refactor: use 'export =' to build a CommonJS module that exports a fu…

…nction
wd-David · Jun 18, 2022 · f3f96fd · f3f96fd
1 parent 5fc632d
commit f3f96fd
Showing 1 changed file with 87 additions and 85 deletions.
diff --git a/src/index.ts b/src/index.ts
@@ -33,106 +33,108 @@ import type { Plugin } from 'esbuild'
  *   }).catch(() => process.exit(1))
  * ```
  */
-const esbuildPluginPino = ({
+export = function esbuildPluginPino({
   transports
 }: {
   transports: string[]
-}): Plugin => ({
-  name: 'pino',
-  setup(currentBuild) {
-    const pino = dirname(require.resolve('pino'))
-    const threadStream = dirname(require.resolve('thread-stream'))
+}): Plugin {
+  return {
+    name: 'pino',
+    setup(currentBuild) {
+      const pino = dirname(require.resolve('pino'))
+      const threadStream = dirname(require.resolve('thread-stream'))
 
-    let entrypoints = currentBuild.initialOptions.entryPoints
-    if (Array.isArray(entrypoints)) {
-      let outbase = currentBuild.initialOptions.outbase
-      if (!outbase) {
-        const hierarchy = entrypoints[0].split(sep)
-        let i = 0
-        outbase = ''
-        let nextOutbase = ''
-        do {
-          outbase = nextOutbase
-          i++
-          nextOutbase = hierarchy.slice(0, i).join(sep)
-        } while (entrypoints.every((e) => e.startsWith(`${nextOutbase}${sep}`)))
-      }
-      const newEntrypoints: Record<string, string> = {}
-      for (const entrypoint of entrypoints) {
-        const destination = (
-          outbase ? entrypoint.replace(`${outbase}${sep}`, '') : entrypoint
-        ).replace(/.(js|ts)$/, '')
-        newEntrypoints[destination] = entrypoint
+      let entrypoints = currentBuild.initialOptions.entryPoints
+      if (Array.isArray(entrypoints)) {
+        let outbase = currentBuild.initialOptions.outbase
+        if (!outbase) {
+          const hierarchy = entrypoints[0].split(sep)
+          let i = 0
+          outbase = ''
+          let nextOutbase = ''
+          do {
+            outbase = nextOutbase
+            i++
+            nextOutbase = hierarchy.slice(0, i).join(sep)
+          } while (
+            entrypoints.every((e) => e.startsWith(`${nextOutbase}${sep}`))
+          )
+        }
+        const newEntrypoints: Record<string, string> = {}
+        for (const entrypoint of entrypoints) {
+          const destination = (
+            outbase ? entrypoint.replace(`${outbase}${sep}`, '') : entrypoint
+          ).replace(/.(js|ts)$/, '')
+          newEntrypoints[destination] = entrypoint
+        }
+        entrypoints = newEntrypoints
       }
-      entrypoints = newEntrypoints
-    }
 
-    const customEntrypoints = {
-      'thread-stream-worker': join(threadStream, 'lib/worker.js'),
-      'pino-worker': join(pino, 'lib/worker.js'),
-      'pino-pipeline-worker': join(pino, 'lib/worker-pipeline.js'),
-      'pino-file': join(pino, 'file.js')
-    }
-    const transportsEntrypoints = Object.fromEntries(
-      (transports || []).map((t) => [t, require.resolve(t)])
-    )
-    currentBuild.initialOptions.entryPoints = {
-      ...entrypoints,
-      ...customEntrypoints,
-      ...transportsEntrypoints
-    }
+      const customEntrypoints = {
+        'thread-stream-worker': join(threadStream, 'lib/worker.js'),
+        'pino-worker': join(pino, 'lib/worker.js'),
+        'pino-pipeline-worker': join(pino, 'lib/worker-pipeline.js'),
+        'pino-file': join(pino, 'file.js')
+      }
+      const transportsEntrypoints = Object.fromEntries(
+        (transports || []).map((t) => [t, require.resolve(t)])
+      )
+      currentBuild.initialOptions.entryPoints = {
+        ...entrypoints,
+        ...customEntrypoints,
+        ...transportsEntrypoints
+      }
 
-    let pinoBundlerRan = false
+      let pinoBundlerRan = false
 
-    currentBuild.onEnd(() => {
-      pinoBundlerRan = false
-    })
+      currentBuild.onEnd(() => {
+        pinoBundlerRan = false
+      })
 
-    currentBuild.onLoad({ filter: /pino\.js$/ }, async (args) => {
-      if (pinoBundlerRan) return
-      pinoBundlerRan = true
+      currentBuild.onLoad({ filter: /pino\.js$/ }, async (args) => {
+        if (pinoBundlerRan) return
+        pinoBundlerRan = true
 
-      const contents = await readFile(args.path, 'utf8')
+        const contents = await readFile(args.path, 'utf8')
 
-      const absoluteOutputPath = join(
-        resolve('./'),
-        currentBuild.initialOptions.outdir || 'dist'
-      )
+        const absoluteOutputPath = join(
+          resolve('./'),
+          currentBuild.initialOptions.outdir || 'dist'
+        )
 
-      const functionDeclaration = `
-        function pinoBundlerAbsolutePath(p) {
-          try {
-            return require('path').join('${absoluteOutputPath}', p)
-          } catch(e) {
-            const f = new Function('p', 'return new URL(p, import.meta.url).pathname');
-            return f(p)
+        const functionDeclaration = `
+          function pinoBundlerAbsolutePath(p) {
+            try {
+              return require('path').join('${absoluteOutputPath}', p)
+            } catch(e) {
+              const f = new Function('p', 'return new URL(p, import.meta.url).pathname');
+              return f(p)
+            }
           }
-        }
-      `
+        `
 
-      const pinoOverrides = Object.keys(customEntrypoints)
-        .map(
-          (id) =>
-            `'${
-              id === 'pino-file' ? 'pino/file' : id
-            }': pinoBundlerAbsolutePath('./${id}.js')`
-        )
-        .join(',')
+        const pinoOverrides = Object.keys(customEntrypoints)
+          .map(
+            (id) =>
+              `'${
+                id === 'pino-file' ? 'pino/file' : id
+              }': pinoBundlerAbsolutePath('./${id}.js')`
+          )
+          .join(',')
 
-      const globalThisDeclaration = `
-        globalThis.__bundlerPathsOverrides =
-          globalThis.__bundlerPathsOverrides
-              ? {...globalThis.__bundlerPathsOverrides, ${pinoOverrides}}
-              : {${pinoOverrides}};
-      `
+        const globalThisDeclaration = `
+          globalThis.__bundlerPathsOverrides =
+            globalThis.__bundlerPathsOverrides
+                ? {...globalThis.__bundlerPathsOverrides, ${pinoOverrides}}
+                : {${pinoOverrides}};
+        `
 
-      const code = functionDeclaration + globalThisDeclaration
+        const code = functionDeclaration + globalThisDeclaration
 
-      return {
-        contents: code + contents
-      }
-    })
+        return {
+          contents: code + contents
+        }
+      })
+    }
   }
-})
-
-export default esbuildPluginPino
+}