Mercurial > hg
view tests/test-lfs-bundle.t @ 42050:03f6480bfdda
unshelve: disable unshelve during merge (issue5123)
As stated in the issue5123, unshelve can destroy the second parent of
the context when tried to unshelve with an uncommitted merge. This
patch makes unshelve to abort when called with an uncommitted merge.
See how shelve.mergefiles works. Commit structure looks like this:
```
... -> pctx -> tmpwctx -> shelvectx
/
/
second
merge parent
pctx = parent before merging working context(first merge parent)
tmpwctx = commited working directory after merge(with two parents)
shelvectx = shelved context
```
shelve.mergefiles first updates to pctx then it reverts shelvectx to pctx with:
```
cmdutil.revert(ui, repo, shelvectx, repo.dirstate.parents(),
*pathtofiles(repo, files),
**{'no_backup': True})
```
Reverting tmpwctx files that were merged from second parent to pctx makes them
added because they are not in pctx.
Changing this revert operation is crucial to restore parents after unshelve.
This is a complicated issue as this is not fixing a regression. Thus, for the
time being, unshelve during an uncommitted merge can be aborted.
(Details taken from http://mercurial.808500.n3.nabble.com/PATCH-V3-shelve-restore-parents-after-unshelve-issue5123-tt4036858.html#a4037408)
Differential Revision: https://phab.mercurial-scm.org/D6169
author | Navaneeth Suresh <navaneeths1998@gmail.com> |
---|---|
date | Mon, 25 Mar 2019 12:33:41 +0530 |
parents | 556984ae0005 |
children | ca82929e433d |
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In this test, we want to test LFS bundle application on both LFS and non-LFS repos. To make it more interesting, the file revisions will contain hg filelog metadata ('\1\n'). The bundle will have 1 file revision overlapping with the destination repo. # rev 1 2 3 # repo: yes yes no # bundle: no (base) yes yes (deltabase: 2 if possible) It is interesting because rev 2 could have been stored as LFS in the repo, and non-LFS in the bundle; or vice-versa. Init $ cat >> $HGRCPATH << EOF > [extensions] > lfs= > drawdag=$TESTDIR/drawdag.py > [lfs] > url=file:$TESTTMP/lfs-remote > EOF Helper functions $ commitxy() { > hg debugdrawdag "$@" <<'EOS' > Y # Y/X=\1\nAAAA\nE\nF > | # Y/Y=\1\nAAAA\nG\nH > X # X/X=\1\nAAAA\nC\n > # X/Y=\1\nAAAA\nD\n > EOS > } $ commitz() { > hg debugdrawdag "$@" <<'EOS' > Z # Z/X=\1\nAAAA\nI\n > | # Z/Y=\1\nAAAA\nJ\n > | # Z/Z=\1\nZ > Y > EOS > } $ enablelfs() { > cat >> .hg/hgrc <<EOF > [lfs] > track=all() > EOF > } Generate bundles $ for i in normal lfs; do > NAME=src-$i > hg init $TESTTMP/$NAME > cd $TESTTMP/$NAME > [ $i = lfs ] && enablelfs > commitxy > commitz > hg bundle -q --base X -r Y+Z $TESTTMP/$NAME.bundle > SRCNAMES="$SRCNAMES $NAME" > done Prepare destination repos $ for i in normal lfs; do > NAME=dst-$i > hg init $TESTTMP/$NAME > cd $TESTTMP/$NAME > [ $i = lfs ] && enablelfs > commitxy > DSTNAMES="$DSTNAMES $NAME" > done Apply bundles $ for i in $SRCNAMES; do > for j in $DSTNAMES; do > echo ---- Applying $i.bundle to $j ---- > cp -R $TESTTMP/$j $TESTTMP/tmp-$i-$j > cd $TESTTMP/tmp-$i-$j > if hg unbundle $TESTTMP/$i.bundle -q 2>/dev/null; then > hg verify -q && echo OK > else > echo CRASHED > fi > done > done ---- Applying src-normal.bundle to dst-normal ---- OK ---- Applying src-normal.bundle to dst-lfs ---- OK ---- Applying src-lfs.bundle to dst-normal ---- OK ---- Applying src-lfs.bundle to dst-lfs ---- OK