Re: [gentoo-dev] New feature proposition (make.conf)

[Chris Gianelloni <wolf31o2@gentoo.org>]

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On Sun, 2003-08-17 at 07:59, Philippe Lafoucrière wrote:
> > My thought is rather than remove the distfiles for the version you are
> > building, remove the distfiles for versions that have just been
> > uninstalled by clean or update (granted they aren't being used by the new
> > version as well). This way you only have the distfiles for what's
> > currently on your system.
> 
> I agree. I have a lot of files that should go to Trash in my distfiles.
> I have to remove them by hand. why keep
> 
> package_v1.0.tbz2
> package_v1.1.tbz2
> package_v1.2.tbz2
> package_v1.3.tbz2
> 
> where package_v1.3.tbz2 will only be used (not for packages with
> patches).

I don't remember where I got this, so I cannot give credit to the
person, but I find this is a great tool for removing distfiles for
packages you no longer have installed.

It is also in python, so portage integration could be a possibility.

-- 
Chris Gianelloni
Developer, Gentoo Linux

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#!/usr/bin/env python
# distclean.py - remove source files for Gentoo
# packages that are no longer installed
# Fredrik Arnerup (e97_far@e.kth.se), 2003
# Use with '-p' (pretend) flag to just get a list of files
# that would be removed
import sys, os, os.path, getopt, portage

opt_p = 0
try:
    if len(sys.argv) > 1:
        opt_p = getopt.getopt(sys.argv[1:], "p")[0][0][0] == '-p'
except getopt.GetoptError:
    pass

distdir = portage.config().environ()['DISTDIR']
print 'DISTDIR =', distdir
    
vartree = portage.db["/"]["vartree"]
packages = []
for name in vartree.getallnodes():
    packages.extend(vartree.dep_match(name))

files = {}
for package in packages:
    try:
        package_files = portage.portdb.aux_get(package, ['SRC_URI'])[0].split()
        package_files = [(url.split('/')[-1]) for url in package_files]
        for filename in package_files:
            files[filename] = 1
    except:
        print "Failed to get file list for", package

if not files:
    sys.exit("No package files found.  This can't be right.\n")

try:
    list = portage.listdir(distdir)
except os.OSError:
    sys.exit("Failed to read " + distdir)

size = 0; count = 0
for file in list:
    abs_file = distdir + '/' + file
    if (os.path.isfile(abs_file) and (not os.path.islink(abs_file)) 
        and (not file in files)):
        size += os.stat(abs_file).st_size
        count += 1
        if opt_p:
            print 'Would remove', abs_file
        else:
            try:
                os.remove(abs_file)
                print 'Removed', abs_file
            except OSError:
                print 'Failed to remove', abs_file


size /= 1024  ## KB
print "%i files, total size: %i KB" % (count, size)

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