Add snippets.d auto-import for modular config

SKILL.md

@@ -42,6 +42,17 @@ Create a `Caddyfile` in your skill's directory or set `CADDYFILE_PATH` environme
 # }
 ```
 
+## Auto-Import from Skills
+
+Other skills can drop `.caddy` snippets into `caddy/snippets.d/` and they'll be automatically merged at startup.
+
+Example: If `ttyd` skill is present with `TTYD_DOMAIN=terminal.example.com`, it creates:
+```
+caddy/snippets.d/ttyd.caddy
+```
+
+Caddy's `run.sh` merges all snippets into the config before starting.
+
 ## Usage
 
 This skill is typically used as a dependency by other skills that need a web server:

scripts/autorun.sh

@@ -25,11 +25,16 @@ install_caddy() {
     echo "Caddy installed: $(caddy version)"
 }
 
-# Create data directory
+# Create data directory and snippets folder
 setup_dirs() {
     local data_dir="${CADDY_DATA_DIR:-/data/caddy}"
+    local skill_dir="$(dirname "$(dirname "$0")")"
+
     mkdir -p "$data_dir"
+    mkdir -p "$skill_dir/snippets.d"
+
     echo "Caddy data directory: $data_dir"
+    echo "Caddy snippets directory: $skill_dir/snippets.d"
 }
 
 install_caddy

scripts/run.sh

@@ -1,13 +1,40 @@
 #!/bin/bash
 set -e
 
-CADDYFILE_PATH="${CADDYFILE_PATH:-/skills/caddy/Caddyfile}"
+SKILL_DIR="$(dirname "$(dirname "$0")")"
+CADDYFILE_PATH="${CADDYFILE_PATH:-$SKILL_DIR/Caddyfile}"
 CADDY_DATA_DIR="${CADDY_DATA_DIR:-/data/caddy}"
+SNIPPETS_DIR="$SKILL_DIR/snippets.d"
+MERGED_CONFIG="/tmp/Caddyfile.merged"
 
-if [ ! -f "$CADDYFILE_PATH" ]; then
+# Merge base Caddyfile with snippets from other skills
+merge_config() {
+    if [ ! -f "$CADDYFILE_PATH" ]; then
         echo "Error: Caddyfile not found at $CADDYFILE_PATH"
         exit 1
-fi
+    fi
 
-echo "Starting Caddy with config: $CADDYFILE_PATH"
-exec caddy run --config "$CADDYFILE_PATH" --adapter caddyfile
+    # Start with base config
+    cat "$CADDYFILE_PATH" > "$MERGED_CONFIG"
+
+    # Append snippets from other skills
+    if [ -d "$SNIPPETS_DIR" ] && [ "$(ls -A "$SNIPPETS_DIR" 2>/dev/null)" ]; then
+        echo "" >> "$MERGED_CONFIG"
+        echo "# === Auto-imported from skills ===" >> "$MERGED_CONFIG"
+
+        for snippet in "$SNIPPETS_DIR"/*.caddy; do
+            if [ -f "$snippet" ]; then
+                echo "" >> "$MERGED_CONFIG"
+                cat "$snippet" >> "$MERGED_CONFIG"
+                echo "Imported: $(basename "$snippet")"
+            fi
+        done
+    fi
+
+    echo "Merged config written to: $MERGED_CONFIG"
+}
+
+merge_config
+
+echo "Starting Caddy..."
+exec caddy run --config "$MERGED_CONFIG" --adapter caddyfile