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view tests/test-merge-force.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 | 8e6d5b7317e6 |
children | 8dff49c34a67 |
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Set up a base, local, and remote changeset, as well as the working copy state. Files names are of the form base_remote_local_working-copy. For example, content1_content2_content1_content2-untracked represents a file that was modified in the remote changeset, left untouched in the local changeset, and then modified in the working copy to match the remote content, then finally forgotten. $ hg init Create base changeset $ python $TESTDIR/generate-working-copy-states.py state 3 1 $ hg addremove -q --similarity 0 $ hg commit -qm 'base' Create remote changeset $ python $TESTDIR/generate-working-copy-states.py state 3 2 $ hg addremove -q --similarity 0 $ hg commit -qm 'remote' Create local changeset $ hg update -q 0 $ python $TESTDIR/generate-working-copy-states.py state 3 3 $ hg addremove -q --similarity 0 $ hg commit -qm 'local' Set up working directory $ python $TESTDIR/generate-working-copy-states.py state 3 wc $ hg addremove -q --similarity 0 $ hg forget *_*_*_*-untracked $ rm *_*_*_missing-* $ hg status -A M content1_content1_content1_content4-tracked M content1_content1_content3_content1-tracked M content1_content1_content3_content4-tracked M content1_content2_content1_content2-tracked M content1_content2_content1_content4-tracked M content1_content2_content2_content1-tracked M content1_content2_content2_content4-tracked M content1_content2_content3_content1-tracked M content1_content2_content3_content2-tracked M content1_content2_content3_content4-tracked M content1_missing_content1_content4-tracked M content1_missing_content3_content1-tracked M content1_missing_content3_content4-tracked M missing_content2_content2_content4-tracked M missing_content2_content3_content2-tracked M missing_content2_content3_content4-tracked M missing_missing_content3_content4-tracked A content1_content1_missing_content1-tracked A content1_content1_missing_content4-tracked A content1_content2_missing_content1-tracked A content1_content2_missing_content2-tracked A content1_content2_missing_content4-tracked A content1_missing_missing_content1-tracked A content1_missing_missing_content4-tracked A missing_content2_missing_content2-tracked A missing_content2_missing_content4-tracked A missing_missing_missing_content4-tracked R content1_content1_content1_content1-untracked R content1_content1_content1_content4-untracked R content1_content1_content1_missing-untracked R content1_content1_content3_content1-untracked R content1_content1_content3_content3-untracked R content1_content1_content3_content4-untracked R content1_content1_content3_missing-untracked R content1_content2_content1_content1-untracked R content1_content2_content1_content2-untracked R content1_content2_content1_content4-untracked R content1_content2_content1_missing-untracked R content1_content2_content2_content1-untracked R content1_content2_content2_content2-untracked R content1_content2_content2_content4-untracked R content1_content2_content2_missing-untracked R content1_content2_content3_content1-untracked R content1_content2_content3_content2-untracked R content1_content2_content3_content3-untracked R content1_content2_content3_content4-untracked R content1_content2_content3_missing-untracked R content1_missing_content1_content1-untracked R content1_missing_content1_content4-untracked R content1_missing_content1_missing-untracked R content1_missing_content3_content1-untracked R content1_missing_content3_content3-untracked R content1_missing_content3_content4-untracked R content1_missing_content3_missing-untracked R missing_content2_content2_content2-untracked R missing_content2_content2_content4-untracked R missing_content2_content2_missing-untracked R missing_content2_content3_content2-untracked R missing_content2_content3_content3-untracked R missing_content2_content3_content4-untracked R missing_content2_content3_missing-untracked R missing_missing_content3_content3-untracked R missing_missing_content3_content4-untracked R missing_missing_content3_missing-untracked ! content1_content1_content1_missing-tracked ! content1_content1_content3_missing-tracked ! content1_content1_missing_missing-tracked ! content1_content2_content1_missing-tracked ! content1_content2_content2_missing-tracked ! content1_content2_content3_missing-tracked ! content1_content2_missing_missing-tracked ! content1_missing_content1_missing-tracked ! content1_missing_content3_missing-tracked ! content1_missing_missing_missing-tracked ! missing_content2_content2_missing-tracked ! missing_content2_content3_missing-tracked ! missing_content2_missing_missing-tracked ! missing_missing_content3_missing-tracked ! missing_missing_missing_missing-tracked ? content1_content1_missing_content1-untracked ? content1_content1_missing_content4-untracked ? content1_content2_missing_content1-untracked ? content1_content2_missing_content2-untracked ? content1_content2_missing_content4-untracked ? content1_missing_missing_content1-untracked ? content1_missing_missing_content4-untracked ? missing_content2_missing_content2-untracked ? missing_content2_missing_content4-untracked ? missing_missing_missing_content4-untracked C content1_content1_content1_content1-tracked C content1_content1_content3_content3-tracked C content1_content2_content1_content1-tracked C content1_content2_content2_content2-tracked C content1_content2_content3_content3-tracked C content1_missing_content1_content1-tracked C content1_missing_content3_content3-tracked C missing_content2_content2_content2-tracked C missing_content2_content3_content3-tracked C missing_missing_content3_content3-tracked Merge with remote # Notes: # - local and remote changed content1_content2_*_content2-untracked # in the same way, so it could potentially be left alone $ hg merge -f --tool internal:merge3 'desc("remote")' local changed content1_missing_content1_content4-tracked which remote deleted use (c)hanged version or (d)elete? c local changed content1_missing_content3_content3-tracked which remote deleted use (c)hanged version or (d)elete? c local changed content1_missing_content3_content4-tracked which remote deleted use (c)hanged version or (d)elete? c local changed content1_missing_missing_content4-tracked which remote deleted use (c)hanged version or (d)elete? c remote changed content1_content2_content1_content1-untracked which local deleted use (c)hanged version or leave (d)eleted? c remote changed content1_content2_content1_content2-untracked which local deleted use (c)hanged version or leave (d)eleted? c remote changed content1_content2_content1_content4-untracked which local deleted use (c)hanged version or leave (d)eleted? c remote changed content1_content2_content1_missing-tracked which local deleted use (c)hanged version or leave (d)eleted? c remote changed content1_content2_content1_missing-untracked which local deleted use (c)hanged version or leave (d)eleted? c remote changed content1_content2_content2_content1-untracked which local deleted use (c)hanged version or leave (d)eleted? c remote changed content1_content2_content2_content2-untracked which local deleted use (c)hanged version or leave (d)eleted? c remote changed content1_content2_content2_content4-untracked which local deleted use (c)hanged version or leave (d)eleted? c remote changed content1_content2_content2_missing-tracked which local deleted use (c)hanged version or leave (d)eleted? c remote changed content1_content2_content2_missing-untracked which local deleted use (c)hanged version or leave (d)eleted? c remote changed content1_content2_content3_content1-untracked which local deleted use (c)hanged version or leave (d)eleted? c remote changed content1_content2_content3_content2-untracked which local deleted use (c)hanged version or leave (d)eleted? c remote changed content1_content2_content3_content3-untracked which local deleted use (c)hanged version or leave (d)eleted? c remote changed content1_content2_content3_content4-untracked which local deleted use (c)hanged version or leave (d)eleted? c remote changed content1_content2_content3_missing-tracked which local deleted use (c)hanged version or leave (d)eleted? c remote changed content1_content2_content3_missing-untracked which local deleted use (c)hanged version or leave (d)eleted? c remote changed content1_content2_missing_content1-untracked which local deleted use (c)hanged version or leave (d)eleted? c remote changed content1_content2_missing_content2-untracked which local deleted use (c)hanged version or leave (d)eleted? c remote changed content1_content2_missing_content4-untracked which local deleted use (c)hanged version or leave (d)eleted? c remote changed content1_content2_missing_missing-tracked which local deleted use (c)hanged version or leave (d)eleted? c remote changed content1_content2_missing_missing-untracked which local deleted use (c)hanged version or leave (d)eleted? c merging content1_content2_content1_content4-tracked merging content1_content2_content2_content1-tracked merging content1_content2_content2_content4-tracked merging content1_content2_content3_content1-tracked merging content1_content2_content3_content3-tracked merging content1_content2_content3_content4-tracked merging content1_content2_missing_content1-tracked merging content1_content2_missing_content4-tracked merging missing_content2_content2_content4-tracked merging missing_content2_content3_content3-tracked merging missing_content2_content3_content4-tracked merging missing_content2_missing_content4-tracked merging missing_content2_missing_content4-untracked warning: conflicts while merging content1_content2_content1_content4-tracked! (edit, then use 'hg resolve --mark') warning: conflicts while merging content1_content2_content2_content4-tracked! (edit, then use 'hg resolve --mark') warning: conflicts while merging content1_content2_content3_content3-tracked! (edit, then use 'hg resolve --mark') warning: conflicts while merging content1_content2_content3_content4-tracked! (edit, then use 'hg resolve --mark') warning: conflicts while merging content1_content2_missing_content4-tracked! (edit, then use 'hg