#
# - Find unix commands from cygwin
# This module looks for some usual Unix commands.
#

INCLUDE(FindCygwin)

FIND_PROGRAM(A2X_EXECUTABLE
  NAMES
    a2x
  PATHS
    ${CYGWIN_INSTALL_PATH}/bin
    /bin
    /usr/bin
    /usr/local/bin
    /sbin
)

# Make sure we don't get language specific quotes
set( A2X_EXECUTABLE LC_ALL=C ${A2X_EXECUTABLE} )

# Handle the QUIETLY and REQUIRED arguments and set A2X_FOUND to TRUE if
# all listed variables are TRUE
INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(A2X DEFAULT_MSG A2X_EXECUTABLE)

MARK_AS_ADVANCED(A2X_EXECUTABLE)

MACRO( ASCIIDOC2HTML _output _asciidocsource _conffile )
    GET_FILENAME_COMPONENT( _source_base_name ${_asciidocsource} NAME_WE )
    set( A2X_HTML_OPTS --stylesheet=ws.css )
    ADD_CUSTOM_COMMAND(
	WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
        OUTPUT
            ${_output}
	COMMAND ${A2X_EXECUTABLE}
	    --format=xhtml
	    --destination-dir=${CMAKE_CURRENT_BINARY_DIR}
	    --asciidoc-opts="--conf-file=${CMAKE_CURRENT_SOURCE_DIR}/${_conffile}"
	    --fop
	    ${A2X_HTML_OPTS}
	    ${_asciidocsource}
	# Replacing file with itself will fail
	# COMMAND mv
	#     ${CMAKE_CURRENT_BINARY_DIR}/${_source_base_name}.html
	#     ${CMAKE_CURRENT_BINARY_DIR}/${_output}
        DEPENDS
            ${_asciidocsources}
            ${_otherdependencies}
    )
ENDMACRO()

MACRO( ASCIIDOC2TXT _output _asciidocsource _conffile )
    GET_FILENAME_COMPONENT( _source_base_name ${_asciidocsource} NAME_WE )
    if( LYNX_EXECUTABLE MATCHES lynx )
	set( A2X_TEXT_OPTS --lynx )
    else()
	set( A2X_TEXT_OPTS  )
    endif()
    ADD_CUSTOM_COMMAND(
	WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
        OUTPUT
            ${_output}
        COMMAND ${A2X_EXECUTABLE}
            --format=text
	    --destination-dir=${CMAKE_CURRENT_BINARY_DIR}
	    --asciidoc-opts="--conf-file=${CMAKE_CURRENT_SOURCE_DIR}/${_conffile}"
	    --fop
            ${A2X_TEXT_OPTS}
            --xsltproc-opts '--stringparam generate.toc "article nop"'
            ${_asciidocsource}
	COMMAND mv
	    ${CMAKE_CURRENT_BINARY_DIR}/${_source_base_name}.text
	    ${CMAKE_CURRENT_BINARY_DIR}/${_output}
        DEPENDS
            ${_asciidocsource}
            ${_conffile}
    )
ENDMACRO()

# news: release-notes.txt
#         cp release-notes.txt ../NEWS

MACRO( ASCIIDOC2PDF _output _asciidocsource _conffile _paper )
    GET_FILENAME_COMPONENT( _source_base_name ${_asciidocsource} NAME_WE )
    set( A2X_HTML_OPTS --stylesheet=ws.css )
    ADD_CUSTOM_COMMAND(
	WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
        OUTPUT
            ${_output}
	COMMAND ${A2X_EXECUTABLE}
	    --format=pdf
	    --destination-dir=${CMAKE_CURRENT_BINARY_DIR}
	    --asciidoc-opts="--conf-file=${CMAKE_CURRENT_SOURCE_DIR}/${_conffile}"
	    --fop
	    ${A2X_HTML_OPTS}
	    --xsltproc-opts "--stringparam paper.type ${_paper} --nonet"
	    --xsl-file=custom_layer_pdf.xsl
	    ${_asciidocsource}
	COMMAND mv
	    ${CMAKE_CURRENT_BINARY_DIR}/${_source_base_name}.pdf
	    ${CMAKE_CURRENT_BINARY_DIR}/${_output}
        DEPENDS
            ${_asciidocsources}
            ${_otherdependencies}
    )
ENDMACRO()