debian/rules - Generate pandas/version.py if not present out of debian/changelog upstream version information (versioneer wouldn't know since relies on git)

Author: yarikoptic

debian/changelog

@@ -4,6 +4,10 @@ pandas (0.17.0~rc1+git92-gc6bcc99-1) unstable; urgency=medium
     - Started to trigger failures of test_constructor_compound_dtypes and
       test_invalid_index_types -- disabled those for now, see
       https://github.com/pydata/pandas/issues/11169
+  * debian/rules
+    - Generate pandas/version.py if not present out of debian/changelog
+      upstream version information (versioneer wouldn't know since relies on
+      git)
 
  -- Yaroslav Halchenko <[email protected]>  Tue, 22 Sep 2015 10:35:36 -0400
 

debian/rules

@@ -18,6 +18,7 @@ PY3VERS = $(shell py3versions -vr)
 PY3VER = $(shell py3versions -vd)
 
 UVER := $(shell LC_ALL=C dpkg-parsechangelog | awk '/^Version:/{print $$2;}' | sed -e 's,-[^-]*$$,,g')
+UVER_SHORT := $(shell echo $(UVER) | sed -e 's,[~],,g' -e 's,+git.*,,g')
 
 MIN_CYTHONVER = 0.20.2
 
@@ -75,9 +76,14 @@ override_dh_clean: clean_generated
 	: # prune auto-generated version.py -- will be generated during build again
 	rm -f pandas/version.py
 
-override_dh_auto_build:
+version_py:
+	[ -e pandas/version.py ] || \
+      echo -e "version = '$(UVER)'\nshort_version = '$(UVER_SHORT)'" > pandas/version.py
+
+override_dh_auto_build: version_py
 	# Override default build operation which --force's re-cythonization
 	# on elderly ubuntus
+	# Just build the version.py file
 	:
 
 override_dh_auto_install: ${PYVERS:%=python-install%} ${PY3VERS:%=python-install%} ${PYVERS:%=python-test%} ${PY3VERS:%=python-test%}