refactor: show gist_file_name correctly if not provided

Author: exuanbo

dist/index.js

@@ -7,27 +7,28 @@ import { getInput } from './input'
 export const run = async (): Promise<void> => {
   const input = getInput()
 
+  const workSpace = process.env.GITHUB_WORKSPACE!
+  const filePath = path.join(workSpace, input.filePath)
+  const fileName = input.gistFileName ?? path.basename(filePath)
+
   startGroup('Dump inputs')
   info(`\
 [INFO] GistId: ${input.gistId}${
     input.gistDescription === undefined
       ? ''
       : `\n[INFO] GistDescription: ${input.gistDescription}`
   }
-[INFO] GistFileName: ${input.gistFileName ?? 'No Change'}
+[INFO] GistFileName: ${fileName}
 [INFO] FilePath: ${input.filePath}`)
   endGroup()
 
   startGroup('Read file content')
-  const workSpace = process.env.GITHUB_WORKSPACE!
-  const filePath = path.join(workSpace, input.filePath)
   const content = await fs.readFile(filePath, 'utf-8')
   info(`[INFO] Done with file "${filePath}"`)
   endGroup()
 
   startGroup('Deploy to gist')
   const octokit = getOctokit(input.token)
-  const fileName = input.gistFileName ?? path.basename(filePath)
   await octokit.rest.gists.update({
     gist_id: input.gistId,
     description: input.gistDescription,