## Get an OPAM image. The tag can be changed by the `--build-arg`
## argument to the `docker build` command line. The full image name
## can also be changed by the same mean.

ARG tag=latest
ARG image=ocaml/opam2:$tag
FROM $image
MAINTAINER Yann Regis-Gianas

## Choose the right version of the OPAM switch. By default, we use the
## one coming from the dist image. But one can specify a specific
## switch with the `--build-arg`.

ARG switch=
RUN [ -z "$switch" ] || opam switch create "$switch"

## Install dependencies. `opam depext` installs (in a distribution
## independant way) first the non-opam dependencies that are required
## and then the OPAM packages.

RUN opam depext -i menhir yojson ppx_deriving_yojson visitors

## Work in /home/opam/morbig, copy all the file there with the right
## owner and group.

WORKDIR /home/opam/morbig
ADD . .
RUN sudo chown -R opam .

## Build Morbig

RUN eval $(opam env) && make

## Set up the entry point of this Dockerfile to Morbig's binary that
## has just been built.

ENTRYPOINT [ "/home/opam/morbig/bin/morbig" ]