Add composer to phpactor

This allows to use full potential of phpactor.
We wrap the binary to promote PHP and Composer.

We ensure that the neovim plugin is not calling PHP, but only the
wrapper, which ensures that proper PHP version will be used.

home/programs/neovim.nix

@@ -133,6 +133,17 @@ let
       url = "https://daniel-siepmann.de/fileadmin/${pname}-${version}.tar.gz";
       sha256 = "sha256-W7aSoQ7NclxaAnOx8mkYxOK9zbe+QQXkIM9+A8kCJHQ=";
     };
+
+    nativeBuildInputs = [
+      pkgs.makeWrapper
+    ];
+
+    postInstall = ''
+      rm -rf tests requirements.txt phpunit.xml.dist phpstan* Makefile phpbench.json .github .git build
+      wrapProgram $out/bin/phpactor \
+        --prefix PATH : ${pkgs.lib.strings.makeBinPath [ pkgs.php74 ]} \
+        --prefix PATH : ${pkgs.lib.strings.makeBinPath [ pkgs.php74Packages.composer ]}
+    '';
   };
 
   neoterm = pkgs.vimUtils.buildVimPluginFrom2Nix {
@@ -291,7 +302,8 @@ in {
       plugin = phpactor;
       config = ''
         let g:phpactorOmniError = v:true
-        let g:phpactorPhpBin = "${pkgs.php74}/bin/php"
+        " Make empty, as we have a full blown wrapper
+        let g:phpactorPhpBin = ""
       '';
     }
 
@@ -303,7 +315,6 @@ in {
       config = ''
         require('lspconfig').phpactor.setup({
           cmd = {
-            '${pkgs.php74}/bin/php',
             '${phpactor}/bin/phpactor',
             'language-server',
           },