hooks: add HG_NODE_LAST to txnclose and changegroup hook environments
Sometimes a txnclose or changegroup hook wants to iterate through all
the changesets in transaction: in that situation usually the revset
`$HG_NODE:` is used to select the revisions. Unfortunately this revset
sometimes may contain too many changesets because we don't have the
write lock while the hook runs newer changes may be added to
repository in the meantime.
That's why there is a need for extra variable carrying the information about
the last change in the transaction.
$ hg init test
$ cd test
$ cat > .hg/hgrc <<EOF
> [server]
> validate=1
> EOF
$ echo alpha > alpha
$ echo beta > beta
$ hg addr
adding alpha
adding beta
$ hg ci -m 1
$ cd ..
$ hg clone test test-clone
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
Test spurious filelog entries:
$ cd test-clone
$ echo blah >> beta
$ cp .hg/store/data/beta.i tmp1
$ hg ci -m 2
$ cp .hg/store/data/beta.i tmp2
$ hg -q rollback
$ mv tmp2 .hg/store/data/beta.i
$ echo blah >> beta
$ hg ci -m '2 (corrupt)'
Expected to fail:
$ hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
beta@1: dddc47b3ba30 not in manifests
2 files, 2 changesets, 4 total revisions
1 integrity errors encountered!
(first damaged changeset appears to be 1)
[1]
$ hg push
pushing to $TESTTMP/test (glob)
searching for changes
adding changesets
adding manifests
adding file changes
transaction abort!
rollback completed
abort: received spurious file revlog entry
[255]
$ hg -q rollback
$ mv tmp1 .hg/store/data/beta.i
$ echo beta > beta
Test missing filelog entries:
$ cp .hg/store/data/beta.i tmp
$ echo blah >> beta
$ hg ci -m '2 (corrupt)'
$ mv tmp .hg/store/data/beta.i
Expected to fail:
$ hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
beta@1: dddc47b3ba30 in manifests not found
2 files, 2 changesets, 2 total revisions
1 integrity errors encountered!
(first damaged changeset appears to be 1)
[1]
$ hg push
pushing to $TESTTMP/test (glob)
searching for changes
adding changesets
adding manifests
adding file changes
transaction abort!
rollback completed
abort: missing file data for beta:dddc47b3ba30e54484720ce0f4f768a0f4b6efb9 - run hg verify
[255]
$ cd ..