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-rw-r--r--tools/update-verify/python/util/commands.py57
1 files changed, 57 insertions, 0 deletions
diff --git a/tools/update-verify/python/util/commands.py b/tools/update-verify/python/util/commands.py
new file mode 100644
index 0000000000..e53464e6f8
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+++ b/tools/update-verify/python/util/commands.py
@@ -0,0 +1,57 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this file,
+# You can obtain one at http://mozilla.org/MPL/2.0/.
+
+"""Functions for running commands"""
+
+import logging
+import os
+import subprocess
+import time
+
+import six
+
+log = logging.getLogger(__name__)
+
+
+# timeout message, used in TRANSIENT_HG_ERRORS and in tests.
+TERMINATED_PROCESS_MSG = "timeout, process terminated"
+
+
+def log_cmd(cmd, **kwargs):
+ # cwd is special in that we always want it printed, even if it's not
+ # explicitly chosen
+ kwargs = kwargs.copy()
+ if "cwd" not in kwargs:
+ kwargs["cwd"] = os.getcwd()
+ log.info("command: START")
+ log.info("command: %s" % subprocess.list2cmdline(cmd))
+ for key, value in six.iteritems(kwargs):
+ log.info("command: %s: %s", key, str(value))
+
+
+def merge_env(env):
+ new_env = os.environ.copy()
+ new_env.update(env)
+ return new_env
+
+
+def run_cmd(cmd, **kwargs):
+ """Run cmd (a list of arguments). Raise subprocess.CalledProcessError if
+ the command exits with non-zero. If the command returns successfully,
+ return 0."""
+ log_cmd(cmd, **kwargs)
+ # We update this after logging because we don't want all of the inherited
+ # env vars muddling up the output
+ if "env" in kwargs:
+ kwargs["env"] = merge_env(kwargs["env"])
+ try:
+ t = time.monotonic()
+ log.info("command: output:")
+ return subprocess.check_call(cmd, **kwargs)
+ except subprocess.CalledProcessError:
+ log.info("command: ERROR", exc_info=True)
+ raise
+ finally:
+ elapsed = time.monotonic() - t
+ log.info("command: END (%.2fs elapsed)\n", elapsed)