install cli53

I don't know if this is the best way to handle building go packages.
Basically the idea is to treat GOPATH like python virtualenvs. A
different one for each thing we install. I'm open to other ideas (or
just moving the root to someplace other than /usr/local/go).

playbook.yml

@@ -50,6 +50,7 @@
     - { role: formd, tags: ['formd'] }
     - { role: postgresql, tags: ['postgresql'] }
     - { role: calibre, tags: ['calibre'] }
+    - { role: cli53, tags: ['cli53'] }
   vars_prompt:
     - name: user_password
       prompt: "Enter desired user password"

roles/cli53/meta/main.yml

@@ -0,0 +1,3 @@
+---
+dependencies:
+  - { role: golang }

roles/cli53/tasks/main.yml

@@ -0,0 +1,24 @@
+---
+- name: Download cli53
+  command: go get github.com/barnybug/cli53
+           creates=/usr/local/go/cli53
+  environment:
+    GO15VENDOREXPERIMENT: 1
+    GOPATH: /usr/local/go/cli53
+  become: yes
+  become_user: "{{ user.name }}"
+
+- name: Make cli53
+  command: make install
+           chdir=/usr/local/go/cli53/src/github.com/barnybug/cli53
+           creates=/usr/local/go/cli53/bin/cli53
+  environment:
+    GO15VENDOREXPERIMENT: 1
+    GOPATH: /usr/local/go/cli53
+  become: yes
+  become_user: "{{ user.name }}"
+
+- name: Link cli53 to bin
+  file: src=/usr/local/go/cli53/bin/cli53
+        dest=/usr/local/bin/cli53
+        state=link

roles/golang/tasks/main.yml

@@ -0,0 +1,12 @@
+---
+- name: Install go
+  pacman: name=go state=present
+
+- name: Create system go group
+  group: name=golang state=present
+
+- name: Add user to system golang group
+  user: name={{ user.name }} groups=golang append=yes
+
+- name: Create system go dir
+  file: path=/usr/local/go state=directory group=golang mode=0775