refactor(updater): simplify plugin snapshot approach

lua/core/utils/updater.lua

@@ -2,21 +2,18 @@ local fn = vim.fn
 local git = require "core.utils.git"
 local options = astronvim.user_plugin_opts(
   "updater",
-  { remote = "origin", branch = "main", channel = "nightly", pin_plugins = true, show_changelog = true }
+  { remote = "origin", branch = "main", channel = "nightly", show_changelog = true }
 )
 
 astronvim.updater = { options = options }
-options.pin_plugins = options.pin_plugins == true and options.channel == "stable" and git.current_version()
-  or options.pin_plugins
-if type(options.pin_plugins) == "string" then
-  local loaded, snapshot_file = pcall(fn.readfile, fn.stdpath "config" .. "/snapshots/" .. options.pin_plugins)
-  local snapshot
+if options.pin_plugins == nil and options.channel == "stable" or options.pin_plugins then
+  local loaded, snapshot = pcall(fn.readfile, fn.stdpath "config" .. "/packer_snapshot")
   if loaded then
-    loaded, snapshot = pcall(fn.json_decode, snapshot_file)
+    loaded, snapshot = pcall(fn.json_decode, snapshot)
     astronvim.updater.snapshot = type(snapshot) == "table" and snapshot or nil
   end
   if not loaded then
-    vim.api.nvim_err_writeln("Error loading snapshot: " .. options.pin_plugins)
+    vim.api.nvim_err_writeln "Error loading packer snapshot"
   end
 end
 

lua/user_example/init.lua

@@ -7,7 +7,7 @@ local config = {
     version = "latest", -- "latest", tag name, or regex search like "v1.*" to only do updates before v2 (STABLE ONLY)
     branch = "main", -- branch name (NIGHTLY ONLY)
     commit = nil, -- commit hash (NIGHTLY ONLY)
-    pin_plugins = true, -- true, false, or a string for a specific AstroNvim snapshot to use (true will only track the current version if channel is "stable")
+    pin_plugins = nil, -- nil, true, false (nil will pin plugins on stable only)
     skip_prompts = false, -- skip prompts about breaking changes
     show_changelog = true, -- show the changelog after performing an update
     -- remotes = { -- easily add new remotes to track