forked from brl/citadel
625 lines
26 KiB
Python
625 lines
26 KiB
Python
# Report significant differences in the buildhistory repository since a specific revision
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#
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# Copyright (C) 2012-2013, 2016-2017 Intel Corporation
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# Author: Paul Eggleton <paul.eggleton@linux.intel.com>
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#
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# Note: requires GitPython 0.3.1+
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#
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# You can use this from the command line by running scripts/buildhistory-diff
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#
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import sys
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import os.path
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import difflib
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import git
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import re
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import hashlib
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import collections
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import bb.utils
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import bb.tinfoil
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# How to display fields
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list_fields = ['DEPENDS', 'RPROVIDES', 'RDEPENDS', 'RRECOMMENDS', 'RSUGGESTS', 'RREPLACES', 'RCONFLICTS', 'FILES', 'FILELIST', 'USER_CLASSES', 'IMAGE_CLASSES', 'IMAGE_FEATURES', 'IMAGE_LINGUAS', 'IMAGE_INSTALL', 'BAD_RECOMMENDATIONS', 'PACKAGE_EXCLUDE']
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list_order_fields = ['PACKAGES']
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defaultval_map = {'PKG': 'PKG', 'PKGE': 'PE', 'PKGV': 'PV', 'PKGR': 'PR'}
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numeric_fields = ['PKGSIZE', 'IMAGESIZE']
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# Fields to monitor
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monitor_fields = ['RPROVIDES', 'RDEPENDS', 'RRECOMMENDS', 'RREPLACES', 'RCONFLICTS', 'PACKAGES', 'FILELIST', 'PKGSIZE', 'IMAGESIZE', 'PKG']
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ver_monitor_fields = ['PKGE', 'PKGV', 'PKGR']
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# Percentage change to alert for numeric fields
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monitor_numeric_threshold = 10
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# Image files to monitor (note that image-info.txt is handled separately)
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img_monitor_files = ['installed-package-names.txt', 'files-in-image.txt']
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# Related context fields for reporting (note: PE, PV & PR are always reported for monitored package fields)
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related_fields = {}
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related_fields['RDEPENDS'] = ['DEPENDS']
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related_fields['RRECOMMENDS'] = ['DEPENDS']
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related_fields['FILELIST'] = ['FILES']
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related_fields['PKGSIZE'] = ['FILELIST']
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related_fields['files-in-image.txt'] = ['installed-package-names.txt', 'USER_CLASSES', 'IMAGE_CLASSES', 'ROOTFS_POSTPROCESS_COMMAND', 'IMAGE_POSTPROCESS_COMMAND']
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related_fields['installed-package-names.txt'] = ['IMAGE_FEATURES', 'IMAGE_LINGUAS', 'IMAGE_INSTALL', 'BAD_RECOMMENDATIONS', 'NO_RECOMMENDATIONS', 'PACKAGE_EXCLUDE']
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class ChangeRecord:
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def __init__(self, path, fieldname, oldvalue, newvalue, monitored):
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self.path = path
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self.fieldname = fieldname
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self.oldvalue = oldvalue
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self.newvalue = newvalue
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self.monitored = monitored
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self.related = []
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self.filechanges = None
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def __str__(self):
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return self._str_internal(True)
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def _str_internal(self, outer):
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if outer:
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if '/image-files/' in self.path:
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prefix = '%s: ' % self.path.split('/image-files/')[0]
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else:
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prefix = '%s: ' % self.path
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else:
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prefix = ''
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def pkglist_combine(depver):
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pkglist = []
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for k,v in depver.items():
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if v:
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pkglist.append("%s (%s)" % (k,v))
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else:
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pkglist.append(k)
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return pkglist
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def detect_renamed_dirs(aitems, bitems):
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adirs = set(map(os.path.dirname, aitems))
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bdirs = set(map(os.path.dirname, bitems))
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files_ab = [(name, sorted(os.path.basename(item) for item in aitems if os.path.dirname(item) == name)) \
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for name in adirs - bdirs]
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files_ba = [(name, sorted(os.path.basename(item) for item in bitems if os.path.dirname(item) == name)) \
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for name in bdirs - adirs]
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renamed_dirs = [(dir1, dir2) for dir1, files1 in files_ab for dir2, files2 in files_ba if files1 == files2]
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# remove files that belong to renamed dirs from aitems and bitems
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for dir1, dir2 in renamed_dirs:
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aitems = [item for item in aitems if os.path.dirname(item) not in (dir1, dir2)]
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bitems = [item for item in bitems if os.path.dirname(item) not in (dir1, dir2)]
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return renamed_dirs, aitems, bitems
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if self.fieldname in list_fields or self.fieldname in list_order_fields:
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renamed_dirs = []
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if self.fieldname in ['RPROVIDES', 'RDEPENDS', 'RRECOMMENDS', 'RSUGGESTS', 'RREPLACES', 'RCONFLICTS']:
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(depvera, depverb) = compare_pkg_lists(self.oldvalue, self.newvalue)
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aitems = pkglist_combine(depvera)
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bitems = pkglist_combine(depverb)
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else:
