add asset deployment logic

Author: tomy-shen

LICENSE

@@ -15,7 +15,7 @@ The above copyright notice and this permission notice shall be included in all
 copies or substantial portions of the Software.
 
 Additional Modifications Notice:
-This version includes modifications made by Tomy Shen since 2025-10-08.
+This version includes modifications made by Tomy Shen since 2025-10-10.
 The main modification is support for Redmine 6.0 or higher.
 
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

README.md

@@ -23,8 +23,6 @@ $ rake redmine:plugins:migrate RAILS_ENV=production
 ```
 * Restart Redmine
 
-> Due to the update of redmine 6, CSS or javascript probably need to be precompiled after the initial installation. Reference [here](https://www.redmine.org/issues/41754).
-
 ## Screenshots
 
 ![screenshot01](screenshots/lightbox3-attachment-preview.png)

init.rb

@@ -1,31 +1,42 @@
-# redmine_lightbox3/init.rb
-
-require 'redmine'
-require 'fileutils' # <-- 引入文件操作模組
-
-# === 資產複製邏輯：確保靜態檔案存在於 public/plugin_assets ===
-plugin_dir = Rails.root.join('plugins', 'redmine_lightbox3')
-public_dir = Rails.root.join('public', 'plugin_assets', 'redmine_lightbox3')
-
-# 確保目標目錄存在
-FileUtils.mkdir_p(public_dir) unless File.directory?(public_dir.to_s)
-
-# 複製 assets/javascripts, assets/stylesheets, 和 assets/images
-['javascripts', 'stylesheets', 'images'].each do |asset_type|
-  source = plugin_dir.join('app', 'assets', asset_type)
-  target = public_dir.join(asset_type)
-  
-  if File.directory?(source.to_s)
-    # 如果目標子目錄不存在，則執行複製
-    unless File.directory?(target.to_s)
-        # 使用 cp_r 複製整個目錄內容
-        FileUtils.cp_r(source.to_s, public_dir.to_s) 
-    end
-  end
+# frozen_string_literal: true
+
+require 'fileutils'
+
+# --- Asset Deployment Logic with Pure Ruby Pathing ---
+# This version uses pure Ruby methods (`__dir__`) to be immune to Rails' boot sequence issues.
+
+# 1. Define key paths using pure Ruby
+plugin_name = 'redmine_lightbox3'
+
+# THE ONLY FIX IS HERE: `__dir__` itself is the plugin's root directory.
+# `File.expand_path('..', __dir__)` was incorrect as it went up one level.
+plugin_root = __dir__
+
+source_assets = File.join(plugin_root, 'app', 'assets')
+public_dest = File.join(Rails.root.to_s, 'public', 'plugin_assets', plugin_name)
+version_file = File.join(public_dest, 'version.txt')
+
+# 2. Get the "Code Version" by parsing this init.rb file itself.
+code_version = nil
+init_rb_content = File.read(File.join(plugin_root, 'init.rb'))
+if match = init_rb_content.match(/version\s+['"]([^'"]+)['"]/)
+  code_version = match[1]
+end
+
+# 3. Read the version of the assets currently on disk
+public_version = File.exist?(version_file) ? File.read(version_file).strip : nil
+
+# 4. Compare versions and redeploy if they don't match.
+if code_version.to_s != public_version.to_s && !code_version.nil?
+  puts "Redmine Lightbox 3: Version mismatch (code: #{code_version}, public: #{public_version}). Redeploying assets."
+  FileUtils.rm_rf(public_dest)
+  FileUtils.mkdir_p(public_dest)
+  FileUtils.cp_r(File.join(source_assets, '.'), public_dest)
+  File.open(version_file, 'w') { |f| f.write(code_version) }
 end
-# =============================================================
 
 
+# --- Plugin Registration ---
 Redmine::Plugin.register :redmine_lightbox3 do
   name 'Lightbox3 Plugin (Support Redmine 6 or higher)'
   author 'tomy'
@@ -34,17 +45,12 @@
   url 'https://redmine-tw.net'
   author_url 'https://github.com/tomy-shen'
 
-  requires_redmine :version_or_higher => '6.0.0'
+  requires_redmine version_or_higher: '6.0.0'
 
-  # 確保 Hook 檔案被載入
   require_relative 'lib/hooks/view_layouts_base_html_head_hook'
 
-
-  # Rails 7/Redmine 6 兼容性修正：使用 ActiveSupport::Reloader 載入 Patch
   ActiveSupport::Reloader.to_prepare do
     require_relative 'lib/patches/attachments_patch'
-    
-    # 應用 Patch
     unless Attachment.included_modules.include?(Patches::AttachmentsPatch)
       Attachment.send(:include, Patches::AttachmentsPatch)
     end