1 # -*- coding: utf-8 -*-
4 Copyright (C) 2007, Karl Hasselström <kha@treskal.com>
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License version 2 as
8 published by the Free Software Foundation.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 import datetime, os, subprocess
22 from stgit.exception import *
23 from stgit.out import *
25 class RunException(StgException):
26 """Thrown when something bad happened when we tried to run the
30 def get_log_mode(spec):
33 (log_mode, outfile) = spec.split(':', 1)
34 all_log_modes = ['debug', 'profile']
35 if log_mode and not log_mode in all_log_modes:
36 out.warn(('Unknown log mode "%s" specified in $STGIT_SUBPROCESS_LOG.'
38 'Valid values are: %s' % ', '.join(all_log_modes))
40 f = MessagePrinter(open(outfile, 'a'))
45 (_log_mode, _logfile) = get_log_mode(os.environ.get('STGIT_SUBPROCESS_LOG', ''))
46 if _log_mode == 'profile':
47 _log_starttime = datetime.datetime.now()
48 _log_subproctime = 0.0
52 return 86400*d.days + d.seconds + 1e-6*d.microseconds
55 if _log_mode != 'profile':
57 ttime = duration(_log_starttime, datetime.datetime.now())
58 rtime = ttime - _log_subproctime
59 _logfile.info('Total time: %1.3f s' % ttime,
60 'Time spent in subprocess calls: %1.3f s (%1.1f%%)'
61 % (_log_subproctime, 100*_log_subproctime/ttime),
62 'Remaining time: %1.3f s (%1.1f%%)'
63 % (rtime, 100*rtime/ttime))
67 def __init__(self, *cmd):
68 self.__cmd = list(cmd)
71 raise Exception, 'Bad command: %r' % (cmd,)
72 self.__good_retvals = [0]
73 self.__env = self.__cwd = None
75 self.__discard_stderr = False
76 def __log_start(self):
77 if _log_mode == 'debug':
78 _logfile.start('Running subprocess %s' % self.__cmd)
79 if self.__cwd != None:
80 _logfile.info('cwd: %s' % self.__cwd)
81 if self.__env != None:
82 for k in sorted(self.__env.iterkeys()):
83 if k not in os.environ or os.environ[k] != self.__env[k]:
84 _logfile.info('%s: %s' % (k, self.__env[k]))
85 elif _log_mode == 'profile':
86 _logfile.start('Running subprocess %s' % self.__cmd)
87 self.__starttime = datetime.datetime.now()
88 def __log_end(self, retcode):
89 global _log_subproctime, _log_starttime
90 if _log_mode == 'debug':
91 _logfile.done('return code: %d' % retcode)
92 elif _log_mode == 'profile':
93 n = datetime.datetime.now()
94 d = duration(self.__starttime, n)
95 _logfile.done('%1.3f s' % d)
97 _logfile.info('Time since program start: %1.3f s'
98 % duration(_log_starttime, n))
99 def __check_exitcode(self):
100 if self.__good_retvals == None:
102 if self.exitcode not in self.__good_retvals:
103 raise self.exc('%s failed with code %d'
104 % (self.__cmd[0], self.exitcode))
106 """Run with captured IO."""
109 p = subprocess.Popen(self.__cmd, env = self.__env, cwd = self.__cwd,
110 stdin = subprocess.PIPE,
111 stdout = subprocess.PIPE,
112 stderr = subprocess.PIPE)
113 outdata, errdata = p.communicate(self.__indata)
114 self.exitcode = p.returncode
116 raise self.exc('%s failed: %s' % (self.__cmd[0], e))
117 if errdata and not self.__discard_stderr:
119 self.__log_end(self.exitcode)
120 self.__check_exitcode()
122 def __run_noio(self):
123 """Run without captured IO."""
124 assert self.__indata == None
127 p = subprocess.Popen(self.__cmd, env = self.__env, cwd = self.__cwd)
128 self.exitcode = p.wait()
130 raise self.exc('%s failed: %s' % (self.__cmd[0], e))
131 self.__log_end(self.exitcode)
132 self.__check_exitcode()
133 def returns(self, retvals):
134 self.__good_retvals = retvals
136 def discard_exitcode(self):
137 self.__good_retvals = None
139 def discard_stderr(self, discard = True):
140 self.__discard_stderr = discard
143 self.__env = dict(os.environ)
144 self.__env.update(env)
149 def raw_input(self, indata):
150 self.__indata = indata
152 def input_lines(self, lines):
153 self.__indata = ''.join(['%s\n' % line for line in lines])
155 def input_nulterm(self, lines):
156 self.__indata = ''.join('%s\0' % line for line in lines)
159 outdata = self.__run_io()
161 raise self.exc, '%s produced output' % self.__cmd[0]
162 def discard_output(self):
164 def raw_output(self):
165 return self.__run_io()
166 def output_lines(self):
167 outdata = self.__run_io()
168 if outdata.endswith('\n'):
169 outdata = outdata[:-1]
171 return outdata.split('\n')
174 def output_one_line(self):
175 outlines = self.output_lines()
176 if len(outlines) == 1:
179 raise self.exc('%s produced %d lines, expected 1'
180 % (self.__cmd[0], len(outlines)))
182 """Just run, with no IO redirection."""
184 def xargs(self, xargs):
185 """Just run, with no IO redirection. The extra arguments are
186 appended to the command line a few at a time; the command is
187 run as many times as needed to consume them all."""
190 for i in xrange(0, len(xargs), step):
191 self.__cmd = basecmd + xargs[i:i+step]