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packaging.py

# -*- coding: utf-8 -*-
# Copyright 2009 Didier Roche
#
# This file is part of Quickly ubuntu-application template
#
#This program is free software: you can redistribute it and/or modify it
#under the terms of the GNU General Public License version 3, as published
#by the Free Software Foundation.

#This program is distributed in the hope that it will be useful, but
#WITHOUT ANY WARRANTY; without even the implied warranties of
#MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
#PURPOSE.  See the GNU General Public License for more details.

#You should have received a copy of the GNU General Public License along
#with this program.  If not, see <http://www.gnu.org/licenses/>.

import datetime
import re
import subprocess
import sys
from launchpadlib.errors import HTTPError


from quickly import configurationhandler
from quickly import launchpadaccess
from internal import quicklyutils
from quickly import templatetools

import gettext
from gettext import gettext as _

#set domain text
gettext.textdomain('quickly')

00036 class ppa_not_found(Exception):
    pass
00038 class not_ppa_owner(Exception):
    pass
00040 class user_team_not_found(Exception):
    pass
00042 class invalid_versionning_scheme(Exception):
    def __init__(self, msg):
        self.msg = msg
    def __str__(self):
        return repr(self.msg)
00047 class invalid_version_in_setup(Exception):
    def __init__(self, msg):
        self.msg = msg
    def __str__(self):
        return repr(self.msg)

00053 class DomainLevel:
    NONE=0
    WARNING=1
    ERROR=2

def _continue_if_errors(err_output, warn_output, return_code,
                       ask_on_warn_or_error):
    """print existing error and warning"""

    if err_output:
        print #finish the current line
        print ('----------------------------------')
        print _('Command returned some ERRORS:')
        print ('----------------------------------')
        print ('\n'.join(err_output))
        print ('----------------------------------')
    if warn_output:
        # seek if not uneeded warning (noise from DistUtilsExtra.auto)
        # line following the warning should be "  …"
        line_number = 0
        for line in warn_output:
            if (re.match(".*not recognized by DistUtilsExtra.auto.*", line)):
                try:
                    if not re.match('  .*',  warn_output[line_number + 1]):
                        warn_output.remove(line)
                        line_number -= 1
                except IndexError:
                    warn_output.remove(line)
                    line_number -= 1  
            line_number += 1
        # if still something, print it     
        if warn_output:
            if not err_output:
                print #finish the current line
            print _('Command returned some WARNINGS:')
            print ('----------------------------------')
            print ('\n'.join(warn_output))
            print ('----------------------------------')
    if ((err_output or warn_output) and ask_on_warn_or_error
         and return_code == 0):
        if not 'y' in raw_input("Do you want to continue (this is not safe!)? y/[n]: "):
            return(4)
    return return_code

def _filter_out(line, output_domain, err_output, warn_output):
    '''filter output dispatching right domain'''

    if 'ERR' in line:
        output_domain = DomainLevel.ERROR
    elif 'WARN' in line:
        output_domain = DomainLevel.WARNING
    elif not line.startswith('  '):
        output_domain = DomainLevel.NONE
        if '[not found]' in line:
            output_domain = DomainLevel.WARNING
    if output_domain == DomainLevel.ERROR:
        # only add once an error
        if not line in err_output:
                err_output.append(line)
    elif output_domain == DomainLevel.WARNING:
        # only add once a warning
        if not line in warn_output:
            # filter bad output from dpkg-buildpackage (on stderr) and p-d-e auto
            if not(re.match('  .*\.pot', line)
                   or re.match('  .*\.in', line)
                   or re.match(' dpkg-genchanges  >.*', line)
                   # FIXME: this warning is temporary: should be withed in p-d-e
                   or re.match('.*XS-Python-Version and XB-Python-Version.*', line)):
                warn_output.append(line)
    else:
        sys.stdout.write('.')
    return (output_domain, err_output, warn_output)
 

def _exec_and_log_errors(command, ask_on_warn_or_error=False):
    '''exec the giving command and hide output if not in verbose mode'''

    if templatetools.in_verbose_mode():
        return(subprocess.call(command))
    else:
        proc = subprocess.Popen(command, stdout=subprocess.PIPE,
                                         stderr=subprocess.PIPE)
        stdout_domain = DomainLevel.NONE
        stderr_domain = DomainLevel.NONE
        err_output = []
        warn_output = []
        while True:
            line_stdout = proc.stdout.readline().rstrip()
            line_stderr = proc.stderr.readline().rstrip()
            # filter stderr
            if line_stderr:
                (stderr_domain, err_output, warn_output) = _filter_out(line_stderr, stderr_domain, err_output, warn_output)

            if not line_stdout:
                # don't replace by if proc.poll() as the output can be empty
                if proc.poll() != None:
                    break
            # filter stdout
            else:
                (stdout_domain, err_output, warn_output) = _filter_out(line_stdout, stdout_domain, err_output, warn_output)

        return(_continue_if_errors(err_output, warn_output, proc.returncode,
                                     ask_on_warn_or_error))


def updatepackaging(changelog=None):
    """create or update a package using python-mkdebian.

