Add support for Python Package Index (pypi) master site handling.

This is commented for now in bsd.fetch.mk pending 48 hours of feedback on
tech-pkg@.

2 files changed, 43 insertions, 2 deletions

diff --git a/mk/fetch/bsd.fetch.mk b/mk/fetch/bsd.fetch.mk
index c4b305f5b0c..462eb3d6591 100644
--- a/mk/fetch/bsd.fetch.mk
+++ b/mk/fetch/bsd.fetch.mk
@@ -1,4 +1,4 @@
-# $NetBSD: bsd.fetch.mk,v 1.8 2015/03/07 14:17:52 tnn Exp $
+# $NetBSD: bsd.fetch.mk,v 1.9 2015/07/01 00:55:34 rodent Exp $
 #
 # This Makefile fragment is included by bsd.pkg.mk and defines the
 # relevant variables and targets for the "fetch" step.
@@ -39,4 +39,4 @@
 .include "fetch-list.mk"
 .include "distclean.mk"
 .include "github.mk"
-
+#.include "pypi.mk"
diff --git a/mk/fetch/pypi.mk b/mk/fetch/pypi.mk
new file mode 100644
index 00000000000..d86bdd0725e
--- /dev/null
+++ b/mk/fetch/pypi.mk
@@ -0,0 +1,41 @@
+# $NetBSD: pypi.mk,v 1.1 2015/07/01 00:55:34 rodent Exp $
+#
+# pypi.python.org master site handling
+#
+# To use, set in the pkgsrc Makefile:
+#
+# DISTNAME=	pyfoo-1.0.0
+# MASTER_SITES=	${MASTER_SITE_PYPI}
+#
+# Then, PKGNAME and HOMEPAGE will be set automatically (can be overridden).
+#
+# Keywords: pypi python
+
+.if defined(MASTER_SITES) && !empty(MASTER_SITES:C,^https:\/\/pypi.python.org\/packages\/source\/$,match,:Mmatch)
+_USE_PYPI=		YES
+.endif
+
+.if defined(_USE_PYPI) && !defined(DISTNAME)
+PKG_FAIL_REASON+=	"DISTNAME must be set when MASTER_SITES = MASTER_SITE_PYPI."
+.endif
+
+.if defined(_USE_PYPI) && !empty(_USE_PYPI:MYES)
+_PYPI_DEFAULT_DISTFILES=	${DISTNAME}${EXTRACT_SUFX}
+
+# For: https://pypi.python.org/packages/source/p/pyfoo/
+_PYPI_PACKAGE_PATH=		${DISTNAME:S/-${PKGVERSION_NOREV}//1}
+
+# For: https://pypi.python.org/packages/source/p/
+_PYPI_PATH_INDEX=		${_PYPI_PACKAGE_PATH:C/^([[:alnum:]]{1}).*$/\1/1}
+
+SITES.${_PYPI_DEFAULT_DISTFILES}=	${MASTER_SITES:=${_PYPI_PATH_INDEX}/${_PYPI_PACKAGE_PATH}/}
+
+# Lets us override PKGNAME in the pkgsrc Makefile if necessary.
+# No need to sacrifice convenience otherwise.
+.if defined(PKGNAME) && ${PKGNAME} == ${DISTNAME}
+PKGNAME=			${PYPKGPREFIX}-${DISTNAME}
+.endif
+
+# Makes: https://pypi.python.org/pypi/pyfoo/1.0.0 and saves an HTTP redirect.
+HOMEPAGE?=			https://pypi.python.org/pypi/${_PYPI_PACKAGE_PATH}/${PKGVERSION_NOREV}
+.endif