github.com_openSUSE_osc/osc/commandline.py

#!/usr/bin/python

# Copyright (C) 2006 Peter Poeml / Novell Inc.  All rights reserved.
# This program is free software; it may be used, copied, modified
# and distributed under the terms of the GNU General Public Licence,
# either version 2, or (at your option) any later version.


from core import *
import cmdln
import conf


class Osc(cmdln.Cmdln):

    """usage:
        osc [GLOBALOPTS] SUBCOMMAND [OPTS] [ARGS...]
        osc help SUBCOMMAND
    OpenSUSE build service command-line tool.
    Type 'osc help <subcommand>' for help on a specific subcommand.

    ${command_list}
    ${help_list}
    global ${option_list}
    For additional information, see 
    * http://www.opensuse.org/Build_Service_Tutorial
    * http://www.opensuse.org/Build_Service/CLI
    """
    name = 'osc'

    def __init__(self, *args, **kwargs):
        cmdln.Cmdln.__init__(self, *args, **kwargs)
        cmdln.Cmdln.do_help.aliases.append('h')

        conf.get_config()

        # set up and parse options before subcommand
        self.optparser = cmdln.CmdlnOptionParser(self,
                                                version=get_osc_version())
        self.optparser.add_option('-H', '--http-debug', action='store_true',
                      default=conf.config['http_debug'],
                      help='debug HTTP traffic')
        self.optparser.add_option('-A', '--apisrv', dest='apisrv',
                      metavar='URL',
                      help='specify URL to access API server at')

        (self.global_opts, self.myargs) = self.optparser.parse_args()

        # XXX version is printed twice otherwise...
        self.optparser.version = ''

        # merge commandline options into the config
        conf.config['http_debug'] = self.global_opts.http_debug
        if self.global_opts.apisrv:
            conf.config['scheme'], conf.config['apisrv'] = \
                conf.parse_apisrv_url(conf.config['scheme'], self.global_opts.apisrv)
        conf.config['apiurl'] = conf.config['scheme'] + '://' + conf.config['apisrv']

        # XXX unless config['user'] goes away (and is replaced with a handy function, or 
        # config becomes an object, even better), set the global 'user' here as well:
        conf.config['user'] = conf.config['auth_dict'][conf.config['apisrv']]['user']

        # finally, initialize urllib2 for to use the credentials for Basic Authentication
        conf.init_basicauth(conf.config)


    def do_init(self, subcmd, opts, *args):
        """${cmd_name}: Initialize a directory as working copy 

        Initialize a directory to be a working copy of an
        existing buildservice package. 
        
        (This is the same as checking out a
        package and then copying sources into the directory. It does NOT create
        a new package. To create a package, use createpac.)

        ${cmd_usage}
        ${cmd_option_list}
        """
        if len(args) != 2:
            print >>sys.stderr, 'Must provide project and package name.'
            return 2

        project = args[0]
        package = args[1]
        init_package_dir(conf.config['apiurl'], project, package, os.path.curdir)
        print 'Initializing %s (Project: %s, Package: %s)' % (os.curdir, project, package)


    @cmdln.alias('ls')
    #@cmdln.option('-l', '--long', action='store_true',
    #                    help='print extra information')
    def do_list(self, subcmd, opts, *args):
        """${cmd_name}: List existing content on the server

        Examples:
           ls                         # list all projects
           ls Apache                  # list packages in a project
           ls Apache subversion       # list files of package of a project

        ${cmd_usage}
        ${cmd_option_list}
        """

        if not args:
            print '\n'.join(meta_get_project_list(conf.config['apiurl']))
        elif len(args) == 1:
            project = args[0]
            print '\n'.join(meta_get_packagelist(conf.config['apiurl'], project))
        elif len(args) == 2:
            project = args[0]
            package = args[1]
            print '\n'.join(meta_get_filelist(conf.config['apiurl'], project, package))


    def do_meta(self, subcmd, opts, *args):
        """${cmd_name}: Shows meta information
        
        examples: osc meta Apache              # show meta of project 'Apache'
                  osc meta Apache subversion   # show meta of package 'subversion'

        ${cmd_usage}
        ${cmd_option_list}
        """

        if not args:
            print >>sys.stderr, 'Missing argument.'
            self.do_help(['foo', 'meta'])
            return 2

        if len(args) == 2:
            project = args[0]
            package = args[1]
            print ''.join(show_package_meta(conf.config['apiurl'], project, package))
            print ''.join(show_files_meta(conf.config['apiurl'], project, package))

        elif len(args) == 1:
            project = args[0]
            print ''.join(show_project_meta(conf.config['apiurl'], project))


    @cmdln.alias("createpac")
    def do_editpac(self, subcmd, opts, project, package):
        """${cmd_name}: Create package or edit package metadata

        If the named package does not exist, it will be created.

        ${cmd_usage}
        ${cmd_option_list}
        """

        edit_meta(project, package)


    @cmdln.alias('createprj')
    def do_editprj(self, subcmd, opts, project):
        """${cmd_name}: Create project or edit project metadata

        If the named project does not exist, it will be created.

        ${cmd_usage}
        ${cmd_option_list}
        """

        edit_meta(project, None)


    def do_editmeta(self, subcmd, opts, *args):
        """${cmd_name}: Edit project/package meta information

        If the named project or package does not exist, it will be created.

        Examples: 
           osc editmeta FooPrj              # edit meta of project 'FooPrj'
           osc editmeta FooPrj barpackage   # edit meta of package 'barpackage'

        ${cmd_usage}
        ${cmd_option_list}
        """

        if not args:
            print >>sys.stderr, 'Missing argument.'
            self.do_help(['foo', 'editmeta'])
            return 2

        if len(args) == 2:
            project = args[0]
            package = args[1]
            edit_meta(project, package)

        elif len(args) == 1:
            project = args[0]
            edit_meta(project, None)


    def do_edituser(self, subcmd, opts, *args):
        """${cmd_name}: Edit user meta information

        If the named user id does not exist, it will be created.
        
        ${cmd_usage}
        ${cmd_option_list}
        """

        if not args or len(args) != 1:
            user = conf.config['user']
        else:
            user = args[0]
        edit_user_meta(user)


    def do_linkpac(self, subcmd, opts, *args):
        """${cmd_name}: "Link" a package to another package
        
        A linked package is a clone of another package, but plus local
        modifications. It can be cross-project.

        The DESTPAC name is optional; the source packages' name will be used if
        DESTPAC is omitted.

        Afterwards, you will want to 'checkout DESTPRJ DESTPAC'.

        To add a patch, add the patch as file and add it to the _link file.
        You can also specify text which will be inserted at the top of the spec file.

        See the examples in the _link file.

        usage: 
            osc linkpac SOURCEPRJ SOURCEPAC DESTPRJ [DESTPAC]
        ${cmd_option_list}
        """

        if not args or len(args) < 3:
            print >>sys.stderr, 'Incorrect number of argument.'
            self.do_help(['foo', 'linkpac'])
            return 2

        src_project = args[0]
        src_package = args[1]
        dst_project = args[2]
        if len(args) > 3:
            dst_package = args[3]
        else:
            dst_package = src_package

        if src_project == dst_project and src_package == dst_package:
            print >>sys.stderr, 'Error: source and destination are the same.'
            return 1
        link_pac(src_project, src_package, dst_project, dst_package)


    @cmdln.option('-t', '--to-apiurl', metavar='URL',
                        help='URL of destination api server. Default is the source api server.')
    def do_copypac(self, subcmd, opts, *args):
        """${cmd_name}: Copy a package

        A client-side copy implementation. It can be cross-project.

        The DESTPAC name is optional; the source packages' name will be used if
        DESTPAC is omitted.

        usage: 
            osc copypac SOURCEPRJ SOURCEPAC DESTPRJ [DESTPAC]
        ${cmd_option_list}
        """

        if not args or len(args) < 3:
            print >>sys.stderr, 'Incorrect number of argument.'
            self.do_help(['foo', 'copypac'])
            return 2

        src_project = args[0]
        src_package = args[1]
        dst_project = args[2]
        if len(args) > 3:
            dst_package = args[3]
        else:
            dst_package = src_package

        src_apiurl = conf.config['apiurl']
        if opts.to_apiurl:
            dst_apiurl = opts.to_apiurl
        else:
            dst_apiurl = src_apiurl

        if src_project == dst_project and \
           src_package == dst_package and \
           src_apiurl == dst_apiurl:
            print >>sys.stderr, 'Error: source and destination are the same.'
            return 1
        copy_pac(src_apiurl, src_project, src_package, 
                 dst_apiurl, dst_project, dst_package)


    def do_deletepac(self, subcmd, opts, project, package):
        """${cmd_name}: Delete a packge on the repository server

        ${cmd_usage}
        ${cmd_option_list}
        """

        delete_package(conf.config['apiurl'], project, package)


    def do_deleteprj(self, subcmd, opts, project):
        """${cmd_name}: Delete a project on the repository server

        As a safety measure, project must be empty (i.e., you first need to delete all
        packages first).

