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-rw-r--r--meta/lib/oe/buildhistory_analysis.py240
1 files changed, 240 insertions, 0 deletions
diff --git a/meta/lib/oe/buildhistory_analysis.py b/meta/lib/oe/buildhistory_analysis.py
new file mode 100644
index 000000000..9f42fe38a
--- /dev/null
+++ b/meta/lib/oe/buildhistory_analysis.py
@@ -0,0 +1,240 @@
+# Report significant differences in the buildhistory repository since a specific revision
+#
+# Copyright (C) 2012 Intel Corporation
+# Author: Paul Eggleton <paul.eggleton@linux.intel.com>
+#
+# Note: requires GitPython 0.3.1+
+#
+# You can use this from the command line by running scripts/buildhistory-diff
+#
+
+import sys
+import os.path
+import difflib
+import git
+
+
+# How to display fields
+pkg_list_fields = ['DEPENDS', 'RDEPENDS', 'RRECOMMENDS', 'PACKAGES', 'FILES', 'FILELIST']
+pkg_numeric_fields = ['PKGSIZE']
+# Fields to monitor
+pkg_monitor_fields = ['RDEPENDS', 'RRECOMMENDS', 'PACKAGES', 'FILELIST', 'PKGSIZE']
+# Percentage change to alert for numeric fields
+pkg_monitor_numeric_threshold = 20
+# Image files to monitor
+img_monitor_files = ['installed-package-names.txt', 'files-in-image.txt']
+
+
+class ChangeRecord:
+ def __init__(self, path, fieldname, oldvalue, newvalue):
+ self.path = path
+ self.fieldname = fieldname
+ self.oldvalue = oldvalue
+ self.newvalue = newvalue
+ self.filechanges = None
+
+ def __str__(self):
+ if self.fieldname in pkg_list_fields:
+ aitems = self.oldvalue.split(' ')
+ bitems = self.newvalue.split(' ')
+ removed = list(set(aitems) - set(bitems))
+ added = list(set(bitems) - set(aitems))
+ return '%s: %s:%s%s' % (self.path, self.fieldname, ' removed "%s"' % ' '.join(removed) if removed else '', ' added "%s"' % ' '.join(added) if added else '')
+ elif self.fieldname in pkg_numeric_fields:
+ aval = int(self.oldvalue)
+ bval = int(self.newvalue)
+ percentchg = ((bval - aval) / float(aval)) * 100
+ return '%s: %s changed from %d to %d (%s%d%%)' % (self.path, self.fieldname, aval, bval, '+' if percentchg > 0 else '', percentchg)
+ elif self.fieldname in img_monitor_files:
+ out = 'Changes to %s (%s):\n ' % (self.path, self.fieldname)
+ if self.filechanges:
+ out += '\n '.join(['%s' % i for i in self.filechanges])
+ else:
+ alines = self.oldvalue.splitlines()
+ blines = self.newvalue.splitlines()
+ diff = difflib.unified_diff(alines, blines, self.fieldname, self.fieldname, lineterm='')
+ out += '\n '.join(list(diff))
+ out += '\n --'
+ return out
+ else:
+ return '%s: %s changed from "%s" to "%s"' % (self.path, self.self.fieldname, self.oldvalue, self.newvalue)
+
+
+class FileChange:
+ changetype_add = 'A'
+ changetype_remove = 'R'
+ changetype_type = 'T'
+ changetype_perms = 'P'
+ changetype_ownergroup = 'O'
+ changetype_link = 'L'
+
+ def __init__(self, path, changetype, oldvalue = None, newvalue = None):
+ self.path = path
+ self.changetype = changetype
+ self.oldvalue = oldvalue
+ self.newvalue = newvalue
+
+ def _ftype_str(self, ftype):
+ if ftype == '-':
+ return 'file'
+ elif ftype == 'd':
+ return 'directory'
+ elif ftype == 'l':
+ return 'symlink'
+ elif ftype == 'c':
+ return 'char device'
+ elif ftype == 'b':
+ return 'block device'
+ elif ftype == 'p':
+ return 'fifo'
+ elif ftype == 's':
+ return 'socket'
+ else:
+ return 'unknown (%s)' % ftype
+
+ def __str__(self):
+ if self.changetype == self.changetype_add:
+ return '%s was added' % self.path
+ elif self.changetype == self.changetype_remove:
+ return '%s was removed' % self.path
+ elif self.changetype == self.changetype_type:
+ return '%s changed type from %s to %s' % (self.path, self._ftype_str(self.oldvalue), self._ftype_str(self.newvalue))
+ elif self.changetype == self.changetype_perms:
+ return '%s changed permissions from %s to %s' % (self.path, self.oldvalue, self.newvalue)
+ elif self.changetype == self.changetype_ownergroup:
+ return '%s changed owner/group from %s to %s' % (self.path, self.oldvalue, self.newvalue)
+ elif self.changetype == self.changetype_link:
+ return '%s changed symlink target from %s to %s' % (self.path, self.oldvalue, self.newvalue)
+ else:
+ return '%s changed (unknown)' % self.path
+
+
+def blob_to_dict(blob):
+ alines = blob.data_stream.read().splitlines()
+ adict = {}
+ for line in alines:
+ splitv = [i.strip() for i in line.split('=',1)]
+ if splitv.count > 1:
+ adict[splitv[0]] = splitv[1]
+ return adict
+
+
+def file_list_to_dict(lines):
+ adict = {}
+ for line in lines:
+ # Leave the last few fields intact so we handle file names containing spaces
+ splitv = line.split(None,4)
+ # Grab the path and remove the leading .
