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'

templates/nvim/lua/lsp.lua.j2

@@ -23,8 +23,15 @@ end
 
 --enable some language servers with the additional completion capabilities
 --offered by nvim-cmp
+-- TODO: use `.join`?
 local servers = {
-  'ansiblels', 'yamlls', 'cssls', 'jsonls', 'tsserver', 'bashls', 'lua_ls'
+  {% for item in language_servers %}
+  {% if item.auto_setup and not loop.last %}
+  '{{ item.server_name }}',
+  {% elif item.auto_setup %}
+  '{{ item.server_name }}'
+  {% endif %}
+  {% endfor %}
 }
 
 --add additional capabilities supported by nvim-cmp
@@ -42,6 +49,7 @@ end
 
 local util = require('lspconfig/util')
 
+{% if ansible_facts.os_family == 'Archlinux' %}
 local python_root_dir = function(fname)
   return util.root_pattern('.git', 'setup.cfg', 'requirements')(fname) or
     util.path.dirname(fname)
@@ -72,12 +80,14 @@ nvim_lsp.pyright.setup({
   root_dir = python_root_dir
 })
 
+
 nvim_lsp.html.setup({
   on_attach = on_attach,
   capabilities = capabilities,
   filetypes = { 'html', 'htmldjango' },
 })
 
+{% endif %}
 local cmp = require('cmp')
 local luasnip = require('luasnip')
 

vars/archlinux.yml

@@ -32,15 +32,49 @@ aur_build_dir: '/usr/local/src'
 python_build_dir: '/usr/local/src'
 python_install_dir: '/opt'
 
+# Note that the "python-lsp-server", "python-lsp-ruff" and "neovim" python
+# packages should be installed to the corresponding virtualenv as well.
 language_servers:
-  - ansible-language-server
-  - yaml-language-server
-  - typescript-language-server
-  - vscode-html-languageserver
-  - vscode-json-languageserver
-  - vscode-css-languageserver
-  - bash-language-server
-  - lua-language-server
+  - {
+      package: ansible-language-server,
+      server_name: 'ansiblels',
+      auto_setup: true
+    }
+  - {
+      package: yaml-language-server,
+      server_name: 'yamlls',
+      auto_setup: true
+    }
+  - {
+      package: typescript-language-server,
+      server_name: 'tsserver',
+      auto_setup: true
+    }
+  - {
+      package: vscode-html-languageserver,
+      server_name: 'html',
+      auto_setup: false
+    }
+  - {
+      package: vscode-json-languageserver,
+      server_name: 'jsonls',
+      auto_setup: true
+    }
+  - {
+      package: vscode-css-languageserver,
+      server_name: 'cssls',
+      auto_setup: true
+    }
+  - {
+      package: bash-language-server,
+      server_name: 'bashls',
+      auto_setup: true
+    }
+  - {
+      package: lua-language-server,
+      server_name: 'lua_ls',
+      auto_setup: true
+    }
 
 python_download_url: 'https://www.python.org/ftp/python'
 python_versions:

vars/debian.yml

@@ -5,18 +5,29 @@ packages:
   - python3
   - git
   - vim
-  - neovim
   - npm
   - tree-sitter
   - ripgrep
 
-# TODO: investigate available lsps
+neovim:
+  version: 'v0.10.1'
+  install_path: '/opt/nvim'
+  download_checksum: 4867de01a17f6083f902f8aa5215b40b0ed3a36e83cc0293de3f11708f1f9793
+
+# TODO: add lua language server, see https://github.com/LuaLS/lua-language-server?
 language_servers:
-  - ansible-language-server
-  - yaml-language-server
-  - typescript-language-server
-  - vscode-html-languageserver
-  - vscode-json-languageserver
-  - vscode-css-languageserver
-  - bash-language-server
-  - lua-language-server
+  - {
+      package: '@ansible/ansible-language-server',
+      server_name: 'ansiblels',
+      auto_setup: true
+    }
+  - {
+      package: yaml-language-server,
+      server_name: 'yamlls',
+      auto_setup: true
+    }
+  - {
+      package: bash-language-server,
+      server_name: 'bashls',
+      auto_setup: true
+    }