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aitems = self.oldvalue.split()
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bitems = self.newvalue.split()
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if self.fieldname == 'FILELIST':
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renamed_dirs, aitems, bitems = detect_renamed_dirs(aitems, bitems)
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removed = list(set(aitems) - set(bitems))
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added = list(set(bitems) - set(aitems))
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lines = []
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if renamed_dirs:
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for dfrom, dto in renamed_dirs:
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lines.append('directory renamed %s -> %s' % (dfrom, dto))
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if removed or added:
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if removed and not bitems:
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lines.append('removed all items "%s"' % ' '.join(removed))
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else:
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if removed:
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lines.append('removed "%s"' % ' '.join(removed))
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if added:
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lines.append('added "%s"' % ' '.join(added))
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else:
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lines.append('changed order')
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out = '%s: %s' % (self.fieldname, ', '.join(lines))
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elif self.fieldname in numeric_fields:
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aval = int(self.oldvalue or 0)
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bval = int(self.newvalue or 0)
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if aval != 0:
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percentchg = ((bval - aval) / float(aval)) * 100
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else:
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percentchg = 100
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out = '%s changed from %s to %s (%s%d%%)' % (self.fieldname, self.oldvalue or "''", self.newvalue or "''", '+' if percentchg > 0 else '', percentchg)
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elif self.fieldname in defaultval_map:
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out = '%s changed from %s to %s' % (self.fieldname, self.oldvalue, self.newvalue)
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if self.fieldname == 'PKG' and '[default]' in self.newvalue:
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out += ' - may indicate debian renaming failure'
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elif self.fieldname in ['pkg_preinst', 'pkg_postinst', 'pkg_prerm', 'pkg_postrm']:
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if self.oldvalue and self.newvalue:
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out = '%s changed:\n ' % self.fieldname
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elif self.newvalue:
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out = '%s added:\n ' % self.fieldname
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elif self.oldvalue:
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out = '%s cleared:\n ' % self.fieldname
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alines = self.oldvalue.splitlines()
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blines = self.newvalue.splitlines()
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diff = difflib.unified_diff(alines, blines, self.fieldname, self.fieldname, lineterm='')
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out += '\n '.join(list(diff)[2:])
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out += '\n --'
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elif self.fieldname in img_monitor_files or '/image-files/' in self.path:
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if self.filechanges or (self.oldvalue and self.newvalue):
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fieldname = self.fieldname
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if '/image-files/' in self.path:
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fieldname = os.path.join('/' + self.path.split('/image-files/')[1], self.fieldname)
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out = 'Changes to %s:\n ' % fieldname
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else:
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if outer:
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prefix = 'Changes to %s ' % self.path
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out = '(%s):\n ' % self.fieldname
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if self.filechanges:
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out += '\n '.join(['%s' % i for i in self.filechanges])
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else:
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alines = self.oldvalue.splitlines()
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blines = self.newvalue.splitlines()
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diff = difflib.unified_diff(alines, blines, fieldname, fieldname, lineterm='')
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out += '\n '.join(list(diff))
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out += '\n --'
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else:
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out = ''
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else:
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out = '%s changed from "%s" to "%s"' % (self.fieldname, self.oldvalue, self.newvalue)
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if self.related:
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for chg in self.related:
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if not outer and chg.fieldname in ['PE', 'PV', 'PR']:
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continue
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for line in chg._str_internal(False).splitlines():
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out += '\n * %s' % line
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return '%s%s' % (prefix, out) if out else ''
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class FileChange:
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changetype_add = 'A'
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changetype_remove = 'R'
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changetype_type = 'T'
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changetype_perms = 'P'
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changetype_ownergroup = 'O'
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changetype_link = 'L'
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def __init__(self, path, changetype, oldvalue = None, newvalue = None):
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self.path = path
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self.changetype = changetype
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self.oldvalue = oldvalue
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self.newvalue = newvalue
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def _ftype_str(self, ftype):
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if ftype == '-':
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return 'file'
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elif ftype == 'd':
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return 'directory'
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elif ftype == 'l':
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return 'symlink'
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elif ftype == 'c':
