Re: [PATCH] diff-highlight: split code into module

> The diff-so-fancy project is also written in perl, and most
> of its users pipe diffs through both diff-highlight and
> diff-so-fancy. It would be nice if this could be done in a
> single script. So let's pull most of diff-highlight's code
> into its own module which can be used by diff-so-fancy.
>
> In addition, we'll abstract a few basic items like reading
> from stdio so that a script using the module can do more
> processing before or after diff-highlight handles the lines.
> See the README update for more details.
>
> One small downside is that the diff-highlight script must
> now be built using the Makefile. There are ways around this,
> but it quickly gets into perl arcana. Let's go with the
> simple solution. As a bonus, our Makefile now respects the
> PERL_PATH variable if it is set.
>
> Signed-off-by: Jeff King <peff@peff.net>
> ---
> Scott and I discussed this off-list, and this was the least-gross
> solution I came up with.  The plan would be for diff-so-fancy to pull in
> this copy of diff-highlight from git.git and have a wrapper script
> similar to the diff-highlight.perl found here.
>
>  contrib/diff-highlight/.gitignore                  |  2 ++
>  .../{diff-highlight => DiffHighlight.pm}           | 40 +++++++++++++---------
>  contrib/diff-highlight/Makefile                    | 21 ++++++++++--
>  contrib/diff-highlight/README                      | 30 ++++++++++++++++
>  contrib/diff-highlight/diff-highlight.perl         |  8 +++++
>  5 files changed, 82 insertions(+), 19 deletions(-)
>  create mode 100644 contrib/diff-highlight/.gitignore
>  rename contrib/diff-highlight/{diff-highlight => DiffHighlight.pm} (91%)
>  mode change 100755 => 100644
>  create mode 100644 contrib/diff-highlight/diff-highlight.perl