Create a new send() method on OutputBase to wrap up the construction
of messages, with a long-format and a short-format fallback.
* tools/hook-scripts/mailer/mailer.py:
(OutputBase.send): new method to pull together the start/finish on
SELF, and use of the WRITER. This incorporates the new
MessageTooLarge exception to fall back to a shorter message
generation function.
(Commit.generate): move message generation into a new long_commit()
local function, and use .send() to build/send a message. Switch to
using FAILED rather than RET.
(PropChange.generate): similar to above, with long_propchange()
(Lock.generate): similar to above, with long_lock()
(class MessageTooLarge): new exception for when a generated message
becomes too large, and a fallback to a short message is needed.
This is caught in OutputBase.send(), but not (yet) raised.
git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1914899 13f79535-47bb-0310-9956-ffa450edef68
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