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return 'char device'
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elif ftype == 'b':
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return 'block device'
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elif ftype == 'p':
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return 'fifo'
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elif ftype == 's':
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return 'socket'
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else:
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return 'unknown (%s)' % ftype
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def __str__(self):
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if self.changetype == self.changetype_add:
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return '%s was added' % self.path
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elif self.changetype == self.changetype_remove:
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return '%s was removed' % self.path
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elif self.changetype == self.changetype_type:
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return '%s changed type from %s to %s' % (self.path, self._ftype_str(self.oldvalue), self._ftype_str(self.newvalue))
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elif self.changetype == self.changetype_perms:
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return '%s changed permissions from %s to %s' % (self.path, self.oldvalue, self.newvalue)
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elif self.changetype == self.changetype_ownergroup:
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return '%s changed owner/group from %s to %s' % (self.path, self.oldvalue, self.newvalue)
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elif self.changetype == self.changetype_link:
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return '%s changed symlink target from %s to %s' % (self.path, self.oldvalue, self.newvalue)
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else:
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return '%s changed (unknown)' % self.path
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def blob_to_dict(blob):
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alines = [line for line in blob.data_stream.read().decode('utf-8').splitlines()]
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adict = {}
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for line in alines:
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splitv = [i.strip() for i in line.split('=',1)]
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if len(splitv) > 1:
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adict[splitv[0]] = splitv[1]
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return adict
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def file_list_to_dict(lines):
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adict = {}
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for line in lines:
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# Leave the last few fields intact so we handle file names containing spaces
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splitv = line.split(None,4)
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# Grab the path and remove the leading .
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path = splitv[4][1:].strip()
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# Handle symlinks
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if(' -> ' in path):
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target = path.split(' -> ')[1]
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path = path.split(' -> ')[0]
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adict[path] = splitv[0:3] + [target]
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else:
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adict[path] = splitv[0:3]
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return adict
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def compare_file_lists(alines, blines):
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adict = file_list_to_dict(alines)
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bdict = file_list_to_dict(blines)
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filechanges = []
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for path, splitv in adict.items():
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newsplitv = bdict.pop(path, None)
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if newsplitv:
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# Check type
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oldvalue = splitv[0][0]
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newvalue = newsplitv[0][0]
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if oldvalue != newvalue:
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filechanges.append(FileChange(path, FileChange.changetype_type, oldvalue, newvalue))
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# Check permissions
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oldvalue = splitv[0][1:]
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newvalue = newsplitv[0][1:]
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if oldvalue != newvalue:
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filechanges.append(FileChange(path, FileChange.changetype_perms, oldvalue, newvalue))
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# Check owner/group
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oldvalue = '%s/%s' % (splitv[1], splitv[2])
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newvalue = '%s/%s' % (newsplitv[1], newsplitv[2])
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if oldvalue != newvalue:
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filechanges.append(FileChange(path, FileChange.changetype_ownergroup, oldvalue, newvalue))
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# Check symlink target
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if newsplitv[0][0] == 'l':
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if len(splitv) > 3:
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oldvalue = splitv[3]
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else:
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oldvalue = None
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newvalue = newsplitv[3]
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if oldvalue != newvalue:
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filechanges.append(FileChange(path, FileChange.changetype_link, oldvalue, newvalue))
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else:
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filechanges.append(FileChange(path, FileChange.changetype_remove))
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# Whatever is left over has been added
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for path in bdict:
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filechanges.append(FileChange(path, FileChange.changetype_add))
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return filechanges
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def compare_lists(alines, blines):
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removed = list(set(alines) - set(blines))
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added = list(set(blines) - set(alines))
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filechanges = []
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for pkg in removed:
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filechanges.append(FileChange(pkg, FileChange.changetype_remove))
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for pkg in added:
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filechanges.append(FileChange(pkg, FileChange.changetype_add))
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return filechanges
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def compare_pkg_lists(astr, bstr):
