Bug with directory symlinks in git

[baxelrod-bdai]

If the repo has a symlink to a directory which is checked into git, this tool crashes when the -g flag is used. Here is a minimal example to reproduce:

mkdir foo
ln -s foo bar
github-codeowners audit        # works
github-codeowners audit -g     # works
git add foo bar
git commit
github-codeowners audit        # works
github-codeowners audit -g     # FAILS

The error is:

failed to read lines from file bar [Error: EISDIR: illegal operation on a directory, read] {
  errno: -21,
  code: 'EISDIR',
  syscall: 'read'
}
failed to run audit command [Error: EISDIR: illegal operation on a directory, read] {
  errno: -21,
  code: 'EISDIR',
  syscall: 'read'
}

[baxelrod-bdai]

FYI, interestingly there is no issue with symlinked files. Only directories seem to be an issue:

touch foo                      # NOTE: This is a `touch` instead of `mkdir`
ln -s foo bar
git add foo bar
git commit
github-codeowners audit        # works
github-codeowners audit -g     # works