daklib/ls.py

   1 """List packages according to various criteria
   2
   3 @copyright: 2014, Ansgar Burchardt <ansgar@debian.org>
   4 @license: GPL-2+
   5 """
   6
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 2 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program; if not, write to the Free Software
  19 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20
  21 import sqlalchemy.sql as sql
  22 import daklib.daksql as daksql
  23
  24 from daklib.dbconn import DBConn, session_wrapper
  25 from collections import defaultdict
  26
  27
  28 @session_wrapper
  29 def list_packages(packages, suites=None, components=None, architectures=None, binary_types=None,
  30                   source_and_binary=False, regex=False,
  31                   format=None, highest=None,
  32                   session=None):
  33     t = DBConn().view_package_list
  34
  35     comparison_operator = "~" if regex else "="
  36
  37     where = sql.false()
  38     for package in packages:
  39         where = where | t.c.package.op(comparison_operator)(package)
  40         if source_and_binary:
  41             where = where | t.c.source.op(comparison_operator)(package)
  42
  43     if suites is not None:
  44         where = where & t.c.suite.in_(suites)
  45     if components is not None:
  46         where = where & t.c.component.in_(components)
  47     if architectures is not None:
  48         where = where & t.c.architecture.in_(architectures)
  49     if binary_types is not None:
  50         where = where & t.c.type.in_(binary_types)
  51
  52     if format is None:
  53         c_architectures = daksql.string_agg(t.c.architecture, ', ', order_by=[t.c.architecture_is_source.desc(), t.c.architecture])
  54         query = sql.select([t.c.package, t.c.version, t.c.display_suite, c_architectures]) \
  55                    .where(where) \
  56                    .group_by(t.c.package, t.c.version, t.c.display_suite) \
  57                    .order_by(t.c.package, t.c.version, t.c.display_suite)
  58         result = session.execute(query).fetchall()
  59
  60         if len(result) == 0:
  61             raise StopIteration
  62
  63         lengths = {
  64             'package': max(10, max(len(row[t.c.package]) for row in result)),
  65             'version': max(13, max(len(row[t.c.version]) for row in result)),
  66             'suite':   max(10, max(len(row[t.c.display_suite]) for row in result))
  67         }
  68         format = "{0:{lengths[package]}} | {1:{lengths[version]}} | {2:{lengths[suite]}} | {3}"
  69
  70         for row in result:
  71             yield format.format(row[t.c.package], row[t.c.version], row[t.c.display_suite], row[c_architectures], lengths=lengths)
  72     elif format in ('control-suite', 'heidi'):
  73         query = sql.select([t.c.package, t.c.version, t.c.architecture]).where(where)
  74         result = session.execute(query)
  75         for row in result:
  76             yield "{0} {1} {2}".format(row[t.c.package], row[t.c.version], row[t.c.architecture])
  77     elif format == "python":
  78         c_architectures = daksql.string_agg(t.c.architecture, ',', order_by=[t.c.architecture_is_source.desc(), t.c.architecture])
  79         query = sql.select([t.c.package,
  80                             t.c.version,
  81                             t.c.display_suite,
  82                             c_architectures,
  83                             t.c.source,
  84                             t.c.source_version,
  85                             t.c.component]) \
  86             .where(where) \
  87             .group_by(t.c.package,
  88                       t.c.version,
  89                       t.c.display_suite,
  90                       t.c.source,
  91                       t.c.component,
  92                       t.c.source_version)
  93         result = session.execute(query).fetchall()
  94
  95         if len(result) == 0:
  96             raise StopIteration
  97
  98         val = lambda: defaultdict(val)
  99         ret = val()
 100         for row in result:
 101             ret[row[t.c.package]] \
 102                [row[t.c.display_suite]] \
 103                [row[t.c.version]]={'component':      row[t.c.component],
 104                                    'architectures':  row[c_architectures].split(','),
 105                                    'source':         row[t.c.source],
 106                                    'source_version': row[t.c.source_version]
 107                                }
 108
 109         yield ret
 110         return
 111     else:
 112         raise ValueError("Unknown output format requested.")
 113
 114     if highest is not None:
 115         query = sql.select([t.c.package, sql.func.max(t.c.version)]).where(where) \
 116                    .group_by(t.c.package).order_by(t.c.package)
 117         result = session.execute(query)
 118         yield ""
 119         for row in result:
 120             yield "{0} ({1} {2})".format(row[0], highest, row[1])