Modify installation extension dependencies (AbdBarho#518)

Perform a full extension installation process instead of just installing
dependencies
Some extensions do not include `requirements.txt` but install
dependencies in `install.py`, and all extensions include `install.py`,
so it is safe to use it for extended dependency installation
This is because the extension development of AUTOMATIC1111's webui does
not require the existence of `requirements.txt` but uses `install.py` to
initialize the extension

https://github.com/AUTOMATIC1111/stable-diffusion-webui/wiki/Developing-extensions#installpy

docker-compose.yml

@@ -29,7 +29,7 @@ services:
     <<: *base_service
     profiles: ["auto"]
     build: ./services/AUTOMATIC1111
-    image: sd-auto:59
+    image: sd-auto:60
     environment:
       - CLI_ARGS=--allow-code --medvram --xformers --enable-insecure-extension-access --api
 

services/AUTOMATIC1111/entrypoint.sh

@@ -57,9 +57,10 @@ chown -R root ~/.cache/
 chmod 766 ~/.cache/
 
 shopt -s nullglob
-list=(./extensions/*/requirements.txt)
-for req in "${list[@]}"; do
-  pip install -r "$req"
+# For install.py, please refer to https://github.com/AUTOMATIC1111/stable-diffusion-webui/wiki/Developing-extensions#installpy
+list=(./extensions/*/install.py)
+for installscript in "${list[@]}"; do
+  PYTHONPATH=${ROOT} python "$installscript"
 done
 
 if [ -f "/data/config/auto/startup.sh" ]; then