prettier support

src/build.ts

@@ -3,12 +3,14 @@ import { existsSync, writeFileSync, unlinkSync } from 'fs'
 import { DistPath, ScriptBase, ScriptPath } from './paths'
 import { UserScriptMetaFull } from './types'
 import readMeta from './readmeta'
+import { format, Options } from 'prettier'
 
 export default function (
     name: string,
     watchCallback:
         | ((meta: UserScriptMetaFull, error: string | null) => void)
-        | false = false
+        | false = false,
+    PrettierConfig: Options | null
 ): [UserScriptMetaFull, string | null] {
     //read meta file
     let [metaJson, metaString] = readMeta(name)
@@ -44,7 +46,11 @@ export default function (
                 console.error(name, result.errorRaw || result.error)
                 error = result.error
             } else if (result.content) {
-                writeFileSync(pathDist, metaString + result.content)
+                let content = format(
+                    metaString + result.content,
+                    PrettierConfig === null ? undefined : PrettierConfig
+                )
+                writeFileSync(pathDist, content)
             } else {
                 console.error(name, 'No output')
             }
@@ -64,7 +70,11 @@ export default function (
         console.error(name, result.errorRaw || result.error)
         error = result.error
     } else if (result.content) {
-        writeFileSync(pathDist, metaString + result.content)
+        let content = format(
+            metaString + result.content,
+            PrettierConfig === null ? undefined : PrettierConfig
+        )
+        writeFileSync(pathDist, content)
     } else {
         console.error(name, 'No output')
     }
@@ -160,18 +170,6 @@ function runEsbuild(
     }
 }
 
-// //only remove the filename comments if there's only 1 file
-// function clearFilenameComments(content: string): string {
-//     let regexp = new RegExp(`//\\s*${ScriptBase}/.*(?:\\n|$)`, 'g')
-//     let matches = content.match(regexp)
-//     if (matches) {
-//         if (matches.length === 1) {
-//             content = content.replace(regexp, '')
-//         }
-//     }
-//     return content
-// }
-
 //remove all filename comments
 function clearFilenameComments(content: string): string {
     let regexp = new RegExp(`//\\s*${ScriptBase}/.*(?:\\n|$)`, 'g')