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depvera = bb.utils.explode_dep_versions2(astr)
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depverb = bb.utils.explode_dep_versions2(bstr)
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# Strip out changes where the version has increased
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remove = []
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for k in depvera:
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if k in depverb:
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dva = depvera[k]
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dvb = depverb[k]
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if dva and dvb and len(dva) == len(dvb):
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# Since length is the same, sort so that prefixes (e.g. >=) will line up
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dva.sort()
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dvb.sort()
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removeit = True
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for dvai, dvbi in zip(dva, dvb):
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if dvai != dvbi:
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aiprefix = dvai.split(' ')[0]
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biprefix = dvbi.split(' ')[0]
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if aiprefix == biprefix and aiprefix in ['>=', '=']:
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if bb.utils.vercmp(bb.utils.split_version(dvai), bb.utils.split_version(dvbi)) > 0:
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removeit = False
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break
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else:
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removeit = False
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break
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if removeit:
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remove.append(k)
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for k in remove:
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depvera.pop(k)
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depverb.pop(k)
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return (depvera, depverb)
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def compare_dict_blobs(path, ablob, bblob, report_all, report_ver):
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adict = blob_to_dict(ablob)
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bdict = blob_to_dict(bblob)
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pkgname = os.path.basename(path)
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defaultvals = {}
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defaultvals['PKG'] = pkgname
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defaultvals['PKGE'] = '0'
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changes = []
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keys = list(set(adict.keys()) | set(bdict.keys()) | set(defaultval_map.keys()))
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for key in keys:
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astr = adict.get(key, '')
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bstr = bdict.get(key, '')
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if key in ver_monitor_fields:
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monitored = report_ver or astr or bstr
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else:
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monitored = key in monitor_fields
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mapped_key = defaultval_map.get(key, '')
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if mapped_key:
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if not astr:
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astr = '%s [default]' % adict.get(mapped_key, defaultvals.get(key, ''))
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if not bstr:
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bstr = '%s [default]' % bdict.get(mapped_key, defaultvals.get(key, ''))
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if astr != bstr:
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if (not report_all) and key in numeric_fields:
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aval = int(astr or 0)
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bval = int(bstr or 0)
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if aval != 0:
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percentchg = ((bval - aval) / float(aval)) * 100
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else:
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percentchg = 100
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if abs(percentchg) < monitor_numeric_threshold:
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continue
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elif (not report_all) and key in list_fields:
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if key == "FILELIST" and path.endswith("-dbg") and bstr.strip() != '':
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continue
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if key in ['RPROVIDES', 'RDEPENDS', 'RRECOMMENDS', 'RSUGGESTS', 'RREPLACES', 'RCONFLICTS']:
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(depvera, depverb) = compare_pkg_lists(astr, bstr)
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if depvera == depverb:
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continue
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alist = astr.split()
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alist.sort()
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blist = bstr.split()
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blist.sort()
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# We don't care about the removal of self-dependencies
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if pkgname in alist and not pkgname in blist:
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alist.remove(pkgname)
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if ' '.join(alist) == ' '.join(blist):
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continue
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if key == 'PKGR' and not report_all:
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vers = []
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# strip leading 'r' and dots
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for ver in (astr.split()[0], bstr.split()[0]):
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if ver.startswith('r'):
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ver = ver[1:]
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vers.append(ver.replace('.', ''))
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maxlen = max(len(vers[0]), len(vers[1]))
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try:
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# pad with '0' and convert to int
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vers = [int(ver.ljust(maxlen, '0')) for ver in vers]
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except ValueError:
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pass
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else:
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# skip decrements and increments
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if abs(vers[0] - vers[1]) == 1:
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continue
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chg = ChangeRecord(path, key, astr, bstr, monitored)
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changes.append(chg)
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return changes
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def compare_siglists(a_blob, b_blob, taskdiff=False):
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# FIXME collapse down a recipe's tasks?
