# vim:ft=automake
# Copyright (c) 2005 Zmanda, Inc.  All Rights Reserved.
# 
# This library is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License version 2.1 as 
# published by the Free Software Foundation.
# 
# This library 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 Lesser General Public
# License for more details.
# 
# You should have received a copy of the GNU Lesser General Public License
# along with this library; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA.
# 
# Contact information: Zmanda Inc., 505 N Mathlida Ave, Suite 120
# Sunnyvale, CA 94085, USA, or: http://www.zmanda.com

# SYNOPSIS:
#
# Automake magic to handle the various tasks of building scripts.  Scripts can
# be built down to extensionless executables (e.g., foo.pl -> foo), or to 
# files with the usual extension (foo-lib.sh.in -> foo.sh).
#
# Files which support it are syntax-checked when the user invokes 'make check'.
#
# All *target* filenames must be listed in SCRIPTS_SHELL, SCRIPTS_PERL, and 
# SCRIPTS_AWK to support 'make check', 'make dist', and 'make distclean'.
#
# USAGE:
#
#   include $(top_srcdir)/config/automake/vars.am
#   include $(top_srcdir)/config/automake/scripts.am
#   ...
#   SCRIPTS_PERL = fooscript barscript perl-lib.pl perlmod.pm
#   SCRIPTS_SHELL = shell1 shell2 sh-lib.sh
#   SCRIPTS_AWK = talk balk chalk awk-lib.awk
#
# with the corresponding files in the repository:
#
#   fooscript.pl barscript.pl perl-lib.pl.in perlmod.pm.in
#   shell1.sh shell2.sh sh-lib.sh.in
#   talk.awk balk.awk chalk.awk awk-lib.awk.in
#
# by default, all shell and perl scripts are syntax checked.  If this is
# a problem (for example, perl scripts depending on Amanda extension 
# modules), then assign to CHECK_{PERL,SHELL} the list of files you wish
# to be checked (which can be empty).
#
# To add extra flags to the perl checks (e.g., to add new -I flags), set
# CHECK_PERL_FLAGS.

# Implementation note:
#
# This file uses config.status to substitute @foo@ in those scripts while
# converting them. It also adds the executable bits (a+x) to extensionless
# files.  The substitution works even though the files are not listed in 
# configure.in

# Perl
%: %.pl $(top_builddir)/config.status
	$(top_builddir)/config.status --file=$@:$<
	chmod a+x $@

%.pl: %.pl.in $(top_builddir)/config.status
	$(top_builddir)/config.status --file=$@:$<

%.pm: %.pm.in $(top_builddir)/config.status
	$(top_builddir)/config.status --file=$@:$<

# Shell
%: %.sh $(top_builddir)/config.status
	$(top_builddir)/config.status --file=$@:$<
	chmod a+x $@

%.sh: %.sh.in $(top_builddir)/config.status
	$(top_builddir)/config.status --file=$@:$<

# Awk
%: %.awk $(top_builddir)/config.status
	$(top_builddir)/config.status --file=$@:$<
	chmod a+x $@

%.awk: %.awk.in $(top_builddir)/config.status
	$(top_builddir)/config.status --file=$@:$<

# config.status leaves config.log files around
CLEANFILES += config.log

# and we'll need to clean up our generated files for distclean
DISTCLEANFILES += $(SCRIPTS_SHELL) $(SCRIPTS_PERL) $(SCRIPTS_AWK)

# syntax-check perl scripts on 'make check'
check-perl: $(CHECK_PERL)
	@CHECK_PERL="$(CHECK_PERL)"; \
	if test -n "$(PERL)"; then \
		for perlobj in $$CHECK_PERL; do \
			$(PERL) $(CHECK_PERL_FLAGS) -c -w -T $$perlobj || exit 1; \
		done; \
	fi
check-local: check-perl

# syntax-check shell scripts on 'make check'
CHECK_SHELL = $(SCRIPTS_SHELL)
check-shell: $(CHECK_SHELL)
	@CHECK_SHELL="$(CHECK_SHELL)"; \
	if test -n "$$CHECK_SHELL"; then \
		if test -n "$(BASH)"; then \
			for shobj in $$CHECK_SHELL; do \
				if $(BASH) -n $$shobj; then \
					echo "$$shobj syntax OK"; \
				else \
					echo "$$shobj syntax error"; \
					exit 1; \
				fi; \
			done; \
		else \
			echo "No 'bash' available -- cannot syntax-check shell scripts"; \
		fi; \
	fi
check-local: check-shell

# make sure that the sources for all shell and perl scripts get included
# in the distribution
dist-scripts:
	SCRIPTS_PERL="$(SCRIPTS_PERL)"; SCRIPTS_SHELL="$(SCRIPTS_SHELL)"; SCRIPTS_AWK="$(SCRIPTS_AWK)"; \
	for script in $$SCRIPTS_PERL; do \
		test -f $(srcdir)/$${script}.pl && { cp -p $(srcdir)/$${script}.pl $(distdir)/ || exit 1; } \
	done; \
	for script in $$SCRIPTS_SHELL; do \
		test -f $(srcdir)/$${script}.sh && { cp -p $(srcdir)/$${script}.sh $(distdir)/ || exit 1; } \
	done; \
	for script in $$SCRIPTS_AWK; do \
		test -f $(srcdir)/$${script}.awk && { cp -p $(srcdir)/$${script}.awk $(distdir)/ || exit 1; } \
	done; \
	for script in $$SCRIPTS_SHELL $$SCRIPTS_PERL $$SCRIPTS_AWK; do \
		test -f $(srcdir)/$${script}.in && { cp -p $(srcdir)/$${script}.in $(distdir)/ || exit 1; } \
	done; \
	true
dist-hook: dist-scripts