The goal of this patch is to add the IDs of the parents of applied MQ patches
into the patch file headers whenever qnew or qrefresh are run.
This will serve as a reminder of when the patches last applied cleanly and
will let us do more intelligent things in the future, such as:
* Resolve conflicts found when qpushing to a new location by merging
instead of simply showing rejects.
* Display better diffs of versioned MQ patches because we can tell how the
patched files have changed in the meantime.
Here are the new rules this patch introduces. They are checked in this order:
* If a patch currently has old, plain-style patch headers ("From:" and
"Date:") do not change the style or add any new headers.
* If the 'mq.plain' configuration setting is true, only plain-style
headers will be used for all MQ patches.
* qnew will initialize new patches with HG-style headers and fill in the
"# Parent" header with the appropriate parent node.
* qrefresh will refresh the "# Parent" header with the current parent of
the current patch.
When setting the date with qrefresh (-d|-D), and the patch does have
neither a 'Date:' nor a '# Date' header, add the date field as such:
- if the patch has a 'From:' header, add a 'Date:' header
- otherwise, upgrade to Mercurial extended patch format and add '# Date'
When setting the author field with qrefresh (-u|-U), and the patch does have
neither a 'From:' nor a '# User' header, add the author name as such:
- if the patch has a 'Date:' header, add a 'From:' header
- otherwise, upgrade to Mercurial extended patch format and add # From
When navigating through a patch series by qpushing and qpopping it was easy to
get lost because qpop was silent. I found myself often running qnext after qpop
to see which patch I just dropped - especially if I was about to qrm it. This
patch makes qpop more symmetric to qpush by showing which patches are
applied/"unapplied".
I think it is a good change even though it changes output by adding a new line
of output.
This extension produces quite a lot of informational messages during
its normal operation and it is hard to say which strings can be
changed and which cannot.
These options make qnew add and qrefresh update a "# Date "-style
header line. This allows proper recording of creation / last
modification dates of patches in patch queues.
Note that `qrefresh -D` only updates existing header lines. It never
adds them, and does not warn about this. This is because I expect
people to have `[default] qrefresh -D` in their .hgrc so patches with
tracked dates get updated, others are left unchanged. The suggested
setup in .hgrc is, in fact,
[default]
qnew = -D -U
qrefresh = -D
I tried to not mix header styles, so `qnew -D -U` now writes the user in
"# User "-style, while `qnew -U` still writes it "From: "-style. Also, if
`qrefresh -U` must add the user, it does so in "# User "-style if the
header contains a "# HG changeset patch" line. (This is caused by mq
not supporting the "Date: "-style header line at all - a reasonable choice
given its standard date format.)
