feat: add support for removal of packages from a registryfix/support-removed-packages

This adds support for removal of packages from any given registry.
Currently mason.nvim doesn't support this at all and throws an error
when trying to interact with the registry in any way while having a
removed package installed locally.

This ensures that removed packages are available both in the `:Mason` UI
as well as the public Lua APIs. These "synthesized" packages only
supports uninstallation, and metadata such as licenses, categories,
homepage, etc is not available.

1 files changed, 4 insertions, 2 deletions

diff --git a/lua/mason-registry/init.lua b/lua/mason-registry/init.lua
index 535e6b57..5806c30a 100644
--- a/lua/mason-registry/init.lua
+++ b/lua/mason-registry/init.lua
@@ -49,7 +49,6 @@ function Registry.get_installed_package_names()
             directories[#directories + 1] = entry.name
         end
     end
-    -- TODO: validate that entry is a mason package
     return directories
 end
 
@@ -68,7 +67,10 @@ function Registry.get_all_package_names()
 end
 
 function Registry.get_all_packages()
-    return vim.tbl_map(Registry.get_package, Registry.get_all_package_names())
+    local _ = require "mason-core.functional"
+    local packages =
+        _.uniq_by(_.identity, _.concat(Registry.get_all_package_names(), Registry.get_installed_package_names()))
+    return vim.tbl_map(Registry.get_package, packages)
 end
 
 function Registry.get_all_package_specs()