+ path = splitv[4][1:].strip()
+ # Handle symlinks
+ if(' -> ' in path):
+ target = path.split(' -> ')[1]
+ path = path.split(' -> ')[0]
+ adict[path] = splitv[0:3] + [target]
+ else:
+ adict[path] = splitv[0:3]
+ return adict
+
+
+def compare_file_lists(alines, blines):
+ adict = file_list_to_dict(alines)
+ bdict = file_list_to_dict(blines)
+ filechanges = []
+ for path, splitv in adict.iteritems():
+ newsplitv = bdict.pop(path, None)
+ if newsplitv:
+ # Check type
+ oldvalue = splitv[0][0]
+ newvalue = newsplitv[0][0]
+ if oldvalue != newvalue:
+ filechanges.append(FileChange(path, FileChange.changetype_type, oldvalue, newvalue))
+ # Check permissions
+ oldvalue = splitv[0][1:]
+ newvalue = newsplitv[0][1:]
+ if oldvalue != newvalue:
+ filechanges.append(FileChange(path, FileChange.changetype_perms, oldvalue, newvalue))
+ # Check owner/group
+ oldvalue = '%s/%s' % (splitv[1], splitv[2])
+ newvalue = '%s/%s' % (newsplitv[1], newsplitv[2])
+ if oldvalue != newvalue:
+ filechanges.append(FileChange(path, FileChange.changetype_ownergroup, oldvalue, newvalue))
+ # Check symlink target
+ if newsplitv[0][0] == 'l':
+ if splitv.count > 3:
+ oldvalue = splitv[3]
+ else:
+ oldvalue = None
+ newvalue = newsplitv[3]
+ if oldvalue != newvalue:
+ filechanges.append(FileChange(path, FileChange.changetype_link, oldvalue, newvalue))
+ else:
+ filechanges.append(FileChange(path, FileChange.changetype_remove))
+
+ # Whatever is left over has been added
+ for path in bdict:
+ filechanges.append(FileChange(path, FileChange.changetype_add))
+
+ return filechanges
+
+
+def compare_lists(alines, blines):
+ removed = list(set(alines) - set(blines))
+ added = list(set(blines) - set(alines))
+
+ filechanges = []
+ for pkg in removed:
+ filechanges.append(FileChange(pkg, FileChange.changetype_remove))
+ for pkg in added:
+ filechanges.append(FileChange(pkg, FileChange.changetype_add))
+
+ return filechanges
+
+
+def process_changes(repopath, revision1, revision2 = 'HEAD', report_all = False):
+ repo = git.Repo(repopath)
+ assert repo.bare == False
+ commit = repo.commit(revision1)
+ diff = commit.diff(revision2)
+
+ changes = []
+ for d in diff.iter_change_type('M'):
+ path = os.path.dirname(d.a_blob.path)
+ if path.startswith('packages/'):
+ adict = blob_to_dict(d.a_blob)
+ bdict = blob_to_dict(d.b_blob)
+
+ for key in adict:
+ if report_all or key in pkg_monitor_fields:
+ if adict[key] != bdict[key]:
+ if (not report_all) and key in pkg_numeric_fields:
+ aval = int(adict[key])
+ bval = int(bdict[key])
+ percentchg = ((bval - aval) / float(aval)) * 100
+ if percentchg < pkg_monitor_numeric_threshold:
+ continue
+ chg = ChangeRecord(path, key, adict[key], bdict[key])
+ 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().splitlines()
+ blines = d.b_blob.data_stream.read().splitlines()
+ filechanges = compare_file_lists(alines,blines)
+ if filechanges:
+ chg = ChangeRecord(path, filename, None, None)
+ chg.filechanges = filechanges
+ changes.append(chg)
+ elif filename == 'installed-package-names.txt':
+ alines = d.a_blob.data_stream.read().splitlines()
+ blines = d.b_blob.data_stream.read().splitlines()
+ filechanges = compare_lists(alines,blines)
+ if filechanges:
+ chg = ChangeRecord(path, filename, None, None)
+ chg.filechanges = filechanges
+ changes.append(chg)
+ else:
+ chg = ChangeRecord(path, filename, d.a_blob.data_stream.read(), d.b_blob.data_stream.read())
+ changes.append(chg)
+
+ return changes