exchangev2: use filesdata
filesdata is a more efficient mechanism for bulk fetching files data for a
range of changesets. Let's use it in exchangev2.
With this change, a client performing a full clone of mozilla-unified
transmits substantially fewer bytes across the wire:
before: 139,124,863 bytes sent
after: 20,522,499 bytes sent
The bulk of the remaining bytes is likely the transfer of ~1M nodes for
changesets and manifests. We can eliminate this by making requests in
terms of node ranges instead of explicit node lists...
Differential Revision: https://phab.mercurial-scm.org/D4982
Setting up test
$ hg init test
$ cd test
$ echo 0 > afile
$ hg add afile
$ hg commit -m "0.0"
$ echo 1 >> afile
$ hg commit -m "0.1"
$ echo 2 >> afile
$ hg commit -m "0.2"
$ echo 3 >> afile
$ hg commit -m "0.3"
$ hg update -C 0
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo 1 >> afile
$ hg commit -m "1.1"
created new head
$ echo 2 >> afile
$ hg commit -m "1.2"
$ echo "a line" > fred
$ echo 3 >> afile
$ hg add fred
$ hg commit -m "1.3"
$ hg mv afile adifferentfile
$ hg commit -m "1.3m"
$ hg update -C 3
1 files updated, 0 files merged, 2 files removed, 0 files unresolved
$ hg mv afile anotherfile
$ hg commit -m "0.3m"
$ hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
checked 9 changesets with 7 changes to 4 files
$ cd ..
$ hg init empty
Bundle and phase
$ hg -R test phase --force --secret 0
$ hg -R test bundle phase.hg empty
searching for changes
no changes found (ignored 9 secret changesets)
[1]
$ hg -R test phase --draft -r 'head()'
Bundle --all
$ hg -R test bundle --all all.hg
9 changesets found
Bundle test to full.hg
$ hg -R test bundle full.hg empty
searching for changes
9 changesets found
Unbundle full.hg in test
$ hg -R test unbundle full.hg
adding changesets
adding manifests
adding file changes
added 0 changesets with 0 changes to 4 files
(run 'hg update' to get a working copy)
Verify empty
$ hg -R empty heads
[1]
$ hg -R empty verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
checked 0 changesets with 0 changes to 0 files
#if repobundlerepo
Pull full.hg into test (using --cwd)
$ hg --cwd test pull ../full.hg
pulling from ../full.hg
searching for changes
no changes found
Verify that there are no leaked temporary files after pull (issue2797)
$ ls test/.hg | grep .hg10un
[1]
Pull full.hg into empty (using --cwd)
$ hg --cwd empty pull ../full.hg
pulling from ../full.hg
requesting all changes
adding changesets
adding manifests
adding file changes
added 9 changesets with 7 changes to 4 files (+1 heads)
new changesets f9ee2f85a263:aa35859c02ea (9 drafts)
(run 'hg heads' to see heads, 'hg merge' to merge)
Rollback empty
$ hg -R empty rollback
repository tip rolled back to revision -1 (undo pull)
Pull full.hg into empty again (using --cwd)
$ hg --cwd empty pull ../full.hg
pulling from ../full.hg
requesting all changes
adding changesets
adding manifests
adding file changes
added 9 changesets with 7 changes to 4 files (+1 heads)
new changesets f9ee2f85a263:aa35859c02ea (9 drafts)
(run 'hg heads' to see heads, 'hg merge' to merge)
Pull full.hg into test (using -R)
$ hg -R test pull full.hg
pulling from full.hg
searching for changes
no changes found
Pull full.hg into empty (using -R)
$ hg -R empty pull full.hg
pulling from full.hg
searching for changes
no changes found
Rollback empty
$ hg -R empty rollback
repository tip rolled back to revision -1 (undo pull)
Pull full.hg into empty again (using -R)
$ hg -R empty pull full.hg
pulling from full.hg
requesting all changes
adding changesets
adding manifests
adding file changes
added 9 changesets with 7 changes to 4 files (+1 heads)
new changesets f9ee2f85a263:aa35859c02ea (9 drafts)
(run 'hg heads' to see heads, 'hg merge' to merge)
Log -R full.hg in fresh empty
$ rm -r empty
$ hg init empty
$ cd empty
$ hg -R bundle://../full.hg log
changeset: 8:aa35859c02ea
tag: tip
parent: 3:eebf5a27f8ca
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 0.3m
changeset: 7:a6a34bfa0076
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 1.3m
changeset: 6:7373c1169842
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 1.3
changeset: 5:1bb50a9436a7
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 1.2
changeset: 4:095197eb4973
parent: 0:f9ee2f85a263
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 1.1
changeset: 3:eebf5a27f8ca
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 0.3
changeset: 2:e38ba6f5b7e0
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 0.2
changeset: 1:34c2bf6b0626
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 0.1
changeset: 0:f9ee2f85a263
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 0.0
Make sure bundlerepo doesn't leak tempfiles (issue2491)
$ ls .hg
00changelog.i
cache
requires
store
Pull ../full.hg into empty (with hook)
$ cat >> .hg/hgrc <<EOF
> [hooks]
> changegroup = sh -c "printenv.py changegroup"
> EOF
doesn't work (yet ?)
