Enhancement: Support Creation of "new" .mdx content items

Is your feature request related to a problem? Please describe. As someone who exclusively uses MDX for content creation (as well as FrontMatter) I’m frustrated when creating new content because I need to change the file extension manually to support my workflow-- despite the plugin generally supporting FrontMatter in MDX files.

Describe the solution you’d like In ArticleHelper, the createContent method hard-codedly decides that the file extension should be “.md”. Similarly, this happens in template generation as well.

I’d propose this be determined via a frontmatter setting.

Describe alternatives you’ve considered

• Manually changing the file extension on my own every time I create new content (not preferred)
• Creating a field to the content type template definitions in frontMatter.taxonomy.contentTypes per @zivbk1 here.
• Respecting the file extension for template files per @zivbk1 here

Additional context I would anticipate a change like this would be fully backwards compatible, as the default extension should remain “.md”.

I’m happy to open a PR to address this once there’s some buy-in.

[farmerau]

@zivbk1 I agree that these are also great alternatives. Updated description.

[estruyf]

@farmerau I have added better mdx support for content creation. Things that changed:

• When creating content from a template, it will use the file extension of the template.
• When creating content for a content type, it will use the defined file type md | mdx. This is a new property (optional) on the frontMatter.taxonomy.contentTypes setting called fileType.
• When creating content for a content type, it will check if it has a defined file type, if not, it uses the new frontMatter.content.defaultFileType setting for the file type to create. This setting is by default set to md, but if you change it to mdx, all new content will be created as mdx files. The benefit of this setting is that you only need to specify it once, and all content types will use it.

This is now available in the beta version. Feel free to give it a try, and let me know how it works for you. Beta version can be found here: https://marketplace.visualstudio.com/items?itemName=eliostruyf.vscode-front-matter-beta

Info: In order to use the beta, you have to uninstall the main version. Nothing will be lost, it is just a limitation of VS Code.