add archlinux installation methods

tasks/pkgs/neovim.yml

@@ -10,19 +10,47 @@
   ansible.builtin.set_fact:
     neovim:
       methods:
-        - source
-        - system
-        - appimage
-        - archive
+        default: [system, source, appimage, archive]
+      pkgname:
+        default: neovim
+      build_deps:
+        Archlinux:
+          - base-devel
+          - ninja
+          - curl
+        RedHat:
+          - curl
+          - gcc
+          - gettext
+          - glibc-gconv-extra
+          - make
+          - ninja-build
+        Debian:
+          - build-essential
+          - curl
+          - gettext
+          - ninja-build
+        Darwin:
+          - curl
+          - gettext
+          - ninja
+        Alpine:
+          - build-base
+          - coreutils
+          - curl
+          - gettext-dev
+
+- name: Finalise neovim default facts
+  ansible.builtin.set_fact:
+    neovim:
+      methods: "{{ neovim.methods[os_family] | neovim.methods.default }}"
       git_repo: https://github.com/neovim/neovim
       appimage:
         base_url: https://github.com/neovim/neovim/releases/download
+      pkg_deps:
+        - cmake
       version: v0.12.1
-      pkgname:
-        RedHat: neovim
-        Debian: neovim
-        Darwin: neovim
-        FreeBSD: neovim
+      pkgname: "{{ neovim.pkgname[os_family] | neovim.pkgname.default }}"
       build_files:
         - to: lib64/nvim
         - to: bin/nvim
@@ -33,32 +61,7 @@
       build_pkgdeps:
         - cmake
         - git
-      build_deps:
-        RedHat:
-          - cmake
-          - curl
-          - gcc
-          - gettext
-          - glibc-gconv-extra
-          - make
-          - ninja-build
-        Debian:
-          - build-essential
-          - cmake
-          - curl
-          - gettext
-          - ninja-build
-        Darwin:
-          - cmake
-          - curl
-          - gettext
-          - ninja
-        Alpine:
-          - build-base
-          - cmake
-          - coreutils
-          - curl
-          - gettext-dev
+      build_deps: "{{ neovim.build_deps[os_family] | neovim.build_deps.default }}"
 # }}}
 - name: Configure neovim
   when: