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Re: Recursively listing dependencies of a package?



Ville Skyttä wrote:
Hello,

Is there a tool that can list recursive dependencies (the whole dep tree) of a package from repodata? And even better if it can be also told to resolve things like /bin/sh and libfoo.so.x to package names and output a list of those package names (+ EVRA) only (not files or Provides).

What I've looked into so far:

yum deplist: is not recursive, or I don't know how to tell it to be. Also a bit verbose for my taste (lists all providers of deps).

repoquery -R --resolve: otherwise exactly what I'm looking for, but it's not recursive either. Adding --recursive to the options does not appear to make any difference.


Funny, I just answered exacly this question this afternoon. Attached is a slightly modified yummain.py and a small shell script that is suitable to generated package lists out of yum commands. Just virtually install the package you are interested in into an empty build root.

The scripts may need a little tweaking and if it breaks you keep the pieces.

Florian
#!/usr/bin/python -t
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Library General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
# Copyright 2005 Duke University 

"""
Entrance point for the yum command line interface.
"""

import os
import sys
import logging
import time # test purposes only

sys.path.append('/usr/share/yum-cli')

from yum import Errors
from yum import plugins
from yum import logginglevels
from yum import _
from yum.misc import to_unicode
import yum.misc
import cli


def main(args):
    """This does all the real work"""

    yum.misc.setup_locale(override_time=True)

    def exUserCancel():
        logger.critical(_('\n\nExiting on user cancel'))
        if unlock(): return 200
        return 1

    def exIOError(e):
        if e.errno == 32:
            logger.critical(_('\n\nExiting on Broken Pipe'))
        if unlock(): return 200
        return 1

    def exPluginExit(e):
        '''Called when a plugin raises PluginYumExit.

        Log the plugin's exit message if one was supplied.
        '''
        exitmsg = str(e)
        if exitmsg:
            logger.warn('\n\n%s', exitmsg)
        if unlock(): return 200
        return 1

    def exFatal(e):
        logger.critical('\n\n%s', to_unicode(e))
        if unlock(): return 200
        return 1

    def unlock():
        try:
            base.closeRpmDB()
            base.doUnlock()
        except Errors.LockError, e:
            return 200
        return 0

    logger = logging.getLogger("yum.main")
    verbose_logger = logging.getLogger("yum.verbose.main")

    # our core object for the cli
    base = cli.YumBaseCli()

    # do our cli parsing and config file setup
    # also sanity check the things being passed on the cli
    try:
        base.getOptionsConfig(args)
    except plugins.PluginYumExit, e:
        return exPluginExit(e)
    except Errors.YumBaseError, e:
        return exFatal(e)

    lockerr = ""
    while True:
        try:
            base.doLock()
        except Errors.LockError, e:
            if "%s" %(e.msg,) != lockerr:
                lockerr = "%s" %(e.msg,)
                logger.critical(lockerr)
            logger.critical(_("Another app is currently holding the yum lock; waiting for it to exit..."))
            time.sleep(2)
        else:
            break

    try:
        result, resultmsgs = base.doCommands()
    except plugins.PluginYumExit, e:
        return exPluginExit(e)
    except Errors.YumBaseError, e:
        result = 1
        resultmsgs = [unicode(e)]
    except KeyboardInterrupt:
        return exUserCancel()
    except IOError, e:
        return exIOError(e)

    # Act on the command/shell result
    if result == 0:
        # Normal exit 
        for msg in resultmsgs:
            verbose_logger.log(logginglevels.INFO_2, '%s', msg)
        if unlock(): return 200
        return 0
    elif result == 1:
        # Fatal error
        for msg in resultmsgs:
            logger.critical(_('Error: %s'), msg)
        if unlock(): return 200
        return 1
    elif result == 2:
        # Continue on
        pass
    elif result == 100:
        if unlock(): return 200
        return 100
    else:
        logger.critical(_('Unknown Error(s): Exit Code: %d:'), result)
        for msg in resultmsgs:
            logger.critical(msg)
        if unlock(): return 200
        return 3
            
    # Depsolve stage
    verbose_logger.log(logginglevels.INFO_2, _('Resolving Dependencies'))

    try:
        (result, resultmsgs) = base.buildTransaction() 
    except plugins.PluginYumExit, e:
        return exPluginExit(e)
    except Errors.YumBaseError, e:
        result = 1
        resultmsgs = [unicode(e)]
    except KeyboardInterrupt:
        return exUserCancel()
    except IOError, e:
        return exIOError(e)
   
    # Act on the depsolve result
    if result == 0:
        # Normal exit
        if unlock(): return 200
        return 0
    elif result == 1:
        # Fatal error
        for msg in resultmsgs:
            logger.critical(_('Error: %s'), msg)
        if unlock(): return 200
        return 1
    elif result == 2:
        # Continue on
        pass
    else:
        logger.critical(_('Unknown Error(s): Exit Code: %d:'), result)
        for msg in resultmsgs:
            logger.critical(msg)
        if unlock(): return 200
        return 3

    verbose_logger.log(logginglevels.INFO_2, _('\nDependencies Resolved'))

    o = open('rpmlist.txt', 'w')
    for txmbr in base.tsInfo.getMembers():
        p = txmbr.po
        o.write("%s-%s-%s.%s.rpm\n" % (p.name, p.version, p.release, p.arch))
    o.close()

    verbose_logger.log(logginglevels.INFO_2, _('Complete!'))
    if unlock(): return 200
    return 0

def hotshot(func, *args, **kwargs):
    import hotshot.stats, os.path
    fn = os.path.expanduser("~/yum.prof")
    prof = hotshot.Profile(fn)
    rc = prof.runcall(func, *args, **kwargs)
    prof.close()
    print_stats(hotshot.stats.load(fn))
    return rc

def cprof(func, *args, **kwargs):
    import cProfile, pstats, os.path
    fn = os.path.expanduser("~/yum.prof")
    prof = cProfile.Profile()
    rc = prof.runcall(func, *args, **kwargs)
    prof.dump_stats(fn)
    print_stats(pstats.Stats(fn))
    return rc

def print_stats(stats):
    stats.strip_dirs()
    stats.sort_stats('time', 'calls')
    stats.print_stats(20)
    stats.sort_stats('cumulative')
    stats.print_stats(40)

def user_main(args, exit_code=False):
    """ This calls one of the multiple main() functions based on env. vars """
    errcode = None
    if 'YUM_PROF' in os.environ:
        if os.environ['YUM_PROF'] == 'cprof':
            errcode = cprof(main, args)
        if os.environ['YUM_PROF'] == 'hotshot':
            errcode = hotshot(main, args)
    if errcode is None:
        errcode = main(args)
    if exit_code:
        sys.exit(errcode)
    return errcode

if __name__ == "__main__":
    try:
        user_main(sys.argv[1:], exit_code=True)
    except KeyboardInterrupt, e:
        print >> sys.stderr, _("\n\nExiting on user cancel.")
        sys.exit(1)

Attachment: createpackagelist.sh
Description: application/shellscript

-x compat-libosip2 -x fish -x QuantLib-doc -x qca-devel -x sos -x ptlib-devel.i386 -x dahdi-tools -x g-wrap-devel -x pcb -x plt-scheme -x tetex-perltex -x tetex-bytefield

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