release/scripts/package-split.py

   1 #!/usr/local/bin/python
   2 #
   3 # This script generates a master INDEX file for the CD images built by the
   4 # FreeBSD release engineers.  Each disc is given a list of desired packages.
   5 # Dependencies of these packages are placed on either the same disc or an
   6 # earlier disc.  The resulting master INDEX file is then written out.
   7 #
   8 # Usage: package-split.py <INDEX> <master INDEX>
   9 #
  10 # $FreeBSD$
  11
  12 import os
  13 import sys
  14
  15 try:
  16     arch = os.environ["PKG_ARCH"]
  17 except:
  18     arch = os.uname()[4]
  19 print "Using arch %s" % (arch)
  20
  21 if 'PKG_VERBOSE' in os.environ:
  22     verbose = 1
  23 else:
  24     verbose = 0
  25
  26 # List of packages for disc1.  This just includes packages sysinstall can
  27 # install as a distribution
  28 def disc1_packages():
  29     pkgs = ['lang/perl5.8']
  30     pkgs.extend(['x11/xorg',
  31                  'devel/imake'])
  32     if arch == 'i386':
  33         pkgs.append('emulators/linux_base-fc4')
  34     return pkgs
  35
  36 # List of packages for disc2.  This includes packages that the X desktop
  37 # menu depends on (if it still exists) and other "nice to have" packages.
  38 # For architectures that use a separate livefs, this is actually disc3.
  39 def disc2_packages():
  40             # X Desktops
  41     if arch == 'ia64':
  42         pkgs = ['x11/gnome2-lite',
  43                 'x11/kde-lite']
  44     else:
  45         pkgs = ['x11/gnome2',
  46                 'x11/kde3']
  47     pkgs.extend(['x11-wm/afterstep',
  48             'x11-wm/windowmaker',
  49             'x11-wm/fvwm2',
  50             # "Nice to have"
  51             'archivers/unzip',
  52             'astro/xearth',
  53             'devel/gmake',
  54             'editors/emacs',
  55             'editors/vim-lite',
  56             'emulators/mtools',
  57             'graphics/png',
  58             'graphics/xv',
  59             'irc/xchat',
  60             'mail/exim',
  61             'mail/fetchmail',
  62             'mail/mutt',
  63             'mail/pine4',
  64             'mail/popd',
  65             'mail/xfmail',
  66             'mail/postfix',
  67             'net/cvsup-without-gui',
  68             'net/rsync',
  69             'net/samba3',
  70             'news/slrn',
  71             'news/tin',
  72             'ports-mgmt/portupgrade',
  73             'print/a2ps-letter',
  74             'print/apsfilter',
  75             'print/ghostscript-gnu-nox11',
  76             'print/gv',
  77             'print/psutils-letter',
  78             'shells/bash',
  79             'shells/pdksh',
  80             'shells/zsh',
  81             'security/sudo',
  82             'www/links',
  83             'www/lynx',
  84             'x11/rxvt',
  85             # Formerly on disc3
  86             'ports-mgmt/portaudit'])
  87     return pkgs
  88
  89 # The list of desired packages
  90 def desired_packages():
  91     disc1 = disc1_packages()
  92     disc2 = disc2_packages()
  93     return [disc1, disc2]
  94
  95 # Suck the entire INDEX file into a two different dictionaries.  The first
  96 # dictionary maps port names (origins) to package names.  The second
  97 # dictionary maps a package name to a list of its dependent packages.
  98 PACKAGE_COL=0
  99 ORIGIN_COL=1
 100 DEPENDS_COL=8
 101
 102 def load_index(index):
 103     deps = {}
 104     pkgs = {}
 105     line_num = 1
 106     for line in index:
 107         fields = line.split('|')
 108         name = fields[PACKAGE_COL]
 109         if name in deps:
 110             sys.stderr.write('%d: Duplicate package %s\n' % (line_num, name))
 111             sys.exit(1)
 112         origin = fields[ORIGIN_COL].replace('/usr/ports/', '', 1)
 113         if origin in pkgs:
 114             sys.stderr.write('%d: Duplicate port %s\n' % (line_num, origin))
 115             sys.exit(1)
 116         deps[name] = fields[DEPENDS_COL].split()
 117         pkgs[origin] = name
 118         line_num = line_num + 1
 119     return (deps, pkgs)
 120
 121 # Layout the packages on the various CD images.  Here's how it works.  We walk
 122 # each disc in the list of discs.  Within each disc we walk the list of ports.
 123 # For each port, we add the package name to a dictionary with the value being
 124 # the current disc number.  We also add all of the dependent packages.  If
 125 # a package is already in the dictionary when we go to add it, we just leave
 126 # the dictionary as it is.  This means that each package ends up on the first
 127 # disc that either lists it or contains it as a dependency.
 128 def layout_discs(discs, pkgs, deps):
 129     disc_num = 1
 130     layout = {}
 131     for disc in discs:
 132         for port in disc:
 133             if port not in pkgs:
 134                 sys.stderr.write('Disc %d: Unable to find package for %s\n' %
 135                                  (disc_num, port))
 136                 continue
 137             pkg = pkgs[port]
 138             pkg_list = [pkg] + deps[pkg]
 139             for pkg in pkg_list:
 140                 if pkg not in layout:
 141                     if verbose:
 142                         print "--> Adding %s to Disc %d" % (pkg, disc_num)
 143                     layout[pkg] = disc_num
 144         disc_num = disc_num + 1
 145     return layout
 146
 147 # Generate a master INDEX file based on the generated layout.  The way this
 148 # works is that for each INDEX line, we check to see if the package is in the
 149 # layout.  If it is, we put that INDEX line into the master INDEX and append
 150 # a new field with the disc number to the line.
 151 def generate_index(index, layout, master_index):
 152     for line in index:
 153         pkg = line.split('|')[PACKAGE_COL]
 154         if pkg in layout:
 155             new_line = '%s|%d\n' % (line.splitlines()[0], layout[pkg])
 156             master_index.write(new_line)
 157
 158 # Verify the command line arguments
 159 if len(sys.argv) != 3:
 160     sys.stderr.write('Invalid number of arguments\n')
 161     sys.stderr.write('Usage: package-split.py <source INDEX> <master INDEX>\n')
 162     sys.exit(1)
 163
 164 print "Loading %s..." % (sys.argv[1])
 165 index = file(sys.argv[1])
 166 (deps, pkgs) = load_index(index)
 167 discs = desired_packages()
 168 layout = layout_discs(discs, pkgs, deps)
 169 index.seek(0)
 170 print "Generating %s..." % (sys.argv[2])
 171 master_index = file(sys.argv[2], 'w')
 172 generate_index(index, layout, master_index)
 173 index.close()
 174 master_index.close()