resolve --mark') warning: conflicts while merging missing_content2_content2_content4-tracked! (edit, then use 'hg resolve --mark') warning: conflicts while merging missing_content2_content3_content3-tracked! (edit, then use 'hg resolve --mark') warning: conflicts while merging missing_content2_content3_content4-tracked! (edit, then use 'hg resolve --mark') warning: conflicts while merging missing_content2_missing_content4-tracked! (edit, then use 'hg resolve --mark') warning: conflicts while merging missing_content2_missing_content4-untracked! (edit, then use 'hg resolve --mark') 39 files updated, 3 files merged, 8 files removed, 10 files unresolved use 'hg resolve' to retry unresolved file merges or 'hg update -C .' to abandon [1] Check which files need to be resolved (should correspond to the output above). This should be the files for which the base (1st filename segment), the remote (2nd segment) and the working copy (4th segment) are all different. Interestingly, one untracked file got merged and added, which corresponds to the odd 'if force and branchmerge and different' case in manifestmerge(). $ hg resolve -l U content1_content2_content1_content4-tracked R content1_content2_content2_content1-tracked U content1_content2_content2_content4-tracked R content1_content2_content3_content1-tracked U content1_content2_content3_content3-tracked U content1_content2_content3_content4-tracked R content1_content2_missing_content1-tracked U content1_content2_missing_content4-tracked U missing_content2_content2_content4-tracked U missing_content2_content3_content3-tracked U missing_content2_content3_content4-tracked U missing_content2_missing_content4-tracked U missing_content2_missing_content4-untracked Check status and file content Some files get added (e.g. content1_content2_content1_content1-untracked) It is not intuitive that content1_content2_content1_content4-tracked gets merged while content1_content2_content1_content4-untracked gets overwritten. Any *_content2_*-untracked triggers the modified/deleted prompt and then gets overwritten. A lot of untracked files become tracked, for example content1_content2_content2_content2-untracked. *_missing_missing_missing-tracked is reported as removed ('R'), which doesn't make sense since the file did not exist in the parent, but on the other hand, merged-in additions are reported as modifications, which is almost as strange. missing_missing_content3_missing-tracked becomes removed ('R'), even though the remote side did not touch the file $ for f in `python $TESTDIR/generate-working-copy-states.py filelist 3` > do > echo > hg status -A $f > if test -f $f > then > cat $f > else > echo '<missing>' > fi > if test -f ${f}.orig > then > echo ${f}.orig: > cat ${f}.orig > fi > done C content1_content1_content1_content1-tracked content1 R content1_content1_content1_content1-untracked content1 M content1_content1_content1_content4-tracked content4 R content1_content1_content1_content4-untracked content4 ! content1_content1_content1_missing-tracked <missing> R content1_content1_content1_missing-untracked <missing> M content1_content1_content3_content1-tracked content1 R content1_content1_content3_content1-untracked content1 C content1_content1_content3_content3-tracked content3 R content1_content1_content3_content3-untracked content3 M content1_content1_content3_content4-tracked content4 R content1_content1_content3_content4-untracked content4 ! content1_content1_content3_missing-tracked <missing> R content1_content1_content3_missing-untracked <missing> A content1_content1_missing_content1-tracked content1 ? content1_content1_missing_content1-untracked content1 A content1_content1_missing_content4-tracked content4 ? content1_content1_missing_content4-untracked content4 ! content1_content1_missing_missing-tracked <missing> content1_content1_missing_missing-untracked: * (glob) <missing> M content1_content2_content1_content1-tracked content2 M content1_content2_content1_content1-untracked content2 M content1_content2_content1_content2-tracked content2 M content1_content2_content1_content2-untracked content2 M content1_content2_content1_content4-tracked <<<<<<< local: 0447570f1af6 - test: local content4 ||||||| base content1 ======= content2 >>>>>>> other: 85100b8c675b - test: remote content1_content2_content1_content4-tracked.orig: content4 M content1_content2_content1_content4-untracked content2 M content1_content2_content1_missing-tracked content2 M content1_content2_content1_missing-untracked content2 M content1_content2_content2_content1-tracked content2 M content1_content2_content2_content1-untracked content2 C content1_content2_content2_content2-tracked content2 M content1_content2_content2_content2-untracked content2 M content1_content2_content2_content4-tracked <<<<<<< local: 0447570f1af6 - test: local content4 ||||||| base content1 ======= content2 >>>>>>> other: 85100b8c675b - test: remote content1_content2_content2_content4-tracked.orig: content4 M content1_content2_content2_content4-untracked content2 M content1_content2_content2_missing-tracked content2 M content1_content2_content2_missing-untracked content2 