test-pathencode: randomize length of each path component
This makes it possible for long and short components to exist in the same path.
This also makes shorter path components more likely. For
randint(1, randint(1, n)), the likelihood that one sees a number k
(1 <= k <= n) is 1/n * (\sum_{k=i}^n 1/i). This decreases with k, much like in
the real world where shorter paths are more common than longer ones.
The previous fix and this one together cause
issue3958 to be detected by this
test with reasonable frequency. When this test was run 100 times in a loop, the
issue was detected 30 of those times.
$ "$TESTDIR/hghave" unix-permissions || exit 80
$ echo "[extensions]" >> $HGRCPATH
$ echo "mq=">> $HGRCPATH
$ teststrip() {
> hg -q up -C $1
> echo % before update $1, strip $2
> hg parents
> chmod -$3 $4
> hg strip $2 2>&1 | sed 's/\(bundle\).*/\1/' | sed 's/Permission denied.*\.hg\/store\/\(.*\)/Permission denied \.hg\/store\/\1/'
> echo % after update $1, strip $2
> chmod +$3 $4
> hg verify
> echo % journal contents
> if [ -f .hg/store/journal ]; then
> sed -e 's/\.i[^\n]*/\.i/' .hg/store/journal
> else
> echo "(no journal)"
> fi
> ls .hg/store/journal >/dev/null 2>&1 && hg recover
> ls .hg/strip-backup/* >/dev/null 2>&1 && hg unbundle -q .hg/strip-backup/*
> rm -rf .hg/strip-backup
> }
$ hg init test
$ cd test
$ echo a > a
$ hg -q ci -m "a" -A
$ echo b > b
$ hg -q ci -m "b" -A
$ echo b2 >> b
$ hg -q ci -m "b2" -A
$ echo c > c
$ hg -q ci -m "c" -A
$ teststrip 0 2 w .hg/store/data/b.i
% before update 0, strip 2
changeset: 0:cb9a9f314b8b
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: a
saved backup bundle
transaction abort!
failed to truncate data/b.i
rollback failed - please run hg recover
strip failed, full bundle
abort: Permission denied .hg/store/data/b.i
% after update 0, strip 2
abandoned transaction found - run hg recover
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
b@?: rev 1 points to nonexistent changeset 2
(expected 1)
b@?: 736c29771fba not in manifests
warning: orphan revlog 'data/c.i'
2 files, 2 changesets, 3 total revisions
2 warnings encountered!
2 integrity errors encountered!
% journal contents
00changelog.i
00manifest.i
data/b.i
data/c.i
rolling back interrupted transaction
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
2 files, 2 changesets, 2 total revisions
$ teststrip 0 2 r .hg/store/data/b.i
% before update 0, strip 2
changeset: 0:cb9a9f314b8b
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: a
abort: Permission denied .hg/store/data/b.i
% after update 0, strip 2
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
3 files, 4 changesets, 4 total revisions
% journal contents
(no journal)
$ teststrip 0 2 w .hg/store/00manifest.i
% before update 0, strip 2
changeset: 0:cb9a9f314b8b
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: a
saved backup bundle
transaction abort!
failed to truncate 00manifest.i
rollback failed - please run hg recover
strip failed, full bundle
abort: Permission denied .hg/store/00manifest.i
% after update 0, strip 2
abandoned transaction found - run hg recover
checking changesets
checking manifests
manifest@?: rev 2 points to nonexistent changeset 2
manifest@?: 3362547cdf64 not in changesets
manifest@?: rev 3 points to nonexistent changeset 3
manifest@?: 265a85892ecb not in changesets
crosschecking files in changesets and manifests
c@3: in manifest but not in changeset
checking files
b@?: rev 1 points to nonexistent changeset 2
(expected 1)
c@?: rev 0 points to nonexistent changeset 3
3 files, 2 changesets, 4 total revisions
1 warnings encountered!
7 integrity errors encountered!
(first damaged changeset appears to be 3)
% journal contents
00changelog.i
00manifest.i
data/b.i
data/c.i
rolling back interrupted transaction
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
2 files, 2 changesets, 2 total revisions
$ cd ..