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# Copyright 1999-2011 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# @ECLASS: vmware-bundle.eclass
# @MAINTAINER:
# vmware@gentoo.org
# @AUTHOR:
# Matt Whitlock <matt@whitlock.name>
# @BLURB: Provides extract functionality for vmware products bundles
DEPEND="dev-libs/libxslt"
vmware-bundle_extract-bundle-component() {
local bundle=${1:?} component=${2:?} dest=${3:-${2}}
cat > "${T}"/list-bundle-components.xsl <<-EOF
<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output omit-xml-declaration="yes"/>
<xsl:template match="text()"/>
<xsl:template match="/bundle/components/component">
<xsl:value-of select="@offset"/>
<xsl:text> </xsl:text>
<xsl:value-of select="@size"/>
<xsl:text> </xsl:text>
<xsl:value-of select="@name"/>
<xsl:text> </xsl:text>
</xsl:template>
</xsl:stylesheet>
EOF
local -i bundle_size=$(stat -L -c'%s' "${bundle}")
local -i bundle_manifestOffset=$(od -An -j$((bundle_size-36)) -N4 -tu4 "${bundle}")
local -i bundle_manifestSize=$(od -An -j$((bundle_size-40)) -N4 -tu4 "${bundle}")
local -i bundle_dataOffset=$(od -An -j$((bundle_size-44)) -N4 -tu4 "${bundle}")
local -i bundle_dataSize=$(od -An -j$((bundle_size-52)) -N8 -tu8 "${bundle}")
tail -c+$((bundle_manifestOffset+1)) "${bundle}" 2> /dev/null | head -c$((bundle_manifestSize)) |
xsltproc "${T}"/list-bundle-components.xsl - |
while read -r component_offset component_size component_name ; do
if [[ ${component_name} == ${component} ]] ; then
ebegin "Extracting '${component_name}' component from '$(basename "${bundle}")'"
vmware-bundle_extract-component "${bundle}" "${dest}" $((bundle_dataOffset+component_offset))
eend
fi
done
}
vmware-bundle_extract-component() {
local component=${1:?} dest=${2:-.}
local -i offset=${3}
cat > "${T}"/list-component-files.xsl <<-EOF
<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output omit-xml-declaration="yes"/>
<xsl:template match="text()"/>
<xsl:template match="/component/fileset/file">
<xsl:value-of select="@offset"/>
<xsl:text> </xsl:text>
<xsl:value-of select="@compressedSize"/>
<xsl:text> </xsl:text>
<xsl:value-of select="@uncompressedSize"/>
<xsl:text> </xsl:text>
<xsl:value-of select="@path"/>
<xsl:text> </xsl:text>
</xsl:template>
</xsl:stylesheet>
EOF
local -i component_manifestOffset=$(od -An -j$((offset+9)) -N4 -tu4 "${component}")
local -i component_manifestSize=$(od -An -j$((offset+13)) -N4 -tu4 "${component}")
local -i component_dataOffset=$(od -An -j$((offset+17)) -N4 -tu4 "${component}")
local -i component_dataSize=$(od -An -j$((offset+21)) -N8 -tu8 "${component}")
tail -c+$((offset+component_manifestOffset+1)) "${component}" 2> /dev/null |
head -c$((component_manifestSize)) | xsltproc "${T}"/list-component-files.xsl - |
while read -r file_offset file_compressedSize file_uncompressedSize file_path ; do
if [[ ${file_path} ]] ; then
file_path="${dest}/${file_path}"
mkdir -p "$(dirname "${file_path}")" || die
if [[ ${file_compressedSize} -gt 0 ]] ; then
echo -n '.'
tail -c+$((offset+component_dataOffset+file_offset+1)) "${component}" 2> /dev/null |
head -c$((file_compressedSize)) | gzip -cd > "${file_path}" || die
else
echo -n 'x'
fi
fi
done
echo
}
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