#

# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

#

# This code is free software; you can redistribute it and/or modify it

# under the terms of the GNU General Public License version 2 only, as

# published by the Free Software Foundation.

#

# This code is distributed in the hope that it will be useful, but WITHOUT

# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

# version 2 for more details (a copy is included in the LICENSE file that

# accompanied this code).

#

# You should have received a copy of the GNU General Public License version

# 2 along with this work; if not, write to the Free Software Foundation,

# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

#

#  

#

#

# The cscope.out file is made in the current directory and spans the entire

# source tree.

#

# Things to note:

#	1. We use relative names for cscope.

#	2. We *don't* remove the old cscope.out file, because cscope is smart

#	   enough to only build what has changed.  It can be confused, however,

#	   if files are renamed or removed, so it may be necessary to manually

#	   remove cscope.out if a lot of reorganization has occurred.

#

include $(GAMMADIR)/make/scm.make

NAWK	= awk

RM	= rm -f

HG	= hg

CS_TOP	= ../..

CSDIRS	= $(CS_TOP)/src $(CS_TOP)/build

CSINCS	= $(CSDIRS:%=-I%)

CSCOPE		= cscope

CSCOPE_FLAGS	= -b

# Allow .java files to be added from the environment (CSCLASSES=yes).

ifdef	CSCLASSES

ADDCLASSES=	-o -name '*.java'

endif

# Adding CClassHeaders also pushes the file count of a full workspace up about

# 200 files (these files also don't exist in a new workspace, and thus will

# cause the recreation of the database as they get created, which might seem

# a little confusing).  Thus allow these files to be added from the environment

# (CSHEADERS=yes).

ifndef	CSHEADERS

RMCCHEADERS=	-o -name CClassHeaders

endif

# Use CS_GENERATED=x to include auto-generated files in the build directories.

ifdef	CS_GENERATED

CS_ADD_GENERATED	= -o -name '*.incl'

else

CS_PRUNE_GENERATED	= -o -name '${OS}_*_core' -o -name '${OS}_*_compiler?'

endif

# OS-specific files for other systems are excluded by default.  Use CS_OS=yes

# to include platform-specific files for other platforms.

ifndef	CS_OS

CS_OS		= linux macos solaris win32

CS_PRUNE_OS	= $(patsubst %,-o -name '*%*',$(filter-out ${OS},${CS_OS}))

endif

# Processor-specific files for other processors are excluded by default.  Use

# CS_CPU=x to include platform-specific files for other platforms.

ifndef	CS_CPU

CS_CPU		= i486 sparc amd64 ia64

CS_PRUNE_CPU	= $(patsubst %,-o -name '*%*',$(filter-out ${SRCARCH},${CS_CPU}))

endif

# What files should we include?  A simple rule might be just those files under

# SCCS control, however this would miss files we create like the opcodes and

# CClassHeaders.  The following attempts to find everything that is *useful*.

# (.del files are created by sccsrm, demo directories contain many .java files

# that probably aren't useful for development, and the pkgarchive may contain

# duplicates of files within the source hierarchy).

# Directories to exclude.

CS_PRUNE_STD	= $(SCM_DIRS) \

		  -o -name '.del-*' \

		  -o -name '*demo' \

		  -o -name pkgarchive

CS_PRUNE	= $(CS_PRUNE_STD) \

		  $(CS_PRUNE_OS) \

		  $(CS_PRUNE_CPU) \

		  $(CS_PRUNE_GENERATED) \

		  $(RMCCHEADERS)

# File names to include.

CSFILENAMES	= -name '*.[ch]pp' \

		  -o -name '*.[Ccshlxy]' \

		  $(CS_ADD_GENERATED) \

		  -o -name '*.il' \

		  -o -name '*.cc' \

		  -o -name '*[Mm]akefile*' \

		  -o -name '*.gmk' \

		  -o -name '*.make' \

		  -o -name '*.ad' \

		  $(ADDCLASSES)

.PRECIOUS:	cscope.out

cscope cscope.out: cscope.files FORCE

	$(CSCOPE) $(CSCOPE_FLAGS)

# The .raw file is reordered here in an attempt to make cscope display the most

# relevant files first.

cscope.files: .cscope.files.raw

	echo "$(CSINCS)" > $@

	-egrep -v "\.java|\/make\/"	$< >> $@

	-fgrep ".java"			$< >> $@

	-fgrep "/make/"		$< >> $@

.cscope.files.raw:  .nametable.files

	-find $(CSDIRS) -type d \( $(CS_PRUNE) \) -prune -o \

	    -type f \( $(CSFILENAMES) \) -print > $@

cscope.clean:  nametable.clean

	-$(RM) cscope.out cscope.files .cscope.files.raw

TAGS:  cscope.files FORCE

	egrep -v '^-|^$$' $< | etags --members -

TAGS.clean:  nametable.clean

	-$(RM) TAGS

# .nametable.files and .nametable.files.tmp are used to determine if any files

# were added to/deleted from/renamed in the workspace.  If not, then there's

# normally no need to rebuild the cscope database. To force a rebuild of

# the cscope database: gmake nametable.clean.

.nametable.files:  .nametable.files.tmp

	( cmp -s $@ $< ) || ( cp $< $@ )

	-$(RM) $<

# `hg status' is slightly faster than `hg fstatus'. Both are

# quite a bit slower on an NFS mounted file system, so this is

# really geared towards repos on local file systems.

.nametable.files.tmp:

	-$(HG) fstatus -acmn > $@

nametable.clean:

	-$(RM) .nametable.files .nametable.files.tmp

FORCE:

.PHONY:		cscope cscope.clean TAGS.clean nametable.clean FORCE