add mitogen - requires ansible 2.7

mitogen-0.2.7/mitogen/__init__.py

@@ -0,0 +1,120 @@
+# Copyright 2019, David Wilson
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice,
+# this list of conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice,
+# this list of conditions and the following disclaimer in the documentation
+# and/or other materials provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors
+# may be used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+
+# !mitogen: minify_safe
+
+"""
+On the Mitogen master, this is imported from ``mitogen/__init__.py`` as would
+be expected. On the slave, it is built dynamically during startup.
+"""
+
+
+#: Library version as a tuple.
+__version__ = (0, 2, 7)
+
+
+#: This is :data:`False` in slave contexts. Previously it was used to prevent
+#: re-execution of :mod:`__main__` in single file programs, however that now
+#: happens automatically.
+is_master = True
+
+
+#: This is `0` in a master, otherwise it is the master-assigned ID unique to
+#: the slave context used for message routing.
+context_id = 0
+
+
+#: This is :data:`None` in a master, otherwise it is the master-assigned ID
+#: unique to the slave's parent context.
+parent_id = None
+
+
+#: This is an empty list in a master, otherwise it is a list of parent context
+#: IDs ordered from most direct to least direct.
+parent_ids = []
+
+
+import os
+_default_profiling = os.environ.get('MITOGEN_PROFILING') is not None
+del os
+
+
+def main(log_level='INFO', profiling=_default_profiling):
+    """
+    Convenience decorator primarily useful for writing discardable test
+    scripts.
+
+    In the master process, when `func` is defined in the :mod:`__main__`
+    module, arranges for `func(router)` to be invoked immediately, with
+    :py:class:`mitogen.master.Router` construction and destruction handled just
+    as in :py:func:`mitogen.utils.run_with_router`. In slaves, this function
+    does nothing.
+
+    :param str log_level:
+        Logging package level to configure via
+        :py:func:`mitogen.utils.log_to_file`.
+
+    :param bool profiling:
+        If :py:data:`True`, equivalent to setting
+        :py:attr:`mitogen.master.Router.profiling` prior to router
+        construction. This causes ``/tmp`` files to be created everywhere at
+        the end of a successful run with :py:mod:`cProfile` output for every
+        thread.
+
+    Example:
+
+    ::
+
+        import mitogen
+        import requests
+
+        def get_url(url):
+            return requests.get(url).text
+
+        @mitogen.main()
+        def main(router):
+            z = router.ssh(hostname='k3')
+            print(z.call(get_url, 'https://example.org/')))))
+
+    """
+
+    def wrapper(func):
+        if func.__module__ != '__main__':
+            return func
+        import mitogen.parent
+        import mitogen.utils
+        if profiling:
+            mitogen.core.enable_profiling()
+            mitogen.master.Router.profiling = profiling
+        utils.log_to_file(level=log_level)
+        return mitogen.core._profile_hook(
+            'app.main',
+            utils.run_with_router,
+            func,
+        )
+    return wrapper