        NOTE: This command is not implemented yet. Please mail
        admin@opensuse.org in order to get projects deleted.

        ${cmd_usage}
        ${cmd_option_list}
        """

        if meta_get_packagelist(conf.config['apiurl'], project) != []:
            print >>sys.stderr, 'Project contains packages. It must be empty before deleting it.'
            return 1

        #delete_project(conf.config['apiurl'], project)
        print >>sys.stderr, 'Deleting projects is not yet implemented.'
        print >>sys.stderr, 'Please send a request to opensuse-buildservice@opensuse.org'
        print >>sys.stderr, 'or admin@opensuse.org.'


    def do_updatepacmetafromspec(self, subcmd, opts, *args):
        """${cmd_name}: Update package meta information from a specfile

        ARG, if specified, is a package working copy.

        ${cmd_usage}
        ${cmd_option_list}
        """

        args = parseargs(args)
        pacs = findpacs(args)

        for p in pacs:

            p.read_meta_from_spec()
            p.update_pac_meta()


    @cmdln.alias('di')
    def do_diff(self, subcmd, opts, *args):
        """${cmd_name}: Generates a diff

        Generates a diff, comparing local changes against the repository
        server.
        
        ARG, specified, is a filename to include in the diff.

        ${cmd_usage}
        ${cmd_option_list}
        """

        args = parseargs(args)
        pacs = findpacs(args)

        difference_found = False
        for p in pacs:
            if p.todo == []:
                for i in p.filenamelist:
                    s = p.status(i)
                    if s == 'M' or s == 'C':
                        p.todo.append(i)

            d = []
            for filename in p.todo:
                d.append('Index: %s\n' % filename)
                d.append('===================================================================\n')
                d.append(get_source_file_diff(p.dir, filename, p.rev))
            if d:
                print ''.join(d)
                difference_found = True

        if difference_found:
            return 1


                
    def do_repourls(self, subcmd, opts, *args):
        """${cmd_name}: shows URLs of .repo files 

        Shows URLs on which to access the project .repos files (yum-style
        metadata) on software.opensuse.org.

        ARG, if specified, is a package working copy.

        ${cmd_usage}
        ${cmd_option_list}
        """

        args = parseargs(args)
        pacs = findpacs(args)

        url_tmpl = 'http://software.opensuse.org/download/%s/%s/%s.repo'
        for p in pacs:
            platforms = get_platforms_of_project(p.apiurl, p.prjname)
            for platform in platforms:
                print url_tmpl % (p.prjname.replace(':', ':/'), platform, p.prjname)


                
    @cmdln.alias('co')
    def do_checkout(self, subcmd, opts, *args):
        """${cmd_name}: check out content from the repository
        
        Check out content from the repository server, creating a local working
        copy.

        examples:
            osc co Apache                    # entire project
            osc co Apache subversion         # a package
            osc co Apache subversion foo     # single file -> to current dir

        usage: 
            osc co PROJECT [PACKAGE] [FILE]
        ${cmd_option_list}
        """

        project = package = filename = None
        try: 
            project = args[0]
            package = args[1]
            filename = args[2]
        except: 
            pass

        if filename:
            get_source_file(conf.config['apiurl'], project, package, filename)

        elif package:
            checkout_package(conf.config['apiurl'], project, package)

        elif project:
            # all packages
            for package in meta_get_packagelist(conf.config['apiurl'], project):
                checkout_package(conf.config['apiurl'], project, package)
        else:
            print >>sys.stderr, 'Missing argument.'
            self.do_help(['foo', 'checkout'])
            return 2


    @cmdln.option('-v', '--verbose', action='store_true',
                        help='print extra information')
    @cmdln.alias('st')
    def do_status(self, subcmd, opts, *args):
        """${cmd_name}: Show status of files in working copy

        Show the status of files in a local working copy, indicating whether
        files have been changed locally, deleted, added, ...

