| bjanakiraman | 7f4a485 | 2013-02-15 04:35:28 +0000 | [diff] [blame^] | 1 | #!/usr/bin/python2.6 |
| 2 | # |
| 3 | # Copyright 2010 Google Inc. All Rights Reserved. |
| 4 | |
| 5 | """Utilities for toolchain build.""" |
| 6 | |
| 7 | |
| 8 | __author__ = "asharif@google.com (Ahmad Sharif)" |
| 9 | |
| 10 | import os |
| 11 | import subprocess |
| 12 | |
| 13 | |
| 14 | class Logger(object): |
| 15 | |
| 16 | """Logging helper class.""" |
| 17 | |
| 18 | def __init__ (self, rootdir, basefilename): |
| 19 | self._logdir = rootdir + "/logs/" |
| 20 | AtomicMkdir(self._logdir) |
| 21 | self._basefilename = basefilename |
| 22 | self._cmdfd = open(self._logdir + self._basefilename + ".cmd", "w", 0755) |
| 23 | self._stout = open(self._logdir + self._basefilename + ".out", "w") |
| 24 | self._sterr = open(self._logdir + self._basefilename + ".err", "w") |
| 25 | |
| 26 | def Stdout(self): |
| 27 | return self._stout |
| 28 | |
| 29 | def Stderr(self): |
| 30 | return self._sterr |
| 31 | |
| 32 | def Logcmd(self, cmd): |
| 33 | self._cmdfd.write(str(cmd) + "\n") |
| 34 | |
| 35 | def __del__ (self): |
| 36 | self._cmdfd.close() |
| 37 | self._stout.close() |
| 38 | self._sterr.close() |
| 39 | return |
| 40 | |
| 41 | |
| 42 | main_logger = None |
| 43 | |
| 44 | |
| 45 | def InitLogger(rootdir, basefilename): |
| 46 | """Initialize a global logger. To be called only once.""" |
| 47 | global main_logger |
| 48 | main_logger = Logger(rootdir, basefilename) |
| 49 | |
| 50 | |
| 51 | def GetRoot(scr_name): |
| 52 | """Break up pathname into (dir+name).""" |
| 53 | abs_path = os.path.abspath(scr_name) |
| 54 | return (os.path.dirname(abs_path), os.path.basename(abs_path)) |
| 55 | |
| 56 | |
| 57 | def RunCommand(cmd): |
| 58 | """"Run a command while redirecting stdout and stderr to predefined files.""" |
| 59 | cmdlist = ["bash", "-c", cmd] |
| 60 | main_logger.Logcmd(cmdlist) |
| 61 | stout = main_logger.Stdout() |
| 62 | sterr = main_logger.Stderr() |
| 63 | p = subprocess.Popen(cmdlist, stdout=stout, stderr=sterr) |
| 64 | p.wait() |
| 65 | return p.returncode |
| 66 | |
| 67 | |
| 68 | def RunCommands(cmdlist): |
| 69 | cmd = " ; " .join(cmdlist) |
| 70 | print "CMD=", cmd |
| 71 | return RunCommand(cmd) |
| 72 | |
| 73 | |
| 74 | def DoCommand(cmd): |
| 75 | """"Run a command and return stdout and stderr as string. Log output.""" |
| 76 | cmdlist = ["bash", "-c", cmd] |
| 77 | main_logger.Logcmd(cmdlist) |
| 78 | p = subprocess.Popen(cmdlist, stdout=subprocess.PIPE, |
| 79 | stderr=subprocess.PIPE) |
| 80 | (out, err) = p.communicate() |
| 81 | # For now, log the output and error in the standard place. May need to revisit |
| 82 | # if its making out files too large. |
| 83 | stout = main_logger.Stdout() |
| 84 | sterr = main_logger.Stderr() |
| 85 | stout.write(out) |
| 86 | sterr.write(err) |
| 87 | stout.flush() |
| 88 | sterr.flush() |
| 89 | return (p.returncode, out, err) |
| 90 | |
| 91 | |
| 92 | def DoCommands(cmdlist): |
| 93 | cmd = " ; " .join(cmdlist) |
| 94 | return DoCommand(cmd) |
| 95 | |
| 96 | |
| 97 | def AtomicMkdir(newdir): |
| 98 | try: |
| 99 | os.makedirs(newdir) |
| 100 | except OSError: |
| 101 | # Check if it has been created, perhaps by another process |
| 102 | if os.path.exists(newdir): |
| 103 | return |