Switch from AsciiDoc to Asciidoctor.

Switch the markup text processor for files in the docbook directory from
AsciiDoc to Asciidoctor. Asciidoctor has several useful features (such
as direct PDF output) and is actively developed. It's written in Ruby
but that dependency can be sidestepped with AsciidoctorJ, a
self-contained bundle that only depends on the JRE.

The current toolchain targets require Python, AsciiDoc, DocBook XML,
DocBook XSL, Java, FOP, xsltproc, lynx, and the HTMLHelp compiler:

HTML: AsciiDoc → DocBook XML → xsltproc + DocBook XSL
Chunked HTML: AsciiDoc → DocBook XML → xsltproc + DocBook XSL
PDF: AsciiDoc → DocBook XML → xsltproc + DocBook XSL → FOP
HTMLHelp: AsciiDoc → DocBook XML → xsltproc + DocBook XSL → HHC

This change removes the AsciiDoc and FOP requirements and adds either
AsciidoctorJ or Asciidoctor + Ruby:

HTML: Asciidoctor → DocBook XML → xsltproc + DocBook XSL
Chunked HTML: Asciidoctor → DocBook XML → xsltproc + DocBook XSL
PDF: Asciidoctor
HTMLHelp: Asciidoctor → DocBook XML → xsltproc + DocBook XSL → HHC

Ideally we could generate all of these using AsciidoctorJ, Java, and
lynx. Unfortunately we're not there yet.

The release notes depend on several macros (ws-buglink, ws-salink,
cve-idlink, sort-and-group). Add Asciidoctor (Ruby) equivalents.

Remove the BUILD_xxx_GUIDES CMake options and add various output targets
automatically. This means that you have to build the various documentation
targets explicitly.

Change-Id: I31930677a656b99b1c6839bb6c33a13db951eb9a
Reviewed-on: https://code.wireshark.org/review/25668
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot
Reviewed-by: Gerald Combs <gerald@wireshark.org>

3 files changed, 2 insertions, 56 deletions

diff --git a/tools/Makefile.am b/tools/Makefile.am
index 5a194c75d8..2bcb22722e 100644
--- a/tools/Makefile.am
+++ b/tools/Makefile.am
@@ -83,7 +83,6 @@ EXTRA_DIST = \
 	randpkt-test.sh					\
 	rdps.py						\
 	rpm_setup.sh 					\
-	runa2x.sh					\
 	test-common.sh					\
 	test-captures.sh				\
 	textify.ps1					\
diff --git a/tools/checklicenses.py b/tools/checklicenses.py
index f7ed3043d0..ae370dc721 100755
--- a/tools/checklicenses.py
+++ b/tools/checklicenses.py
@@ -95,10 +95,10 @@ PATH_SPECIFIC_WHITELISTED_LICENSES = {
     'doc/': [
         'UNKNOWN',
     ],
-    'docbook/custom_layer_pdf.xsl': [
+    'docbook/custom_layer_chm.xsl': [
         'UNKNOWN',
     ],
-    'docbook/custom_layer_chm.xsl': [
+    'docbook/custom_layer_single_html.xsl': [
         'UNKNOWN',
     ],
     'docbook/ws.css' : [
diff --git a/tools/runa2x.sh b/tools/runa2x.sh
deleted file mode 100755
index 1c234f49ab..0000000000
--- a/tools/runa2x.sh
+++ /dev/null
@@ -1,53 +0,0 @@
-#!/bin/sh -xv
-
-#
-# runa2x.sh
-# Wrapper script for running Cygwin's a2x via CMake.
-#
-# Wireshark - Network traffic analyzer
-# By Gerald Combs <gerald@wireshark.org>
-# Copyright 2015 Gerald Combs
-#
-# 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, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
-#
-
-# Bugs:
-# - This script shouldn't exist. Unfortunately there doesn't appear
-#   to be a way to construct a Windows command line that can set the
-#   environment variables below, then run /usr/bin/a2x (which is a symlink).
-
-# Ensure cygwin bin dir is on the path if running under it
-if [[ $OSTYPE == "cygwin" ]]; then
-	PATH="$PATH:/usr/bin"
-else
-    >&2 echo "We're trying to limit the scope of this insanity to CMake + Cygwin"
-    exit 1
-fi
-
-LC_ALL=C
-export LC_ALL
-
-TZ=UTC
-export TZ
-
-PATH=/usr/bin
-export PATH
-
-PYTHONHOME=/
-export PYTHONHOME
-
-echo "running a2x with args $@"
-
-a2x "$@"