128 lines
3.6 KiB
Python
128 lines
3.6 KiB
Python
import sys
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import os
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import magic
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import difflib
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import yum
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import operator
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def main(args):
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try:
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sourcedir, targetdir = args[1], args[2]
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except IndexError:
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print("invalid argument count")
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print("usage: python {0} sourcetree targettree".format(args[0]))
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sys.exit(2)
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if sourcedir.endswith("/"):
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sourcedir = sourcedir[:-1]
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if targetdir.endswith("/"):
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targetdir = targetdir[:-1]
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# parse sourcedir and targetdir
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sourcetree, targettree = {}, {}
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for tree, dir_name in [[sourcetree, sourcedir], [targettree, targetdir]]:
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for root, _dnames, fnames in os.walk(dir_name):
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for fname in fnames:
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fpath = os.path.join(root, fname)
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rpath = fpath.replace(dir_name, "", 1)
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tree[rpath] = fpath
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# set up magic
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m = magic.open(magic.MAGIC_NONE)
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m.load()
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# get files missing in source
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sys.stderr.write("getting files missing in source\n")
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for rpath in sorted(targettree.keys()):
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fpath = targettree[rpath]
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targetfile = fpath
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try:
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sourcefile = sourcetree[rpath]
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except KeyError:
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sys.stdout.write('Missing: %s\n' % rpath)
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continue
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# skip broken links
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if os.path.islink(targetfile) and not os.path.exists(targetfile):
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continue
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# check stat
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#sourcemode = os.stat(sourcefile).st_mode
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#targetmode = os.stat(targetfile).st_mode
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#if sourcemode != targetmode:
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# sys.stdout.write('Stat differ: %s\n' % rpath)
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# diff only text files
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ftype = m.file(fpath)
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if ftype not in ["ASCII text"]:
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continue
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with open(targetfile, "r") as fobj:
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target = fobj.readlines()
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with open(sourcefile) as fobj:
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source = fobj.readlines()
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# do the file diff
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for line in difflib.unified_diff(source, target,
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fromfile=sourcefile,
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tofile=targetfile):
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sys.stdout.write(line)
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# set up yum
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# XXX HACK
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# we don't want yum's stuff in the output
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# so we redirect stdout to /dev/null for a while...
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stdout = os.dup(1)
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null = open("/dev/null", "w")
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os.dup2(null.fileno(), 1)
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# here yum prints out some stuff we really don't care about
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yb = yum.YumBase()
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yb.doSackSetup()
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# give the stdout back
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os.dup2(stdout, 1)
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null.close()
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# get excessive files in source
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sys.stderr.write("getting excessive files in source\n")
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sizedict, pkgdict = {}, {}
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for rpath, fpath in sourcetree.items():
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# if file in target, skip it
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if rpath in targettree:
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continue
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# get file size
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try:
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sizeinbytes = os.path.getsize(fpath)
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except OSError:
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sizeinbytes = 0
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# set link size to 0
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islink = os.path.islink(fpath)
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if islink:
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sizeinbytes = 0
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pkglist = yb.whatProvides(rpath, None, None)
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pkglist = set(map(lambda pkgobj: pkgobj.name, pkglist))
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for pkg in pkglist:
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sizedict[pkg] = sizedict.get(pkg, 0) + sizeinbytes
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pkgdict[pkg] = pkgdict.get(pkg, []) + \
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[(rpath, sizeinbytes, islink)]
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# sort by size
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for pkg, _size in sorted(sizedict.items(), key=operator.itemgetter(1),
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reverse=True):
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for item in sorted(pkgdict[pkg]):
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sys.stdout.write("%s\t%s\n" % (pkg, item))
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if __name__ == "__main__":
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main(sys.argv)
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