sinProject-Inc/talk

import { exec as execCallback } from 'child_process'
import { promisify } from 'util'

export class CreateGitBranch {
    private _to_kebab_case(str: string): string {
        return str
            .split(/[\s_]+/)
            .map((word) => word.toLowerCase())
            .join('-')
    }

    private _generate_branch_name(issue_string: string): string {
        // Issue名と番号を抽出
        const issue_parts = RegExp(/^(.*?)(#\d+)$/).exec(issue_string)

        if (!issue_parts) {
            throw new Error('Invalid issue string format')
        }

        const name_part = issue_parts[1]
        const number_part = issue_parts[2]

        if (!name_part || !number_part) {
            throw new Error('Invalid issue string format')
        }

        const issue_number = number_part.substring(1)
        const replaced_issue_name = name_part.replaceAll(/[/_]/g, '-').trim()
        const issue_name = replaced_issue_name.replaceAll(/[^a-zA-Z0-9- .]/g, '').trim()
        const kebab_case_issue_name = this._to_kebab_case(issue_name)

        // Issue番号とkebab-case形式のIssue名を組み合わせてブランチ名を生成
        const branch_name = `${issue_number}-${kebab_case_issue_name}`

        // eslint-disable-next-line no-console
        // console.info(branch_name)

        return branch_name
    }

    private async _create_git_branch(branch_name: string): Promise<void> {
        const exec = promisify(execCallback)

        try {
            const { stdout, stderr } = await exec(`git checkout -b ${branch_name}`)

            // eslint-disable-next-line no-console
            console.log(stderr || stdout)
        } catch (error) {
            // eslint-disable-next-line no-console
            console.warn((error as Error).message)
        }
    }

    public async exec(issue_string: string): Promise<void> {
        const branch_name = this._generate_branch_name(issue_string)

        await this._create_git_branch(branch_name)
    }
}

const args = process.argv.slice(2) // 最初の2つの要素はNode.jsの実行パスとスクリプトのファイルパスなので、スライスで削除します。

if (args.length > 0) {
    const issue_string = args[0]

    if (!issue_string) {
        // eslint-disable-next-line no-console
        console.error('No branch string provided.')
        process.exit(1)
    }

    try {
        await new CreateGitBranch().exec(issue_string)
    } catch (error) {
        // eslint-disable-next-line no-console
        console.warn((error as Error).message)
    }
} else {
    // eslint-disable-next-line no-console
    console.error('No branch string provided.')
    process.exit(1)
}