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Re: [Qemu-devel] [RFC PATCH v3 03/11] Add a script to extract VSS SDK he
From: |
Eric Blake |
Subject: |
Re: [Qemu-devel] [RFC PATCH v3 03/11] Add a script to extract VSS SDK headers on POSIX system |
Date: |
Tue, 21 May 2013 10:48:00 -0600 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130514 Thunderbird/17.0.6 |
On 05/21/2013 09:33 AM, Tomoki Sekiyama wrote:
> VSS SDK(*) setup.exe is only runnable on Windows. This adds a script
> to extract VSS SDK headers on POSIX-systems using msitools.
>
> * http://www.microsoft.com/en-us/download/details.aspx?id=23490
>
> From: Paolo Bonzini <address@hidden>
> Signed-off-by: Tomoki Sekiyama <address@hidden>
> ---
> scripts/extract-vsssdk-headers | 25 +++++++++++++++++++++++++
> 1 file changed, 25 insertions(+)
> create mode 100755 scripts/extract-vsssdk-headers
>
> +#! /bin/bash
Since you are using bash...
> +
> +# extract-vsssdk-headers
> +# Author: Paolo Bonzini <address@hidden>
> +
> +set -e
> +if test $# = 0 || ! test -f "$1"; then
Why reject 0 arguments but not 2? Shouldn't the first check be test $#
!= 1?
> + echo 'Usage: extract-vsssdk-headers /path/to/setup.exe'
> + exit 1
> +fi
> +
> +# Extract .MSI file in the .exe, looking for the OLE compound
> +# document signature. Extra data at the end does not matter.
> +export LC_ALL=C
> +MAGIC=$'\xd0\xcf\x11\xe0\xa1\xb1\x1a\xe1'
> +offset=`grep -abom1 "$MAGIC" "$1" | sed -n 's/:/\n/; P' `
...I'd prefer $() over ``.
> +(dd of=/dev/null skip=$offset bs=1 count=0; cat) < "$1" > vsssdk.msi
> +
> +# Now extract the files.
> +tmpdir=tmp$$
> +mkdir $tmpdir
...also, this name is rather predictable; adding a $RANDOM might help
improve its quality.
> +msiextract -C $tmpdir vsssdk.msi
> +mv "$tmpdir/Program Files/Microsoft/VSSSDK72/inc" inc
> +rm -rf $tmpdir vsssdk.msi
What, no trap, to guarantee clean up of the temp directory even if you
Ctrl-C the script in the middle of a potentially long-running msiextract?
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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- Re: [Qemu-devel] [RFC PATCH v3 01/11] configure: Support configuring c++ compiler, (continued)
- [Qemu-devel] [RFC PATCH v3 07/11] qemu-ga: call Windows VSS requester in fsfreeze command handler, Tomoki Sekiyama, 2013/05/21
- [Qemu-devel] [RFC PATCH v3 08/11] qemu-ga: install Windows VSS provider on `qemu-ga -s install', Tomoki Sekiyama, 2013/05/21
- [Qemu-devel] [RFC PATCH v3 10/11] QMP/qemu-ga-client: make timeout longer for guest-fsfreeze-freeze command, Tomoki Sekiyama, 2013/05/21
- [Qemu-devel] [RFC PATCH v3 11/11] QMP/qmp.py: set locale for exceptions to display non-ascii messages correctly, Tomoki Sekiyama, 2013/05/21
- [Qemu-devel] [RFC PATCH v3 03/11] Add a script to extract VSS SDK headers on POSIX system, Tomoki Sekiyama, 2013/05/21
- Re: [Qemu-devel] [RFC PATCH v3 03/11] Add a script to extract VSS SDK headers on POSIX system,
Eric Blake <=
- Re: [Qemu-devel] [RFC PATCH v3 03/11] Add a script to extract VSS SDK headers on POSIX system, Laszlo Ersek, 2013/05/24
[Qemu-devel] [RFC PATCH v3 04/11] qemu-ga: Add an configure option to specify path to Windows VSS SDK, Tomoki Sekiyama, 2013/05/21