From: David Bremner <bremner@debian.org>
Date: Thu, 14 Jun 2012 22:08:42 +0000 (+0300)
Subject: notmuch-dump: add --format=(batch-tag|sup)
X-Git-Tag: 0.15_rc1~114
X-Git-Url: https://git.notmuchmail.org/git?p=notmuch;a=commitdiff_plain;h=bfe66da4321ce63b6fb3693eddf809e2e0532888;hp=bfe66da4321ce63b6fb3693eddf809e2e0532888

notmuch-dump: add --format=(batch-tag|sup)

sup is the old format, and remains the default, at least until
restore is converted to parse this format.

Each line of the batch-tag format is modelled on the syntax of notmuch tag:
- "notmuch tag" is omitted from the front of the line
- The dump format only uses query strings of a single message-id.
- Each space seperated tag/message-id is 'hex-encoded' to remove
  trouble-making characters.
- It is permitted (and will be useful) for there to be no tags before
  the query.

In particular this format won't have the same problem with e.g. spaces
in message-ids or tags; they will be round-trip-able.
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