        The first column in the output specifies the status and is one of the
        following characters:
          ' ' no modifications
          'A' Added
          'C' Conflicted
          'D' Deleted
          'M' Modified
          '?' item is not under version control
          '!' item is missing (removed by non-svn command) or incomplete

        examples:
          osc st
          osc st <directory>
          osc st file1 file2 ...

        usage: 
            osc status [OPTS] [PATH...]
        ${cmd_option_list}
        """

        args = parseargs(args)

        pacpaths = []
        for arg in args:
            # when 'status' is run inside a project dir, it should
            # stat all packages existing in the wc
            if is_project_dir(arg):
                prj = Project(arg)
                pacpaths += [arg + '/' + n for n in prj.pacs_have]
            elif is_package_dir(arg):
                pacpaths.append(arg)
            elif os.path.isfile(arg):
                pacpaths.append(arg)
            else:
                print >>sys.stderr, 'osc: error: %s is neither a project or a package directory' % arg
                return 1
            

        pacs = findpacs(pacpaths)

        for p in pacs:

            # no files given as argument? Take all files in current dir
            if not p.todo:
                p.todo = p.filenamelist + p.filenamelist_unvers
            p.todo.sort()

            lines = []
            for filename in p.todo:
                if filename in p.excluded:
                    continue
                s = p.status(filename)
                if s == 'F':
                    lines.append(statfrmt('!', pathjoin(p.dir, filename)))
                elif s != ' ' or (s == ' ' and opts.verbose):
                    lines.append(statfrmt(s, pathjoin(p.dir, filename)))

            # arrange the lines in order: unknown files first
            # filenames are already sorted
            lines = [line for line in lines if line[0] == '?'] \
                  + [line for line in lines if line[0] != '?']
            if lines:
                print '\n'.join(lines)


    def do_add(self, subcmd, opts, *args):
        """${cmd_name}: Mark files to be added upon the next commit

        usage: 
            osc add FILE [FILE...]
        ${cmd_option_list}
        """

        if not args:
            print >>sys.stderr, 'Missing argument.'
            self.do_help(['foo', 'add'])
            return 2

        filenames = parseargs(args)

        for filename in filenames:
            if not os.path.exists(filename):
                print >>sys.stderr, "file '%s' does not exist" % filename
                return 1

        pacs = findpacs(filenames)

        for pac in pacs:
            for filename in pac.todo:
                if filename in pac.excluded:
                    continue
                if filename in pac.filenamelist:
                    print >>sys.stderr, 'osc: warning: \'%s\' is already under version control' % filename
                    continue

                pac.addfile(filename)
                print statfrmt('A', filename)


    def do_addremove(self, subcmd, opts, *args):
        """${cmd_name}: Adds new files, removes disappeared files

        Adds all files new in the local copy, and removes all disappeared files.

        ARG, if specified, is a package working copy.

        ${cmd_usage}
        ${cmd_option_list}
        """

        args = parseargs(args)
        pacs = findpacs(args)
        for p in pacs:

            p.todo = p.filenamelist + p.filenamelist_unvers

            for filename in p.todo:
                if os.path.isdir(filename):
                    continue
                state = p.status(filename)
                if state == '?':
                    p.addfile(filename)
                    print statfrmt('A', filename)
                elif state == '!':
                    p.put_on_deletelist(filename)
                    p.write_deletelist()
                    os.unlink(os.path.join(p.storedir, filename))
                    print statfrmt('D', filename)



    @cmdln.alias('ci')
    @cmdln.alias('checkin')
    def do_commit(self, subcmd, opts, *args):
        """${cmd_name}: Upload content to the repository server

        Upload content which is changed in your working copy, to the repository
        server.

        examples: 
           osc ci                   # current dir
           osc ci <dir>
           osc ci file1 file2 ...

        ${cmd_usage}
        ${cmd_option_list}
        """

        args = parseargs(args)
        pacs = findpacs(args)

        for p in pacs:

            # commit only if the upstream revision is the same as the working copy's
            upstream_rev = show_upstream_rev(p.apiurl, p.prjname, p.name)
            if p.rev != upstream_rev:
                print >>sys.stderr, 'Working copy \'%s\' is out of date (rev %s vs rev %s).' \
                    % (p.absdir, p.rev, upstream_rev)
                print >>sys.stderr, 'Looks as if you need to update it first.'
                return 1

            if not p.todo:
                p.todo = p.filenamelist_unvers + p.filenamelist

            for filename in p.todo:
                st = p.status(filename)
                if st == 'A' or st == 'M':
                    p.todo_send.append(filename)
                    print 'Sending        %s' % filename
                elif st == 'D':
                    p.todo_delete.append(filename)
                    print 'Deleting       %s' % filename

