const repo = new Repository('/Users/shiftkey/src/vscode', -1, null, false)
  const allBranches = await getBranches(repo)
  const start =
    allBranches.find(b => b.nameWithoutRemote === 'master') || null

  if (start == null) {
    throw new Error('Unable to find current branch!')
  }

  await checkoutBranch(repo, null, start)

  const status = await getStatusOrThrow(repo)

  if (status.currentBranch == null) {
    throw new Error('Unable to find current branch!')
  }

  const ours =
    allBranches.find(b => b.nameWithoutRemote === status.currentBranch) ||
    null

  if (ours == null) {
    throw new Error('Unable to find ours!')
  }

  const otherBranchesToCompare = allBranches.filter(
    b => b.tip.sha !== ours.tip.sha
  )

  for (const theirs of otherBranchesToCompare) {
    const fileName = `merge-${theirs.nameWithoutRemote}-into-${
      ours.name
    }.txt`.replace('/', '-')

    const mergeBase = await getMergeBase(repo, ours.tip.sha, theirs.tip.sha)

    if (mergeBase === ours.tip.sha) {
      continue
    }

    if (mergeBase === theirs.tip.sha) {
      continue
    }

    const result = await GitProcess.exec(
      ['merge-tree', mergeBase, ours.tip.sha, theirs.tip.sha],
      repo.path,
      { maxBuffer: 100 * 1024 * 1024 }
    )
    const stdout = result.stdout

    if (stdout.indexOf('<<<<<<') === -1) {
      continue
    }

    const relativePath = Path.join(
      __dirname,
      `../../fixtures/merge-parser/vscode/${fileName}`
    )

    await FSE.writeFile(relativePath, stdout)
  }
})