fix(install): fix NPE while installation (#64)

Author: linrongbin16

.github/workflows/ci.yml

@@ -36,14 +36,14 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
           version: latest
           args: --config-path .stylua.toml ./lua
-      - name: Add rxi/json.lua
+      - name: Add json.lua
         if: ${{ github.ref != 'refs/heads/main' }}
         shell: bash
         run: |
           echo "pwd"
           echo $PWD
-          git clone --depth 1 https://github.com/rxi/json.lua.git ~/.json.lua
-          cp ~/.json.lua/json.lua ./lua/colorbox/rxi_json.lua
+          git clone --depth=1 https://github.com/actboy168/json.lua.git ~/.json.lua
+          cp ~/.json.lua/json.lua ./lua/colorbox/actboy168_json.lua
       - name: Auto Commit
         if: ${{ github.ref != 'refs/heads/main' }}
         uses: stefanzweifel/git-auto-commit-action@v4

lua/colorbox.lua

@@ -2,6 +2,8 @@ local logger = require("colorbox.logger")
 local LogLevels = require("colorbox.logger").LogLevels
 local utils = require("colorbox.utils")
 local json = require("colorbox.json")
+local uv = (vim.fn.has("nvim-0.10") > 0 and vim.uv ~= nil) and vim.uv
+    or vim.loop
 
 --- @alias colorbox.Options table<any, any>
 --- @type colorbox.Options
@@ -137,7 +139,9 @@ local function _init()
     local ColorNamesList = require("colorbox.db").get_color_names_list()
     for _, color_name in pairs(ColorNamesList) do
         local spec = ColorNameToColorSpecsMap[color_name]
-        if not _should_filter(color_name, spec) then
+        local stat = uv.fs_stat(spec.full_pack_path)
+        local obj_exist = stat ~= nil
+        if not _should_filter(color_name, spec) and obj_exist then
             table.insert(FilteredColorNamesList, color_name)
         end
     end