[oe] [PATCH] package_deb: create md5sums control files

[Chris Larson]

Looks okay to me.  Not tested, but looks sane. :)

Acked-by: Chris Larson <clarson at kergoth.com>

On Mon, Aug 31, 2009 at 9:38 AM, Michael Smith<msmith at cbnco.com> wrote:
> OK to commit?
>
> Mike
>
> Michael Smith wrote:
>>
>> These are created with the package and get installed in
>> /var/dpkg/info. Afterward it's a great way to find modified files
>> for backup with a little shell script magic.
>>
>> It feels a bit weird to still use MD5, but that seems to be the
>> convention in the Debian world.
>>
>> Signed-off-by: Michael Smith <msmith at cbnco.com>
>> ---
>>  classes/package.bbclass     |   45
>> +++++++++++++++++++++++++++++++++++++++++++
>>  classes/package_deb.bbclass |    7 ++++++
>>  2 files changed, 52 insertions(+), 0 deletions(-)
>>
>> diff --git a/classes/package.bbclass b/classes/package.bbclass
>> index f6bd7c5..e3f55b5 100644
>> --- a/classes/package.bbclass
>> +++ b/classes/package.bbclass
>> @@ -202,6 +202,51 @@ def runstrip(file, d):
>>       return 1
>>  +def write_package_md5sums (root, outfile, ignorepaths):
>> +    # For each regular file under root, writes an md5sum to outfile.
>> +    # With thanks to patch.bbclass.
>> +    import bb, os
>> +
>> +    try:
>> +        # Python 2.5+
>> +        import hashlib
>> +        ctor = hashlib.md5
>> +    except ImportError:
>> +        import md5
>> +        ctor = md5.new
>> +
>> +    outf = file(outfile, 'w')
>> +
>> +    # Each output line looks like: "<hex...>  <filename without leading
>> slash>"
>> +    striplen = len(root)
>> +    if not root.endswith('/'):
>> +        striplen += 1
>> +
>> +    for walkroot, dirs, files in os.walk(root):
>> +        # Skip e.g. the DEBIAN directory
>> +        if walkroot[striplen:] in ignorepaths:
>> +            dirs[:] = []
>> +            continue
>> +
>> +        for name in files:
>> +            fullpath = os.path.join(walkroot, name)
>> +            if os.path.islink(fullpath) or (not
>> os.path.isfile(fullpath)):
>> +                continue
>> +
>> +            m = ctor()
>> +            f = file(fullpath, 'rb')
>> +            while True:
>> +                d = f.read(8192)
>> +                if not d:
>> +                    break
>> +                m.update(d)
>> +            f.close()
>> +
>> +            print >> outf, "%s  %s" % (m.hexdigest(),
>> fullpath[striplen:])
>> +            +    outf.close()
>> +
>> +
>>  #
>>  # Package data handling routines
>>  #
>> diff --git a/classes/package_deb.bbclass b/classes/package_deb.bbclass
>> index e5339a9..4a17010 100644
>> --- a/classes/package_deb.bbclass
>> +++ b/classes/package_deb.bbclass
>> @@ -243,6 +243,13 @@ python do_package_deb () {
>>                 conffiles.write('%s\n' % f)
>>             conffiles.close()
>>  +        try:
>> +            write_package_md5sums(root, os.path.join(controldir,
>> 'md5sums'),
>> +                                  ['DEBIAN'])
>> +        except:
>> +            bb.utils.unlockfile(lf)
>> +            raise
>> +
>>         os.chdir(basedir)
>>         ret = os.system("PATH=\"%s\" fakeroot dpkg-deb -b %s %s" %
>> (bb.data.getVar("PATH", localdata, 1), root, pkgoutdir))
>>         if ret != 0:
>
>
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-- 
Chris Larson
clarson at kergoth dot com
clarson at mvista dot com
Founder - BitBake, OpenEmbedded, OpenZaurus
Maintainer - Tslib
Software Engineer
MontaVista Software, Inc.