add fish config

fish/add-on.fish

@@ -1,5 +1,49 @@
 fish_add_path ~/.flinty/bin
 
+# 设置欢迎语
+set -g fish_greeting ""
+
+function fish_greeting
+    # 1. 打印欢迎头部
+    set_color -o cyan
+    echo "Welcome back, $USER!"
+    
+    # 修改点：使用 env TZ="Etc/GMT+8" 来强制输出 UTC-8 时间
+    set -l current_time (env TZ="Etc/GMT+8" date "+%Y-%m-%d %H:%M:%S")
+    echo "Current Time (UTC-8): $current_time"
+    
+    set_color normal
+    echo "----------------------------------------"
+
+    # 2. 调用 fastfetch/neofetch 输出硬件信息
+    if type -q fastfetch
+        fastfetch --structure CPU:Memory:Disk:GPU --color cyan
+    else if type -q neofetch
+        neofetch --disable underline title separator \
+                 --cpu_temp off --gpu_type all --mem_unit mib \
+                 --cpu --memory --disk --gpu
+    end
+
+    echo "----------------------------------------"
+
+    # 3. 检查包管理器逻辑
+    set -l pkg_manager ""
+    if type -q oma
+        set pkg_manager (set_color green)"oma"(set_color normal)
+    else if type -q apt
+        set pkg_manager "apt"
+    else if type -q pacman
+        set pkg_manager "pacman"
+    else if type -q brew
+        set pkg_manager "Homebrew"
+    else
+        set pkg_manager "Default System PM"
+    end
+
+    echo "Package Manager: $pkg_manager"
+    echo ""
+end
+
 ## 替换 ls 默认行为
 function ls --description 'alias ls to eza if possible'
     # 1. 优先使用系统安装的 eza (PATH 里的)