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authorPaul Eggleton <paul.eggleton@linux.intel.com>2012-01-05 14:46:25 (GMT)
committerRichard Purdie <richard.purdie@linuxfoundation.org>2012-01-06 12:11:30 (GMT)
commitfcc5f6883c5913d85a98349411ea394045e1f52d (patch)
tree441af80ec5b9648d83f093e4478d896c8bca0d26 /meta/lib
parentf22c29226169e6f7cade67cf48f0ac67c1ae4822 (diff)
downloadpoky-fcc5f6883c5913d85a98349411ea394045e1f52d.tar.gz
buildhistory: add script to check for significant changes
Adds a buildhistory-diff script which can be used to analyse changes in the buildhistory git repository (as produced by buildhistory.bbclass), and report significant ones that may need manual checking to ensure they aren't regressions (e.g. package size changed by more than a certain percentage, files added/removed/changed in the image, etc.) The implementation is actually split into a small script and a Python module, in order to make the logic re-usable in a future web-based interface. Implements the first part of [YOCTO #1566]. (From OE-Core rev: 5e5cbb9bd8cdce402b979680288ac8c51799a24d) Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/lib')
-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 0000000..9f42fe3
--- /dev/null
+++ b/meta/lib/oe/buildhistory_analysis.py
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1# Report significant differences in the buildhistory repository since a specific revision
2#
3# Copyright (C) 2012 Intel Corporation
4# Author: Paul Eggleton <paul.eggleton@linux.intel.com>
5#
6# Note: requires GitPython 0.3.1+
7#
8# You can use this from the command line by running scripts/buildhistory-diff
9#
10
11import sys
12import os.path
13import difflib
14import git
15
16
17# How to display fields
18pkg_list_fields = ['DEPENDS', 'RDEPENDS', 'RRECOMMENDS', 'PACKAGES', 'FILES', 'FILELIST']
19pkg_numeric_fields = ['PKGSIZE']
20# Fields to monitor
21pkg_monitor_fields = ['RDEPENDS', 'RRECOMMENDS', 'PACKAGES', 'FILELIST', 'PKGSIZE']
22# Percentage change to alert for numeric fields
23pkg_monitor_numeric_threshold = 20
24# Image files to monitor
25img_monitor_files = ['installed-package-names.txt', 'files-in-image.txt']
26
27
28class ChangeRecord:
29 def __init__(self, path, fieldname, oldvalue, newvalue):
30 self.path = path
31 self.fieldname = fieldname
32 self.oldvalue = oldvalue
33 self.newvalue = newvalue
34 self.filechanges = None
35
36 def __str__(self):
37 if self.fieldname in pkg_list_fields:
38 aitems = self.oldvalue.split(' ')
39 bitems = self.newvalue.split(' ')
40 removed = list(set(aitems) - set(bitems))
41 added = list(set(bitems) - set(aitems))
42 return '%s: %s:%s%s' % (self.path, self.fieldname, ' removed "%s"' % ' '.join(removed) if removed else '', ' added "%s"' % ' '.join(added) if added else '')
43 elif self.fieldname in pkg_numeric_fields:
44 aval = int(self.oldvalue)
45 bval = int(self.newvalue)
46 percentchg = ((bval - aval) / float(aval)) * 100
47 return '%s: %s changed from %d to %d (%s%d%%)' % (self.path, self.fieldname, aval, bval, '+' if percentchg > 0 else '', percentchg)
48 elif self.fieldname in img_monitor_files:
49 out = 'Changes to %s (%s):\n ' % (self.path, self.fieldname)
50 if self.filechanges:
51 out += '\n '.join(['%s' % i for i in self.filechanges])
52 else:
53 alines = self.oldvalue.splitlines()
54 blines = self.newvalue.splitlines()
55 diff = difflib.unified_diff(alines, blines, self.fieldname, self.fieldname, lineterm='')
56 out += '\n '.join(list(diff))
57 out += '\n --'
58 return out
59 else:
60 return '%s: %s changed from "%s" to "%s"' % (self.path, self.self.fieldname, self.oldvalue, self.newvalue)
61
62
63class FileChange:
64 changetype_add = 'A'
65 changetype_remove = 'R'
66 changetype_type = 'T'
67 changetype_perms = 'P'
68 changetype_ownergroup = 'O'
69 changetype_link = 'L'
70
71 def __init__(self, path, changetype, oldvalue = None, newvalue = None):
72 self.path = path
73 self.changetype = changetype
74 self.oldvalue = oldvalue
75 self.newvalue = newvalue
76
77 def _ftype_str(self, ftype):
78 if ftype == '-':
79 return 'file'
80 elif ftype == 'd':
81 return 'directory'
82 elif ftype == 'l':
83 return 'symlink'
84 elif ftype == 'c':
85 return 'char device'
86 elif ftype == 'b':
87 return 'block device'
88 elif ftype == 'p':
89 return 'fifo'
90 elif ftype == 's':
91 return 'socket'
92 else:
93 return 'unknown (%s)' % ftype
94
95 def __str__(self):
96 if self.changetype == self.changetype_add:
97 return '%s was added' % self.path
98 elif self.changetype == self.changetype_remove:
99 return '%s was removed' % self.path
100 elif self.changetype == self.changetype_type:
101 return '%s changed type from %s to %s' % (self.path, self._ftype_str(self.oldvalue), self._ftype_str(self.newvalue))
102 elif self.changetype == self.changetype_perms:
103 return '%s changed permissions from %s to %s' % (self.path, self.oldvalue, self.newvalue)
104 elif self.changetype == self.changetype_ownergroup:
105 return '%s changed owner/group from %s to %s' % (self.path, self.oldvalue, self.newvalue)
106 elif self.changetype == self.changetype_link:
107 return '%s changed symlink target from %s to %s' % (self.path, self.oldvalue, self.newvalue)
108 else:
109 return '%s changed (unknown)' % self.path
110
111
112def blob_to_dict(blob):
113 alines = blob.data_stream.read().splitlines()
114 adict = {}
115 for line in alines:
116 splitv = [i.strip() for i in line.split('=',1)]
117 if splitv.count > 1:
118 adict[splitv[0]] = splitv[1]
119 return adict
120
121
122def file_list_to_dict(lines):
123 adict = {}
124 for line in lines:
125 # Leave the last few fields intact so we handle file names containing spaces
126 splitv = line.split(None,4)
127 # Grab the path and remove the leading .
