manual: introduce CMake logic for asciidoctor execution

Introduce new "manual", "manual-html" and "manual-pdf" make(1) targets
(the former depending on the latter). None of these targets are part of
"make all" by design, users decide whether to convert the manual text.
Execution will fail (fatally) in the absence of dependencies or tools.

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 380f37a9320cb1567fb5cea95c4fd107f837e73b..64538f5b338522192f7098fadf60a61acee8d899 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -62,6 +62,12 @@ if(NOT CMAKE_BUILD_TYPE)
        FORCE)
 endif()
 
+#===============================================================================
+#= Documentation
+#-------------------------------------------------------------------------------
+
+add_subdirectory(manual)
+
 #===============================================================================
 #= Dependencies
 #-------------------------------------------------------------------------------

diff --git a/manual/CMakeLists.txt b/manual/CMakeLists.txt
new file mode 100644 (file)
index 0000000..47e6fdd
--- /dev/null
+++ b/manual/CMakeLists.txt
@@ -0,0 +1,53 @@
+##
+## This file is part of the PulseView project.
+##
+## Copyright (C) 2018 Gerhard Sittig <gerhard.sittig@gmx.net>
+##
+## This program is free software: you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation, either version 2 of the License, or
+## (at your option) any later version.
+##
+## This program 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 for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program.  If not, see <http://www.gnu.org/licenses/>.
+##
+
+find_program(ASCIIDOCTOR_EXECUTABLE NAMES asciidoctor)
+find_program(ASCIIDOCTOR_PDF_EXECUTABLE NAMES asciidoctor-pdf)
+
+set(STYLES_DIR "${CMAKE_CURRENT_SOURCE_DIR}/asciidoctor-stylesheet-factory/stylesheets")
+set(STYLE_SHEET "readthedocs.css")
+set(MANUAL_SRC "${CMAKE_CURRENT_SOURCE_DIR}/pulseview_manual.txt")
+set(MANUAL_OUT_HTML "${CMAKE_CURRENT_BINARY_DIR}/pulseview_manual.html")
+set(MANUAL_OUT_PDF "${CMAKE_CURRENT_BINARY_DIR}/pulseview_manual.pdf")
+
+add_custom_target(manual-html
+       COMMAND ${ASCIIDOCTOR_EXECUTABLE}
+               -a stylesheet=${STYLE_SHEET}
+               -a stylesdir=${STYLES_DIR}
+               -a toc=left
+               --destination-dir=${CMAKE_CURRENT_BINARY_DIR}
+               ${MANUAL_SRC}
+       BYPRODUCTS ${MANUAL_OUT_HTML}
+       DEPENDS ${MANUAL_SRC}
+       WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+       COMMENT "Generating manual, HTML output"
+)
+add_custom_target(manual-pdf
+       COMMAND ${ASCIIDOCTOR_PDF_EXECUTABLE}
+               -a stylesheet=${STYLE_SHEET}
+               -a stylesdir=${STYLES_DIR}
+               --destination-dir=${CMAKE_CURRENT_BINARY_DIR}
+               ${MANUAL_SRC}
+       BYPRODUCTS ${MANUAL_OUT_PDF}
+       DEPENDS ${MANUAL_SRC}
+       WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+       COMMENT "Generating manual, HTML output"
+)
+add_custom_target(manual)
+add_dependencies(manual manual-html manual-pdf)