/microsoft/vscode-json-languageservice) is the library that implements the language smarts for JSON.
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The JSON language server forwards most the of requests to the service library.
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If you want to fix JSON issues or make improvements, you should make changes at [microsoft/vscode-json-languageservice](https://github.com/microsoft/vscode-json-languageservice).
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However, within this extension, you can run a development version of `vscode-json-languageservice` to debug code or test language features interactively:
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#### Linking `vscode-json-languageservice` in `json-language-features/server/`
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- Clone [microsoft/vscode-json-languageservice](https://github.com/microsoft/vscode-json-languageservice)
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- Run `npm install` in `vscode-json-languageservice`
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- Run `npm link` in `vscode-json-languageservice`. This will compile and link `vscode-json-languageservice`
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- In `json-language-features/server/`, run `yarn link vscode-json-languageservice`
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#### Testing the development version of `vscode-json-languageservice`
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- Open both `vscode-json-languageservice` and this extension in a single workspace with [multi-root workspace](https://code.visualstudio.com/docs/editor/multi-root-workspaces) feature
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- Run `yarn watch` at `json-languagefeatures/server/` to recompile this extension with the linked version of `vscode-json-languageservice`
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- Make some changes in `vscode-json-languageservice`
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- Now when you run `Launch Extension` debug target, the launched instance will use your development version of `vscode-json-languageservice`. You can interactively test the language features.
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