New webui plugin + create_instance.sh update

- create_instance.sh create some symbolic links
- webui plugin that add webui configuration variable

Makefile

+python=python3
 dyncode_filename='lodel/leapi/dyncode.py'
 
 all: tests doc dyncode
 
 # Test em update ( examples/em_test.pickle )
 em_test:
-	python3 em_test.py
+	$(python) em_test.py
 
 # generate leapi dynamic code
 dyncode: clean_dyn em_test
-	python3 scripts/refreshdyn.py examples/em_test.pickle $(dyncode_filename) && echo -e "\n\nCode generated in $(dyncode_filename)"
+	$(python) scripts/refreshdyn.py examples/em_test.pickle $(dyncode_filename) && echo -e "\n\nCode generated in $(dyncode_filename)"
 
 # run tests
 tests:

install/Makefile

+python=python3
+
 all: dyncode
 
 dyncode:
-	python -c 'import lodel_admin; lodel_admin.refresh_dyncode()'
+	$(python) -c 'import lodel_admin; lodel_admin.refresh_dyncode()'

install/conf.d/lodel2.ini

 [lodel2]
 debug = False
-plugins = dummy
 sitename = noname
+plugins_path = /foo/plugins
+plugins = dummy, webui
 
 [lodel2.logging.stderr]
 level = DEBUG

install/conf.d/webui_plugin.ini

+[lodel2.webui.sessions]
+directory=./sessions
+expiration=900
+file_template=lodel2_%s.sess

plugins/webui/confspec.py

+#-*- coding: utf-8 -*-
+
+from lodel.settings.validator import SettingValidator
+
+CONFSPEC = {
+    'lodel2.webui.sessions': {
+        'directory': (  '/tmp/lodel2_session',
+                        SettingValidator('path')),
+        'expiration': ( 900,
+                        SettingValidator('int')),
+        'file_template': (  'lodel2_%s.sess',
+                            SettingValidator('dummy')),
+    }
+}

plugins/webui/main.py

+#-*- coding: utf-8 -*-
+
+from lodel.plugin import LodelHook
+
+##@brief Hook's callback example
+@LodelHook('leapi_get_pre')
+@LodelHook('leapi_get_post')
+@LodelHook('leapi_update_pre')
+@LodelHook('leapi_update_post')
+@LodelHook('leapi_delete_pre')
+@LodelHook('leapi_delete_post')
+@LodelHook('leapi_insert_pre')
+@LodelHook('leapi_insert_post')
+def dummy_callback(hook_name, caller, payload):
+    if Lodel.settings.Settings.debug:
+        print("\tHook %s\tcaller %s with %s" % (hook_name, caller, payload))
+    return payload   

scripts/create_instance.sh

 
 echo "Creating lodel instance directory '$instdir'"
 mkdir -pv "$instdir"
+mkdir -pv "$instdir/sessions"
+chmod 700 "$instdir/sessions"
+
+#cp -Rv $libdir/install/* $instdir
+cp -Rv $libdir/install/conf.d $instdir/
+cp -Rv $libdir/install/loader.py $instdir/
+cp -Rv $libdir/install/editorial_model.pickle $instdir/
+ln -s $libdir/install/Makefile $instdir/Makefile
+ln -s $libdir/install/run.py $instdir/run.py
+ln -s $libdir/install/lodel_admin.py $instdir/lodel_admin.py
+ln -s $libdir/plugins $instdir/plugins
+
 
-cp -Rv $libdir/install/* $instdir
 
 # Adding lib path to loader
 sed -i -E "s#^(LODEL2_LIB_ABS_PATH = )None#\1'$libdir'#" "$loader"