hg -R bundle://../full.hg verify
$ hg pull bundle://../full.hg
pulling from bundle:../full.hg
requesting all changes
adding changesets
adding manifests
adding file changes
added 9 changesets with 7 changes to 4 files (+1 heads)
new changesets f9ee2f85a263:aa35859c02ea (9 drafts)
changegroup hook: HG_HOOKNAME=changegroup HG_HOOKTYPE=changegroup HG_NODE=f9ee2f85a263049e9ae6d37a0e67e96194ffb735 HG_NODE_LAST=aa35859c02ea8bd48da5da68cd2740ac71afcbaf HG_SOURCE=pull HG_TXNID=TXN:$ID$ HG_URL=bundle*../full.hg (glob)
(run 'hg heads' to see heads, 'hg merge' to merge)
Rollback empty
$ hg rollback
repository tip rolled back to revision -1 (undo pull)
$ cd ..
Log -R bundle:empty+full.hg
$ hg -R bundle:empty+full.hg log --template="{rev} "; echo ""
8 7 6 5 4 3 2 1 0
Pull full.hg into empty again (using -R; with hook)
$ hg -R empty pull full.hg
pulling from full.hg
requesting all changes
adding changesets
adding manifests
adding file changes
added 9 changesets with 7 changes to 4 files (+1 heads)
new changesets f9ee2f85a263:aa35859c02ea (9 drafts)
changegroup hook: HG_HOOKNAME=changegroup HG_HOOKTYPE=changegroup HG_NODE=f9ee2f85a263049e9ae6d37a0e67e96194ffb735 HG_NODE_LAST=aa35859c02ea8bd48da5da68cd2740ac71afcbaf HG_SOURCE=pull HG_TXNID=TXN:$ID$ HG_URL=bundle:empty+full.hg
(run 'hg heads' to see heads, 'hg merge' to merge)
#endif
Cannot produce streaming clone bundles with "hg bundle"
$ hg -R test bundle -t packed1 packed.hg
abort: packed bundles cannot be produced by "hg bundle"
(use 'hg debugcreatestreamclonebundle')
[255]
packed1 is produced properly
#if reporevlogstore
$ hg -R test debugcreatestreamclonebundle packed.hg
writing 2664 bytes for 6 files
bundle requirements: generaldelta, revlogv1
$ f -B 64 --size --sha1 --hexdump packed.hg
packed.hg: size=2827, sha1=9d14cb90c66a21462d915ab33656f38b9deed686
0000: 48 47 53 31 55 4e 00 00 00 00 00 00 00 06 00 00 |HGS1UN..........|
0010: 00 00 00 00 0a 68 00 16 67 65 6e 65 72 61 6c 64 |.....h..generald|
0020: 65 6c 74 61 2c 72 65 76 6c 6f 67 76 31 00 64 61 |elta,revlogv1.da|
0030: 74 61 2f 61 64 69 66 66 65 72 65 6e 74 66 69 6c |ta/adifferentfil|
$ hg debugbundle --spec packed.hg
none-packed1;requirements%3Dgeneraldelta%2Crevlogv1
generaldelta requirement is not listed in stream clone bundles unless used
$ hg --config format.usegeneraldelta=false init testnongd
$ cd testnongd
$ touch foo
$ hg -q commit -A -m initial
$ cd ..
