Add environment variable to speed up pip reruns (#125)

Add environment variable to speed up pip reruns, see pypa/pip#12079 .  Needed until next version of pip (23.2.X is released)

Dockerfile

@@ -16,7 +16,10 @@ WORKDIR /app
 COPY --from=builder --chown=500:500 /app /app
 
 # Enable compilation of po files into mo files (This is added here for backward compatibility)
+
 ENV zope_i18n_compile_mo_files=true
+# https://github.com/pypa/pip/issues/12079
+ENV _PIP_USE_IMPORTLIB_METADATA=0
 
 # Link /data (the exposed volume) into /app/var
 RUN ln -s /data /app/var

Dockerfile.acceptance

@@ -3,6 +3,9 @@ ARG PYTHON_VERSION=3.11
 ARG PLONE_VERSION
 FROM plone/server-builder:${PLONE_VERSION} as builder
 
+# https://github.com/pypa/pip/issues/12079
+ENV _PIP_USE_IMPORTLIB_METADATA=0
+
 # Install robotframework support
 RUN /app/bin/pip install plone.app.robotframework>=2.0.0
 
@@ -29,6 +32,8 @@ ENV LISTEN_PORT=${ZSERVER_PORT}
 ENV APPLY_PROFILES=plone.app.contenttypes:plone-content,plone.restapi:default,plone.volto:default-homepage
 # Packages to be used in configuration
 ENV CONFIGURE_PACKAGES=plone.app.contenttypes,plone.restapi,plone.volto,plone.volto.cors
+# https://github.com/pypa/pip/issues/12079
+ENV _PIP_USE_IMPORTLIB_METADATA=0
 
 RUN ln -s /data /app/var
 

Dockerfile.classicui

@@ -24,3 +24,5 @@ RUN ln -s /data /app/var
 
 # Setup default type for site creation to be classic
 ENV TYPE=classic
+# https://github.com/pypa/pip/issues/12079
+ENV _PIP_USE_IMPORTLIB_METADATA=0

Dockerfile.dev

@@ -28,7 +28,8 @@ ENV DEBUG_MODE on
 ENV zope_i18n_compile_mo_files=
 # Set chameleon cache directory
 ENV CHAMELEON_CACHE /app/var/cache
-
+# https://github.com/pypa/pip/issues/12079
+ENV _PIP_USE_IMPORTLIB_METADATA=0
 # Expose Zope Port
 EXPOSE 8080