128 path = splitv[4][1:].strip()
129 # Handle symlinks
130 if(' -> ' in path):
131 target = path.split(' -> ')[1]
132 path = path.split(' -> ')[0]
133 adict[path] = splitv[0:3] + [target]
134 else:
135 adict[path] = splitv[0:3]
136 return adict
137
138
139def compare_file_lists(alines, blines):
140 adict = file_list_to_dict(alines)
141 bdict = file_list_to_dict(blines)
142 filechanges = []
143 for path, splitv in adict.iteritems():
144 newsplitv = bdict.pop(path, None)
145 if newsplitv:
146 # Check type
147 oldvalue = splitv[0][0]
148 newvalue = newsplitv[0][0]
149 if oldvalue != newvalue:
150 filechanges.append(FileChange(path, FileChange.changetype_type, oldvalue, newvalue))
151 # Check permissions
152 oldvalue = splitv[0][1:]
153 newvalue = newsplitv[0][1:]
154 if oldvalue != newvalue:
155 filechanges.append(FileChange(path, FileChange.changetype_perms, oldvalue, newvalue))
156 # Check owner/group
157 oldvalue = '%s/%s' % (splitv[1], splitv[2])
158 newvalue = '%s/%s' % (newsplitv[1], newsplitv[2])
159 if oldvalue != newvalue:
160 filechanges.append(FileChange(path, FileChange.changetype_ownergroup, oldvalue, newvalue))
161 # Check symlink target
162 if newsplitv[0][0] == 'l':
163 if splitv.count > 3:
164 oldvalue = splitv[3]
165 else:
166 oldvalue = None
167 newvalue = newsplitv[3]
168 if oldvalue != newvalue:
169 filechanges.append(FileChange(path, FileChange.changetype_link, oldvalue, newvalue))
170 else:
171 filechanges.append(FileChange(path, FileChange.changetype_remove))
172
173 # Whatever is left over has been added
174 for path in bdict:
175 filechanges.append(FileChange(path, FileChange.changetype_add))
176
177 return filechanges
178
179
180def compare_lists(alines, blines):
181 removed = list(set(alines) - set(blines))
182 added = list(set(blines) - set(alines))
183
184 filechanges = []
185 for pkg in removed:
186 filechanges.append(FileChange(pkg, FileChange.changetype_remove))
187 for pkg in added:
188 filechanges.append(FileChange(pkg, FileChange.changetype_add))
189
190 return filechanges
191
192
193def process_changes(repopath, revision1, revision2 = 'HEAD', report_all = False):
194 repo = git.Repo(repopath)
195 assert repo.bare == False
196 commit = repo.commit(revision1)
197 diff = commit.diff(revision2)
198
199 changes = []
200 for d in diff.iter_change_type('M'):
201 path = os.path.dirname(d.a_blob.path)
202 if path.startswith('packages/'):
203 adict = blob_to_dict(d.a_blob)
204 bdict = blob_to_dict(d.b_blob)
205
206 for key in adict:
207 if report_all or key in pkg_monitor_fields:
208 if adict[key] != bdict[key]:
209 if (not report_all) and key in pkg_numeric_fields:
210 aval = int(adict[key])
211 bval = int(bdict[key])
212 percentchg = ((bval - aval) / float(aval)) * 100
213 if percentchg < pkg_monitor_numeric_threshold:
214 continue
215 chg = ChangeRecord(path, key, adict[key], bdict[key])
216 changes.append(chg)
217 elif path.startswith('images/'):
218 filename = os.path.basename(d.a_blob.path)
219 if filename in img_monitor_files:
220 if filename == 'files-in-image.txt':
221 alines = d.a_blob.data_stream.read().splitlines()
222 blines = d.b_blob.data_stream.read().splitlines()
223 filechanges = compare_file_lists(alines,blines)
224 if filechanges:
225 chg = ChangeRecord(path, filename, None, None)
226 chg.filechanges = filechanges
227 changes.append(chg)
228 elif filename == 'installed-package-names.txt':
229 alines = d.a_blob.data_stream.read().splitlines()
230 blines = d.b_blob.data_stream.read().splitlines()
231 filechanges = compare_lists(alines,blines)
232 if filechanges:
233 chg = ChangeRecord(path, filename, None, None)
234 chg.filechanges = filechanges
235 changes.append(chg)
236 else:
237 chg = ChangeRecord(path, filename, d.a_blob.data_stream.read(), d.b_blob.data_stream.read())
238 changes.append(chg)
239
240 return changes