summaryrefslogtreecommitdiff
blob: 74c7c1a07f5ce3bc3e99c4facd6e9d1c2cdaeeb0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
# Copyright 2007-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

# @ECLASS: java-osgi.eclass
# @MAINTAINER:
# java@gentoo.org
# @AUTHOR:
# Java maintainers <java@gentoo.org>
# @SUPPORTED_EAPIS: 5 6 7
# @PROVIDES: java-utils-2
# @BLURB: Java OSGi eclass
# @DESCRIPTION:
# This eclass provides functionality which is used by packages that need to be
# OSGi compliant. This means that the generated jars will have special headers
# in their manifests. Currently this is used only by Eclipse-3.3 - later we
# could extend this so that Gentoo Java system would be fully OSGi compliant.

case ${EAPI:-0} in
	[567]) ;;
	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
esac

if [[ -z ${_JAVA_OSGI_ECLASS} ]] ; then
_JAVA_OSGI_ECLASS=1

inherit java-utils-2

# @ECLASS-VARIABLE: _OSGI_T
# @INTERNAL
# @DESCRIPTION:
# We define _OSGI_T so that it does not contain a slash at the end.
# According to Paludis guys, there is currently a proposal for EAPIs that
# would require all variables to end with a slash.
_OSGI_T="${T/%\//}"

# must get Diego to commit something like this to portability.eclass
_canonicalise() {
	if type -p realpath > /dev/null; then
		realpath "${@}"
	elif type -p readlink > /dev/null; then
		readlink -f "${@}"
	else
		# can't die, subshell
		eerror "No readlink nor realpath found, cannot canonicalise"
	fi
}

# @FUNCTION: _java-osgi_plugin
# @USAGE: <plugin name>
# @INTERNAL
# @DESCRIPTION:
# This is an internal function, not to be called directly.
#
# @CODE
#	_java-osgi_plugin "JSch"
# @CODE
#
# @param $1 - bundle name
_java-osgi_plugin() {
	# We hardcode Gentoo as the vendor name

	cat > "${_OSGI_T}/tmp_jar/plugin.properties" <<-EOF
	bundleName="${1}"
	vendorName="Gentoo"
	EOF
}

# @FUNCTION: _java-osgi_makejar
# @USAGE: <jar name> <symbolic name> <bundle name> <header name>
# @INTERNAL
# @DESCRIPTION:
# This is an internal function, not to be called directly.
#
# @CODE
#	_java-osgi_makejar "dist/${PN}.jar" "com.jcraft.jsch" "JSch" "com.jcraft.jsch, com.jcraft.jsch.jce;x-internal:=true"
# @CODE
#
# @param $1 - name of jar to repackage with OSGi
# @param $2 - bundle symbolic name
# @param $3 - bundle name
# @param $4 - export-package header
_java-osgi_makejar() {
	debug-print-function ${FUNCNAME} "$@"

	(( ${#} < 4 )) && die "Four arguments are needed for _java-osgi_makejar()"

	local absoluteJarPath="$(_canonicalise ${1})"
	local jarName="$(basename ${1})"

	mkdir "${_OSGI_T}/tmp_jar" || die "Unable to create directory ${_OSGI_T}/tmp_jar"
	[[ -d "${_OSGI_T}/osgi" ]] || mkdir "${_OSGI_T}/osgi" || die "Unable to create directory ${_OSGI_T}/osgi"

	cd "${_OSGI_T}/tmp_jar" && jar xf "${absoluteJarPath}" && cd - > /dev/null \
		 || die "Unable to uncompress correctly the original jar"

	cat > "${_OSGI_T}/tmp_jar/META-INF/MANIFEST.MF" <<-EOF
	Manifest-Version: 1.0
	Bundle-ManifestVersion: 2
	Bundle-Name: %bundleName
	Bundle-Vendor: %vendorName
	Bundle-Localization: plugin
	Bundle-SymbolicName: ${2}
	Bundle-Version: ${PV}
	Export-Package: ${4}
	EOF

