From 654788560e2745bcc8103037446dcbba31944205 Mon Sep 17 00:00:00 2001
From: Matt Sturgeon <matt@sturgeon.me.uk>
Date: Thu, 12 Sep 2024 11:13:32 +0100
Subject: [PATCH] nixvimInfo: access `package.default` using `tryEval`

Allow getting `meta.homepage` from the default package to fail
gracefully when the nixpkgs channel lock is out-of-sync with ours.
---
 lib/neovim-plugin.nix                    | 8 +++++---
 lib/vim-plugin.nix                       | 6 ++++--
 plugins/lsp/language-servers/_mk-lsp.nix | 5 ++++-
 3 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/lib/neovim-plugin.nix b/lib/neovim-plugin.nix
index fce2c0a7fe..a01f3b9dca 100644
--- a/lib/neovim-plugin.nix
+++ b/lib/neovim-plugin.nix
@@ -49,6 +49,7 @@
     }@args:
     let
       namespace = if isColorscheme then "colorschemes" else "plugins";
+      extraConfigNamespace = if isColorscheme then "extraConfigLuaPre" else "extraConfigLua";
 
       module =
         {
@@ -60,14 +61,15 @@
         let
           cfg = config.${namespace}.${name};
           opt = options.${namespace}.${name};
-          extraConfigNamespace = if isColorscheme then "extraConfigLuaPre" else "extraConfigLua";
+          # `package.default` will throw "not found in pkgs" if the nixpkgs channel is mismatched
+          pkg = (builtins.tryEval opt.package.default).value;
+          url = args.url or pkg.meta.homepage or null;
         in
         {
           meta = {
             inherit maintainers;
             nixvimInfo = {
-              inherit description;
-              url = args.url or opt.package.default.meta.homepage;
+              inherit url description;
               path = [
                 namespace
                 name
diff --git a/lib/vim-plugin.nix b/lib/vim-plugin.nix
index c7c9406d69..f7f3dc40c7 100644
--- a/lib/vim-plugin.nix
+++ b/lib/vim-plugin.nix
@@ -61,13 +61,15 @@
         let
           cfg = config.${namespace}.${name};
           opt = options.${namespace}.${name};
+          # `package.default` will throw "not found in pkgs" if the nixpkgs channel is mismatched
+          pkg = (builtins.tryEval opt.package.default).value;
+          url = args.url or pkg.meta.homepage or null;
         in
         {
           meta = {
             inherit maintainers;
             nixvimInfo = {
-              inherit description;
-              url = args.url or opt.package.default.meta.homepage;
+              inherit url description;
               path = [
                 namespace
                 name
diff --git a/plugins/lsp/language-servers/_mk-lsp.nix b/plugins/lsp/language-servers/_mk-lsp.nix
index 8d1df8a8fd..ad9bcaf803 100644
--- a/plugins/lsp/language-servers/_mk-lsp.nix
+++ b/plugins/lsp/language-servers/_mk-lsp.nix
@@ -30,11 +30,14 @@ with lib;
 let
   cfg = config.plugins.lsp.servers.${name};
   opt = options.plugins.lsp.servers.${name};
+  # `package.default` will throw "not found in pkgs" if the nixpkgs channel is mismatched
+  pkg = (builtins.tryEval opt.package.default).value;
+  url = args.url or pkg.meta.homepage or null;
 in
 {
   meta.nixvimInfo = {
     # TODO: description
-    url = args.url or opt.package.default.meta.homepage or null;
+    inherit url;
     path = [
       "plugins"
       "lsp"