feat: add git utilities module

src/utils/git-utils.ts

@@ -43,9 +43,7 @@ export async function createWorktree(
   mainBranch: string
 ): Promise<void> {
   const git = createGit(basePath);
-
   await fs.ensureDir(workspacePath);
-
   try {
     await git.raw(['worktree', 'add', workspacePath, '-b', branchName]);
   } catch (error: any) {
@@ -58,7 +56,6 @@ export async function createWorktree(
 
 export async function removeWorktree(basePath: string, workspacePath: string, branchName: string): Promise<void> {
   const git = createGit(basePath);
-
   try {
     await git.raw(['worktree', 'remove', workspacePath, '--force']);
   } catch (error: any) {
@@ -81,10 +78,8 @@ export async function deleteBranch(git: SimpleGit, branchName: string, force: bo
 export async function listWorktrees(basePath: string): Promise<{ path: string; branch: string }[]> {
   const git = createGit(basePath);
   const result = await git.raw(['worktree', 'list', '--porcelain']);
-
   const worktrees: { path: string; branch: string }[] = [];
   const lines = result.split('\n').filter(Boolean);
-
   for (const line of lines) {
     const match = line.match(/^worktree (.+)$/);
     if (match) {
@@ -96,84 +91,35 @@ export async function listWorktrees(basePath: string): Promise<{ path: string; b
       }
     }
   }
-
   return worktrees;
 }
 
 export async function getWorktreeStatus(workspacePath: string): Promise<WorkspaceChange> {
   const git = createGit(workspacePath);
-
   const status = await git.status();
   const branch = await getCurrentBranch(git);
   const agentName = extractAgentName(branch);
-
   const changes: FileChange[] = [];
-
   for (const file of status.created) {
-    changes.push({
-      file,
-      status: 'added',
-      staged: true,
-      author: 'agent',
-      timestamp: new Date().toISOString(),
-      diff: ''
-    });
+    changes.push({ file, status: 'added', staged: true, author: 'agent', timestamp: new Date().toISOString(), diff: '' });
   }
-
   for (const file of status.modified) {
     const diff = await git.diff(['--no-color', file]);
-    changes.push({
-      file,
-      status: 'modified',
-      staged: status.staged.includes(file),
-      author: 'agent',
-      timestamp: new Date().toISOString(),
-      diff
-    });
+    changes.push({ file, status: 'modified', staged: status.staged.includes(file), author: 'agent', timestamp: new Date().toISOString(), diff });
   }
-
   for (const file of status.deleted) {
-    changes.push({
-      file,
-      status: 'deleted',
-      staged: status.staged.includes(file),
-      author: 'agent',
-      timestamp: new Date().toISOString(),
-      diff: ''
-    });
+    changes.push({ file, status: 'deleted', staged: status.staged.includes(file), author: 'agent', timestamp: new Date().toISOString(), diff: '' });
   }
-
-  return {
-    agentName,
-    branch,
-    path: workspacePath,
-    changes,
-    lastUpdated: new Date().toISOString(),
-    uncommittedCount: status.modified.length + status.created.length + status.deleted.length
-  };
+  return { agentName, branch, path: workspacePath, changes, lastUpdated: new Date().toISOString(), uncommittedCount: status.modified.length + status.created.length + status.deleted.length };
 }
 
-export async function generateDiff(
-  basePath: string,
-  workspacePath: string,
-  agentName: string,
-  comparedBranch: string = 'main'
-): Promise<DiffResult> {
+export async function generateDiff(basePath: string, workspacePath: string, agentName: string, comparedBranch: string = 'main'): Promise<DiffResult> {
   const git = createGit(workspacePath);
   const branch = await getCurrentBranch(git);
-
   const diffOutput = await git.diff(['--no-color', '--unified=3', comparedBranch]);
-
   const files = parseDiffOutput(diffOutput);
   const summary = calculateDiffSummary(files);
-
-  return {
-    agentName,
-    branch,
-    comparedBranch,
-    files,
-    summary
-  };
+  return { agentName, branch, comparedBranch, files, summary };
 }
 
