feat: update to fail the job if the patterns are invalid

src/__tests__/main.test.ts

@@ -1,3 +1,4 @@
+import {ExitCode} from '@actions/core'
 import * as core from '@actions/core'
 import {run} from '../main'
 
@@ -379,18 +380,12 @@ test('matched file patterns with braces are expanded', async () => {
   expect(core.setOutput).toHaveBeenNthCalledWith(2, 'paths', EXPECTED_FILENAMES)
 })
 
-test('warnings are logged when files are not found', async () => {
+test('error raised when files are not found', async () => {
   mockedEnv({
     ...defaultEnv,
     INPUT_FILES: 'src/__tests__/not-found.txt'
   })
 
-  // @ts-ignore
-  core.warning = jest.fn()
-
-  await run()
-
-  expect(core.warning).toHaveBeenCalledWith(
-    'No paths found using the specified patterns'
-  )
+  const expectedError = new Error('No paths found using the specified patterns')
+  await expect(run()).rejects.toThrow(expectedError)
 })

src/main.ts

@@ -277,7 +277,7 @@ export async function run(): Promise<void> {
     core.saveState('paths-output-file', pathsOutputFile)
     core.info(`Successfully created paths-output-file: ${pathsOutputFile}`)
   } else if (hasCustomPatterns) {
-    core.warning('No paths found using the specified patterns')
+    throw new Error('No paths found using the specified patterns')
   }
 
   core.setOutput('paths', pathsOutput)

src/utils.ts

@@ -49,7 +49,7 @@ export async function deletedGitFiles({
   })
 
   if (topDirStderr || topDirExitCode !== 0) {
-    core.setFailed(topDirStderr || 'An unexpected error occurred')
+    throw new Error(topDirStderr || 'An unexpected error occurred')
   }
 
   const topLevelDir = topDirStdout.trim()
@@ -63,7 +63,7 @@ export async function deletedGitFiles({
   )
 
   if (stderr || exitCode !== 0) {
-    core.setFailed(stderr || 'An unexpected error occurred')
+    throw new Error(stderr || 'An unexpected error occurred')
   }
 
   const deletedFiles = stdout
@@ -150,7 +150,9 @@ async function* lineOfFileGenerator({
   excludedFiles: boolean
 }): AsyncIterableIterator<string> {
   const fileStream = createReadStream(filePath)
-  fileStream.on('error', (error: string | Error) => core.setFailed(error))
+  fileStream.on('error', error => {
+    throw error
+  })
   const rl = createInterface({
     input: fileStream,
     crlfDelay: Infinity