axios-axios/bin/repo.js

import util from 'util';
import cp from 'child_process';

export const exec = util.promisify(cp.exec);

export const getBlobSize = async (filepath, sha = 'HEAD') => {
  const size = (await exec(`git cat-file -s ${sha}:${filepath}`)).stdout;

  return size ? +size : 0;
};

export const getBlobHistory = async (filepath, maxCount = 5) => {
  const log = (
    await exec(
      `git log --max-count=${maxCount} --no-walk --tags=v* --oneline --format=%H%d -- ${filepath}`
    )
  ).stdout;

  const commits = [];

  let match;

  const regexp = /^(\w+) \(tag: (v?[.\d]+)\)$/gm;

  while ((match = regexp.exec(log))) {
    commits.push({
      sha: match[1],
      tag: match[2],
      size: await getBlobSize(filepath, match[1]),
    });
  }

  return commits;
};

export const getTags = async (pattern = 'v*', sort = '-v:refname') => {
  const log = (await exec(`git tag -l ${pattern} --sort=${sort}`)).stdout;

  return log.split(/\r?\n/);
};