fix/resolve bug fetching more history (#1176)

Co-authored-by: GitHub Action <action@github.com>

.github/workflows/test.yml

@@ -689,16 +689,16 @@ jobs:
           echo '${{ toJSON(steps.changed-files-json.outputs.all_changed_files) }}'
         shell:
           bash
-      - name: Run changed-files with json raw format
-        id: changed-files-json-raw-format
+      - name: Run changed-files with json unescaped format
+        id: changed-files-json-unescaped
         uses: ./
         with:
           json: true
-          json_raw_format: true
+          escape_json: false
       - name: Show output
         run: |
-          echo '${{ toJSON(steps.changed-files-json-raw-format.outputs) }}'
-          echo '${{ toJSON(steps.changed-files-json-raw-format.outputs.all_changed_files) }}'
+          echo '${{ toJSON(steps.changed-files-json-unescaped.outputs) }}'
+          echo '${{ toJSON(steps.changed-files-json-unescaped.outputs.all_changed_files) }}'
         shell:
           bash
       - name: Run changed-files with comma separator

src/commitSha.ts

@@ -137,7 +137,7 @@ export const getSHAForPushEvent = async (
     }
 
     await verifyCommitSha({sha: previousSha, cwd: workingDirectory})
-    core.info(`Previous SHA: ${previousSha}`)
+    core.debug(`Previous SHA: ${previousSha}`)
 
     return {
       previousSha,
@@ -177,10 +177,6 @@ export const getSHAForPushEvent = async (
       core.debug('Getting previous SHA for last remote commit...')
       if (env.GITHUB_EVENT_FORCED === 'false' || !env.GITHUB_EVENT_FORCED) {
         previousSha = env.GITHUB_EVENT_BEFORE
-      } else {
-        previousSha = await getParentSha({
-          cwd: workingDirectory
-        })
       }
 
       if (
@@ -190,6 +186,19 @@ export const getSHAForPushEvent = async (
         previousSha = await getParentSha({
           cwd: workingDirectory
         })
+      } else if (
+        (await verifyCommitSha({
+          sha: previousSha,
+          cwd: workingDirectory,
+          showAsErrorMessage: false
+        })) !== 0
+      ) {
+        core.warning(
+          `Previous commit ${previousSha} is not valid. Using parent commit.`
+        )
+        previousSha = await getParentSha({
+          cwd: workingDirectory
+        })
       }
 
       if (previousSha === currentSha) {
@@ -322,7 +331,7 @@ export const getSHAForPullRequestEvent = async (
     }
 
     await verifyCommitSha({sha: currentSha, cwd: workingDirectory})
-    core.info(`Previous SHA: ${previousSha}`)
+    core.debug(`Previous SHA: ${previousSha}`)
 
     return {
       previousSha,

src/env.ts

@@ -41,6 +41,7 @@ export const getEnv = async (): Promise<Env> => {
   if (eventPath) {
     eventJson = JSON.parse(await fs.readFile(eventPath, {encoding: 'utf8'}))
   }
+  core.debug(`Env: ${JSON.stringify(process.env, null, 2)}`)
   core.debug(`Event: ${JSON.stringify(eventJson, null, 2)}`)
 
   return {

src/inputs.ts

@@ -135,7 +135,7 @@ export const getInputs = (): Inputs => {
   }
 
   if (fetchDepth) {
-    inputs.fetchDepth = parseInt(fetchDepth, 10)
+    inputs.fetchDepth = Math.max(parseInt(fetchDepth, 10), 2)
   }
 
   if (dirNamesMaxDepth) {