-
-
Notifications
You must be signed in to change notification settings - Fork 2.6k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
2 changed files
with
93 additions
and
88 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,88 @@ | ||
| import fs from 'node:fs/promises'; | ||
| import { setVfileFrontmatter } from '@astrojs/markdown-remark'; | ||
| import type { AstroConfig, SSRError } from 'astro'; | ||
| import { VFile } from 'vfile'; | ||
| import type { Plugin } from 'vite'; | ||
| import type { MdxOptions } from './index.js'; | ||
| import { createMdxProcessor } from './plugins.js'; | ||
| import { getFileInfo, parseFrontmatter } from './utils.js'; | ||
|
|
||
| export function vitePluginMdx(astroConfig: AstroConfig, mdxOptions: MdxOptions): Plugin { | ||
| let processor: ReturnType<typeof createMdxProcessor> | undefined; | ||
|
|
||
| return { | ||
| name: '@mdx-js/rollup', | ||
| enforce: 'pre', | ||
| buildEnd() { | ||
| processor = undefined; | ||
| }, | ||
| configResolved(resolved) { | ||
| processor = createMdxProcessor(mdxOptions, { | ||
| sourcemap: !!resolved.build.sourcemap, | ||
| }); | ||
|
|
||
| // HACK: move ourselves before Astro's JSX plugin to transform things in the right order | ||
| const jsxPluginIndex = resolved.plugins.findIndex((p) => p.name === 'astro:jsx'); | ||
| if (jsxPluginIndex !== -1) { | ||
| const myPluginIndex = resolved.plugins.findIndex((p) => p.name === '@mdx-js/rollup'); | ||
| if (myPluginIndex !== -1) { | ||
| const myPlugin = resolved.plugins[myPluginIndex]; | ||
| // @ts-ignore-error ignore readonly annotation | ||
| resolved.plugins.splice(myPluginIndex, 1); | ||
| // @ts-ignore-error ignore readonly annotation | ||
| resolved.plugins.splice(jsxPluginIndex, 0, myPlugin); | ||
| } | ||
| } | ||
| }, | ||
| async resolveId(source, importer, options) { | ||
| if (importer?.endsWith('.mdx') && source[0] !== '/') { | ||
| let resolved = await this.resolve(source, importer, options); | ||
| if (!resolved) resolved = await this.resolve('./' + source, importer, options); | ||
| return resolved; | ||
| } | ||
| }, | ||
| // Override transform to alter code before MDX compilation | ||
| // ex. inject layouts | ||
| async transform(_, id) { | ||
| if (!id.endsWith('.mdx')) return; | ||
|
|
||
| // Read code from file manually to prevent Vite from parsing `import.meta.env` expressions | ||
| const { fileId } = getFileInfo(id, astroConfig); | ||
| const code = await fs.readFile(fileId, 'utf-8'); | ||
|
|
||
| const { data: frontmatter, content: pageContent } = parseFrontmatter(code, id); | ||
|
|
||
| const vfile = new VFile({ value: pageContent, path: id }); | ||
| // Ensure `data.astro` is available to all remark plugins | ||
| setVfileFrontmatter(vfile, frontmatter); | ||
|
|
||
| // `processor` is initialized in `configResolved`, and removed in `buildEnd`. `transform` | ||
| // should be called in between those two lifecycle, so this error should never happen | ||
| if (!processor) { | ||
| return this.error( | ||
| 'MDX processor is not initialized. This is an internal error. Please file an issue.' | ||
| ); | ||
| } | ||
|
|
||
| try { | ||
| const compiled = await processor.process(vfile); | ||
|
|
||
| return { | ||
| code: String(compiled.value), | ||
| map: compiled.map, | ||
| }; | ||
| } catch (e: any) { | ||
| const err: SSRError = e; | ||
|
|
||
| // For some reason MDX puts the error location in the error's name, not very useful for us. | ||
| err.name = 'MDXError'; | ||
| err.loc = { file: fileId, line: e.line, column: e.column }; | ||
|
|
||
| // For another some reason, MDX doesn't include a stack trace. Weird | ||
| Error.captureStackTrace(err); | ||
|
|
||
| throw err; | ||
| } | ||
| }, | ||
| }; | ||
| } |