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java-osgi.eclass
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java-osgi.eclass
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# Copyright 2007-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
# @ECLASS: java-osgi.eclass
# @MAINTAINER:
# @AUTHOR:
# Java maintainers <[email protected]>
# @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.
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}"
}