xref: /freebsd/contrib/xz/doxygen/update-doxygen (revision 783d3ff6)
1#!/bin/sh
2# SPDX-License-Identifier: 0BSD
3
4#############################################################################
5#
6# Updates the Doxygen generated documentation files in the source tree.
7# If the doxygen command is not installed, it will exit with an error.
8# This script can generate Doxygen documentation for all source files or for
9# just liblzma API header files.
10#
11# It is recommended to use this script to update the Doxygen-generated HTML
12# files since this will include the package version in the output and,
13# in case of liblzma API docs, strip JavaScript files from the output.
14#
15#############################################################################
16#
17# Authors: Jia Tan
18#          Lasse Collin
19#
20#############################################################################
21
22set -e
23
24if type doxygen > /dev/null 2>&1; then
25	:
26else
27	echo "doxygen/update-doxygen: 'doxygen' command not found." >&2
28	echo "doxygen/update-doxygen: Skipping Doxygen docs generation." >&2
29	exit 1
30fi
31
32if test ! -f Doxyfile; then
33	cd `dirname "$0"` || exit 1
34	if test ! -f Doxyfile; then
35		echo "doxygen/update-doxygen: Cannot find Doxyfile" >&2
36		exit 1
37	fi
38fi
39
40# Get the package version so that it can be included in the generated docs.
41PACKAGE_VERSION=`cd .. && sh build-aux/version.sh` || exit 1
42
43# If no arguments are specified, default to generating liblzma API header
44# documentation only.
45case $1 in
46	'' | api)
47		# Remove old documentation before re-generating the new.
48		rm -rf ../doc/api
49
50		# Generate the HTML documentation by preparing the Doxyfile
51		# in stdin and piping the result to the doxygen command.
52		# With Doxygen, the last assignment of a value to a tag will
53		# override any earlier assignment. So, we can use this
54		# feature to override the tags that need to change between
55		# "api" and "internal" modes.
56		(
57			cat Doxyfile
58			echo "PROJECT_NUMBER         = $PACKAGE_VERSION"
59		) | doxygen -
60
61		# As of Doxygen 1.8.0 - 1.9.6 and the Doxyfile options we use,
62		# the output is good without any JavaScript. Unfortunately
63		# Doxygen doesn't have an option to disable JavaScript usage
64		# completely so we strip it away with the hack below.
65		#
66		# Omitting the JavaScript code avoids some license hassle
67		# as jquery.js is fairly big, it contains more than jQuery
68		# itself, and doesn't include the actual license text (it
69		# only refers to the MIT license by name).
70		echo "Stripping JavaScript from Doxygen output..."
71		for F in ../doc/api/*.html
72		do
73			sed 's/<script [^>]*><\/script>//g
74				s/onclick="[^"]*"//g' \
75				"$F" > ../doc/api/tmp
76			mv -f ../doc/api/tmp "$F"
77		done
78		rm -f ../doc/api/*.js
79		;;
80
81	internal)
82		# The docs from internal aren't for distribution so
83		# the JavaScript files aren't an issue here.
84		rm -rf ../doc/internal
85		(
86			cat Doxyfile
87			echo "PROJECT_NUMBER         = $PACKAGE_VERSION"
88			echo 'PROJECT_NAME           = "XZ Utils"'
89			echo 'STRIP_FROM_PATH        = ../src'
90			echo 'INPUT                  = ../src'
91			echo 'HTML_OUTPUT            = internal'
92			echo 'EXTRACT_PRIVATE        = YES'
93			echo 'EXTRACT_STATIC         = YES'
94			echo 'EXTRACT_LOCAL_CLASSES  = YES'
95			echo 'SEARCHENGINE           = YES'
96		) | doxygen -
97		;;
98
99	*)
100		echo "doxygen/update-doxygen: Error: mode argument '$1'" \
101			"is not supported." >&2
102		echo "doxygen/update-doxygen: Supported modes:" >&2
103		echo "doxygen/update-doxygen: - 'api' (default):" \
104			"liblzma API docs into doc/api" >&2
105		echo "doxygen/update-doxygen: - 'internal':"\
106			"internal docs into doc/internal" >&2
107		exit 1
108		;;
109esac
110