 export function parseDiffOutput(output: string): DiffFile[] {
@@ -183,239 +129,84 @@ export function parseDiffOutput(output: string): DiffFile[] {
   let currentChanges: DiffLine[] = [];
   let oldLineNum: number | null = null;
   let newLineNum: number | null = null;
-
   for (const line of lines) {
     const fileMatch = line.match(/^diff --git a\/(.+) b\/(.+)$/);
     if (fileMatch) {
-      if (currentFile) {
-        currentFile.changes = currentChanges;
-        files.push(currentFile);
-      }
-      currentFile = {
-        file: fileMatch[2] || fileMatch[1],
-        oldFile: fileMatch[1] !== fileMatch[2] ? fileMatch[1] : undefined,
-        changes: [],
-        additions: 0,
-        deletions: 0
-      };
-      currentChanges = [];
-      oldLineNum = null;
-      newLineNum = null;
-      continue;
+      if (currentFile) { currentFile.changes = currentChanges; files.push(currentFile); }
+      currentFile = { file: fileMatch[2] || fileMatch[1], oldFile: fileMatch[1] !== fileMatch[2] ? fileMatch[1] : undefined, changes: [], additions: 0, deletions: 0 };
+      currentChanges = []; oldLineNum = null; newLineNum = null; continue;
     }
-
-    const indexMatch = line.match(/^index [a-f0-9]+\.\.[a-f0-9]+/);
-    if (indexMatch && currentFile) {
-      continue;
-    }
-
-    const newFileMatch = line.match(/^new file mode .+$/);
-    if (newFileMatch && currentFile) {
-      continue;
-    }
-
-    const oldFileMatch = line.match(/^deleted file mode .+$/);
-    if (oldFileMatch && currentFile) {
-      continue;
-    }
-
     const hunkMatch = line.match(/^@@ -(\d+),?(\d*) \+(\d+),?(\d*) @@/);
     if (hunkMatch && currentFile) {
       oldLineNum = parseInt(hunkMatch[1], 10);
       newLineNum = parseInt(hunkMatch[3], 10);
       continue;
     }
-
     if (currentFile) {
       let lineType: 'context' | 'added' | 'deleted' = 'context';
-
-      if (line.startsWith('+') && !line.startsWith('+++')) {
-        lineType = 'added';
-        currentFile.additions++;
-      } else if (line.startsWith('-') && !line.startsWith('---')) {
-        lineType = 'deleted';
-        currentFile.deletions++;
-      }
-
-      currentChanges.push({
-        type: lineType,
-        lineNumber: {
-          old: line.startsWith('+') || line.startsWith(' ') ? oldLineNum : null,
-          new: line.startsWith('-') || line.startsWith(' ') ? newLineNum : null
-        },
-        content: line
-      });
-
-      if (lineType !== 'added' && line !== '') {
-        oldLineNum = oldLineNum ? oldLineNum + 1 : null;
-      }
-      if (lineType !== 'deleted' && line !== '') {
-        newLineNum = newLineNum ? newLineNum + 1 : null;
-      }
+      if (line.startsWith('+') && !line.startsWith('+++')) { lineType = 'added'; currentFile.additions++; }
+      else if (line.startsWith('-') && !line.startsWith('---')) { lineType = 'deleted'; currentFile.deletions++; }
+      currentChanges.push({ type: lineType, lineNumber: { old: line.startsWith('+') || line.startsWith(' ') ? oldLineNum : null, new: line.startsWith('-') || line.startsWith(' ') ? newLineNum : null }, content: line });
+      if (lineType !== 'added' && line !== '') oldLineNum = oldLineNum ? oldLineNum + 1 : null;
+      if (lineType !== 'deleted' && line !== '') newLineNum = newLineNum ? newLineNum + 1 : null;
     }
   }
-
-  if (currentFile) {
-    currentFile.changes = currentChanges;
-    files.push(currentFile);
-  }
-
+  if (currentFile) { currentFile.changes = currentChanges; files.push(currentFile); }
   return files;
 }
-
 function calculateDiffSummary(files: DiffFile[]): { filesChanged: number; additions: number; deletions: number } {
-  let additions = 0;
-  let deletions = 0;
-
-  for (const file of files) {
-    additions += file.additions;
-    deletions += file.deletions;
-  }
-
-  return {
-    filesChanged: files.length,
-    additions,
-    deletions
-  };
+  let additions = 0, deletions = 0;
+  for (const file of files) { additions += file.additions; deletions += file.deletions; }
+  return { filesChanged: files.length, additions, deletions };
 }
 
