merge(third_party/git): Merge squashed git subtree at v2.23.0

Merge commit '1b593e1ea4' as 'third_party/git'

third_party/git/contrib/hooks/multimail/post-receive.example

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+#! /usr/bin/env python
+
+"""Example post-receive hook based on git-multimail.
+
+The simplest way to use git-multimail is to use the script
+git_multimail.py directly as a post-receive hook, and to configure it
+using Git's configuration files and command-line parameters.  You can
+also write your own Python wrapper for more advanced configurability,
+using git_multimail.py as a Python module.
+
+This script is a simple example of such a post-receive hook.  It is
+intended to be customized before use; see the comments in the script
+to help you get started.
+
+Using git-multimail as a Python module as done here provides more
+flexibility.  It has the following advantages:
+
+* The tool's behavior can be customized using arbitrary Python code,
+  without having to edit git_multimail.py.
+
+* Configuration settings can be read from other sources; for example,
+  user names and email addresses could be read from LDAP or from a
+  database.  Or the settings can even be hardcoded in the importing
+  Python script, if this is preferred.
+
+This script is a very basic example of how to use git_multimail.py as
+a module.  The comments below explain some of the points at which the
+script's behavior could be changed or customized.
+
+"""
+
+import sys
+
+# If necessary, add the path to the directory containing
+# git_multimail.py to the Python path as follows.  (This is not
+# necessary if git_multimail.py is in the same directory as this
+# script):
+
+#LIBDIR = 'path/to/directory/containing/module'
+#sys.path.insert(0, LIBDIR)
+
+import git_multimail
+
+# It is possible to modify the output templates here; e.g.:
+
+#git_multimail.FOOTER_TEMPLATE = """\
+#
+#-- \n\
+#This email was generated by the wonderful git-multimail tool.
+#"""
+
+
+# Specify which "git config" section contains the configuration for
+# git-multimail:
+config = git_multimail.Config('multimailhook')
+
+# Set some Git configuration variables. Equivalent to passing var=val
+# to "git -c var=val" each time git is called, or to adding the
+# configuration in .git/config (must come before instanciating the
+# environment) :
+#git_multimail.Config.add_config_parameters('multimailhook.commitEmailFormat=html')
+#git_multimail.Config.add_config_parameters(('user.name=foo', 'user.email=foo@example.com'))
+
+# Select the type of environment:
+try:
+    environment = git_multimail.GenericEnvironment(config=config)
+    #environment = git_multimail.GitoliteEnvironment(config=config)
+except git_multimail.ConfigurationException:
+    sys.stderr.write('*** %s\n' % sys.exc_info()[1])
+    sys.exit(1)
+
+
+# Choose the method of sending emails based on the git config:
+mailer = git_multimail.choose_mailer(config, environment)
+
+# Alternatively, you may hardcode the mailer using code like one of
+# the following:
+
+# Use "/usr/sbin/sendmail -oi -t" to send emails.  The envelopesender
+# argument is optional:
+#mailer = git_multimail.SendMailer(
+#    command=['/usr/sbin/sendmail', '-oi', '-t'],
+#    envelopesender='git-repo@example.com',
+#    )
+
+# Use Python's smtplib to send emails.  Both arguments are required.
+#mailer = git_multimail.SMTPMailer(
+#    environment=environment,
+#    envelopesender='git-repo@example.com',
+#    # The smtpserver argument can also include a port number; e.g.,
+#    #     smtpserver='mail.example.com:25'
+#    smtpserver='mail.example.com',
+#    )
+
+# OutputMailer is intended only for testing; it writes the emails to
+# the specified file stream.
+#mailer = git_multimail.OutputMailer(sys.stdout)
+
+
+# Read changes from stdin and send notification emails:
+git_multimail.run_as_post_receive_hook(environment, mailer)