fix(gatsby): wait for app-data.json file writing (gatsbyjs#22099)

* Cleanup app-data * revert stylistic changes Co-authored-by: Michal Piechowiak <misiek.piechowiak@gmail.com>
MaxMood96 · May 13, 2020 · 037de56 · 037de56
1 parent c178646
commit 037de56
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/packages/gatsby/src/utils/app-data.ts b/packages/gatsby/src/utils/app-data.ts
@@ -3,11 +3,10 @@ import path from "path"
 
 const APP_DATA_JSON = `app-data.json`
 
-export const write = (publicDir: string, hash: string): void => {
+export const write = (publicDir: string, hash: string): Promise<void> =>
   fs.outputJson(path.join(publicDir, `page-data`, APP_DATA_JSON), {
     webpackCompilationHash: hash,
   })
-}
 
 export const exists = (publicDir: string): boolean =>
   fs.pathExistsSync(path.join(publicDir, `page-data`, APP_DATA_JSON))