Refactor checkPlugins using lib.throwIf

Author: sestrella

flake.nix

@@ -7,6 +7,7 @@
     in
     {
       lib.packagesFromVersionsFile =
+
         { versionsFile
         , system ? builtins.currentSystem
         , plugins ? { }
@@ -29,32 +30,34 @@
               let
                 hasPlugin = builtins.hasAttr name plugins;
               in
-              if skipMissingPlugins
-              then builtins.traceVerbose (if hasPlugin then "Plugin ${name} found" else "Skipping plugin ${name}") hasPlugin
-              else hasPlugin || throw ''
-                No plugin found for "${name}", try adding the missing plugin:
+              lib.throwIf (!skipMissingPlugins && !hasPlugin)
+                ''
+                  No plugin found for "${name}", try adding the missing plugin:
 
-                ```
-                asdf2nix.lib.packagesFromToolVersions = {
-                  plugins = {
-                    ${name} = asdf-${name}.lib.packageFromVersion;
+                  ```
+                  asdf2nix.lib.packagesFromToolVersions = {
+                    plugins = {
+                      ${name} = asdf-${name}.lib.packageFromVersion;
+                      ...
+                    };
                     ...
                   };
-                  ...
-                };
-                ```
+                  ```
 
-                Or enable `skipMissingPlugins` to skip this error:
+                  Or enable `skipMissingPlugins` to skip this error:
 
-                ```
-                asdf2nix.lib.packagesFromToolVersions = {
-                  plugins = { ... };
-                  skipMissingPlugins = true;
-                  ...
-                };
-                ```
-              '');
-          findPackage = plugin: version: plugins.${plugin} { inherit system version; };
+                  ```
+                  asdf2nix.lib.packagesFromToolVersions = {
+                    plugins = { ... };
+                    skipMissingPlugins = true;
+                    ...
+                  };
+                  ```
+                ''
+                hasPlugin);
+          findPackage = plugin: version: plugins.${plugin} {
+            inherit system version;
+          };
         in
         builtins.mapAttrs findPackage
           (builtins.listToAttrs