refactor

package-lock.json

@@ -9,8 +9,8 @@
       "version": "0.1.0",
       "license": "MIT",
       "dependencies": {
-        "astro": "^3.1.2",
-        "fast-glob": "^3.3.1",
+        "astro": ">= 3",
+        "globby": "^13.2.2",
         "gray-matter": "^4.0.3"
       },
       "devDependencies": {
@@ -25,6 +25,10 @@
         "typescript": "^5.2.2",
         "vite": "^4.4.9"
       },
+      "engines": {
+        "node": ">=18.14.1",
+        "npm": ">=6.14.0"
+      },
       "peerDependencies": {
         "astro": ">= 3"
       }
@@ -3101,7 +3105,6 @@
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/dir-glob/-/dir-glob-3.0.1.tgz",
       "integrity": "sha512-WkrWp9GR4KXfKGYzOLmTuGVi1UWFfws377n9cc55/tb6DuqyF6pcQ5AbiHEshaDpY9v6oaSr2XCDidGmMwdzIA==",
-      "dev": true,
       "dependencies": {
         "path-type": "^4.0.0"
       },
@@ -4123,7 +4126,6 @@
       "version": "13.2.2",
       "resolved": "https://registry.npmjs.org/globby/-/globby-13.2.2.tgz",
       "integrity": "sha512-Y1zNGV+pzQdh7H39l9zgB4PJqjRNqydvdYCDG4HFXM4XuvSaQQlEc91IU1yALL8gUTDomgBAfz3XJdmUS+oo0w==",
-      "dev": true,
       "dependencies": {
         "dir-glob": "^3.0.1",
         "fast-glob": "^3.3.0",
@@ -4571,7 +4573,6 @@
       "version": "5.2.4",
       "resolved": "https://registry.npmjs.org/ignore/-/ignore-5.2.4.tgz",
       "integrity": "sha512-MAb38BcSbH0eHNBxn7ql2NH/kX33OkB3lZ1BNdh7ENeRChHTYsTvWrMubiIAMNS2llXEEgZ1MUOBtXChP3kaFQ==",
-      "dev": true,
       "engines": {
         "node": ">= 4"
       }
@@ -7523,7 +7524,6 @@
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/path-type/-/path-type-4.0.0.tgz",
       "integrity": "sha512-gDKb8aZMDeD/tZWs9P6+q0J9Mwkdl6xMV8TjnGP3qJVJ06bdMgkbBlLU8IdfOsIsFz2BW1rNVT3XuNEl8zPAvw==",
-      "dev": true,
       "engines": {
         "node": ">=8"
       }
@@ -9024,7 +9024,6 @@
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/slash/-/slash-4.0.0.tgz",
       "integrity": "sha512-3dOsAHXXUkQTpOYcoAxLIorMTp4gIQr5IW3iVb7A7lFIp0VHhnynm9izx6TssdrIcVIESAlVjtnO2K8bg+Coew==",
-      "dev": true,
       "engines": {
         "node": ">=12"
       },

package.json

@@ -18,6 +18,12 @@
     "release": "release-it --non-interactive",
     "prepublishOnly": "npm run build"
   },
+  "exports": {
+    ".": "./dist/index.js"
+  },
+  "files": [
+    "dist"
+  ],
   "devDependencies": {
     "@types/node": "^20.6.3",
     "@typescript-eslint/eslint-plugin": "^6.7.2",
@@ -32,7 +38,7 @@
   },
   "dependencies": {
     "astro": ">= 3",
-    "fast-glob": "^3.3.1",
+    "globby": "^13.2.2",
     "gray-matter": "^4.0.3"
   },
   "peerDependencies": {

src/getRedirects.ts

@@ -0,0 +1,32 @@
+import path from 'node:path'
+import type { Redirects } from './types'
+import { getMarkdownFrontmatter } from './utils'
+
+export async function getRedirects(
+  files: string[],
+  srcDir: string,
+  getSlug: (filePath: string) => string
+) {
+  const redirects: Redirects = {}
+
+  for (const file of files) {
+    const frontmatter = await getMarkdownFrontmatter(path.join(srcDir, file))
+    const redirectFrom: string[] = frontmatter?.redirect_from
+    if (
+      !frontmatter ||
+      !redirectFrom ||
+      (import.meta.env.PROD && frontmatter.draft === true)
+    )
+      continue
+
+    let postSlug = frontmatter.slug
+    if (!postSlug) postSlug = getSlug(file)
+    if (!postSlug) continue
+
+    for (const slug of redirectFrom) {
+      redirects[slug] = postSlug
+    }
+  }
+
+  return redirects
+}

