Suspenders

Suspenders is an alpha VS Code extension to provide Pants users with some quality-of-workflow improvements.

This repo contains several proof-of-concepts, as Pants requires some additions and optimizations to be able to provide a good experience in VS Code. However, I've found enough utility in several features (e.g. BUILD LSP and TOML schema), that I would consider this a useful plugin to have for Pants users/developers/maintainers.

Activation

The extension is loaded upon there being a pants.toml file in the workspace root.

Available Functionality

Suspenders functionality is very limited at the moment.

The preliminary aims are related to streamlining project introspection by creating a view container which shows source roots, targets, etc.

In addition, the command palette has been enhanced with several pants specific commands:

• Run check goal on all targets
• Run fmt goal on all targets
• Run lint goal on all targets
• Run test goal on all targets

BUILD LSP

Experimental build file LSP support was added in PR #105. It currently requires a manual step of opening the command palette and selecting "Pants: Re-generate BUILD LSP data". This generates BUILD file Python stubs, and restarts pyright which now knows to look for those stubs.

Pants.toml JSON Schema

There is already a JSON schema file uploaded to schema store for each minor release of Pants (e.g. https://json.schemastore.org/pantsbuild-2.21.0.json). Users can setup Even Better TOML to point to this schema.

Suspenders, however, will generate a pants.toml JSON schema for your currently enabled backends upon running "Pants: Re-generate BUILD LSP data". This schema is a subset of the one on schema store.

The only real difference to the user is that the schema store variant might show autocompletions that aren't available until the user activates a specific backend, while the Suspenders-generated version shouldn't have that use case.

Recommended Plugins

• Even Better TOML - Provides syntax highlighting for pants.toml files, and allows using a Pants.toml JSON schema for validation.

Using Pants

Pants has recently added first-party support for NodeJS/Javascript files (more than just formatters), but there is no Typescript support as of: PANTS_SHA=7fca4215f67b3756bd2ac723cb4cefcf83273ab3 pants fmt ::.

Important Links

• Pants Documentation
• Pants Slack channel

Feature Requests and Bugs

Any suggestions or issues can be added to the Suspenders Github issue list: https://github.com/RobotPajamas/suspenders/issues