            if not p.todo_send and not p.todo_delete:
                print 'nothing to do for package %s' % p.name
                continue

            print 'Transmitting file data ', 
            for filename in p.todo_send:
                sys.stdout.write('.')
                p.put_source_file(filename)
            for filename in p.todo_delete:
                p.delete_source_file(filename)
                p.to_be_deleted.remove(filename)
            if conf.config['do_commits'] == '1':
                p.commit(msg='MESSAGE')

            p.update_filesmeta()
            p.write_deletelist()
            print


    @cmdln.alias('up')
    def do_update(self, subcmd, opts, *args):
        """${cmd_name}: Update a working copy

        examples: 

        1. osc up
                If the current working directory is a package, update it.
                If the directory is a project directory, update all contained
                packages, AND check out newly added packages.

                To update only checked out packages, without checking out new
                ones, you might want to use "osc up *" from within the project
                dir.

        2. osc up PAC
                Update the packages specified by the path argument(s)

        ${cmd_usage}
        ${cmd_option_list}
        """

        args = parseargs(args)

        for arg in args:

            # when 'update' is run inside a project dir, it should...
            if is_project_dir(arg):

                prj = Project(arg)

                # (a) update all packages
                args += prj.pacs_have

                # (b) fetch new packages
                prj.checkout_missing_pacs()
                args.remove(arg)


        pacs = findpacs(args)

        for p in pacs:

            if len(pacs) > 1:
                print 'Updating %s' % p.name
            # save filelist and (modified) status before replacing the meta file
            saved_filenames = p.filenamelist
            saved_modifiedfiles = [ f for f in p.filenamelist if p.status(f) == 'M' ]

            oldp = p
            p.update_filesmeta()
            p = Package(p.dir)

            # which files do no longer exist upstream?
            disappeared = [ f for f in saved_filenames if f not in p.filenamelist ]
                

            for filename in saved_filenames:
                if filename in disappeared:
                    print statfrmt('D', filename)
                    # keep file if it has local modifications
                    if oldp.status(filename) == ' ':
                        p.delete_localfile(filename)
                    p.delete_storefile(filename)
                    continue

            for filename in p.filenamelist:

                state = p.status(filename)
                if state == 'M' and p.findfilebyname(filename).md5 == oldp.findfilebyname(filename).md5:
                    # no merge necessary... local file is changed, but upstream isn't
                    pass
                elif state == 'M' and filename in saved_modifiedfiles:
                    status_after_merge = p.mergefile(filename)
                    print statfrmt(status_after_merge, filename)
                elif state == 'M':
                    p.updatefile(filename)
                    print statfrmt('U', filename)
                elif state == '!':
                    p.updatefile(filename)
                    print 'Restored \'%s\'' % filename
                elif state == 'F':
                    p.updatefile(filename)
                    print statfrmt('A', filename)
                elif state == ' ':
                    pass


            p.update_pacmeta()

            #print ljust(p.name, 45), 'At revision %s.' % p.rev
            print 'At revision %s.' % p.rev
                    


            
    @cmdln.alias('rm')
    @cmdln.alias('del')
    @cmdln.alias('remove')
    def do_delete(self, subcmd, opts, *args):
        """${cmd_name}: Mark files to be deleted upon the next 'checkin'

        usage: 
            osc rm FILE [FILE...]
        ${cmd_option_list}
        """

        if not args:
            print >>sys.stderr, 'Missing argument.'
            self.do_help(['foo', 'delete'])
            return 2

        args = parseargs(args)
        pacs = findpacs(args)

        for p in pacs:

            for filename in p.todo:
                p.put_on_deletelist(filename)
                p.write_deletelist()
                try:
                    os.unlink(os.path.join(p.dir, filename))
                    os.unlink(os.path.join(p.storedir, filename))
                except:
                    pass
                print statfrmt('D', filename)


    def do_resolved(self, subcmd, opts, *args):
        """${cmd_name}: Remove 'conflicted' state on working copy files
        
        If an upstream change can't be merged automatically, a file is put into
        in 'conflicted' ('C') state. Within the file, conflicts are marked with
        special <<<<<<< as well as ======== and >>>>>>> lines.
        
        After manually resolving all conflicting parts, use this command to
        remove the 'conflicted' state.