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alines = a_blob.data_stream.read().decode('utf-8').splitlines()
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blines = b_blob.data_stream.read().decode('utf-8').splitlines()
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keys = []
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pnmap = {}
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def readsigs(lines):
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sigs = {}
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for line in lines:
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linesplit = line.split()
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if len(linesplit) > 2:
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sigs[linesplit[0]] = linesplit[2]
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if not linesplit[0] in keys:
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keys.append(linesplit[0])
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pnmap[linesplit[1]] = linesplit[0].rsplit('.', 1)[0]
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return sigs
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adict = readsigs(alines)
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bdict = readsigs(blines)
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out = []
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changecount = 0
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addcount = 0
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removecount = 0
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if taskdiff:
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with bb.tinfoil.Tinfoil() as tinfoil:
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tinfoil.prepare(config_only=True)
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changes = collections.OrderedDict()
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def compare_hashfiles(pn, taskname, hash1, hash2):
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hashes = [hash1, hash2]
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hashfiles = bb.siggen.find_siginfo(pn, taskname, hashes, tinfoil.config_data)
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if not taskname:
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|
(pn, taskname) = pn.rsplit('.', 1)
|
|
pn = pnmap.get(pn, pn)
|
|
desc = '%s.%s' % (pn, taskname)
|
|
|
|
if len(hashfiles) == 0:
|
|
out.append("Unable to find matching sigdata for %s with hashes %s or %s" % (desc, hash1, hash2))
|
|
elif not hash1 in hashfiles:
|
|
out.append("Unable to find matching sigdata for %s with hash %s" % (desc, hash1))
|
|
elif not hash2 in hashfiles:
|
|
out.append("Unable to find matching sigdata for %s with hash %s" % (desc, hash2))
|
|
else:
|
|
out2 = bb.siggen.compare_sigfiles(hashfiles[hash1], hashfiles[hash2], recursecb, collapsed=True)
|
|
for line in out2:
|
|
m = hashlib.sha256()
|
|
m.update(line.encode('utf-8'))
|
|
entry = changes.get(m.hexdigest(), (line, []))
|
|
if desc not in entry[1]:
|
|
changes[m.hexdigest()] = (line, entry[1] + [desc])
|
|
|
|
# Define recursion callback
|
|
def recursecb(key, hash1, hash2):
|
|
compare_hashfiles(key, None, hash1, hash2)
|
|
return []
|
|
|
|
for key in keys:
|
|
siga = adict.get(key, None)
|
|
sigb = bdict.get(key, None)
|
|
if siga is not None and sigb is not None and siga != sigb:
|
|
changecount += 1
|
|
(pn, taskname) = key.rsplit('.', 1)
|
|
compare_hashfiles(pn, taskname, siga, sigb)
|
|
elif siga is None:
|
|
addcount += 1
|
|
elif sigb is None:
|
|
removecount += 1
|
|
for key, item in changes.items():
|
|
line, tasks = item
|
|
if len(tasks) == 1:
|
|
desc = tasks[0]
|
|
elif len(tasks) == 2:
|
|
desc = '%s and %s' % (tasks[0], tasks[1])
|
|
else:
|
|
desc = '%s and %d others' % (tasks[-1], len(tasks)-1)
|
|
out.append('%s: %s' % (desc, line))
|
|
else:
|
|
for key in keys:
|
|
siga = adict.get(key, None)
|
|
sigb = bdict.get(key, None)
|
|
if siga is not None and sigb is not None and siga != sigb:
|
|
out.append('%s changed from %s to %s' % (key, siga, sigb))
|
|
changecount += 1
|
|
elif siga is None:
|
|
out.append('%s was added' % key)
|
|
addcount += 1
|
|
elif sigb is None:
|
|
out.append('%s was removed' % key)
|
|
removecount += 1
|
|
out.append('Summary: %d tasks added, %d tasks removed, %d tasks modified (%.1f%%)' % (addcount, removecount, changecount, (changecount / float(len(bdict)) * 100)))
