Bug 767174

Summary: createrepo fails if lzma is not installed on Fedora 16
Product: [Fedora] Fedora Reporter: Jay Dobies <jason.dobies>
Component: createrepoAssignee: Luke Macken <lmacken>
Status: CLOSED NEXTRELEASE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 16CC: james.antill, lmacken, pfrields, pkilambi
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Hardware: Unspecified   
OS: Unspecified   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2011-12-13 16:09:02 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Jay Dobies 2011-12-13 13:46:10 UTC 
It looks like createrepo is crashing (the bug notification tool pops up). I'm seeing both:

_read_gzip_header:IOError: Not a gzipped file
or
compressOpen:AttributeError: 'NoneType' object has no attribute 'LZMAFile'

I believe it's the TestErrata test that's calling createrepo since most of the test failures revolve around assertions in there, but I'm not 100% sure.
Comment 1 Pradeep Kilambi 2011-12-13 14:51:10 UTC 
This looks like a missing dependency in createrepo. Looking at the createrepo code this happens when createrepo is not able to import lzma module. 

If i do,

$ yum install pyliblzma

this error will go away. reassigning to createrepo component.

more info on traceback,


ModifyRepoError: Traceback (most recent call last):
  File "/usr/share/createrepo/modifyrepo.py", line 217, in <module>
    ret = main(sys.argv[1:])
  File "/usr/share/createrepo/modifyrepo.py", line 210, in main
    repomd.add(metadata, mdtype=opts.mdtype)
  File "/usr/share/createrepo/modifyrepo.py", line 123, in add
    newmd = compressOpen(destmd, mode='wb', compress_type=self.compress_type)
  File "/usr/lib/python2.7/site-packages/createrepo/utils.py", line 129, in compressOpen
    return lzma.LZMAFile(fn, mode)
AttributeError: 'NoneType' object has no attribute 'LZMAFile'

looking at createrepo/utils.py

try:
    import lzma
    _available_compression.append('xz')
except ImportError:
    lzma = None

if lzma is not able to import, it defaults to None, but the compressOpen method tryies to do a return lzma.LZMAFile(fn, mode) even if lzma is None.
Comment 2 seth vidal 2011-12-13 16:09:02 UTC 
createrepo in updates-testing has this requirement.