Squashed 'yocto-poky/' content from commit ea562de
git-subtree-dir: yocto-poky
git-subtree-split: ea562de57590c966cd5a75fda8defecd397e6436
diff --git a/bitbake/lib/toaster/contrib/tts/shellutils.py b/bitbake/lib/toaster/contrib/tts/shellutils.py
new file mode 100644
index 0000000..c2012ed
--- /dev/null
+++ b/bitbake/lib/toaster/contrib/tts/shellutils.py
@@ -0,0 +1,141 @@
+#!/usr/bin/python
+
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+#
+# Copyright (C) 2015 Alexandru Damian for Intel Corp.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+# Utilities shared by tests and other common bits of code.
+
+import sys, os, subprocess, fcntl, errno
+import config
+from config import logger
+
+
+# License warning; this code is copied from the BitBake project, file bitbake/lib/bb/utils.py
+# The code is originally licensed GPL-2.0, and we redistribute it under still GPL-2.0
+
+# End of copy is marked with #ENDOFCOPY marker
+
+def mkdirhier(directory):
+ """Create a directory like 'mkdir -p', but does not complain if
+ directory already exists like os.makedirs
+ """
+
+ try:
+ os.makedirs(directory)
+ except OSError as exc:
+ if exc.errno != errno.EEXIST:
+ raise exc
+
+def lockfile(name, shared=False, retry=True):
+ """
+ Use the file fn as a lock file, return when the lock has been acquired.
+ Returns a variable to pass to unlockfile().
+ """
+ config.logger.debug("take lockfile %s", name)
+ dirname = os.path.dirname(name)
+ mkdirhier(dirname)
+
+ if not os.access(dirname, os.W_OK):
+ logger.error("Unable to acquire lock '%s', directory is not writable",
+ name)
+ sys.exit(1)
+
+ operation = fcntl.LOCK_EX
+ if shared:
+ operation = fcntl.LOCK_SH
+ if not retry:
+ operation = operation | fcntl.LOCK_NB
+
+ while True:
+ # If we leave the lockfiles lying around there is no problem
+ # but we should clean up after ourselves. This gives potential
+ # for races though. To work around this, when we acquire the lock
+ # we check the file we locked was still the lock file on disk.
+ # by comparing inode numbers. If they don't match or the lockfile
+ # no longer exists, we start again.
+
+ # This implementation is unfair since the last person to request the
+ # lock is the most likely to win it.
+
+ # pylint: disable=broad-except
+ # we disable the broad-except because we want to actually catch all possible exceptions
+ try:
+ lock_file = open(name, 'a+')
+ fileno = lock_file.fileno()
+ fcntl.flock(fileno, operation)
+ statinfo = os.fstat(fileno)
+ if os.path.exists(lock_file.name):
+ statinfo2 = os.stat(lock_file.name)
+ if statinfo.st_ino == statinfo2.st_ino:
+ return lock_file
+ lock_file.close()
+ except Exception as exc:
+ try:
+ lock_file.close()
+ except Exception as exc2:
+ config.logger.error("Failed to close the lockfile: %s", exc2)
+ config.logger.error("Failed to acquire the lockfile: %s", exc)
+ if not retry:
+ return None
+
+def unlockfile(lock_file):
+ """
+ Unlock a file locked using lockfile()
+ """
+ try:
+ # If we had a shared lock, we need to promote to exclusive before
+ # removing the lockfile. Attempt this, ignore failures.
+ fcntl.flock(lock_file.fileno(), fcntl.LOCK_EX|fcntl.LOCK_NB)
+ os.unlink(lock_file.name)
+ except (IOError, OSError):
+ pass
+ fcntl.flock(lock_file.fileno(), fcntl.LOCK_UN)
+ lock_file.close()
+
+#ENDOFCOPY
+
+
+def mk_lock_filename():
+ our_name = os.path.basename(__file__)
+ our_name = ".%s" % ".".join(reversed(our_name.split(".")))
+ return config.LOCKFILE + our_name
+
+
+
+class ShellCmdException(Exception):
+ pass
+
+def run_shell_cmd(command, cwd=None):
+ if cwd is None:
+ cwd = os.getcwd()
+
+ config.logger.debug("_shellcmd: (%s) %s", cwd, command)
+ process = subprocess.Popen(command, cwd=cwd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+ (out, err) = process.communicate()
+ process.wait()
+ if process.returncode:
+ if len(err) == 0:
+ err = "command: %s \n%s" % (command, out)
+ else:
+ err = "command: %s \n%s" % (command, err)
+ config.logger.warn("_shellcmd: error \n%s\n%s", out, err)
+ raise ShellCmdException(err)
+ else:
+ #config.logger.debug("localhostbecontroller: shellcmd success\n%s" % out)
+ return out
+