fix: repo2docker compatibility

Makefile

@@ -1,5 +1,3 @@
--include .env
-
 # Makefile for convenience, (doesn't look for command outputs)
 .PHONY: all
 all: base-image base-notebook pangeo-notebook pytorch-notebook

base-image/Dockerfile

@@ -186,16 +186,22 @@ ONBUILD RUN echo "Checking for pip 'requirements.txt'..." \
 
 ONBUILD USER root
 
-ONBUILD COPY resources/layer-cleanup.sh /usr/local/bin
-ONBUILD RUN chmod +x /usr/local/bin/layer-cleanup.sh
-
-ONBUILD RUN for script in $(find "resources" -type f -name "install.sh"); do \
-        chmod +x "$script"; \
-        echo "Executing $script"; \
-        bash "$script"; \
-        layer-cleanup.sh; \
-        chown -R ${NB_USER}:${NB_USER} ${HOME}; \
-    done
+ONBUILD RUN  echo "Copy 'layer-cleanup'..." \
+        ; [ -d binder ] && cd binder \
+        ; [ -d .binder ] && cd .binder \
+        ; cp resources/layer-cleanup.sh /usr/local/bin/ \
+        ; chmod +x /usr/local/bin/layer-cleanup.sh
+
+ONBUILD RUN echo "Executing install scripts..." \
+        ; [ -d binder ] && cd binder \
+        ; [ -d .binder ] && cd .binder \
+        ; for script in $(find "resources" -type f -name "install.sh"); do \
+                chmod +x "$script"; \
+                echo "Executing $script"; \
+                bash "$script"; \
+                layer-cleanup.sh; \
+                chown -R ${NB_USER}:${NB_USER} ${HOME}; \
+        done
 
 ONBUILD USER ${NB_USER}