feat(zsh): load user config after zshrc

Load .zsh_user once before the first prompt and remove legacy direct source lines during updates. Disable Clash proxy environment variables in the default user configuration.

configure_priv.sh

@@ -187,17 +187,6 @@ configure_zsh() {
             fi
         fi
 
-        # 如果 ~/.zshrc 里面没有 source ~/.zsh_user 则添加
-        if ! grep -qx "source ~/.zsh_user" ~/.zshrc; then
-            if [ "$(uname)" = "Darwin" ]; then
-                # macOS
-                printf "\nsource ~/.zsh_user\n" >> ~/.zshrc
-            else
-                # Linux
-                sed -i '$a source ~/.zsh_user' ~/.zshrc
-            fi
-        fi
-
         # 如果 ~/.zshrc 里面没有 conda initialize 则运行 mamba init zsh
         if ! grep -q "conda initialize" ~/.zshrc; then
             if [ -d ~/.miniconda3 ]; then

files/zsh/.zsh_user

@@ -1,3 +1,5 @@
+__zsh_clash_env_unset
+
 # HOST="VM-ubuntu"
 
 # ZSH_THEME="robbyrussell"

files/zsh/00-init.zsh

@@ -6,6 +6,18 @@ __ZSH_CUSTOM_INIT_INCLUDED="yes"
 
 # ====================================================================================================
 
+autoload -Uz add-zsh-hook
+
+__zsh_load_user_config() {
+    add-zsh-hook -d precmd __zsh_load_user_config
+    unfunction __zsh_load_user_config
+    [ -r "$HOME/.zsh_user" ] && source "$HOME/.zsh_user"
+}
+
+add-zsh-hook precmd __zsh_load_user_config
+
+# ====================================================================================================
+
 zstyle ':omz:update' mode reminder  # just remind me to update when it's time
 
 zstyle ':omz:update' frequency 13

update.sh

@@ -37,6 +37,34 @@ update_authorized_keys() {
     done <<< "$public_keys"
 }
 
+remove_legacy_zsh_user_source() {
+    local zshrc="$HOME/.zshrc"
+    local init_file="$HOME/.oh-my-zsh/custom/00-init.zsh"
+    [ -f "$zshrc" ] || return
+    grep -q '^add-zsh-hook precmd __zsh_load_user_config$' "$init_file" 2>/dev/null || return
+
+    local temp_file
+    temp_file=$(mktemp "${zshrc}.XXXXXX") || return 1
+
+    awk '
+        {
+            line = $0
+            sub(/^[[:space:]]+/, "", line)
+            sub(/[[:space:]]+$/, "", line)
+            if (line != "source ~/.zsh_user" && line != ". ~/.zsh_user") print
+        }
+    ' "$zshrc" > "$temp_file"
+
+    if cmp -s "$zshrc" "$temp_file"; then
+        rm "$temp_file"
+        return
+    fi
+
+    cp "$temp_file" "$zshrc"
+    rm "$temp_file"
+    echo "Legacy source ~/.zsh_user line has been removed from $zshrc."
+}
+
 # ============================================================
 
 update_file $scriptdir/files/.nanorc    ~/.nanorc
@@ -51,6 +79,7 @@ update_file $scriptdir/files/zsh/51-alias.zsh           ~/.oh-my-zsh/custom/51-a
 update_file $scriptdir/files/zsh/80-proxy.zsh           ~/.oh-my-zsh/custom/80-proxy.zsh
 update_file $scriptdir/files/zsh/90-other.zsh           ~/.oh-my-zsh/custom/90-other.zsh
 update_file $scriptdir/files/zsh/ys-simple.zsh-theme    ~/.oh-my-zsh/custom/themes/ys-simple.zsh-theme
+remove_legacy_zsh_user_source
 update_authorized_keys
 
 # sudo_id=$(sudo id -u 2>/dev/null)