src/index.ts

@@ -1,73 +1,43 @@
-import fs from 'node:fs/promises'
 import path from 'node:path'
-import fg from 'fast-glob'
-import matter from 'gray-matter'
-import type { AstroIntegration, AstroIntegrationLogger } from 'astro'
-import { getSlugFromFilePath, writeJson } from './utils'
-
-type PluginOptions = {
-  contentDir?: string
-  getSlug?: (filePath: string) => string
-}
+import type { AstroIntegration } from 'astro'
+import type { PluginOptions } from './types'
+import { getMarkdownFiles, getSlugFromFilePath, writeJson } from './utils'
+import { getRedirects } from './getRedirects'
 
 export default function astroRedirectFrom({
   contentDir = 'src/pages/',
   getSlug = getSlugFromFilePath
-}: PluginOptions = {}): AstroIntegration {
-  const sourceDir = path.join(process.cwd(), contentDir)
+}: PluginOptions): AstroIntegration {
+  const contentDirPath = path.join(process.cwd(), contentDir)
 
   return {
     name: 'redirect-from',
     hooks: {
-      'astro:config:setup': async ({
-        updateConfig,
-        logger
-      }: {
-        updateConfig: (newConfig: Record<string, any>) => void
-        logger: AstroIntegrationLogger
-      }) => {
-        const redirects: { [old: string]: string } = {}
-
+      'astro:config:setup': async ({ config, updateConfig, logger }) => {
         try {
-          const markdownFiles = await fg.glob('./**/*.{md,mdx}', {
-            cwd: sourceDir
-          })
+          const markdownFiles = await getMarkdownFiles(contentDirPath)
           if (!markdownFiles?.length) {
             logger.warn('No markdown files found')
             return
           }
 
-          for (const markdownFile of markdownFiles) {
-            const fileContent = await fs.readFile(
-              path.join(sourceDir, markdownFile),
-              'utf-8'
+          const redirects = await getRedirects(
+            markdownFiles,
+            contentDirPath,
+            getSlug
           )
-
-            const { data: frontmatter } = matter(fileContent)
-            const postRedirectFrom: string[] = frontmatter?.redirect_from
-            if (
-              !frontmatter ||
-              !postRedirectFrom ||
-              // filter out drafts in production
-              (import.meta.env.PROD && frontmatter.draft === true)
-            )
-              continue
-
-            let postSlug = frontmatter.slug
-            if (!postSlug) postSlug = getSlug(markdownFile)
-            if (!postSlug) continue
-
-            for (const slug of postRedirectFrom) {
-              redirects[slug] = postSlug
-            }
+          if (!redirects || !Object.keys(redirects).length) {
+            logger.info('No redirects found in markdown files')
+            return
           }
 
           updateConfig({ redirects })
 
-          await writeJson(
-            path.join(process.cwd(), '.astro', 'redirect_from.json'),
-            redirects
+          const redirectFilePath = path.join(
+            config.cacheDir.pathname, // Default is ./node_modules/.astro/
+            'redirect_from.json'
           )
+          await writeJson(redirectFilePath, redirects)
 
           logger.info(
             `Added ${Object.keys(redirects).length} redirects to Astro config`

src/types.ts

@@ -0,0 +1,8 @@
+export type GetSlug = (filePath: string) => string
+
+export type PluginOptions = {
+  contentDir?: string
+  getSlug?: GetSlug
+}
+
+export type Redirects = { [old: string]: string }

src/utils.ts

@@ -1,5 +1,21 @@
 import path from 'node:path'
 import { promises as fs, type PathLike } from 'node:fs'
+import { globby } from 'globby'
+import matter from 'gray-matter'
+
+export async function getMarkdownFiles(sourceDir: string) {
+  const markdownFiles = await globby('./**/*.{md,mdx}', {
+    cwd: sourceDir,
+    gitignore: true
+  })
+  return markdownFiles
+}
+
+export async function getMarkdownFrontmatter(filePath: string) {
+  const fileContent = await fs.readFile(filePath, { encoding: 'utf-8' })
+  const { data: frontmatter } = matter(fileContent)
+  return frontmatter
+}
 
 export function getSlugFromFilePath(filePath: string) {
   const parsedPath = path.parse(filePath)

tsconfig.json

@@ -4,6 +4,10 @@
   "exclude": ["node_modules", "dist"],
   "compilerOptions": {
     "outDir": "./dist",
-    "types": ["vite/client"]
+    "types": ["vite/client"],
+    "declaration": true,
+    // ovewrite astro/tsconfigs values
+    "noEmit": false,
+    "allowImportingTsExtensions": false
   }
 }