	_java-osgi_plugin "${3}"

	jar cfm "${_OSGI_T}/osgi/${jarName}" "${_OSGI_T}/tmp_jar/META-INF/MANIFEST.MF" \
		-C "${_OSGI_T}/tmp_jar/" . > /dev/null || die "Unable to recreate the OSGi compliant jar"
	rm -rf "${_OSGI_T}/tmp_jar"
}

# @FUNCTION: @java-osgi_dojar
# @USAGE: <jar name> <symbolic name> <bundle name> <header name>
# @DESCRIPTION:
# Rewrites a jar, and produce an OSGi compliant jar from arguments given on the command line.
# The arguments given correspond to the minimal set of headers
# that must be present on a Manifest file of an OSGi package.
# If you need more headers, you should use the *-fromfile functions below,
# that create the Manifest from a file.
# It will call java-pkg_dojar at the end.
#
# @CODE
#	java-osgi_dojar "dist/${PN}.jar" "com.jcraft.jsch" "JSch" "com.jcraft.jsch, com.jcraft.jsch.jce;x-internal:=true"
# @CODE
#
# @param $1 - name of jar to repackage with OSGi
# @param $2 - bundle symbolic name
# @param $3 - bundle name
# @param $4 - export-package-header
java-osgi_dojar() {
	debug-print-function ${FUNCNAME} "$@"
	local jarName="$(basename ${1})"
	_java-osgi_makejar "$@"
	java-pkg_dojar "${_OSGI_T}/osgi/${jarName}"
}

# @FUNCTION: java-osgi_newjar
# @USAGE: <jar name> <symbolic name> <bundle name> <header name>
# @DESCRIPTION:
# Rewrites a jar, and produce an OSGi compliant jar.
# The arguments given correspond to the minimal set of headers
# that must be present on a Manifest file of an OSGi package.
# If you need more headers, you should use the *-fromfile functions below,
# that create the Manifest from a file.
# It will call java-pkg_newjar at the end.
#
# @CODE
#	java-osgi_newjar "dist/${PN}.jar" "com.jcraft.jsch" "JSch" "com.jcraft.jsch, com.jcraft.jsch.jce;x-internal:=true"
# @CODE
#
# @param $1 - name of jar to repackage with OSGi
# @param $2 (optional) - name of the target jar. It will default to package name if not specified.
# @param $3 - bundle symbolic name
# @param $4 - bundle name
# @param $5 - export-package header
java-osgi_newjar() {
	debug-print-function ${FUNCNAME} "$@"
	local jarName="$(basename $1)"

	if (( ${#} > 4 )); then
		_java-osgi_makejar "${1}" "${3}" "${4}" "${5}"
		java-pkg_newjar "${_OSGI_T}/osgi/${jarName}" "${2}"
	else
		_java-osgi_makejar "$@"
		java-pkg_newjar "${_OSGI_T}/osgi/${jarName}"
	fi
}

# @FUNCTION:_java-osgi_makejar-fromfile
# @USAGE: <jar to repackage with OSGi> <Manifest file> <bundle name> <version rewriting>
# @INTERNAL
# @DESCRIPTION:
# This is an internal function, not to be called directly.
#
# @CODE
#	_java-osgi_makejar-fromfile "dist/${PN}.jar" "${FILESDIR}/MANIFEST.MF" "JSch" 1
# @CODE
#
# @param $1 - name of jar to repackage with OSGi
# @param $2 - path to the Manifest file
# @param $3 - bundle name
# @param $4 - automatic version rewriting (0 or 1)
_java-osgi_makejar-fromfile() {
	debug-print-function ${FUNCNAME} "$@"

	((${#} < 4)) && die "Four arguments are needed for _java-osgi_makejar-fromfile()"

	local absoluteJarPath="$(_canonicalise ${1})"
	local jarName="$(basename ${1})"

	mkdir "${_OSGI_T}/tmp_jar" || die "Unable to create directory ${_OSGI_T}/tmp_jar"
	[[ -d "${_OSGI_T}/osgi" ]] || mkdir "${_OSGI_T}/osgi" || die "Unable to create directory ${_OSGI_T}/osgi"

	cd "${_OSGI_T}/tmp_jar" && jar xf "${absoluteJarPath}" && cd - > /dev/null \
		|| die "Unable to uncompress correctly the original jar"

