@commitlint/read/lib/get-edit-commit.js

Read commit messages from a specified range or last edit

import toplevel from "@commitlint/top-level";
import fs from "fs/promises";
import { getEditFilePath } from "./get-edit-file-path.js";
// Get recently edited commit message
export async function getEditCommit(cwd, edit) {
    const top = await toplevel(cwd);
    if (typeof top !== "string") {
        throw new TypeError(`Could not find git root from ${cwd}`);
    }
    const editFilePath = await getEditFilePath(top, edit);
    let editFile;
    try {
        editFile = await fs.readFile(editFilePath);
    }
    catch (err) {
        if (err.code === "ENOENT") {
            const hint = typeof edit === "string"
                ? `Check that the path passed to --edit exists and is readable.`
                : `--edit reads the message prepared by 'git commit' and is intended to run from a commit-msg hook. If you want to lint existing history, use --from / --to instead; to lint a specific file, pass its path as --edit <file>.`;
            throw new Error(`No commit message file found at ${editFilePath}. ${hint}`, { cause: err });
        }
        throw err;
    }
    return [`${editFile.toString("utf-8")}\n`];
}
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