use asciidoc for manpages, instead of docbook

This is the same like the matching Icecream commit.

.travis.yml

@@ -21,16 +21,20 @@ before_script:
 
 - mkdir build
 - cd build
-- PKG_CONFIG_PATH=../icecream/lib/pkgconfig cmake ..
+- PKG_CONFIG_PATH=../icecream/lib/pkgconfig cmake .. -DCMAKE_INSTALL_PREFIX=$(pwd)/_inst
 
-script: make
+script:
+- make
+- make install
 
 addons:
   apt:
     packages:
     - cmake
     - qtbase5-dev
     - extra-cmake-modules
+    - asciidoc
+    - xsltproc # for asciidoc
     # for icecream
     - libcap-ng-dev
     - liblzo2-dev

CMakeLists.txt

@@ -37,28 +37,6 @@ set_package_properties(Icecream PROPERTIES
   URL "http://en.opensuse.org/Icecream"
   TYPE REQUIRED
 )
-find_package(Docbook2X)
-set_package_properties(Docbook2X PROPERTIES
-  DESCRIPTION "docbook2X converts DocBook documents into the traditional Unix man page format"
-  PURPOSE "Required for man-page generation"
-  URL "http://docbook2x.sourceforge.net/"
-)
-
-# add a target to generate API documentation with Doxygen
-find_package(Doxygen)
-set_package_properties(Doxygen PROPERTIES
-  TYPE OPTIONAL
-  DESCRIPTION "Doxygen documentation generator"
-  PURPOSE "Needed for generating API documentation (make doc)"
-)
-if(DOXYGEN_FOUND)
-  configure_file(${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile.cmake.in ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile @ONLY)
-  add_custom_target(doc
-    ${DOXYGEN_EXECUTABLE} ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile
-    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
-    COMMENT "Generating API documentation with Doxygen" VERBATIM
-  )
-endif()
 
 if(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER_ID STREQUAL "Intel")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")

doc/CMakeLists.txt

@@ -1,6 +1,27 @@
 # It's not possible to install the docbook right now (Qt-only project)
 #add_subdirectory(icemon)
 
-if(DOCBOOK_TO_MAN_EXECUTABLE)
-  install_docbook_man_page(icemon 1)
+find_program(ASCIIDOC asciidoc)
+find_program(A2X a2x)
+
+if(NOT ASCIIDOC OR NOT A2X)
+    message(WARNING "Could not find asciidoc or a2x, manual page will not be generated.")
+else()
+    add_custom_target(manpage ALL)
+    add_custom_command(
+        TARGET manpage
+        COMMAND ${ASCIIDOC} -a revnumber=${PROJECT_VERSION} -d manpage -b docbook
+            -o ${CMAKE_CURRENT_BINARY_DIR}/icemon.xml ${CMAKE_CURRENT_SOURCE_DIR}/icemon.adoc
+        MAIN_DEPENDENCY ${CMAKE_CURRENT_SOURCE_DIR}/icemon.adoc
+        BYPRODUCTS ${CMAKE_CURRENT_BINARY_DIR}/icemon.xml)
+    add_custom_command(
+        TARGET manpage
+        COMMAND ${A2X} --doctype manpage --format manpage
+             ${CMAKE_CURRENT_BINARY_DIR}/icemon.xml
+        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+        MAIN_DEPENDENCY ${CMAKE_CURRENT_BINARY_DIR}/icemon.xml
+        BYPRODUCTS ${CMAKE_CURRENT_BINARY_DIR}/icemon.1)
+    install(
+        FILES ${CMAKE_CURRENT_BINARY_DIR}/icemon.1
+        DESTINATION ${CMAKE_INSTALL_MANDIR}/man1)
 endif()

doc/icemon.adoc

@@ -0,0 +1,54 @@
+ICEMON(1)
+=========
+:doctype: manpage
+:man source: icemon
+:man version: {revnumber}
+:man manual: Icemon User's Manual
+
+
+Name
+----
+icemon - Icecream network monitor
+
+
+Synopsis
+--------
+*icemon* _OPTION_
+
+
+Description
+-----------
+Icemon is a graphical application to view an Icecream compile network and monitor its traffic.
+
+
+
+Options
+-------
+
+*-h, --help*::
+    Print help message and exit.
+
+*-n, --netname* _net-name_::
+    The name of the Icecream network `icemon` should connect to.
+
+*-s, --scheduler* _host-name_::
+    The hostname of the Icecream scheduler `icemon` should connect to.
+
+
+
+See Also
+--------
+ifdef::env-github[]
+link:https://github.com/icecc/icecream/tree/master/doc/icecream.adoc[icecream(7)]
+link:https://github.com/icecc/icecream/tree/master/doc/icecc-scheduler.adoc[icecc-scheduler(1)]
+link:https://github.com/icecc/icecream/tree/master/doc/iceccd.adoc[iceccd(1)]
+endif::[]
+
+ifndef::env-github[]
+icecream(7), icecc-scheduler(1), iceccd(1)
+endif::[]
+
+
+Website
+-------
+Project home: https://github.com/icecc/icemon