|
|
return '\n'.join(out)
|
|
|
|
|
|
def process_changes(repopath, revision1, revision2='HEAD', report_all=False, report_ver=False,
|
|
sigs=False, sigsdiff=False, exclude_path=None):
|
|
repo = git.Repo(repopath)
|
|
assert repo.bare == False
|
|
commit = repo.commit(revision1)
|
|
diff = commit.diff(revision2)
|
|
|
|
changes = []
|
|
|
|
if sigs or sigsdiff:
|
|
for d in diff.iter_change_type('M'):
|
|
if d.a_blob.path == 'siglist.txt':
|
|
changes.append(compare_siglists(d.a_blob, d.b_blob, taskdiff=sigsdiff))
|
|
return changes
|
|
|
|
for d in diff.iter_change_type('M'):
|
|
path = os.path.dirname(d.a_blob.path)
|
|
if path.startswith('packages/'):
|
|
filename = os.path.basename(d.a_blob.path)
|
|
if filename == 'latest':
|
|
changes.extend(compare_dict_blobs(path, d.a_blob, d.b_blob, report_all, report_ver))
|
|
elif filename.startswith('latest.'):
|
|
chg = ChangeRecord(path, filename, d.a_blob.data_stream.read().decode('utf-8'), d.b_blob.data_stream.read().decode('utf-8'), True)
|
|
changes.append(chg)
|
|
elif path.startswith('images/'):
|
|
filename = os.path.basename(d.a_blob.path)
|
|
if filename in img_monitor_files:
|
|
if filename == 'files-in-image.txt':
|
|
alines = d.a_blob.data_stream.read().decode('utf-8').splitlines()
|
|
blines = d.b_blob.data_stream.read().decode('utf-8').splitlines()
|
|
filechanges = compare_file_lists(alines,blines)
|
|
if filechanges:
|
|
chg = ChangeRecord(path, filename, None, None, True)
|
|
chg.filechanges = filechanges
|
|
changes.append(chg)
|
|
elif filename == 'installed-package-names.txt':
|
|
alines = d.a_blob.data_stream.read().decode('utf-8').splitlines()
|
|
blines = d.b_blob.data_stream.read().decode('utf-8').splitlines()
|
|
filechanges = compare_lists(alines,blines)
|
|
if filechanges:
|
|
chg = ChangeRecord(path, filename, None, None, True)
|
|
chg.filechanges = filechanges
|
|
changes.append(chg)
|
|
else:
|
|
chg = ChangeRecord(path, filename, d.a_blob.data_stream.read().decode('utf-8'), d.b_blob.data_stream.read().decode('utf-8'), True)
|
|
changes.append(chg)
|
|
elif filename == 'image-info.txt':
|
|
changes.extend(compare_dict_blobs(path, d.a_blob, d.b_blob, report_all, report_ver))
|
|
elif '/image-files/' in path:
|
|
chg = ChangeRecord(path, filename, d.a_blob.data_stream.read().decode('utf-8'), d.b_blob.data_stream.read().decode('utf-8'), True)
|
|
changes.append(chg)
|
|
|
|
# Look for added preinst/postinst/prerm/postrm
|
|
# (without reporting newly added recipes)
|
|
addedpkgs = []
|
|
addedchanges = []
|
|
for d in diff.iter_change_type('A'):
|
|
path = os.path.dirname(d.b_blob.path)
|
|
if path.startswith('packages/'):
|
|
filename = os.path.basename(d.b_blob.path)
|
|
if filename == 'latest':
|
|
addedpkgs.append(path)
|
|
elif filename.startswith('latest.'):
|
|
chg = ChangeRecord(path, filename[7:], '', d.b_blob.data_stream.read().decode('utf-8'), True)
|
|
addedchanges.append(chg)
|
|
for chg in addedchanges:
|
|
found = False
|
|
for pkg in addedpkgs:
|
|
if chg.path.startswith(pkg):
|
|
found = True
|
|
break
|
|
if not found:
|
|
changes.append(chg)
|
|
|
|
# Look for cleared preinst/postinst/prerm/postrm
|
|
for d in diff.iter_change_type('D'):
|
|
path = os.path.dirname(d.a_blob.path)
|
|
if path.startswith('packages/'):
|
|
filename = os.path.basename(d.a_blob.path)
|
|
if filename != 'latest' and filename.startswith('latest.'):
|
|
chg = ChangeRecord(path, filename[7:], d.a_blob.data_stream.read().decode('utf-8'), '', True)
|
|
changes.append(chg)
|
|
|
|
# Link related changes
|
|
for chg in changes:
|
|
if chg.monitored:
|
|
for chg2 in changes:
|
|
# (Check dirname in the case of fields from recipe info files)
|
|
if chg.path == chg2.path or os.path.dirname(chg.path) == chg2.path:
|
|
if chg2.fieldname in related_fields.get(chg.fieldname, []):
|
|
chg.related.append(chg2)
|
|
elif chg.path == chg2.path and chg.path.startswith('packages/') and chg2.fieldname in ['PE', 'PV', 'PR']:
|
|
chg.related.append(chg2)
|
|
|
|
# filter out unwanted paths
|
|
if exclude_path:
|
|
for chg in changes:
|
|
if chg.filechanges:
|
|
fchgs = []
|
|
for fchg in chg.filechanges:
|
|
for epath in exclude_path:
|
|
if fchg.path.startswith(epath):
|
|
break
|
|
else:
|
|
fchgs.append(fchg)
|
|
chg.filechanges = fchgs
|
|
|
|
if report_all:
|
|
return changes
|
|
else:
|
|
return [chg for chg in changes if chg.monitored]
|