Geef is a simple Erlang NIF that exposes some of the libgit2 library functions to Erlang.

First you need to install libgit2:

$ git clone git://github.com/libgit2/libgit2.git
$ cd libgit2
$ make
$ make install

Now, if you have Erlang OTP_R13B04 installed, you can compile this NIF to run in it.

$ git clone git://github.com/carlosmn/geef.git
$ cd geef
$ make
$ mix # if you want to build the elixir modules

The API looks basically like this:

{ok, Repo} = geef_repo:open(".").
Workdir = geef_repo:workdir(Repo).
{ok, Blob} = geef_blob:lookup(Repo, geef_oid:parse("abcde...")).

There are wrappers for elixir which make use of some elixir-specific things, like Repository.open!, or Reference.resolve!.

alias Geef.Repository
alias Geef.Reference
repo = Repository.open!(".")
ref = Reference.lookup!(repo. "HEAD") |> Reference.resolve!

Of course, you could also do

ref = Repository.open! "." |> Reference.lookup! "HEAD" |> Reference.resolve!

but then you would leak the repository process.

Fork carlosmn/geef on GitHub, make it awesomer (preferably in a branch named for the topic), send a pull request.

Scott Chacon schacon@gmail.com Carlos Martín Nieto cmn@dwim.me

MIT.