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Customizing the content and formatting of emails
================================================
Overloading template strings
----------------------------
The content of emails is generated based on template strings defined
in ``git_multimail.py``. You can customize these template strings
without changing the script itself, by defining a Python wrapper
around it. The python wrapper should ``import git_multimail`` and then
override the ``git_multimail.*`` strings like this::
import sys # needed for sys.argv
# Import and customize git_multimail:
import git_multimail
git_multimail.REVISION_INTRO_TEMPLATE = """..."""
git_multimail.COMBINED_INTRO_TEMPLATE = git_multimail.REVISION_INTRO_TEMPLATE
# start git_multimail itself:
git_multimail.main(sys.argv[1:])
The template strings can use any value already used in the existing
templates (read the source code).
Using HTML in template strings
------------------------------
If ``multimailhook.commitEmailFormat`` is set to HTML, then
git-multimail will generate HTML emails for commit notifications. The
log and diff will be formatted automatically by git-multimail. By
default, any HTML special character in the templates will be escaped.
To use HTML formatting in the introduction of the email, set
``multimailhook.htmlInIntro`` to ``true``. Then, the template can
contain any HTML tags, that will be sent as-is in the email. For
example, to add some formatting and a link to the online commit, use
a format like::
git_multimail.REVISION_INTRO_TEMPLATE = """\
<span style="color:#808080">This is an automated email from the git hooks/post-receive script.</span><br /><br />
<strong>%(pusher)s</strong> pushed a commit to %(refname_type)s %(short_refname)s
in repository %(repo_shortname)s.<br />
<a href="https://github.com/git-multimail/git-multimail/commit/%(newrev)s">View on GitHub</a>.
"""
Note that the values expanded from ``%(variable)s`` in the format
strings will still be escaped.
For a less flexible but easier to set up way to add a link to commit
emails, see ``multimailhook.commitBrowseURL``.
Similarly, one can set ``multimailhook.htmlInFooter`` and override any
of the ``*_FOOTER*`` template strings.
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