    Commit after the first packaging creation"""

    if not changelog:
        changelog = []
    command = ['python-mkdebian', '--force-control']
    for message in changelog:
        command.extend(["--changelog", message])
    if not configurationhandler.project_config:
        configurationhandler.loadConfig()
    try:
        for elem in configurationhandler.project_config['dependencies'].split(' '):
            if elem:
                command.extend(["--dependency", elem])
    except KeyError:
        pass

    return_code = _exec_and_log_errors(command, True)
    if return_code != 0:
        print _("An error has occurred when creating debian packaging")
        return(return_code)

    print _("Ubuntu packaging created in debian/")

    # check if first python-mkdebian (debian/ creation) to commit it
    # that means debian/ under unknown
    bzr_instance = subprocess.Popen(["bzr", "status"], stdout=subprocess.PIPE)
    bzr_status, err = bzr_instance.communicate()
    if bzr_instance.returncode != 0:
        return(bzr_instance.returncode)

    if re.match('(.|\n)*unknown:\n.*debian/(.|\n)*', bzr_status):
        return_code = filter_exec_command(["bzr", "add"])
        if return_code == 0:
            return_code = filter_exec_command(["bzr", "commit", "-m", 'Creating ubuntu package'])

    return(return_code)


def filter_exec_command(command):
    ''' Build either a source or a binary package'''

    return(_exec_and_log_errors(command, False))


def shell_complete_ppa(ppa_to_complete):
    ''' Complete from available ppas '''

    # connect to LP and get ppa to complete
    try:
        launchpad = launchpadaccess.initialize_lpi(False)
    except launchpadaccess.launchpad_connection_error:
        sys.exit(0)
    available_ppas = []
    if launchpad:
        try:
            (ppa_user, ppa_name) = get_ppa_parameters(launchpad, ppa_to_complete)
        except user_team_not_found:
            pass
        else:
            for current_ppa_name, current_ppa_displayname in get_all_ppas(launchpad, ppa_user):
                # print user/ppa form
                available_ppas.append("%s/%s" % (ppa_user.name, current_ppa_name))
                # if it's the user, print in addition just "ppa_name" syntax
                if ppa_user.name == launchpad.me.name:
                    available_ppas.append(current_ppa_name)
                # if we don't have provided a team, show all teams were we are member off
                if not '/' in ppa_to_complete:
                    team = [mem.team for mem in launchpad.me.memberships_details if mem.status in ("Approved", "Administrator")]
                    for elem in team:
                        available_ppas.append(elem.name + '/')
        return available_ppas

def get_ppa_parameters(launchpad, full_ppa_name):
    ''' Check if we can catch good parameters for specified ppa in form user/ppa or ppa '''

    if '/' in full_ppa_name:
        ppa_user_name = full_ppa_name.split('/')[0]
        ppa_name = full_ppa_name.split('/')[1]
        # check that we are in the team/or that we are the user
        try:
            lp_ppa_user = launchpad.people[ppa_user_name]
            if lp_ppa_user.name == launchpad.me.name:
                ppa_user = launchpad.me
            else:
                # check if we are a member of this team
                team = [mem.team for mem in launchpad.me.memberships_details if mem.status in ("Approved", "Administrator") and mem.team.name == ppa_user_name]
                if team:
                    ppa_user = team[0]
                else:
                    raise not_ppa_owner(ppa_user_name)
        except KeyError:
            raise user_team_not_found(ppa_user_name)
    else:
        ppa_user = launchpad.me
        ppa_name = full_ppa_name
    return(ppa_user, ppa_name)

def choose_ppa(launchpad, ppa_name=None):
    '''Look for right ppa parameters where to push the package'''

    if not ppa_name:
        if not configurationhandler.project_config:
            configurationhandler.loadConfig()
        try:
            (ppa_user, ppa_name) = get_ppa_parameters(launchpad, configurationhandler.project_config['ppa'])
        except KeyError:
            ppa_user = launchpad.me
            if (launchpadaccess.lp_server == "staging"):
                ppa_name = 'staging'
            else: # default ppa
                ppa_name = 'ppa'
    else:
        (ppa_user, ppa_name) = get_ppa_parameters(launchpad, ppa_name)
    ppa_url = '%s/~%s/+archive/%s' % (launchpadaccess.LAUNCHPAD_URL, ppa_user.name, ppa_name)
    dput_ppa_name = 'ppa:%s/%s' % (ppa_user.name, ppa_name)
    return (ppa_user, ppa_name, dput_ppa_name, ppa_url.encode('UTF-8'))

def push_to_ppa(dput_ppa_name, changes_file, keyid=None):
    """ Push some code to a ppa """

