/[gentoo-x86]/eclass/vmware-bundle.eclass
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Contents of /eclass/vmware-bundle.eclass

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Revision 1.2 - (show annotations) (download)
Mon Aug 22 04:46:32 2011 UTC (2 years, 10 months ago) by vapier
Branch: MAIN
CVS Tags: HEAD
Changes since 1.1: +5 -5 lines
fix random bugs in eclass documentation, and convert to new @AUTHOR tag

1 # Copyright 1999-2011 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
3 # $Header: /var/cvsroot/gentoo-x86/eclass/vmware-bundle.eclass,v 1.1 2011/03/17 18:23:40 vadimk Exp $
4
5 # @ECLASS: vmware-bundle.eclass
6 # @MAINTAINER:
7 # vmware@gentoo.org
8 # @AUTHOR:
9 # Matt Whitlock <matt@whitlock.name>
10 # @BLURB: Provides extract functionality for vmware products bundles
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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