257 lines
7.3 KiB
TypeScript
257 lines
7.3 KiB
TypeScript
#!/usr/bin/env bun
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import * as readline from "node:readline";
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import { loadConfig, saveConfig } from "./src/config";
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import {
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isGitRepo,
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getRepoRoot,
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getStagedFiles,
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getUnstagedFiles,
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getStagedDiff,
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getRecentCommits,
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stageFiles,
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commit,
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} from "./src/git";
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import { selectFiles } from "./src/selector";
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import { collectProjectContext } from "./src/context";
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import { buildPrompt, SYSTEM_PROMPT } from "./src/prompt";
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import { generateCommitMessage } from "./src/ai";
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import { copyToClipboard } from "./src/clipboard";
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import { BOLD, GREEN, YELLOW, CYAN, RED, DIM, RESET } from "./src/terminal";
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import type { Config } from "./src/types";
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const args = process.argv.slice(2);
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function showHelp() {
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console.log(`
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${BOLD}gai${RESET} — AI-powered git commit message generator
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${BOLD}Usage:${RESET}
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gai Generate commit message for staged/changed files
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gai --auto Auto-stage all changed files
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gai --dry-run Generate message without committing
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gai config Configure API settings
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gai --help Show this help message
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gai --version Show version
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${BOLD}Configuration:${RESET}
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Set via ${CYAN}gai config${RESET} or environment variables:
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GAI_API_KEY OpenAI-compatible API key
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GAI_API_BASE API base URL (default: https://api.openai.com/v1)
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GAI_MODEL Model name (default: gpt-4o)
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GAI_MAX_TOKENS Max tokens (default: 500)
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GAI_TEMPERATURE Temperature (default: 0.7)
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`);
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}
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function ask(question: string): Promise<string> {
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const rl = readline.createInterface({
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input: process.stdin,
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output: process.stdout,
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});
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return new Promise((resolve) => {
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rl.question(question, (answer) => {
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rl.close();
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resolve(answer.trim());
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});
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});
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}
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async function handleConfig() {
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const config = await loadConfig();
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console.log(`\n ${BOLD}Current configuration:${RESET}`);
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console.log(
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` API Key: ${config.apiKey ? "****" + config.apiKey.slice(-4) : `${YELLOW}(not set)${RESET}`}`,
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);
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console.log(` API Base: ${config.apiBase}`);
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console.log(` Model: ${config.model}`);
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console.log(` Max Tokens: ${config.maxTokens}`);
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console.log(` Temperature: ${config.temperature}`);
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console.log(
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`\n ${BOLD}Enter new values (leave empty to keep current):${RESET}`,
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);
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const apiKey = await ask(" API Key: ");
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const apiBase = await ask(` API Base [${config.apiBase}]: `);
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const model = await ask(` Model [${config.model}]: `);
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const maxTokens = await ask(` Max Tokens [${config.maxTokens}]: `);
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const temperature = await ask(` Temperature [${config.temperature}]: `);
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const updates: Partial<Config> = {};
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if (apiKey) updates.apiKey = apiKey;
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if (apiBase) updates.apiBase = apiBase;
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if (model) updates.model = model;
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if (maxTokens) updates.maxTokens = parseInt(maxTokens);
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if (temperature) updates.temperature = parseFloat(temperature);
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if (Object.keys(updates).length > 0) {
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await saveConfig(updates);
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console.log(`\n ${GREEN}Configuration saved!${RESET}`);
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} else {
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console.log("\n No changes.");
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}
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}
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async function confirmCommit(message: string): Promise<"y" | "n" | "e"> {
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console.log(`\n ${BOLD}Generated commit message:${RESET}`);
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console.log(` ${GREEN}${message}${RESET}\n`);
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const answer = await ask(` Use this message? [${GREEN}Y${RESET}/n/e] `);
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const lower = answer.toLowerCase();
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if (lower === "n") return "n";
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if (lower === "e") return "e";
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return "y";
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}
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async function editMessage(current: string): Promise<string | null> {
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console.log(` Current: ${DIM}${current}${RESET}`);
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console.log(` Enter new message (empty to abort):`);
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const newMsg = await ask(" > ");
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return newMsg || null;
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}
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async function main() {
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if (args.includes("--help") || args.includes("-h")) {
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showHelp();
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return;
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}
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if (args.includes("--version") || args.includes("-v")) {
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console.log("gai v0.1.0");
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return;
