DaveMalcolm/YumUnderPyPy

I've been experimenting with running yum under PyPy.

This is with pypy-1.9 rpms on an x86_64 Fedora 17 guest

What I had to do

• build extension modules:
  • bug in distutils/sysconfig_pypy.py with more than one option in CFLAGS (need to split on spaces)
    • TODO: add patch to our rpms
    • TODO: send patch upstream
  • rpm: I used rawhide (=f18)'s rpm.rpm, recompiling with pypy as per my python3 patch in https://bugzilla.redhat.com/show_bug.cgi?id=531543
    • needed PyInt_AsUnsignedLongLongMask; merged upstream as https://bugs.pypy.org/issue1211, and in my pypy rpms from 1.9-3 onwards
  • yum-metadata-parser (compiled OK)
  • pycurl (compiled OK)
• I hacked out a call to os.statvfs from yum/yumRepo.py:_getFile (line 795)
  • TODO: implement it for PyPy

Running it

 sudo pypy /usr/bin/yum YUM-ARGUMENTS

with suitable PYTHONPATH= and LD_LIBRARY_PATH= hacks to deal with my hacked up installation of extension modules

What I've tested so far:

• yum history (looks sane)
• yum --assume-no update PACKAGE (looks sane)
• yum --assume-no remove glibc (looks sane; same output as with CPython, apart from this:

  --- yum-remove-glibc-cpython.out        2012-07-11 11:09:24.641179900 -0400
  +++ yum-remove-glibc-pypy.out   2012-07-11 11:08:37.211797078 -0400
  @@ -1,4 +1,5 @@
  -Loaded plugins: auto-update-debuginfo, langpacks, presto, refresh-packagekit
  +Plugin "refresh-packagekit" can't be imported
  +Loaded plugins: auto-update-debuginfo, langpacks, presto
   Setting up Remove Process
   Resolving Dependencies
   --> Running transaction check

Other Notes

• Yum Benchmarks: http://yum.baseurl.org/wiki/YumBenchmarks