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Revision 1.1 - (hide annotations) (download)
Thu Mar 17 18:23:40 2011 UTC (3 years, 5 months ago) by vadimk
Branch: MAIN
vmware-bundle eclass. provides extract functionality.

1 vadimk 1.1 # Copyright 1999-2011 Gentoo Foundation
2     # Distributed under the terms of the GNU General Public License v2
3     # $Header$
4    
5     # @ECLASS: vmware-bundle.eclass
6     # @MAINTAINER: <vmware@gentoo.org>
7     # @BLURB: Provides extract functionality for vmware products bundles
8     # @DESCRIPTION:
9     #
10     # @AUTHOR: Matt Whitlock <matt@whitlock.name>
11    
12     DEPEND="dev-libs/libxslt"
13    
14     vmware-bundle_extract-bundle-component() {
15     local bundle=${1:?} component=${2:?} dest=${3:-${2}}
16     cat > "${T}"/list-bundle-components.xsl <<-EOF
17     <?xml version="1.0" encoding="ISO-8859-1"?>
18     <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
19     <xsl:output omit-xml-declaration="yes"/>
20     <xsl:template match="text()"/>
21     <xsl:template match="/bundle/components/component">
22     <xsl:value-of select="@offset"/>
23     <xsl:text> </xsl:text>
24     <xsl:value-of select="@size"/>
25     <xsl:text> </xsl:text>
26     <xsl:value-of select="@name"/>
27     <xsl:text>&#10;</xsl:text>
28     </xsl:template>
29     </xsl:stylesheet>
30     EOF
31     local -i bundle_size=$(stat -L -c'%s' "${bundle}")
32     local -i bundle_manifestOffset=$(od -An -j$((bundle_size-36)) -N4 -tu4 "${bundle}")
33     local -i bundle_manifestSize=$(od -An -j$((bundle_size-40)) -N4 -tu4 "${bundle}")
34     local -i bundle_dataOffset=$(od -An -j$((bundle_size-44)) -N4 -tu4 "${bundle}")
35     local -i bundle_dataSize=$(od -An -j$((bundle_size-52)) -N8 -tu8 "${bundle}")
36     tail -c+$((bundle_manifestOffset+1)) "${bundle}" 2> /dev/null | head -c$((bundle_manifestSize)) |
37     xsltproc "${T}"/list-bundle-components.xsl - |
38     while read -r component_offset component_size component_name ; do
39     if [[ ${component_name} == ${component} ]] ; then
40     ebegin "Extracting '${component_name}' component from '$(basename "${bundle}")'"
41     vmware-bundle_extract-component "${bundle}" "${dest}" $((bundle_dataOffset+component_offset))
42     eend
43     fi
44     done
45     }
46    
47     vmware-bundle_extract-component() {
48     local component=${1:?} dest=${2:-.}
49     local -i offset=${3}
50     cat > "${T}"/list-component-files.xsl <<-EOF
51     <?xml version="1.0" encoding="ISO-8859-1"?>
52     <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
53     <xsl:output omit-xml-declaration="yes"/>
54     <xsl:template match="text()"/>
55     <xsl:template match="/component/fileset/file">
56     <xsl:value-of select="@offset"/>
57     <xsl:text> </xsl:text>
58     <xsl:value-of select="@compressedSize"/>
59     <xsl:text> </xsl:text>
60     <xsl:value-of select="@uncompressedSize"/>
61     <xsl:text> </xsl:text>
62     <xsl:value-of select="@path"/>
63     <xsl:text>&#10;</xsl:text>
64     </xsl:template>
65     </xsl:stylesheet>
66     EOF
67     local -i component_manifestOffset=$(od -An -j$((offset+9)) -N4 -tu4 "${component}")
68     local -i component_manifestSize=$(od -An -j$((offset+13)) -N4 -tu4 "${component}")
69     local -i component_dataOffset=$(od -An -j$((offset+17)) -N4 -tu4 "${component}")
70     local -i component_dataSize=$(od -An -j$((offset+21)) -N8 -tu8 "${component}")
71     tail -c+$((offset+component_manifestOffset+1)) "${component}" 2> /dev/null |
72     head -c$((component_manifestSize)) | xsltproc "${T}"/list-component-files.xsl - |
73     while read -r file_offset file_compressedSize file_uncompressedSize file_path ; do
74     if [[ ${file_path} ]] ; then
75     echo -n '.'
76     file_path="${dest}/${file_path}"
77     mkdir -p "$(dirname "${file_path}")" || die
78     tail -c+$((offset+component_dataOffset+file_offset+1)) "${component}" 2> /dev/null |
79     head -c$((file_compressedSize)) | gzip -cd > "${file_path}" || die
80     fi
81     done
82     echo
83     }

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