[Fix] correctly expand root in themes_folders and font_folders (#175)

* fix: correctly expand root in config folders

* small readme fix

Author: DerTimonius

README.md

@@ -275,31 +275,31 @@ Above code will generate a solid white background.
 CodeSnap.nvim use gradient background by default, you can specify the gradient colors by setting `background.stops` to a table of colors, for example:
 
 ```lua
-"background": {
-    "start": {
-      "x": 0,
-      "y": 0
+background = {
+    start = {
+      x = 0,
+      y = 0
     },
-    "end": {
-      "x": "max",
-      "y": "max"
+    end = {
+      x = "max",
+      y = "max"
     },
-    "stops": [
+    stops = [
       {
-        "position": 0,
-        "color": "#EBECB2"
+        position = 0,
+        color = "#EBECB2"
       },
       {
-        "position": 0.28,
-        "color": "#F3B0F7"
+        position = 0.28,
+        color = "#F3B0F7"
       },
       {
-        "position": 0.73,
-        "color": "#92B5F0"
+        position = 0.73,
+        color = "#92B5F0"
       },
       {
-        "position": 0.94,
-        "color": "#AEF0F8"
+        position = 0.94,
+        color = "#AEF0F8"
       }
     ]
 }

lua/codesnap/init.lua

@@ -3,6 +3,7 @@ local table_utils = require("codesnap.utils.table")
 local module = require("codesnap.module")
 local config_module = require("codesnap.config")
 local modal = require("codesnap.modal")
+local path = require("codesnap.path")
 
 -- Prepare the path of the Rust module
 -- Try to fetch pre-built library first, then fallback to development build
@@ -15,6 +16,9 @@ local main = {
 
 function main.setup(config)
   static.config = table_utils.merge_config(static.config, config == nil and {} or config)
+  if static.config.snapshot_config then
+    path.expand_paths_in_config(static.config.snapshot_config)
+  end
 end
 
 -- Save snapshot to specified save_path

lua/codesnap/path.lua

@@ -0,0 +1,25 @@
+local path_module = {}
+
+local function expand_path(path)
+  if type(path) ~= "string" then
+    return path
+  end
+  if path:sub(1, 1) == "~" then
+    local home = os.getenv("HOME") or os.getenv("USERPROFILE") or ""
+    return home .. path:sub(2)
+  end
+  return path
+end
+
+function path_module.expand_paths_in_config(config)
+  if config.themes_folders and #config.themes_folders > 0 then
+    config.themes_folders = vim.tbl_map(expand_path, config.themes_folders)
+  end
+
+  if config.fonts_folders and #config.fonts_folders > 0 then
+    config.fonts_folders = vim.tbl_map(expand_path, config.fonts_folders)
+  end
+  return config
+end
+
+return path_module

lua/codesnap/utils/table.lua

@@ -35,6 +35,11 @@ function table_utils.merge_config(t1, t2)
       t1[k] = t2[k]
     end
   end
+  for k, v in pairs(t2) do
+    if t1[k] == nil and v ~= nil then
+      t1[k] = v
+    end
+  end
 
   return t1
 end