Add support for install path

Author: Thomas-Boi

README.md

@@ -12,6 +12,8 @@ A buildpack to install the Playwright Chromium executable ONLY.
 # Customization
 By default, this will install the necessary exe into a folder called `/browsers` under the build directory (the directory where the root script lives).
 
+To change the this folder's name, override the `INSTALL_PATH` environmental variable.
+
 # Notes
 This was developed for usage with `playwright-python` in mind so support for other languages is unknown.
 

bin/compile

@@ -10,6 +10,8 @@ if [ -z "$INSTALL_PATH" ]; then
   INSTALL_PATH="/browsers"
 fi
 
-echo "Install path is $INSTALL_PATH"
-export PLAYWRIGHT_BROWSERS_PATH=$BUILD_DIR/browsers
-playwright install chromium
+export PLAYWRIGHT_BROWSERS_PATH=$BUILD_DIR/$INSTALL_PATH
+echo "-----> Install path is $INSTALL_PATH"
+echo "-----> Browsers will be installed in $PLAYWRIGHT_BROWSERS_PATH"
+playwright install chromium
+echo "-----> Installation done"