Mercurial > hg
view tests/test-mq-qdelete.t @ 26755:bb0b955d050d
streamclone: support for producing and consuming stream clone bundles
Up to this point, stream clones only existed as a dynamically generated
data format produced and consumed during streaming clones. In order to
support this efficient cloning format with the clone bundles feature, we
need a more formal, on disk representation of the streaming clone data.
This patch introduces a new "bundle" type for streaming clones. Unlike
existing bundles, it does not contain changegroup data. It does,
however, share the same concepts like the 4 byte header which identifies
the type of data that follows and the 2 byte abbreviation for
compression types (of which only "UN" is currently supported).
The new bundle format is essentially the existing stream clone version 1
data format with some headers at the beginning.
Content negotiation at stream clone request time checked for repository
format/requirements compatibility before initiating a stream clone. We
can't do active content negotiation when using clone bundles. So, we put
this set of requirements inside the payload so consumers have a built-in
mechanism for checking compatibility before reading and applying lots of
data. Of course, we will also advertise this requirements set in clone
bundles. But that's for another patch.
We currently don't have a mechanism to produce and consume this new
bundle format. This will be implemented in upcoming patches.
It's worth noting that if a legacy client attempts to `hg unbundle` a
stream clone bundle (with the "HGS1" header), it will abort with:
"unknown bundle version S1," which seems appropriate.
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Sat, 17 Oct 2015 11:14:52 -0700 |
parents | 143b52fce68e |
children | 95c4cca641f6 |
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$ echo "[extensions]" >> $HGRCPATH $ echo "mq=" >> $HGRCPATH $ hg init a $ cd a $ echo 'base' > base $ hg ci -Ambase -d '1 0' adding base $ hg qnew -d '1 0' pa $ hg qnew -d '1 0' pb $ hg qnew -d '1 0' pc $ hg qdel abort: qdelete requires at least one revision or patch name [255] $ hg qdel pc abort: cannot delete applied patch pc [255] $ hg qpop popping pc now at: pb Delete the same patch twice in one command (issue2427) $ hg qdel pc pc $ hg qseries pa pb $ ls .hg/patches pa pb series status $ hg qpop popping pb now at: pa $ hg qdel -k 1 $ ls .hg/patches pa pb series status $ hg qdel -r pa patch pa finalized without changeset message $ hg qapplied $ hg log --template '{rev} {desc}\n' 1 [mq]: pa 0 base $ hg qnew pd $ hg qnew pe $ hg qnew pf $ hg qdel -r pe abort: cannot delete revision 3 above applied patches [255] $ hg qdel -r qbase:pe patch pd finalized without changeset message patch pe finalized without changeset message $ hg qapplied pf $ hg log --template '{rev} {desc}\n' 4 [mq]: pf 3 [mq]: pe 2 [mq]: pd 1 [mq]: pa 0 base $ cd .. $ hg init b $ cd b $ echo 'base' > base $ hg ci -Ambase -d '1 0' adding base $ hg qfinish abort: no revisions specified [255] $ hg qfinish -a no patches applied $ hg qnew -d '1 0' pa $ hg qnew -d '1 0' pb $ hg qnew pc # XXX fails to apply by /usr/bin/patch if we put a date $ hg qfinish 0 abort: revision 0 is not managed [255] $ hg qfinish pb abort: cannot delete revision 2 above applied patches [255] $ hg qpop popping pc now at: pb $ hg qfinish -a pc abort: unknown revision 'pc'! [255] $ hg qpush applying pc patch pc is empty now at: pc $ hg qfinish qbase:pb patch pa finalized without changeset message patch pb finalized without changeset message $ hg qapplied pc $ hg log --template '{rev} {desc}\n' 3 imported patch pc 2 [mq]: pb 1 [mq]: pa 0 base $ hg qfinish -a pc patch pc finalized without changeset message $ hg qapplied $ hg log --template '{rev} {desc}\n' 3 imported patch pc 2 [mq]: pb 1 [mq]: pa 0 base $ ls .hg/patches series status qdel -k X && hg qimp -e X used to trigger spurious output with versioned queues $ hg init --mq $ hg qimport -r 3 $ hg qpop popping imported_patch_pc patch queue now empty $ hg qdel -k imported_patch_pc $ hg qimp -e imported_patch_pc adding imported_patch_pc to series file $ hg qfinish -a no patches applied resilience to inconsistency: qfinish -a with applied patches not in series $ hg qser imported_patch_pc $ hg qapplied $ hg qpush applying imported_patch_pc patch imported_patch_pc is empty now at: imported_patch_pc $ echo next >> base $ hg qrefresh -d '1 0' $ echo > .hg/patches/series # remove 3.diff from series to confuse mq $ hg qfinish -a revision 47dfa8501675 refers to unknown patches: imported_patch_pc more complex state 'both known and unknown patches $ echo hip >> base $ hg qnew -f -d '1 0' -m 4 4.diff $ echo hop >> base $ hg qnew -f -d '1 0' -m 5 5.diff $ echo > .hg/patches/series # remove 4.diff and 5.diff from series to confuse mq $ echo hup >> base $ hg qnew -f -d '1 0' -m 6 6.diff $ echo pup > base $ hg qfinish -a warning: uncommitted changes in the working directory revision 2b1c98802260 refers to unknown patches: 5.diff revision 33a6861311c0 refers to unknown patches: 4.diff $ cd ..