2 # use git bisect to work out what commit caused a test failure
3 # Copyright Andrew Tridgell 2010
4 # released under GNU GPL v3 or later
7 from subprocess import call, check_call, Popen, PIPE
8 import os, tempfile, sys
9 from optparse import OptionParser
11 parser = OptionParser()
12 parser.add_option("", "--tests", help="list of tests to run", default='*')
13 parser.add_option("", "--good", help="known good revision (default HEAD~100)", default='HEAD~100')
14 parser.add_option("", "--bad", help="known bad revision (default HEAD)", default='HEAD')
15 parser.add_option("", "--skip-build-errors", help="skip revision where make fails",
16 action='store_true', default=False)
17 parser.add_option("", "--autogen", help="run autogen before each build",action="store_true", default=False)
18 parser.add_option("", "--autogen-command", help="command to use for autogen (default ./autogen.sh)",
19 type='str', default="./autogen.sh")
20 parser.add_option("", "--configure", help="run configure.developer before each build",
21 action="store_true", default=False)
22 parser.add_option("", "--configure-command", help="the command for configure (default ./configure.developer)",
23 type='str', default="./configure.developer")
24 parser.add_option("", "--build-command", help="the command to build the tree (default 'make -j')",
25 type='str', default="make -j")
26 parser.add_option("", "--test-command", help="the command to test the tree (default 'make test')",
27 type='str', default="make test")
28 parser.add_option("", "--clean", help="run make clean before each build",
29 action="store_true", default=False)
32 (opts, args) = parser.parse_args()
35 def run_cmd(cmd, dir=".", show=True, output=False, checkfail=True):
37 print("Running: '%s' in '%s'" % (cmd, dir))
39 return Popen([cmd], shell=True, stdout=PIPE, cwd=dir).communicate()[0]
41 return check_call(cmd, shell=True, cwd=dir)
43 return call(cmd, shell=True, cwd=dir)
46 '''get to the top of the git repo'''
49 if os.path.isdir(os.path.join(p, ".git")):
51 p = os.path.abspath(os.path.join(p, '..'))
55 gitroot = find_git_root()
57 # create a bisect script
58 f = tempfile.NamedTemporaryFile(delete=False)
60 f.write("cd %s || exit 125\n" % cwd)
62 f.write("%s || exit 125\n" % opts.autogen_command)
64 f.write("%s || exit 125\n" % opts.configure_command)
66 f.write("make clean || exit 125\n")
67 if opts.skip_build_errors:
71 f.write("%s || exit %u\n" % (opts.build_command, build_err))
72 f.write("%s || exit 1\n" % opts.test_command)
77 run_cmd("git bisect reset", dir=gitroot)
84 run_cmd("git bisect reset", dir=gitroot, show=False, checkfail=False)
85 run_cmd("git bisect start %s %s --" % (opts.bad, opts.good), dir=gitroot)
86 ret = run_cmd("git bisect run bash %s" % f.name, dir=gitroot, show=True, checkfail=False)
87 except KeyboardInterrupt:
90 except Exception, reason:
91 print("Failed bisect: %s" % reason)
94 run_cmd("git bisect reset", dir=gitroot)