meta-opendreambox/classes/squashfs-img.bbclass

   1 SQUASHFS_IMG_NAMES ?= ""
   2 SQUASHFS_IMG_REPLACES ?= ""
   3 SQUASHFS_IMG_BLOCKSIZES ?= ""
   4 SQUASHFS_IMG_FILESREGEX ?= ""
   5 SQUASHFS_IMG_COMPRESSOR ?= ""
   6 SQUASHFS_IMG_SUPPORT_ENABLED ?= "${@base_less_or_equal('DREAMBOX_IMAGE_SIZE', 64, 1, 0, d)}"
   7
   8 DEPENDS += '${@base_contains('SQUASHFS_IMG_SUPPORT_ENABLED', '1', 'squashfs-tools-native dreambox-squashfs-support', '', d)}'
   9
  10 PACKAGE_ARCH := "${@base_contains('SQUASHFS_IMG_SUPPORT_ENABLED', '1', '${MACHINE_ARCH}', '${PACKAGE_ARCH}', d)}"
  11
  12 python emit_pkgdata_prepend() {
  13     import os, subprocess, glob, re, shutil
  14     enabled = d.getVar('SQUASHFS_IMG_SUPPORT_ENABLED', True)
  15
  16     if enabled != '1':
  17         bb.note('squashfs-image-support is disabled..')
  18     else:
  19         def makedirs(dir):
  20             try:
  21                 os.makedirs(dir)
  22             except:
  23                 pass
  24
  25         def rename(src, dest):
  26             try:
  27                 os.rename(src, dest)
  28             except:
  29                 pass
  30
  31         def symlink(source, link_name):
  32             try:
  33                 os.symlink(source, link_name)
  34             except:
  35                 pass
  36
  37         def rmtree(path):
  38             try:
  39                 shutil.rmtree(path)
  40             except:
  41                 pass
  42
  43         packages = d.getVar('PACKAGES', True).split(' ')
  44         packagesdir = d.getVar('PKGDEST', True)
  45
  46         package_names = d.getVar('SQUASHFS_IMG_PACKAGES', True).split(':')
  47         package_replaces = d.getVar('SQUASHFS_IMG_REPLACES', True).split(':')
  48         package_blocksizes = d.getVar('SQUASHFS_IMG_BLOCKSIZES', True).split(':')
  49         package_filesregex = d.getVar('SQUASHFS_IMG_FILESREGEX', True).split(':')
  50         package_compressor = d.getVar('SQUASHFS_IMG_COMPRESSOR', True)
  51
  52         if not package_compressor:
  53             package_compressor = 'xz'
  54
  55         num_replaces = len(package_replaces)
  56         num_blocksizes = len(package_blocksizes)
  57         num_filesregex = len(package_filesregex)
  58         idx = 0
  59
  60         for package in package_names:
  61             bb.note('building squashfs img %s' %package)
  62
  63             package_files = [ ]
  64             squashfs_files = [ ]
  65             packagedir = packagesdir+'/'+package
  66
  67             if num_replaces <= idx:
  68                 bb.fatal('no replaces for %s' %package)
  69
  70             replaces = package_replaces[idx].split(' ')
  71             replaces = [ repl.strip('\t ') for repl in replaces if repl.strip('\t ') ]
  72
  73             blocksize = ''
  74             if num_blocksizes > idx:
  75                 blocksize = package_blocksizes[idx]
  76             if blocksize == '':
  77                 blocksize = str(128*1024)
  78
  79             if num_filesregex > idx:
  80                 filesregex = package_filesregex[idx]
  81
  82             if filesregex != '':
  83                 filesre = re.compile(filesregex)
  84             else:
  85                 filesre = None
  86
  87             bb.note('replaces %s, blocksize %s, file_regex %s' %(replaces, blocksize, filesregex))
  88
  89             for repl in replaces:
  90                 bb.note('process replacement %s' %repl)
  91                 try:
  92                     files_pathes = d.getVar('FILES_%s'%repl, True).split(' ')
  93                     files_pathes = [ p.strip('\t ') for p in files_pathes ]
  94                 except:
  95                     bb.fatal('couldnt retrieve FILES_%s!' %repl)
  96                 repldir = packagesdir+'/'+repl
  97                 bb.note('FILES_%s %s' %(repl, files_pathes))
  98
  99                 l = len(repldir)
 100                 for path in files_pathes:
 101                     if path.startswith('/etc'):
 102                         continue
 103                     realp = repldir+path
 104                     for realpath in glob.glob(realp):
 105                         if os.path.isdir(realpath):
 106                             files = []
 107                             for root, dirs, names in os.walk(realpath):
 108                                 files += [ root+'/'+name for name in names ]
 109                         else:
 110                             if os.path.islink(realpath):
 111                                 continue
 112                             files = glob.glob(realpath)
 113                         files = [ (f, l) for f in files if not os.path.islink(f) and (not filesre or filesre.search(f) is not None) ]
 114                         squashfs_files += files
 115
 116             if not squashfs_files:
 117                 bb.fatal("no squashfs files ... maybe regex wrong?!?")