        Note:  this subcommand does not semantically resolve conflicts or
        remove conflict markers; it merely removes the conflict-related
        artifact files and allows PATH to be committed again.

        usage: 
            osc resolved FILE [FILE...]
        ${cmd_option_list}
        """

        if not args:
            print >>sys.stderr, 'Missing argument.'
            self.do_help(['foo', 'resolved'])
            return 2

        args = parseargs(args)
        pacs = findpacs(args)

        for p in pacs:

            for filename in p.todo:
                print 'Resolved conflicted state of "%s"' % filename
                p.clear_from_conflictlist(filename)


    def do_usermeta(self, subcmd, opts, name):
        """${cmd_name}: Shows user metadata 
        
        Shows metadata about the buildservice user with the id NAME.

        ${cmd_usage}
        ${cmd_option_list}
        """

        r = get_user_meta(conf.config['apiurl'], name)
        if r:
            print ''.join(r)


    def do_platforms(self, subcmd, opts, *args):
        """${cmd_name}: Shows available platforms
        
        Examples:
        1. osc platforms
                Shows all available platforms/build targets

        2. osc platforms <project>
                Shows the configured platforms/build targets of a project

        ${cmd_usage}
        ${cmd_option_list}
        """

        if args:
            project = args[0]
            print '\n'.join(get_platforms_of_project(conf.config['apiurl'], project))
        else:
            print '\n'.join(get_platforms(conf.config['apiurl']))


    def do_results_meta(self, subcmd, opts, *args):
        """${cmd_name}: Shows raw build results of a package

        Shows the build results of the package in raw XML.

        ARG, if specified, is the working copy of a package.

        ${cmd_usage}
        ${cmd_option_list}
        """

        args = parseargs(args)
        pacs = findpacs(args)

        for pac in pacs:
            print ''.join(show_results_meta(pac.apiurl, pac.prjname, pac.name))

                
    def do_results(self, subcmd, opts, *args):
        """${cmd_name}: Shows the build results of a package

        ARG, if specified, is the working copy of a package.

        ${cmd_usage}
        ${cmd_option_list}
        """

        try:
            args = parseargs(args)
            pacs = findpacs(args)
        except:
            print >>sys.stderr, '\'%s\' is not an osc package directory' % wd
            return 1

        for pac in pacs:
            print '\n'.join(get_results(pac.apiurl, pac.prjname, pac.name))

                
    @cmdln.option('-l', '--legend', action='store_true',
                        help='show the legend')
    def do_prjresults(self, subcmd, opts, *args):
        """${cmd_name}: Shows project-wide build results
        
        Examples:

        1. osc prjresults <dir>
                dir is a project or package directory

        2. osc prjresults
                the project is guessed from the current dir

        ${cmd_usage}
        ${cmd_option_list}
        """

        if args and len(args) > 1:
            print >>sys.stderr, 'getting results for more than one project is not supported'
            return 2
            
        if args:
            wd = args[0]
        else:
            wd = os.curdir

        try:
            project = store_read_project(wd)
            apiurl = store_read_apiurl(wd)
        except:
            print >>sys.stderr, '\'%s\' is neither an osc project or package directory' % wd
            return 1

        print '\n'.join(get_prj_results(apiurl, project, show_legend=opts.legend))

                
    def do_log(self, subcmd, opts, platform, arch):
        """${cmd_name}: Shows the build log of a package

        Shows the log file of the build of a package. Can be used to follow the
        log while it is being written.
        Needs to be called from within a package directory.

        The arguments PLATFORM and ARCH are the first two columns in the 'osc
        results' output.

        ${cmd_usage}
        ${cmd_option_list}
        """

        wd = os.curdir
        package = store_read_package(wd)
        project = store_read_project(wd)
        apiurl = store_read_apiurl(wd)

        offset = 0
        try:
            while True:
                log_chunk = get_log(apiurl, project, package, platform, arch, offset)
                if len(log_chunk) == 0:
                    break
                offset += len(log_chunk)
                print log_chunk.strip()
        except KeyboardInterrupt:
            pass


    @cmdln.option('-x', '--extra-pkgs', metavar='PAC', action='append',
                  help='Add this package when computing the buildinfo')
    def do_buildinfo(self, subcmd, opts, *args):
        """${cmd_name}: Shows the build info

        Shows the build "info" which is used in building a package.
        This command is mostly used internally by the 'build' subcommand.
        It needs to be called from within a package directory.

