Add a Git section to the context mentions

src/utils/git.ts

@@ -0,0 +1,166 @@
+import { exec } from "child_process"
+import { promisify } from "util"
+import { truncateOutput } from "../integrations/misc/extract-text"
+
+const execAsync = promisify(exec)
+const GIT_OUTPUT_LINE_LIMIT = 500
+
+export interface GitCommit {
+	hash: string
+	shortHash: string
+	subject: string
+	author: string
+	date: string
+}
+
+async function checkGitRepo(cwd: string): Promise<boolean> {
+	try {
+		await execAsync('git rev-parse --git-dir', { cwd })
+		return true
+	} catch (error) {
+		return false
+	}
+}
+
+async function checkGitInstalled(): Promise<boolean> {
+	try {
+		await execAsync('git --version')
+		return true
+	} catch (error) {
+		return false
+	}
+}
+
+export async function searchCommits(query: string, cwd: string): Promise<GitCommit[]> {
+	try {
+		const isInstalled = await checkGitInstalled()
+		if (!isInstalled) {
+			console.error("Git is not installed")
+			return []
+		}
+
+		const isRepo = await checkGitRepo(cwd)
+		if (!isRepo) {
+			console.error("Not a git repository")
+			return []
+		}
+
+		// Search commits by hash or message, limiting to 10 results
+		const { stdout } = await execAsync(
+			`git log -n 10 --format="%H%n%h%n%s%n%an%n%ad" --date=short ` +
+			`--grep="${query}" --regexp-ignore-case`,
+			{ cwd }
+		)
+
+		let output = stdout
+		if (!output.trim() && /^[a-f0-9]+$/i.test(query)) {
+			// If no results from grep search and query looks like a hash, try searching by hash
+			const { stdout: hashStdout } = await execAsync(
+				`git log -n 10 --format="%H%n%h%n%s%n%an%n%ad" --date=short ` +
+				`--author-date-order ${query}`,
+				{ cwd }
+			).catch(() => ({ stdout: "" }))
+
+			if (!hashStdout.trim()) {
+				return []
+			}
+
+			output = hashStdout
+		}
+
+		const commits: GitCommit[] = []
+		const lines = output.trim().split("\n").filter(line => line !== "--")
+
+		for (let i = 0; i < lines.length; i += 5) {
+			commits.push({
+				hash: lines[i],
+				shortHash: lines[i + 1],
+				subject: lines[i + 2],
+				author: lines[i + 3],
+				date: lines[i + 4]
+			})
+		}
+
+		return commits
+	} catch (error) {
+		console.error("Error searching commits:", error)
+		return []
+	}
+}
+
+export async function getCommitInfo(hash: string, cwd: string): Promise<string> {
+	try {
+		const isInstalled = await checkGitInstalled()
+		if (!isInstalled) {
+			return "Git is not installed"
+		}
+
+		const isRepo = await checkGitRepo(cwd)
+		if (!isRepo) {
+			return "Not a git repository"
+		}
+
+		// Get commit info, stats, and diff separately
+		const { stdout: info } = await execAsync(
+			`git show --format="%H%n%h%n%s%n%an%n%ad%n%b" --no-patch ${hash}`,
+			{ cwd }
+		)
+		const [fullHash, shortHash, subject, author, date, body] = info.trim().split('\n')
+		
+		const { stdout: stats } = await execAsync(
+			`git show --stat --format="" ${hash}`,
+			{ cwd }
+		)
+
+		const { stdout: diff } = await execAsync(
+			`git show --format="" ${hash}`,
+			{ cwd }
+		)
+
+		const summary = [
+			`Commit: ${shortHash} (${fullHash})`,
+			`Author: ${author}`,
+			`Date: ${date}`,
+			`\nMessage: ${subject}`,
+			body ? `\nDescription:\n${body}` : '',
+			'\nFiles Changed:',
+			stats.trim(),
+			'\nFull Changes:'
+		].join('\n')
+
+		const output = summary + '\n\n' + diff.trim()
+		return truncateOutput(output, GIT_OUTPUT_LINE_LIMIT)
+	} catch (error) {
+		console.error("Error getting commit info:", error)
+		return `Failed to get commit info: ${error instanceof Error ? error.message : String(error)}`
+	}
+}
+
+export async function getWorkingState(cwd: string): Promise<string> {
+	try {
+		const isInstalled = await checkGitInstalled()
+		if (!isInstalled) {
+			return "Git is not installed"
+		}
+
+		const isRepo = await checkGitRepo(cwd)
+		if (!isRepo) {
+			return "Not a git repository"
+		}
+
+		// Get status of working directory
+		const { stdout: status } = await execAsync('git status --short', { cwd })
+		if (!status.trim()) {
+			return "No changes in working directory"
+		}
+
+		// Get all changes (both staged and unstaged) compared to HEAD
+		const { stdout: diff } = await execAsync('git diff HEAD', { cwd })
+		const lineLimit = GIT_OUTPUT_LINE_LIMIT
+		const output = `Working directory changes:\n\n${status}\n\n${diff}`.trim()
+		return truncateOutput(output, lineLimit)
+	} catch (error) {
+		console.error("Error getting working state:", error)
+		return `Failed to get working state: ${error instanceof Error ? error.message : String(error)}`
+	}
+}