	[[ -e "${2}" ]] || die "Manifest file ${2} not found"

	# We automatically change the version if automatic version rewriting is on

	if (( ${4} )); then
		cat "${2}" | sed "s/Bundle-Version:.*/Bundle-Version: ${PV}/" > \
			"${_OSGI_T}/tmp_jar/META-INF/MANIFEST.MF"
	else
		cat "${2}" > "${_OSGI_T}/tmp_jar/META-INF/MANIFEST.MF"
	fi

	_java-osgi_plugin "${3}"

	jar cfm "${_OSGI_T}/osgi/${jarName}" "${_OSGI_T}/tmp_jar/META-INF/MANIFEST.MF" \
		-C "${_OSGI_T}/tmp_jar/" . > /dev/null || die "Unable to recreate the OSGi compliant jar"
	rm -rf "${_OSGI_T}/tmp_jar"
}

# @FUNCTION: java-osgi_newjar-fromfile
# @USAGE: <jar to repackage with OSGi> <Manifest file> <bundle name> <version rewriting>
# @DESCRIPTION:
# This function produces an OSGi compliant jar from a given manifest file.
# The Manifest Bundle-Version header will be replaced by the current version
# of the package, unless the --no-auto-version option is given.
# It will call java-pkg_newjar at the end.
#
# @CODE
#	java-osgi_newjar-fromfile "dist/${PN}.jar" "${FILESDIR}/MANIFEST.MF" "Standard Widget Toolkit for GTK 2.0"
# @CODE
#
# @param $opt
#	--no-auto-version - This option disables automatic rewriting of the
#		version in the Manifest file
#
# @param $1 - name of jar to repackage with OSGi
# @param $2 (optional) - name of the target jar. It will default to package name if not specified.
# @param $3 - path to the Manifest file
# @param $4 - bundle name
java-osgi_newjar-fromfile() {
	debug-print-function ${FUNCNAME} "$@"
	local versionRewriting=1

	if [[ "${1}" == "--no-auto-version" ]]; then
		versionRewriting=0
		shift
	fi
	local jarName="$(basename ${1})"

	if (( ${#} > 3 )); then
		_java-osgi_makejar-fromfile "${1}" "${3}" "${4}" "${versionRewriting}"
		java-pkg_newjar "${_OSGI_T}/osgi/${jarName}" "${2}"
	else
		_java-osgi_makejar-fromfile "$@" "${versionRewriting}"
		java-pkg_newjar "${_OSGI_T}/osgi/${jarName}"
	fi
}

# @FUNCTION: java-osgi_dojar-fromfile
# @USAGE: <jar to repackage with OSGi> <Manifest file> <bundle name>
# @DESCRIPTION:
# This function produces an OSGi compliant jar from a given manifestfile.
# The Manifest Bundle-Version header will be replaced by the current version
# of the package, unless the --no-auto-version option is given.
# It will call java-pkg_dojar at the end.
#
# @CODE
#	java-osgi_dojar-fromfile "dist/${PN}.jar" "${FILESDIR}/MANIFEST.MF" "Standard Widget Toolkit for GTK 2.0"
# @CODE
#
# @param $opt
#	--no-auto-version - This option disables automatic rewriting of the
#		version in the Manifest file
#
# @param $1 - name of jar to repackage with OSGi
# @param $2 - path to the Manifest file
# @param $3 - bundle name
java-osgi_dojar-fromfile() {
	debug-print-function ${FUNCNAME} "$@"
	local versionRewriting=1

	if [[ "${1}" == "--no-auto-version" ]]; then
		versionRewriting=0
		shift
	fi
	local jarName="$(basename ${1})"

	_java-osgi_makejar-fromfile "$@" "${versionRewriting}"
	java-pkg_dojar "${_OSGI_T}/osgi/${jarName}"
}

fi