---
- name: create gopath directory
  file:
    state: directory
    mode: 'u=rwx,go=rx'
    dest: '{{ golang_gopath }}'

- name: create download directory
  file:
    state: directory
    mode: 'u=rwx,go=rx'
    dest: '{{ golang_download_dir }}'

- name: Register the current Go version (if any)
  command: /usr/local/go/bin/go version
  ignore_errors: yes
  register: go_version
  changed_when: false

- name: Remove old installation of Go
  become: yes
  file:
    path: /usr/local/go
    state: absent
  when: go_version is failed or go_version.stdout != go_version_target

- name: download Go language SDK
  get_url:
    url: '{{ golang_mirror }}/{{ golang_redis_filename }}'
    dest: '{{ golang_download_dir }}/{{ golang_redis_filename }}'
    mode: 'u=rw,go=r'

- name: create Go language SDK installation directory
  become: yes
  file:
    state: directory
    owner: root
    group: root
    mode: 'u=rwx,go=rx'
    dest: '{{ golang_install_dir }}'

- name: install Go language SDK
  become: yes
  unarchive:
    src: '{{ golang_download_dir }}/{{ golang_redis_filename }}'
    remote_src: yes
    extra_opts: '--strip-components=1'
    dest: '{{ golang_install_dir }}'
    owner: root
    group: root
    creates: '{{ golang_install_dir }}/bin'

# Set Go language SDK environment variables
- name: make sure /etc/profile.d exists
  become: yes
  file:
    path: /etc/profile.d
    state: directory
    owner: root
    group: root
    mode: 'u=rwx,go=rx'

- name: export Go language SDK environment variables
  become: yes
  template:
    src: golang.sh.j2
    dest: /etc/profile.d/golang.sh
    owner: root
    group: root
    mode: 'u=rw,go=r'

- name: Export GOROOT for root
  become: yes
  lineinfile:
    path: ~/.bashrc
    line: export GOROOT='{{ golang_install_dir }}'
    insertafter: last

- name: Add GOROOT to PATH for root
  become: yes
  lineinfile:
    dest: ~/.bashrc
    line: export PATH=$PATH:$GOROOT/bin
    insertafter: last

- name: Export GOPATH for root
  become: yes
  lineinfile:
    dest: ~/.bashrc
    line: export GOPATH='{{ golang_gopath }}'
    insertafter: last

- name: Add GOPATH to PATH for root
  become: yes
  lineinfile:
    dest: ~/.bashrc
    line: export PATH=$PATH:$GOPATH/bin
    insertafter: last

- name: Export GOROOT
  lineinfile:
    dest: ~/.bashrc
    line: export GOROOT='{{ golang_install_dir }}'
    insertafter: last

- name: Add GOROOT to PATH
  lineinfile:
    dest: ~/.bashrc
    line: export PATH=$PATH:$GOROOT/bin
    insertafter: last

- name: Export GOPATH
  lineinfile:
    dest: ~/.bashrc
    line: export GOPATH='{{ golang_gopath }}'
    insertafter: last

- name: Add GOPATH to PATH
  lineinfile:
    dest: ~/.bashrc
    line: export PATH=$PATH:$GOPATH/bin
    insertafter: last