M content1_content2_content3_content1-tracked content2 M content1_content2_content3_content1-untracked content2 M content1_content2_content3_content2-tracked content2 M content1_content2_content3_content2-untracked content2 M content1_content2_content3_content3-tracked <<<<<<< local: 0447570f1af6 - test: local content3 ||||||| base content1 ======= content2 >>>>>>> other: 85100b8c675b - test: remote content1_content2_content3_content3-tracked.orig: content3 M content1_content2_content3_content3-untracked content2 M content1_content2_content3_content4-tracked <<<<<<< local: 0447570f1af6 - test: local content4 ||||||| base content1 ======= content2 >>>>>>> other: 85100b8c675b - test: remote content1_content2_content3_content4-tracked.orig: content4 M content1_content2_content3_content4-untracked content2 M content1_content2_content3_missing-tracked content2 M content1_content2_content3_missing-untracked content2 M content1_content2_missing_content1-tracked content2 M content1_content2_missing_content1-untracked content2 M content1_content2_missing_content2-tracked content2 M content1_content2_missing_content2-untracked content2 M content1_content2_missing_content4-tracked <<<<<<< local: 0447570f1af6 - test: local content4 ||||||| base content1 ======= content2 >>>>>>> other: 85100b8c675b - test: remote content1_content2_missing_content4-tracked.orig: content4 M content1_content2_missing_content4-untracked content2 M content1_content2_missing_missing-tracked content2 M content1_content2_missing_missing-untracked content2 R content1_missing_content1_content1-tracked <missing> R content1_missing_content1_content1-untracked content1 M content1_missing_content1_content4-tracked content4 R content1_missing_content1_content4-untracked content4 R content1_missing_content1_missing-tracked <missing> R content1_missing_content1_missing-untracked <missing> R content1_missing_content3_content1-tracked <missing> R content1_missing_content3_content1-untracked content1 C content1_missing_content3_content3-tracked content3 R content1_missing_content3_content3-untracked content3 M content1_missing_content3_content4-tracked content4 R content1_missing_content3_content4-untracked content4 R content1_missing_content3_missing-tracked <missing> R content1_missing_content3_missing-untracked <missing> R content1_missing_missing_content1-tracked <missing> ? content1_missing_missing_content1-untracked content1 A content1_missing_missing_content4-tracked content4 ? content1_missing_missing_content4-untracked content4 R content1_missing_missing_missing-tracked <missing> content1_missing_missing_missing-untracked: * (glob) <missing> C missing_content2_content2_content2-tracked content2 M missing_content2_content2_content2-untracked content2 M missing_content2_content2_content4-tracked <<<<<<< local: 0447570f1af6 - test: local content4 ||||||| base ======= content2 >>>>>>> other: 85100b8c675b - test: remote missing_content2_content2_content4-tracked.orig: content4 M missing_content2_content2_content4-untracked content2 M missing_content2_content2_missing-tracked content2 M missing_content2_content2_missing-untracked content2 M missing_content2_content3_content2-tracked content2 M missing_content2_content3_content2-untracked content2 M missing_content2_content3_content3-tracked <<<<<<< local: 0447570f1af6 - test: local content3 ||||||| base ======= content2 >>>>>>> other: 85100b8c675b - test: remote missing_content2_content3_content3-tracked.orig: content3 M missing_content2_content3_content3-untracked content2 M missing_content2_content3_content4-tracked <<<<<<< local: 0447570f1af6 - test: local content4 ||||||| base ======= content2 >>>>>>> other: 85100b8c675b - test: remote missing_content2_content3_content4-tracked.orig: content4 M missing_content2_content3_content4-untracked content2 M missing_content2_content3_missing-tracked content2 M missing_content2_content3_missing-untracked content2 M missing_content2_missing_content2-tracked content2 M missing_content2_missing_content2-untracked content2 M missing_content2_missing_content4-tracked <<<<<<< local: 0447570f1af6 - test: local content4 ||||||| base ======= content2 >>>>>>> other: 85100b8c675b - test: remote missing_content2_missing_content4-tracked.orig: content4 M missing_content2_missing_content4-untracked <<<<<<< local: 0447570f1af6 - test: local content4 ||||||| base ======= content2 >>>>>>> other: 85100b8c675b - test: remote missing_content2_missing_content4-untracked.orig: content4 M missing_content2_missing_missing-tracked content2 M missing_content2_missing_missing-untracked content2 C missing_missing_content3_content3-tracked content3 R missing_missing_content3_content3-untracked content3 M missing_missing_content3_content4-tracked content4 R missing_missing_content3_content4-untracked content4 R missing_missing_content3_missing-tracked <missing> R missing_missing_content3_missing-untracked <missing> A missing_missing_missing_content4-tracked content4 ? missing_missing_missing_content4-untracked content4 R missing_missing_missing_missing-tracked <missing> missing_missing_missing_missing-untracked: * (glob) <missing>