-export async function mergeToMain(
-  basePath: string,
-  workspacePath: string,
-  agentName: string,
-  mainBranch: string,
-  message?: string,
-  dryRun: boolean = false
-): Promise<MergeResult> {
-  const git = createGit(workspacePath);
+export async function mergeToMain(basePath: string, workspacePath: string, agentName: string, mainBranch: string, message?: string, dryRun: boolean = false): Promise<MergeResult> {
   const workspaceGit = createGit(workspacePath);
   const branch = await getCurrentBranch(workspaceGit);
-
-  const commitMessage = message || `Merge agent-${agentName} changes into ${mainBranch}
-
-Agent: ${agentName}
-Branch: ${branch}
-Date: ${new Date().toISOString()}
-
-This commit was automatically generated by git-agent-sync`;
-
-  if (dryRun) {
-    return {
-      success: true,
-      message: `[DRY RUN] Would merge ${branch} into ${mainBranch}`,
-      commitSha: 'dry-run'
-    };
-  }
-
+  const commitMessage = message || `Merge agent-${agentName} changes into ${mainBranch}\n\nAgent: ${agentName}\nBranch: ${branch}\nDate: ${new Date().toISOString()}`;
+  if (dryRun) return { success: true, message: `[DRY RUN] Would merge ${branch} into ${mainBranch}`, commitSha: 'dry-run' };
   await workspaceGit.checkout(mainBranch);
   await workspaceGit.pull();
-
   try {
-    const mergeResult = await git.raw([
-      'merge',
-      '--no-ff',
-      '-m',
-      commitMessage,
-      branch
-    ]);
-
-    return {
-      success: true,
-      message: mergeResult,
-      commitSha: ''
-    };
+    const git = createGit(workspacePath);
+    const mergeResult = await git.raw(['merge', '--no-ff', '-m', commitMessage, branch]);
+    return { success: true, message: mergeResult, commitSha: '' };
   } catch (error: any) {
     if (error.message?.includes('conflict')) {
       const conflicts = await detectConflicts(workspacePath);
-      return {
-        success: false,
-        conflicts,
-        error: 'Merge conflicts detected'
-      };
+      return { success: false, conflicts, error: 'Merge conflicts detected' };
     }
     throw new GitAgentSyncError(`Merge failed: ${error.message}`);
   }
 }
-
 async function detectConflicts(workspacePath: string): Promise<ConflictInfo[]> {
   const git = createGit(workspacePath);
   const status = await git.status();
-
   const conflicts: ConflictInfo[] = [];
-
   for (const file of status.conflicted) {
     const content = await fs.readFile(path.join(workspacePath, file), 'utf-8');
-    conflicts.push({
-      file,
-      content
-    });
+    conflicts.push({ file, content });
   }
-
   return conflicts;
 }
-
 export async function hasUncommittedChanges(workspacePath: string): Promise<boolean> {
   const git = createGit(workspacePath);
   const status = await git.status();
-  return status.modified.length > 0 ||
-    status.created.length > 0 ||
-    status.deleted.length > 0;
+  return status.modified.length > 0 || status.created.length > 0 || status.deleted.length > 0;
 }
-
 export async function getLastCommitInfo(workspacePath: string): Promise<{ hash: string; message: string }> {
   const git = createGit(workspacePath);
   const log = await git.log({ maxCount: 1 });
-
-  if (log.latest) {
-    return {
-      hash: log.latest.hash,
-      message: log.latest.message || ''
-    };
-  }
-
-  return {
-    hash: '',
-    message: ''
-  };
+  if (log.latest) return { hash: log.latest.hash, message: log.latest.message || '' };
+  return { hash: '', message: '' };
 }
-
-export function extractAgentName(branch: string): string {
-  return branch.replace(/^agent-/, '');
-}
-
+export function extractAgentName(branch: string): string { return branch.replace(/^agent-/, ''); }
 export async function stashChanges(workspacePath: string, message: string): Promise<void> {
   const git = createGit(workspacePath);
   await git.stash(['push', '-m', message]);
 }
-
-export async function applyStash(workspacePath: string, stashRef: string): Promise<void> {
-  const git = createGit(workspacePath);
-  await git.stash(['apply', stashRef]);
-}
-
-export async function getStashList(workspacePath: string): Promise<{ hash: string; message: string }[]> {
-  const git = createGit(workspacePath);
-  const stashList = await git.stash(['list']);
-
-  const stashes: { hash: string; message: string }[] = [];
-  const lines = stashList.split('\n').filter(Boolean);
-
-  for (const line of lines) {
-    const match = line.match(/^(\w+@.+): (.+)$/);
-    if (match) {
-      stashes.push({
-        hash: match[1],
-        message: match[2]
-      });
-    }
-  }
-
-  return stashes;
-}
-
 export async function exportChangesAsPatch(workspacePath: string, outputPath: string): Promise<void> {
   const git = createGit(workspacePath);
   const diff = await git.diff(['--no-color', '--unified=3']);
-
   await fs.writeFile(outputPath, diff, 'utf-8');
 }