Extract neovim from prebuilt archives for debian hosts

tasks/neovim.yml

@@ -27,14 +27,21 @@
     name: neovim
     global: true
 
-# Note that the "python-lsp-server", "python-lsp-ruff" and "neovim" python
-# packages should be installed to the corresponding virtualenv as well.
 - name: install language servers
   become: true
   package:
     name: '{{ item }}'
     state: present
-  loop: '{{ language_servers }}'
+  loop: '{{ language_servers | map(attribute="package") | list }}'
+  when: ansible_facts['os_family'] == 'Archlinux'
+
+- name: install language servers on debian hosts
+  become: true
+  npm:
+    name: '{{ item }}'
+    global: true
+  loop: '{{ language_servers | map(attribute="package") | list }}'
+  when: ansible_facts['os_family'] == 'Debian'
 
 - name: remove old neovim configuration file
   file:
@@ -141,3 +148,45 @@
         src: 'templates/nvim/lua/indent-blankline.lua.j2',
         dest: '{{ xdg_config_dir }}/nvim/lua/indent-blankline.lua',
       }
+
+- block:
+  - name: register the current version
+    command:
+      argv:
+        - '{{ neovim.install_path }}/bin/nvim'
+        - '--version'
+    register: neovim_stats
+
+  - name: parse the current version
+    set_fact:
+      neovim_installed_version: neovim_stats.stdout_lines[0] | regex_search('(v\d+\.\d+\.\d+)')
+    when: neovim_stats.rc == 0
+
+  - name: download neovim {{ neovim.version }}
+    get_url:
+      url: 'https://github.com/neovim/neovim/releases/download/{{ neovim.version }}/nvim-linux64.tar.gz'
+      dest: /tmp/nvim-linux64.tar.gz
+    when: neovim_stats.rc > 0 or neovim_installed_version != neovim.version
+    register: neovim_download
+
+  - name: extract downloaded neovim version
+    unarchive:
+      src: /tmp/nvim-linux64.tar.gz
+      dest: '{{ neovim.install_path }}'
+      extra_opts:
+        - '--strip-components=1'
+        - '--show-stored-names'
+    when: neovim_download.rc == 0
+
+  - name: set updated PATH variable
+    set_fact:
+      neovim_new_path: '{{ neovim.install_path }}/bin'
+
+  - name: Update PATH to include {{ neovim_new_path }}
+    ansible.builtin.replace:
+      path: '~/.profile'
+      regexp: '^PATH="{{ ansible_env.PATH }}"'
+      replace: 'PATH="{{ ansible_env.PATH }}:{{ neovim_new_path }}"'
+    when: neovim_new_path not in ansible_env.PATH
+
+  when: ansible_facts['os_family'] == 'Debian'