From 579d4bd178f4aae76a4f4dc2ea34bf5e8fa6231b Mon Sep 17 00:00:00 2001
From: William Boman <william@redwill.se>
Date: Sat, 22 Apr 2023 19:20:52 +0200
Subject: feat(registry): add .get_all_package_specs() (#1247)

This is a faster method than .get_all_packages() due to the fact that it only loads package specifications without
instantiating mason-core.package instances. Useful for situations where one only needs to read spec data.
---
 doc/mason.txt                          | 12 +++++++--
 lua/mason-registry/init.lua            | 10 +++++++
 lua/mason-registry/sources/github.lua  | 49 +++++++++++++++++++++-------------
 lua/mason-registry/sources/lua.lua     |  9 +++++++
 tests/mason-registry/registry_spec.lua |  4 +++
 5 files changed, 63 insertions(+), 21 deletions(-)

diff --git a/doc/mason.txt b/doc/mason.txt
index d29abaf4..c7fc564b 100644
--- a/doc/mason.txt
+++ b/doc/mason.txt
@@ -492,12 +492,20 @@ get_all_packages()
 
                                       *mason-registry.get_all_package_names()*
 get_all_package_names()
-    Returns all package names. This is a fast function that doesn't load any
-    extra modules.
+    Returns all package names. This is a faster function than
+    |mason-registry.get_all_packages()| because it loads fewer modules.
 
     Returns:
         string[]
 
+                                      *mason-registry.get_all_package_specs()*
+get_all_package_specs()
+    Returns all package specifications. This is a faster function than
+    |mason-registry.get_all_packages()| because it loads fewer modules.
+
+    Returns:
+        (PackageSpec | RegistryPackageSpec)[]
+
                                                      *mason-registry.update()*
 update({callback})
     Updates all managed registries.
diff --git a/lua/mason-registry/init.lua b/lua/mason-registry/init.lua
index e798ac92..a407ad4f 100644
--- a/lua/mason-registry/init.lua
+++ b/lua/mason-registry/init.lua
@@ -10,6 +10,7 @@ local sources = require "mason-registry.sources"
 ---@field id string
 ---@field get_package fun(self: RegistrySource, pkg_name: string): Package?
 ---@field get_all_package_names fun(self: RegistrySource): string[]
+---@field get_all_package_specs fun(self: RegistrySource): PackageSpec[] | RegistryPackageSpec[]
 ---@field get_display_name fun(self: RegistrySource): string
 ---@field is_installed fun(self: RegistrySource): boolean
 ---@field get_installer fun(self: RegistrySource): Optional # Optional<async fun (): Result>
@@ -119,6 +120,15 @@ function M.get_all_packages()
     return get_packages(M.get_all_package_names())
 end
 
+---@return (RegistryPackageSpec | PackageSpec)[]
+function M.get_all_package_specs()
+    local specs = {}
+    for source in sources.iter() do
+        vim.list_extend(specs, source:get_all_package_specs())
+    end
+    return _.uniq_by(_.prop "name", specs)
+end
+
 local STATE_FILE = path.concat {
     vim.fn.stdpath((vim.fn.has "nvim-0.8.0" == 1) and "state" or "cache"),
     "mason-registry-update",
diff --git a/lua/mason-registry/sources/github.lua b/lua/mason-registry/sources/github.lua
index ec758144..2e9c5210 100644
--- a/lua/mason-registry/sources/github.lua
+++ b/lua/mason-registry/sources/github.lua
@@ -6,11 +6,9 @@ local fetch = require "mason-core.fetch"
 local fs = require "mason-core.fs"
 local log = require "mason-core.log"
 local path = require "mason-core.path"
-local platform = require "mason-core.platform"
 local providers = require "mason-core.providers"
 local registry_installer = require "mason-core.installer.registry"
 local settings = require "mason.settings"
-local spawn = require "mason-core.spawn"
 
 -- Parse sha256sum text output to a table<filename: string, sha256sum: string> structure
 local parse_checksums = _.compose(_.from_pairs, _.map(_.compose(_.reverse, _.split "  ")), _.split "\n", _.trim)
@@ -48,43 +46,56 @@ function GitHubRegistrySource:is_installed()
     return fs.sync.file_exists(self.data_file) and fs.sync.file_exists(self.info_file)
 end
 
+---@return RegistryPackageSpec[]
+function GitHubRegistrySource:get_all_package_specs()
+