Files
aicommits/src/aicommits.ts
2023-02-15 01:53:37 -05:00

122 lines
3.2 KiB
JavaScript

#!/usr/bin/env node
import { execSync } from 'child_process';
import chalk from 'chalk';
import inquirer from 'inquirer';
import fetch from 'node-fetch';
const OPENAI_KEY = process.env.OPENAI_KEY ?? process.env.OPENAI_API_KEY;
export async function main() {
console.log(chalk.white('▲ ') + chalk.green('Welcome to AICommits!'));
if (!OPENAI_KEY) {
console.error(
`${chalk.white('▲ ')
}Please save your OpenAI API key as an env variable by doing 'export OPENAI_KEY=YOUR_API_KEY'`,
);
process.exit(1);
}
try {
execSync('git rev-parse --is-inside-work-tree', {
encoding: 'utf8',
stdio: 'ignore',
});
} catch {
console.error(`${chalk.white('▲ ')}This is not a git repository`);
process.exit(1);
}
const diff = execSync(
'git diff --cached . ":(exclude)package-lock.json" ":(exclude)yarn.lock" ":(exclude)pnpm-lock.yaml"',
{
encoding: 'utf8',
},
);
if (!diff) {
console.log(
`${chalk.white('▲ ')
}No staged changes found. Make sure there are changes and run \`git add .\``,
);
process.exit(1);
}
// Accounting for GPT-3's input req of 4k tokens (approx 8k chars)
if (diff.length > 8000) {
console.log(
`${chalk.white('▲ ')}The diff is too large to write a commit message.`,
);
process.exit(1);
}
const prompt = `I want you to act like a git commit message writer. I will input a git diff and your job is to convert it into a useful commit message. Do not preface the commit with anything, use the present tense, return a complete sentence, and do not repeat yourself: ${diff}`;
console.log(
chalk.white('▲ ') + chalk.gray('Generating your AI commit message...\n'),
);
try {
const aiCommitMessage = await generateCommitMessage(prompt);
console.log(
`${chalk.white('▲ ') + chalk.bold('Commit message: ') + aiCommitMessage
}\n`,
);
const confirmationMessage = await inquirer.prompt([
{
name: 'useCommitMessage',
message: 'Would you like to use this commit message? (Y / n)',
choices: ['Y', 'y', 'n'],
default: 'y',
},
]);
if (confirmationMessage.useCommitMessage === 'n') {
console.log(`${chalk.white('▲ ')}Commit message has not been commited.`);
process.exit(1);
}
execSync(`git commit -m "${aiCommitMessage}"`, {
stdio: 'inherit',
encoding: 'utf8',
});
} catch (error) {
console.error(chalk.white('▲ ') + chalk.red(error.message));
process.exit(1);
}
}
async function generateCommitMessage(prompt: string) {
const payload = {
model: 'text-davinci-003',
prompt,
temperature: 0.7,
top_p: 1,
frequency_penalty: 0,
presence_penalty: 0,
max_tokens: 200,
stream: false,
n: 1,
};
const response = await fetch('https://api.openai.com/v1/completions', {
headers: {
'Content-Type': 'application/json',
Authorization: `Bearer ${OPENAI_KEY ?? ''}`,
},
method: 'POST',
body: JSON.stringify(payload),
});
if (response.status !== 200) {
const errorJson: any = await response.json();
throw new Error(
`OpenAI API failed while processing the request '${errorJson?.error?.message}'`,
);
}
const json: any = await response.json();
const aiCommit = json.choices[0].text;
return aiCommit.replace(/(\r\n|\n|\r)/g, '');
}