v2.0.0 Tracking Issue

[andrewbranch]

Short version: several things are necessitating some breaking changes, and it’s a good opportunity to think about what else I would want to see in a v2. I haven’t gone into the details much here, but thoughts and questions are welcome.

WIP in the v2 branch. You can try it out now! npm install gatsby-remark-vscode@alpha

Meta/infrastructure

• Publish alpha releases from v2 branch (Add job for publishing alpha to npm #65)
• Improved integration test infrastructure
• Add migration guide, contributing guide, COC, etc.
• Infrastructure for marking options as deprecated

Breaking changes

• Breaking changes to token CSS/HTML to fix multi-theme conflicts (Calculate token styles once per theme #63)
• Replace extension downloading capability with extension retrieval from node_modules (npm-installed extensions #67)

Stable features

• Parent-selector-based theme switching (Allow manual switch of dark/light mode #39, Add new theme option with parentSelector API #66)
• Replace oniguruma with onigasm by default, use oniguruma if available (Dependence on oniguruma causes node 12 incompatibility #22, Failed to install gatsby-remark-vscode on windows 10 with python 3.7.3 #24) (vscode-textmate has a hard dependency on oniguruma)

Preview features

(Hoping to make stable for 2.1)

• Populate GraphQL with tokenization data (Is it possible to parse a normal string? #59, Expose tokenization to GraphQL #53)