#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#

#
# Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
# Copyright 2018 OmniOS Community Edition (OmniOSce) Association.
#

#
# This Makefile provides a framework for building the onbld python
# modules with multiple versions of python.
#
# It expects as input:
#
#    PYSRCS   - List of python source files, these are also delivered as
#               build product.
#
#    PYOBJS   - List of compiled python (.pyc) files, with no directory prefix
#
#    PYTOPDIR - Absolute (including $(ROOT)) path to which files will
#               be installed, up until the version specific component.
#
#    PYMODDIR - Relative path to which files will be installed, below
#               the version specific component.
#
#    For example, to install to /opt/onbld/lib/onbld/python*/bar/
#
#          PYTOPDIR = $(ROOTONBLDLIB)
#          PYMODDIR = bar
#
#
# It provides as output:
#
#    ROOTPYFILES - The list of $(ROOT)-relative paths to which python
#                  source and binary files will be installed.  Your
#                  Makefile's 'install' target should depend upon
#                  this.
#
#    PYVERSOBJS  - The list of paths to compiled python build products,
#                  including their subdirectory.
#
#    pyclobber   - A target on which 'clobber' should depend, which
#                  removes the per-version python directories and the
#                  output within them.
#

PYFILES = $(PYSRCS) $(PYOBJS)

ROOTPYDIR = $(PYTOPDIR)/python$(PYVER)/$(PYMODDIR)
ROOTPYFILES	= $(PYFILES:%=$(ROOTPYDIR)/%)

$(ROOTPYFILES) := FILEMODE = 0444

PYVERSDIRS = python$(PYVER)

PYVERSOBJS = $(PYOBJS:%=python$(PYVER)/%)

CLOBBERFILES += $(PYVERSOBJS)
CLOBBERDIRS += $(PYVERSDIRS)

.KEEP_STATE:

$(ROOTPYDIR)/%.py: ../%.py
	$(INS.pyfile)

pyclobber:
	$(RM) $(CLOBBERFILES)
	$(RM) -rf $(CLOBBERDIRS)

# Python 2 module compilation

python$(PYVER)/%.pyc: ../%.py
	@[ -d $(@D) ] || mkdir $(@D)
	$(RM) $@
	$(PYTHON) -mpy_compile $<
	$(MV) ../$(*).pyc $@

$(ROOTPYDIR)/%.pyc: python$(PYVER)/%.pyc
	$(INS.pyfile)

# Python 3 module compilation

python$(PYVER)/__pycache__/%.cpython$(PYPKGVERS).pyc: ../%.py
	@[ -d $(@D) ] || mkdir -p $(@D)
	$(RM) $@
	$(PYTHON3) -mpy_compile $<
	$(MV) ../__pycache__/$(*).cpython$(PYPKGVERS).pyc $@

$(ROOTPYDIR)/__pycache__/%.pyc: python$(PYVER)/__pycache__/%.pyc
	$(INS.pyfile)