ccache: restore usage of asciidoc for manpage

We don't want to use ruby because that brings rust through
librsvg and graphviz into the build, which is bad for base-chroot
builds.

srcpkgs/ccache/patches/asciidoc.patch

@@ -0,0 +1,79 @@
+--- a/doc/CMakeLists.txt
++++ b/doc/CMakeLists.txt
+@@ -1,54 +1,37 @@
+-find_program(ASCIIDOCTOR_EXE asciidoctor)
+-mark_as_advanced(ASCIIDOCTOR_EXE) # Don't show in CMake UIs
++find_program(ASCIIDOC_EXE asciidoc)
++mark_as_advanced(ASCIIDOC_EXE) # Don't show in CMake UIs
+ 
+-if(NOT ASCIIDOCTOR_EXE)
++if(NOT ASCIIDOC_EXE)
+   message(WARNING "Could not find asciidoctor; documentation will not be generated")
+ else()
+-  function(generate_doc backend adoc_file output_file)
+-    get_filename_component(base_name "${adoc_file}" NAME_WE)
+-    add_custom_command(
+-      OUTPUT "${output_file}"
+-      COMMAND
+-        ${ASCIIDOCTOR_EXE}
+-          -o "${output_file}"
+-          -a revnumber="${CCACHE_VERSION}"
+-          -a icons=font
+-          -a toc=left
+-          -a sectanchors
+-          -a stylesheet="${CMAKE_CURRENT_SOURCE_DIR}/ccache-doc.css"
+-          -b "${backend}"
+-          "${CMAKE_SOURCE_DIR}/${adoc_file}"
+-      MAIN_DEPENDENCY "${CMAKE_SOURCE_DIR}/${adoc_file}"
+-      DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/ccache-doc.css"
+-    )
+-    set(doc_files "${doc_files}" "${output_file}" PARENT_SCOPE)
+-  endfunction()
+-
+-  #
+-  # HTML documentation
+-  #
+-  generate_doc(html    LICENSE.adoc     LICENSE.html)
+-  generate_doc(html    doc/AUTHORS.adoc AUTHORS.html)
+-  generate_doc(html    doc/MANUAL.adoc  MANUAL.html)
+-  generate_doc(html    doc/NEWS.adoc    NEWS.html)
+-  add_custom_target(doc-html DEPENDS "${doc_files}")
+-
+   #
+   # Man page
+   #
+-  generate_doc(manpage doc/MANUAL.adoc ccache.1.tmp)
++  find_program(A2X_EXE a2x)
++  mark_as_advanced(A2X_EXE) # Don't show in CMake UIs
++  # MANUAL.adoc -> MANUAL.xml -> man page
++  add_custom_command(
++    OUTPUT MANUAL.xml
++    COMMAND
++      ${ASCIIDOC_EXE}
++        -o -
++        -a revnumber=${CCACHE_VERSION}
++        -d manpage
++        -b docbook "${CMAKE_SOURCE_DIR}/doc/MANUAL.adoc"
++      | perl -pe 's!<literal>\(.*?\)</literal>!<emphasis role="strong">\\1</emphasis>!g'
++          >MANUAL.xml
++    MAIN_DEPENDENCY "${CMAKE_SOURCE_DIR}/doc/MANUAL.adoc"
++  )
+   add_custom_command(
+     OUTPUT ccache.1
+-    # Convert monospace to bold since that's typically rendered better when
+-    # viewing the man page.
+-    COMMAND perl -pe "'s!\\\\f\\(CR(.*?)\\\\fP!\\\\fB\\1\\\\fP!g'" ccache.1.tmp >ccache.1
+-    MAIN_DEPENDENCY ccache.1.tmp
++    COMMAND ${A2X_EXE} --doctype manpage --format manpage MANUAL.xml
++    MAIN_DEPENDENCY MANUAL.xml
+   )
++  add_custom_target(doc-man-page DEPENDS ccache.1)
+   install(
+     FILES "${CMAKE_CURRENT_BINARY_DIR}/ccache.1"
+     DESTINATION "${CMAKE_INSTALL_MANDIR}/man1"
+   )
+-  add_custom_target(doc-man-page DEPENDS ccache.1)
+ 
+-  add_custom_target(doc ALL DEPENDS doc-html doc-man-page)
++  add_custom_target(doc ALL DEPENDS ccache.1)
+ endif()

srcpkgs/ccache/template

@@ -4,7 +4,7 @@ version=4.5.1
 revision=2
 build_style=cmake
 configure_args="-DENABLE_TESTING=OFF -DREDIS_STORAGE_BACKEND=OFF"
-hostmakedepends="ruby-asciidoctor perl"
+hostmakedepends="asciidoc perl"
 makedepends="libzstd-devel zlib-devel"
 short_desc="Fast C/C++ Compiler Cache"
 maintainer="Enno Boland <gottox@voidlinux.org>"