        The BUILD_DESCR argument is optional. BUILD_DESCR is a local RPM specfile
        or Debian "dsc" file. If specified, it is sent to the server, and the
        buildinfo will be based on it. If the argument is not supplied, the
        buildinfo is derived from the specfile which is currently on the source
        repository server.

        The returned data is XML and contains a list of the packages used in
        building, their source, and the expanded BuildRequires.

        The arguments PLATFORM and ARCH can be taken from first two columns
        of the 'osc repos' output.

        usage: 
            osc buildinfo PLATFORM ARCH [BUILD_DESCR]
        ${cmd_option_list}
        """

        wd = os.curdir
        package = store_read_package(wd)
        project = store_read_project(wd)
        apiurl = store_read_apiurl(wd)

        if args is None or len(args) < 2:
            print >>sys.stderr, 'Missing argument.'
            print 'Valid arguments for this package are:'
            print 
            self.do_repos(None, None)
            print
            return 2
            
        platform = args[0]
        arch = args[1]

        # were we given a specfile (third argument)?
        try:
            spec = open(args[2]).read()
        except IndexError:
            spec = None
        except IOError, e:
            print >>sys.stderr, e
            return 1

        print ''.join(get_buildinfo(apiurl, 
                                    project, package, platform, arch, 
                                    specfile=spec, 
                                    addlist=opts.extra_pkgs))


    def do_buildconfig(self, subcmd, opts, platform, arch):
        """${cmd_name}: Shows the build config

        Shows the build configuration which is used in building a package.
        This command is mostly used internally by the 'build' command.
        It needs to be called from inside a package directory.

        The returned data is the project-wide build configuration in a format
        which is directly readable by the build script. It contains RPM macros
        and BuildRequires expansions, for example.

        The arguments PLATFORM and ARCH can be taken first two columns in the
        'osc repos' output.

        ${cmd_usage}
        ${cmd_option_list}
        """

        wd = os.curdir
        package = store_read_package(wd)
        project = store_read_project(wd)
        apiurl = store_read_apiurl(wd)

        print ''.join(get_buildconfig(apiurl, project, package, platform, arch))


    def do_repos(self, subcmd, opts, *args):
        """${cmd_name}: Shows the repositories which are defined for a package

        ARG, if specified, is a package working copy.

        examples: 1. osc repos                   # package = current dir
                  2. osc repos <packagedir>

        ${cmd_usage}
        ${cmd_option_list}
        """

        args = parseargs(args)
        pacs = findpacs(args)

        for p in pacs:

            for platform in get_repos_of_project(p.apiurl, p.prjname):
                print platform


    @cmdln.option('--clean', action='store_true',
                  help='Delete old build root before initializing it')
    @cmdln.option('--noinit', '--no-init', action='store_true',
                  help='Skip initialization of build root and start with build immediately.')
    @cmdln.option('-p', '--prefer-pkgs', metavar='DIR', action='append',
                  help='Prefer packages from this directory when installing the build-root')
    @cmdln.option('-k', '--keep-pkgs', metavar='DIR', 
                  help='Save built packages into this directory')
    @cmdln.option('-x', '--extra-pkgs', metavar='PAC', action='append',
                  help='Add this package when installing the build-root')
    @cmdln.option('--userootforbuild', action='store_true',
                  help='Run build as root. The default is to build as '
                  'unprivileged user. Note that a line "# norootforbuild" '
                  'in the spec file will invalidate this option.')
    def do_build(self, subcmd, opts, *args):
        """${cmd_name}: Build a package on your local machine

        You need to call the command inside a package directory, which should be a
        buildsystem checkout. (Local modifications are fine.)

        The arguments PLATFORM and ARCH can be taken from first two columns
        of the 'osc repos' output. BUILD_DESCR is either a RPM spec file, or a
        Debian dsc file.

        The command honours packagecachedir and build-root settings in .oscrc,
        if present. You may want to set su-wrapper = 'sudo' in .oscrc, and
        configure sudo with option NOPASSWD for /usr/bin/build.

