Merge pull request #7 from ocurrent/opam-2.2

Include opam 2.2 in the base image

roles/base-image/tasks/main.yml

@@ -66,11 +66,19 @@
       echo "OPAMCONFIRMLEVEL=unsafe-yes; export OPAMCONFIRMLEVEL" >> .profile
       git config --global user.email "[email protected]"
       git config --global user.name "Your Name"
-      git clone https://github.com/ocaml/opam /home/opam/opam && cd /home/opam/opam && cp -P -R -p . ../opam-sources && git checkout 62ad0c21768e28532466572dbaa066913a6c050d && git remote add mtelvers https://github.com/mtelvers/opam && git fetch mtelvers && git cherry-pick bfa86fcc5187bf71080d5f934ff147cdbb64a9e1 && env MAKE='gmake -j' shell/bootstrap-ocaml.sh && gmake -C src_ext cache-archives
-      cd /home/opam/opam-sources && cp -P -R -p . ../opam-build-2.0 && cd ../opam-build-2.0 && git checkout 2.0 && ln -s ../opam/src_ext/archives src_ext/archives && env PATH="/home/opam/opam/bootstrap/ocaml/bin:$PATH" ./configure --enable-cold-check && env PATH="/home/opam/opam/bootstrap/ocaml/bin:$PATH" gmake lib-ext all && mkdir -p /usr/local/bin && sudo cp /home/opam/opam-build-2.0/opam /usr/local/bin/opam-2.0 && sudo chmod a+x /usr/local/bin/opam-2.0 && rm -rf /home/opam/opam-build-2.0
-      cd /home/opam/opam-sources && cp -P -R -p . ../opam-build-2.1 && cd ../opam-build-2.1 && git checkout 2.1 && ln -s ../opam/src_ext/archives src_ext/archives && env PATH="/home/opam/opam/bootstrap/ocaml/bin:$PATH" ./configure --enable-cold-check --with-0install-solver && env PATH="/home/opam/opam/bootstrap/ocaml/bin:$PATH" gmake lib-ext all && mkdir -p /usr/local/bin && sudo cp /home/opam/opam-build-2.1/opam /usr/local/bin/opam-2.1 && sudo chmod a+x /usr/local/bin/opam-2.1 && rm -rf /home/opam/opam-build-2.1
-      cd /home/opam/opam-sources && cp -P -R -p . ../opam-build-master && cd ../opam-build-master && git checkout master && ln -s ../opam/src_ext/archives src_ext/archives && env PATH="/home/opam/opam/bootstrap/ocaml/bin:$PATH" ./configure --enable-cold-check --with-0install-solver --with-vendored-deps && env PATH="/home/opam/opam/bootstrap/ocaml/bin:$PATH" gmake lib-ext all && mkdir -p /usr/local/bin && sudo cp /home/opam/opam-build-master/opam /usr/local/bin/opam-dev && sudo chmod a+x /usr/local/bin/opam-master && rm -rf /home/opam/opam-build-master
-      sudo ln /usr/local/bin/opam-2.1 /usr/local/bin/opam
+      curl -s https://raw.githubusercontent.com/ocaml/opam/master/shell/install.sh -o install.sh
+      chmod +x install.sh
+      for version in 2.1.5 2.2.0 dev ; do
+        if [ "$version" = "dev" ] ; then
+          ./install.sh --dev --download-only
+        else
+          ./install.sh --version $version --download-only
+        fi
+        chmod a+x opam-*
+        sudo mv opam-* /usr/local/bin/opam-"${version%.*}"
+      done
+      rm install.sh
+      sudo ln -f /usr/local/bin/opam-2.1 /usr/local/bin/opam
       cd /home/opam
       git clone https://github.com/ocaml/opam-repository.git
       opam init -k git -a ./opam-repository -c {{ version }} -y