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}
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if (args[0] === "config") {
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await handleConfig();
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return;
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}
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const autoMode = args.includes("--auto") || args.includes("-a");
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const dryRun = args.includes("--dry-run") || args.includes("-d");
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const config = await loadConfig();
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if (!config.apiKey) {
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console.error(
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` ${RED}Error: API key not set. Run ${BOLD}gai config${RESET}${RED} to configure.${RESET}`,
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);
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process.exit(1);
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}
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if (!(await isGitRepo())) {
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console.error(` ${RED}Error: Not a git repository.${RESET}`);
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process.exit(1);
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}
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const stagedFiles = await getStagedFiles();
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const unstagedFiles = await getUnstagedFiles();
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if (stagedFiles.length === 0 && unstagedFiles.length === 0) {
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console.log(" Nothing to commit.");
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return;
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}
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if (unstagedFiles.length > 0) {
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if (autoMode) {
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await stageFiles(unstagedFiles.map((f) => f.path));
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console.log(
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` ${GREEN}Auto-staged ${unstagedFiles.length} file(s).${RESET}`,
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);
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} else {
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const selected = await selectFiles(stagedFiles, unstagedFiles);
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if (selected.length > 0) {
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await stageFiles(selected);
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console.log(
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` ${GREEN}Staged ${selected.length} file(s).${RESET}`,
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);
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}
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}
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}
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const diff = await getStagedDiff();
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if (!diff) {
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console.log(" No staged changes to commit.");
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return;
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}
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const MAX_DIFF_SIZE = 15000;
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const truncatedDiff =
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diff.length > MAX_DIFF_SIZE
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? diff.substring(0, MAX_DIFF_SIZE) + "\n... (truncated)"
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: diff;
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const repoRoot = await getRepoRoot();
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const projectCtx = await collectProjectContext(repoRoot);
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const recentCommits = await getRecentCommits(10);
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const userPrompt = buildPrompt({
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readme: projectCtx.readme,
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packageDescription: projectCtx.packageDescription,
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structure: projectCtx.structure,
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recentCommits,
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diff: truncatedDiff,
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});
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console.log("\n Generating commit message...");
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let message: string;
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try {
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message = await generateCommitMessage(config, SYSTEM_PROMPT, userPrompt);
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} catch (err) {
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console.error(
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` ${RED}AI request failed: ${err instanceof Error ? err.message : err}${RESET}`,
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);
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process.exit(1);
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}
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if (dryRun) {
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console.log(`\n ${BOLD}Generated commit message:${RESET}`);
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console.log(` ${GREEN}${message}${RESET}`);
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await copyToClipboard(message);
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console.log(`\n ${DIM}(dry-run, message copied to clipboard)${RESET}`);
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return;
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}
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const action = await confirmCommit(message);
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if (action === "y") {
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try {
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await commit(message);
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console.log(`\n ${GREEN}Committed successfully!${RESET}`);
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} catch (err) {
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console.error(
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` ${RED}Commit failed: ${err instanceof Error ? err.message : err}${RESET}`,
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);
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process.exit(1);
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}
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} else if (action === "e") {
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const edited = await editMessage(message);
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if (edited) {
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try {
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await commit(edited);
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console.log(`\n ${GREEN}Committed successfully!${RESET}`);
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} catch (err) {
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console.error(
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` ${RED}Commit failed: ${err instanceof Error ? err.message : err}${RESET}`,
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);
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process.exit(1);
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}
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} else {
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console.log(" Aborted.");
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}
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} else {
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const copied = await copyToClipboard(message);
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console.log(
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copied
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? ` Aborted. Message copied to clipboard.`
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: ` Aborted. Message: ${message}`,
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);
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}
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}
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main().catch((err) => {
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console.error(` ${RED}Unexpected error: ${err}${RESET}`);
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process.exit(1);
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});
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