        If neither --clean nor --noinit is given, build will reuse an existing
        build-root again, removing unneeded packages and add missing ones. This
        is usually the fastest option.

        usage: 
            osc build [OPTS] PLATFORM ARCH BUILD_DESCR
        ${cmd_option_list}
        """
        # Note: 
        # Configuration can be overridden by envvars, e.g.  
        # OSC_SU_WRAPPER overrides the setting of su-wrapper. 
        # BUILD_DIST or OSC_BUILD_DIST overrides the build target.
        # BUILD_ROOT or OSC_BUILD_ROOT overrides the build-root.
        # 
        #       2. BUILD_DIST=... osc build <specfile> [--clean|--noinit]
        #          where BUILD_DIST equals <platform>-<arch>

        import osc.build

        if not os.path.exists('/usr/lib/build/debsort'):
            sys.stderr.write('Error: you need build.rpm with version 2006.6.14 or newer.\n')
            sys.stderr.write('See http://software.opensuse.org/download/openSUSE:/Tools/\n')
            return 1

        builddist = os.getenv('BUILD_DIST')
        if builddist:
            #args[3] = args[0]
            hyphen = builddist.rfind('-')
            args.insert(1, builddist[hyphen+1:])
            args.insert(1, builddist[:hyphen])
            print sys.argv

        elif len(args) >= 2 and len(args) < 3:
            print >>sys.stderr, 'Missing argument: build description (spec of dsc file)'
            return 2
        elif len(args) < 2:
            print
            print >>sys.stderr, 'Missing argument.'
            print 'Valid arguments are:'
            print 'you have to choose a repo to build on'
            print 'possible repositories on this machine are:'
            print 
            # here, we can't simply use self.do_repos(None, None), because it doesn't
            # _return_ the stuff, but prints right to stdout... in the future,
            # it would be good to make all commands return their output, but
            # better make them generators then
            (i, o) = os.popen4(['osc', 'repos'])
            i.close()

            for line in o.readlines():
                a = line.split()[1] # arch
                if a == osc.build.hostarch or \
                   a in osc.build.can_also_build.get(osc.build.hostarch, []):
                    print line.strip()
            return 1

        if opts.prefer_pkgs:
            for d in opts.prefer_pkgs:
                if not os.path.isdir(d):
                    print >> sys.stderr, 'Preferred package location \'%s\' is not a directory' % d
                    return 1

        if opts.keep_pkgs:
            if not os.path.isdir(opts.keep_pkgs):
                print >> sys.stderr, 'Preferred save location \'%s\' is not a directory' % opts.keep_pkgs
                return 1

        return osc.build.main(opts, args)

            

    @cmdln.alias('buildhist')
    def do_buildhistory(self, subcmd, opts, platform, arch):
        """${cmd_name}: Shows the build history of a package

        The arguments PLATFORM and ARCH can be taken from first two columns
        of the 'osc repos' output.

        ${cmd_usage}
        ${cmd_option_list}
        """

        wd = os.curdir
        package = store_read_package(wd)
        project = store_read_project(wd)
        apiurl = store_read_apiurl(wd)

        print '\n'.join(get_buildhistory(apiurl, project, package, platform, arch))


    @cmdln.option('-f', '--failed', action='store_true',
                  help='rebuild all failed packages')
    def do_rebuildpac(self, subcmd, opts, *args):
        """${cmd_name}: Triggers package rebuilds

        With the optional <repo> and <arch> arguments, the rebuild can be limited
        to a certain repository or architecture.

        Note that it is normally NOT needed to kick off rebuilds like this, because
        they principally happen in a fully automatic way, triggered by source
        check-ins. In particular, the order in which packages are built is handled
        by the build service.

        Note the --failed option, which can be used to rebuild all failed
        packages.

        The arguments PLATFORM and ARCH are as in the first two columns of the
        'osc repos' output.

        usage: 
            osc rebuildpac PROJECT [PACKAGE [PLATFORM [ARCH]]]
        ${cmd_option_list}
        """

        if len(args) < 1:
            print >>sys.stderr, 'Missing argument.'
            #self.do_help(['foo', 'rebuildpac'])
            return 2

        package = repo = arch = code = None
        project = args[0]
        if len(args) > 1:
            package = args[1]
        if len(args) > 2:
            repo = args[2]
        if len(args) > 3:
            arch = args[3]

        if opts.failed:
            code = 'failed'

        print cmd_rebuild(conf.config['apiurl'], project, package, repo, arch, code)


    def do_info(self, subcmd, opts, *args):
        """${cmd_name}: Print information about a working copy

        Print information about each ARG (default: '.')
        ARG is a working-copy path.

        ${cmd_usage}
        ${cmd_option_list}
        """

        args = parseargs(args)
        pacs = findpacs(args)


        for p in pacs:
            print p.info()


if __name__ == '__main__':
    osc = Osc()
    sys.exit(osc.main())