Ensure only relative paths are used in requirements.txt.

Author: tillahoffmann

Makefile

@@ -19,3 +19,5 @@ clean :
 
 requirements.txt : requirements.in setup.py
 	pip-compile -v requirements.in
+	./make_paths_relative.py < requirements.txt > requirements.tmp
+	mv requirements.tmp $@

make_paths_relative.py

@@ -0,0 +1,14 @@
+#!/usr/bin/env python
+import os
+import re
+import sys
+
+pattern = re.compile(r"\s*-e\s+file://(?P<path>.*?)\n")
+inputs = sys.stdin.readlines()
+for line in inputs:
+    match = pattern.match(line)
+    if match:
+        path = match.group("path")
+        path = os.path.relpath(path)
+        line = f"-e {path}\n"
+    sys.stdout.write(line)

requirements.txt

@@ -4,7 +4,7 @@
 #
 #    pip-compile --output-file requirements.txt requirements.in
 #
--e file:///Users/till/git/pythonflow
+-e .
 alabaster==0.7.12         # via sphinx
 astroid==1.6.5            # via pylint
 atomicwrites==1.3.0       # via pytest