    # creating local binary package
    buildcommand = ["dpkg-buildpackage", "-S", "-I.bzr"]
    if keyid:
        buildcommand.append("-k%s" % keyid)
    return_code = filter_exec_command(buildcommand)
    if return_code != 0:
        print _("ERROR: an error occurred during source package creation")
        return(return_code)
    # now, pushing it to launchpad personal ppa (or team later)
    return_code = subprocess.call(["dput", dput_ppa_name, changes_file])
    if return_code != 0:
        print _("ERROR: an error occurred during source upload to launchpad")
        return(return_code)
    return(0)

def get_all_ppas(launchpad, lp_team_or_user):
    """ get all from a team or users

    Return list of tuples (ppa_name, ppa_display_name)"""

    ppa_list = []
    for ppa in lp_team_or_user.ppas:
        ppa_list.append((ppa.name, ppa.displayname))
    return ppa_list

def check_and_return_ppaname(launchpad, lp_team_or_user, ppa_name):
    """ check whether ppa exists using its name or display name for the lp team or user

    return formated ppaname (not display name)"""

    # check that the owner really has this ppa:
    ppa_found = False
    for current_ppa_name, current_ppa_displayname in get_all_ppas(launchpad, lp_team_or_user):
        if current_ppa_name == ppa_name or current_ppa_displayname == ppa_name:
            ppa_found = True
            break
    if not ppa_found:
        raise ppa_not_found('ppa:%s:%s' % (lp_team_or_user.name, ppa_name.encode('UTF-8')))
    return(current_ppa_name)

def updateversion(proposed_version=None, sharing=False):
    '''Update versionning with year.month, handling intermediate release'''

    if proposed_version:
        # check manual versionning is correct
        try:
            for number in proposed_version.split('.'):
                float(number)
        except ValueError:
            msg = _("Release version specified in command arguments is not a " \
                    "valid version scheme like 'x(.y)(.z)'.")
            raise invalid_versionning_scheme(msg)
        new_version = proposed_version

    else:
        # get previous value
        try:
            old_version = quicklyutils.get_setup_value('version')
        except quicklyutils.cant_deal_with_setup_value:
            msg = _("No previous version found in setup.py. Put one please")
            raise invalid_version_in_setup(msg)

        # sharing only add -publicX to last release, no other update, no bumping
        if sharing:
            splitted_release_version = old_version.split("-public")
            if len(splitted_release_version) > 1:
                try:
                    share_version = float(splitted_release_version[1])
                except ValueError:
                    msg = _("Share version specified after -public in "\
                            "setup.py is not a valid number: %s") \
                            % splitted_release_version[1]
                    raise invalid_versionning_scheme(msg)
                new_version = splitted_release_version[0] + '-public' + \
                              str(int(share_version + 1))
            else:
                new_version = old_version + "-public1"

        # automatically version to year.month(.subversion)
        else:
            base_version = datetime.datetime.now().strftime("%y.%m")
            if base_version in old_version:
                try:
                    # try to get a minor version, removing -public if one
                    (year, month, minor_version) = old_version.split('.')
                    minor_version = minor_version.split('-public')[0]
                    try:
                        minor_version = float(minor_version)
                    except ValueError:
                        msg = _("Minor version specified in setup.py is not a " \
                                "valid number: %s. Fix this or specify a " \
                                "version as release command line argument") \
                                % minor_version
                        raise invalid_versionning_scheme(msg)
                    new_version = base_version + '.' + str(int(minor_version + 1))

                except ValueError:
                    # no minor version, bump to first one (be careful,
                    # old_version may contain -publicX)
                    new_version = base_version + '.1'

            else:
                # new year/month
                new_version = base_version

    # write release version to setup.py and update it in aboutdialog
    quicklyutils.set_setup_value('version', new_version)
    about_dialog_file_name = quicklyutils.get_about_file_name()
    if about_dialog_file_name:
        quicklyutils.change_xml_elem(about_dialog_file_name, "object/property",
                                     "name", "version", new_version, {})

    return new_version

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