[oe] [PATCH] package_deb: create md5sums control files
Michael Smith
msmith at cbnco.com
Mon Aug 31 16:38:22 UTC 2009
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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