 118
 119             bb.note('squashfs_files %s' %[ f for f, l in squashfs_files ])
 120
 121             makedirs(packagedir+'/media/squashfs-images/'+package)
 122             makedirs(packagedir+'/squashfs-images')
 123
 124             for f, l in squashfs_files:
 125                 makedirs(packagedir+'/tmp'+os.path.dirname(f)[l:])
 126                 rename(f, packagedir+'/tmp'+f[l:])
 127                 symlink('/media/squashfs-images/'+package+f[l:], f)
 128
 129             squashfs_cmd = ['mksquashfs']
 130             squashfs_cmd.append(packagedir+'/tmp/')
 131             squashfs_cmd.append(packagedir+'/squashfs-images/'+package)
 132             squashfs_cmd.append('-b')
 133             squashfs_cmd.append('%s' %blocksize)
 134             squashfs_cmd.append('-comp')
 135             squashfs_cmd.append('%s' %package_compressor)
 136
 137             bb.note('squashfs_cmd %s' %squashfs_cmd)
 138
 139             if subprocess.call(squashfs_cmd):
 140                 bb.fatal('mksquashfs failed!')
 141
 142             rmtree(packagedir+'/tmp')
 143
 144             for repl in replaces:
 145                 rdepends = d.getVar('RDEPENDS_'+repl, True).split(' ')
 146                 rdepends.append(package)
 147                 d.setVar('RDEPENDS_'+repl, ' '.join(rdepends))
 148                 d.setVar('INSANE_SKIP_'+repl, 'dev-so')
 149                 d.setVar('ALLOW_EMPTY_'+repl, '1')
 150
 151             d.setVar('RDEPENDS_'+package, 'dreambox-squashfs-support')
 152             d.setVar('FILES_'+package, '/')
 153             d.setVar('pkg_preinst_'+package, 'if [ -z "$D" ]; then if mountpoint -q /media/squashfs-images/'+package+'; then umount /media/squashfs-images/'+package+' && losetup -d `losetup | grep '+package+' | cut -d: -f1` || touch /var/tmp/.umount_'+package+'_needed; else touch /var/tmp/.umount_'+package+'_needed; fi; fi')
 154             d.setVar('pkg_postinst_'+package, 'if [ -z "$D" ]; then if ! mountpoint -q /media/squashfs-images/'+package+'; then mount -t squashfs -o ro,loop /squashfs-images/'+package+' /media/squashfs-images/'+package+' || touch /var/tmp/.mount_'+package+'_needed; else touch /var/tmp/.mount_'+package+'_needed; fi; fi')
 155             d.setVar('pkg_postrm_'+package, 'if [ -z "$D" ]; then if mountpoint -q /media/squashfs-images/'+package+'; then umount /media/squashfs-images/'+package+' && losetup -d `losetup | grep '+package+' | cut -d: -f1` || touch /var/tmp/.umount_'+package+'_needed; else touch /var/tmp/.umount_'+package+'_needed; fi; fi')
 156             packages.append(package)
 157
 158             idx += 1
 159
 160         d.setVar('PACKAGES', ' '.join(packages))
 161 }