fix: check if the cache is up to date

index.ts

@@ -38,6 +38,10 @@ const PurgeRequest = new PurgeRequestManager(ProgramOptions)
 for (const Branch of Branches) {
 	// eslint-disable-next-line no-await-in-loop
 	const CommitSHA = await GetCommitSHAFromLatestWorkflowTime(ProgramOptions, LatestWorkflowRunTime, Branch).then(CommitSHA => CommitSHA)
+	if (CommitSHA === null) {
+		continue
+	}
+
 	// eslint-disable-next-line no-await-in-loop
 	const ChangedFiles = await GetChangedFilesFromSHAToHead(ProgramOptions, CommitSHA, Branch, Branches[1]).then(ChangedFiles => ChangedFiles)
 	PurgeRequest.AddURLs(ChangedFiles, Branch)

sources/commits.ts

@@ -40,6 +40,10 @@ export async function GetCommitSHAFromLatestWorkflowTime(ProgramOptions: Types.P
 			MatchedCommitTimeAddress++
 		}
 
+		if (GitHubListCommitsRaw.length === 0) {
+			return null
+		}
+
 		return GitHubListCommitsRaw[MatchedCommitTimeAddress - 1].sha
 	}
 
@@ -54,6 +58,10 @@ export async function GetCommitSHAFromLatestWorkflowTime(ProgramOptions: Types.P
 			MatchedCommitTimeAddress++
 		}
 
+		if (GitLogRaw.length === 0) {
+			return null
+		}
+
 		return GitLogRaw[MatchedCommitTimeAddress - 1].hash
 	}
 }