WIP: Add a mechanism to replace the shebang of parse_link_errors.py when the...

WIP: Add a mechanism to replace the shebang of parse_link_errors.py when the main Makefile is called with $PYTHON_PATH defined.
Warning: this is a quick but dirty fix and it should be made more standard asap!

Makefile

 ifeq ($(PREFIX),)
 	PREFIX := /usr
 endif
+ifneq ($(PYTHON_PATH),)
+	DUMB = $(shell sed "s|%PYTHON_PATH%|$(PYTHON_PATH)/bin/python3|g" installation/metadata-collect-agent/parse_link_errors.py.in > installation/metadata-collect-agent/parse_link_errors.py)
+endif
 
 all: no-dracut
 install: install-no-dracut
 clean: clean-no-dracut
 
 bin/metadata-collect-agent:
+	echo $(DUMB) # the "shell sed" seems not to be executed without the DUMB variable being used
 	#Error expected here (line -g++ ...), writing a C program using the error messages
 	install -d bin/ ;\
 	mkdir -p build/ ;\
@@ -48,7 +52,12 @@ clean-no-dracut-local:
 	rm -rf build/
 	rm -rf bin/
 	rm -rf lib/
+	sed "s|%PYTHON_PATH%|/usr/bin/env python3|g" installation/metadata-collect-agent/parse_link_errors.py.in > installation/metadata-collect-agent/parse_link_errors.py
+	echo $(DUMB)
 
 clean-no-dracut: uninstall-no-dracut clean-no-dracut-local
 
-.PHONY: no-dracut install-no-dracut uninstall-no-dracut clean-no-dracut all install clean
+dev:
+	echo $(DUMB)
+
+.PHONY: no-dracut install-no-dracut uninstall-no-dracut clean-no-dracut all install clean dev

installation/metadata-collect-agent/Makefile

 #INCLUDE_PYTHON=-I$(shell python3 -c "import sysconfig; print(sysconfig.get_path('include'))")
-ifeq ($(INCLUDE_PYTHON),)
 ifneq ($(PYTHON_PATH),) # this is for buildouts
 	#INCLUDE_PYTHON=-I$(shell python3 -c "import sysconfig; print(sysconfig.get_path('include'))")
 	INCLUDE_PYTHON=-I$(shell $(PYTHON_PATH)/bin/python3 -c "from sysconfig import get_paths; print(get_paths()['include'])")
@@ -8,7 +7,6 @@ ifeq ($(INCLUDE_PYTHON),) # default behavior to get python includes path
 #	INCLUDE_PYTHON = $(shell pkg-config --cflags python3 | cut -f 1 -d " ")
 	INCLUDE_PYTHON=-I$(shell python3 -c "import sysconfig; print(sysconfig.get_path('include'))")
 endif
-endif
 
 ifneq ($(FMTLIB_PATH),)
 	INCLUDE_FMTLIB = -I$(FMTLIB_PATH)/include

installation/metadata-collect-agent/parse_link_errors.py.in

+#!%PYTHON_PATH%
+
+import sys
+import re
+
+def parse_input():
+    p = re.compile(r'undefined reference to `(.*(Py).*)\'')
+    functions_to_implement = set()
+    while True:
+        try:
+            m = p.search(input())
+        except EOFError:
+            break
+        
+        if m != None:
+            functions_to_implement.update({m.group(1)})
+
+    return functions_to_implement
+
+def produce_code(parsed_input, file_name='fake_python.c'):
+    f = open(file_name, "w")
+
+    for function in parsed_input:
+        f.write('void ' + function + '(){}\n')
+
+    f.close()
+
+if __name__ == '__main__':
+    
+    parsed_input = parse_input()
+    produce_code(parsed_input)
+