---

- name: ensure build work dir exists
  become: yes
  file:
    path: "{{build_work_dir}}"
    state: "directory"
    owner: "{{ansible_user}}"
    group: "{{ansible_user}}"
    mode: "0755"

- name: install golang
  become: yes
  apt: name="golang-1.21-go"

- name: link go bin
  become: yes
  file:
    src: "/usr/lib/go-1.21/bin/go"
    dest: "/usr/bin/go"
    state: "link"
    mode: "0755"

- name: git checkout lnurld
  git:
    repo: "{{lnurld_git}}"
    dest: "{{lnurld_build_dir}}"
    version: "{{lnurld_version}}"

- name: check if build exists
  stat:
    path: "{{lnurld_srv_dir}}/lnurld-{{lnurld_version}}.tar.gz"
  register: build_file

- name: build
  command: "go build"
  args:
    chdir: "{{lnurld_build_dir}}"
  # Keep the Go caches on build_work_dir (the SSD) instead of the SD card.
  environment:
    GOPATH: "{{build_work_dir}}/.go"
    GOCACHE: "{{build_work_dir}}/.go-cache"
    GOMODCACHE: "{{build_work_dir}}/.go-mod"
  when: not build_file.stat.exists

- name: create build server dir
  become: yes
  file:
    path: "{{lnurld_srv_dir}}"
    mode: "0755"
    state: "directory"

- name: create gz archive of lnurld
  become: yes
  archive:
    path: "{{lnurld_build_dir}}/lnurld"
    dest: "{{lnurld_srv_dir}}/lnurld-{{lnurld_version}}.tar.gz"
    format: "gz"
    # force a real tar for the single binary; the module otherwise gzips a lone
    # file into a bare .gz that the server's unarchive can't extract.
    force_archive: true
  when: not build_file.stat.exists