fix: comparing result returns none when length of commits is one

index.ts

@@ -4,7 +4,7 @@ import {ExportArgs, IsDebug} from './sources/debug.js'
 import {ReplaceStringWithBooleanInObject} from './sources/utility.js'
 import {GetLatestWorkflowTime} from './sources/actions.js'
 import {ListBranches} from './sources/branches.js'
-import {GetChangedFilesFromSHAToHead, GetCommitSHAFromLatestWorkflowTime} from './sources/commits.js'
+import {GetChangedFilesFromACommit, GetChangedFilesFromSHAToHead, GetCommitSHAFromLatestWorkflowTime} from './sources/commits.js'
 import {PurgeRequestManager} from './sources/requests.js'
 
 const Program = new Commander.Command()
@@ -38,12 +38,19 @@ 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) {
+	var ChangedFiles: string[] = []
+	if (CommitSHA.length === 0) {
 		continue
 	}
 
+	if (CommitSHA.length === 1) {
+		// eslint-disable-next-line no-await-in-loop
+		ChangedFiles = await GetChangedFilesFromACommit(ProgramOptions, CommitSHA.sha, Branch, Branches[1]).then(ChangedFiles => ChangedFiles)
+	} else {
 	// eslint-disable-next-line no-await-in-loop
-	const ChangedFiles = await GetChangedFilesFromSHAToHead(ProgramOptions, CommitSHA, Branch, Branches[1]).then(ChangedFiles => ChangedFiles)
+		ChangedFiles = await GetChangedFilesFromSHAToHead(ProgramOptions, CommitSHA.sha, Branch, Branches[1]).then(ChangedFiles => ChangedFiles)
+	}
+
 	PurgeRequest.AddURLs(ChangedFiles, Branch)
 }
 

sources/commits.ts

@@ -20,9 +20,9 @@ function CreateGitInstance(BasePath: string): Git.SimpleGit {
  * @param {Types.ProgramOptionsType} ProgramOptions The program options.
  * @param {number} LatestWorkflowRunTime The latest workflow time in milliseconds.
  * @param {string} Branch The branch or tag name.
- * @returns {Promise<string>} SHA of the latest commit.
+ * @returns {Promise<Types.CommitSHA>} SHA of the latest commit.
  */
-export async function GetCommitSHAFromLatestWorkflowTime(ProgramOptions: Types.ProgramOptionsType, LatestWorkflowRunTime: number, Branch: string): Promise<string> {
+export async function GetCommitSHAFromLatestWorkflowTime(ProgramOptions: Types.ProgramOptionsType, LatestWorkflowRunTime: number, Branch: string): Promise<Types.CommitSHA> {
 	var MatchedCommitTimeAddress = 0
 	if (ProgramOptions.shouldUseApi) {
 		const GitHubInstance = CreateGitHubInstance(ProgramOptions)
@@ -41,15 +41,15 @@ export async function GetCommitSHAFromLatestWorkflowTime(ProgramOptions: Types.P
 
 		// If any commit is pushed after the latest workflow time, skip the branch.
 		if (MatchedCommitTimeAddress === 0) {
-			return null
+			return {sha: '', length: 0}
 		}
 
 		// If the wokflow had not executed before, return SHA of the oldest commit.
 		if (LatestWorkflowRunTime === 0) {
-			return GitHubListCommits[GitHubListCommits.length - 1].sha
+			return {sha: GitHubListCommits[GitHubListCommits.length - 1].sha, length: GitHubListCommits.length}
 		}
 
-		return GitHubListCommits[MatchedCommitTimeAddress].sha
+		return {sha: GitHubListCommits[MatchedCommitTimeAddress].sha, length: GitHubListCommits.length}
 	}
 
 	if (!ProgramOptions.shouldUseApi) {
@@ -65,15 +65,15 @@ export async function GetCommitSHAFromLatestWorkflowTime(ProgramOptions: Types.P
 
 		// If any commit is pushed after the latest workflow time, skip the branch.
 		if (MatchedCommitTimeAddress === 0) {
-			return null
+			return {sha: '', length: 0}
 		}
 
-		// If the wokflow had not ex>ecuted before, return SHA of the oldest commit.
+		// If the wokflow had not executed before, return SHA of the oldest commit.
 		if (LatestWorkflowRunTime === 0) {
-			return GitLog[GitLog.length - 1].hash
+			return {sha: GitLog[GitLog.length - 1].hash, length: GitLog.length}
 		}
 
-		return GitLog[MatchedCommitTimeAddress].hash
+		return {sha: GitLog[MatchedCommitTimeAddress].hash, length: GitLog.length}
 	}
 }
 
@@ -103,3 +103,30 @@ export async function GetChangedFilesFromSHAToHead(ProgramOptions: Types.Program
 		return ChangedFiles[ChangedFiles.length - 1] === '' ? ChangedFiles.slice(0, ChangedFiles.length - 1) : ChangedFiles
 	}
 }
+
+/**
+ * @name GetChangedFilesFromACommit
+ * @description Get changed files from a commit.
+ * @param {Types.ProgramOptionsType} ProgramOptions The program options.
+ * @param {stirng} CommitSHA The commit SHA.
+ * @returns {Promise<string[]>} A list of changed files.
+ */
+export async function GetChangedFilesFromACommit(ProgramOptions: Types.ProgramOptionsType, CommitSHA: string, Branch: string, DefaultBranch: string): Promise<string[]> {
+	if (ProgramOptions.shouldUseApi) {
+		const GitHubInstance = CreateGitHubInstance(ProgramOptions)
+		const GitHubComparingRaw = await GitHubInstance.repos.getCommit({
+			owner: ProgramOptions.repo.split('/')[0],
+			repo: ProgramOptions.repo.split('/')[1],
+			ref: CommitSHA,
+		}).then(Response => Response.data)
+		return GitHubComparingRaw.files.map(File => `/gh/${File.filename}`)
+	}
+
+	if (!ProgramOptions.shouldUseApi) {
+		const GitInstance = CreateGitInstance(ProgramOptions.ciWorkspacePath)
+		const ChangedFiles = (await GitInstance.show(['--pretty=format:"%f"', '--name-only', CommitSHA])).split('\n')
+		ChangedFiles.shift() // Remove the commit message.
+		ChangedFiles.pop()
+		return ChangedFiles
+	}
+}

sources/types.ts

@@ -47,3 +47,8 @@ export type RemainingFilenamesArrayType = {
 	Filename: string;
 	BranchOrTag: string;
 }
+
+export type CommitSHA = {
+	sha: string;
+	length: number;
+}