packaging: take version number as a parameter for debian (#2)

Summary:
X-link: facebookarchive/sapling-staging#2

Instead of hard coding 0.1, let's take the version as a parameter.

Reviewed By: sggutier

Differential Revision: D39068760

fbshipit-source-id: 1eda642b19ac961544161fa9f5ecacda9a292f6b

Author: DurhamG

eden/scm/Makefile

@@ -108,7 +108,8 @@ build:
 deb:
 	DESTDIR=install make install-oss
 	mkdir -p "install/DEBIAN"
-	cp packaging/debian/control "install/DEBIAN/control"
+	cp packaging/debian/control install/DEBIAN/control
+	sed -i "s/%VERSION%/$(VERSION)/g" install/DEBIAN/control
 	dpkg-deb --build --root-owner-group install
 	dpkg-name install.deb
 

eden/scm/packaging/debian/control

@@ -1,5 +1,5 @@
 Package: sapling
-Version: 0.1
+Version: %VERSION%
 Architecture: amd64
 Maintainer: Meta Platforms, Inc.
-Description: A source control client
+Description: A source control client.