$ hg -R testnongd debugcreatestreamclonebundle packednongd.hg
writing 301 bytes for 3 files
bundle requirements: revlogv1
$ f -B 64 --size --sha1 --hexdump packednongd.hg
packednongd.hg: size=383, sha1=1d9c230238edd5d38907100b729ba72b1831fe6f
0000: 48 47 53 31 55 4e 00 00 00 00 00 00 00 03 00 00 |HGS1UN..........|
0010: 00 00 00 00 01 2d 00 09 72 65 76 6c 6f 67 76 31 |.....-..revlogv1|
0020: 00 64 61 74 61 2f 66 6f 6f 2e 69 00 36 34 0a 00 |.data/foo.i.64..|
0030: 01 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
$ hg debugbundle --spec packednongd.hg
none-packed1;requirements%3Drevlogv1
Warning emitted when packed bundles contain secret changesets
$ hg init testsecret
$ cd testsecret
$ touch foo
$ hg -q commit -A -m initial
$ hg phase --force --secret -r .
$ cd ..
$ hg -R testsecret debugcreatestreamclonebundle packedsecret.hg
(warning: stream clone bundle will contain secret revisions)
writing 301 bytes for 3 files
bundle requirements: generaldelta, revlogv1
Unpacking packed1 bundles with "hg unbundle" isn't allowed
$ hg init packed
$ hg -R packed unbundle packed.hg
abort: packed bundles cannot be applied with "hg unbundle"
(use "hg debugapplystreamclonebundle")
[255]
packed1 can be consumed from debug command
(this also confirms that streamclone-ed changes are visible via
@filecache properties to in-process procedures before closing
transaction)
$ cat > $TESTTMP/showtip.py <<EOF
> from __future__ import absolute_import
>
> def showtip(ui, repo, hooktype, **kwargs):
> ui.warn(b'%s: %s\n' % (hooktype, repo[b'tip'].hex()[:12]))
>
> def reposetup(ui, repo):
> # this confirms (and ensures) that (empty) 00changelog.i
> # before streamclone is already cached as repo.changelog
> ui.setconfig(b'hooks', b'pretxnopen.showtip', showtip)
>
> # this confirms that streamclone-ed changes are visible to
> # in-process procedures before closing transaction
> ui.setconfig(b'hooks', b'pretxnclose.showtip', showtip)
>
> # this confirms that streamclone-ed changes are still visible
> # after closing transaction
> ui.setconfig(b'hooks', b'txnclose.showtip', showtip)
> EOF
$ cat >> $HGRCPATH <<EOF
> [extensions]
> showtip = $TESTTMP/showtip.py
> EOF
$ hg -R packed debugapplystreamclonebundle packed.hg
6 files to transfer, 2.60 KB of data
pretxnopen: 000000000000
pretxnclose: aa35859c02ea
transferred 2.60 KB in *.* seconds (* */sec) (glob)
txnclose: aa35859c02ea
(for safety, confirm visibility of streamclone-ed changes by another
process, too)
$ hg -R packed tip -T "{node|short}\n"
aa35859c02ea
$ cat >> $HGRCPATH <<EOF
> [extensions]
> showtip = !
> EOF
Does not work on non-empty repo
$ hg -R packed debugapplystreamclonebundle packed.hg
abort: cannot apply stream clone bundle on non-empty repo
[255]
#endif
Create partial clones
$ rm -r empty
$ hg init empty
$ hg clone -r 3 test partial
adding changesets
adding manifests
adding file changes
added 4 changesets with 4 changes to 1 files
new changesets f9ee2f85a263:eebf5a27f8ca
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg clone partial partial2
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd partial
#if repobundlerepo
Log -R full.hg in partial
$ hg -R bundle://../full.hg log -T phases
changeset: 8:aa35859c02ea
tag: tip
phase: draft
parent: 3:eebf5a27f8ca
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 0.3m
changeset: 7:a6a34bfa0076
phase: draft
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 1.3m
changeset: 6:7373c1169842
phase: draft
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 1.3
changeset: 5:1bb50a9436a7
phase: draft
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 1.2
changeset: 4:095197eb4973
phase: draft
parent: 0:f9ee2f85a263
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 1.1
changeset: 3:eebf5a27f8ca
phase: public
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 0.3
changeset: 2:e38ba6f5b7e0
phase: public
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 0.2
changeset: 1:34c2bf6b0626
phase: public
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 0.1
changeset: 0:f9ee2f85a263
phase: public
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 0.0
Incoming full.hg in partial
$ hg incoming bundle://../full.hg
comparing with bundle:../full.hg
searching for changes
changeset: 4:095197eb4973
parent: 0:f9ee2f85a263
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 1.1
changeset: 5:1bb50a9436a7
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 1.2
changeset: 6:7373c1169842
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 1.3
changeset: 7:a6a34bfa0076
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 1.3m
changeset: 8:aa35859c02ea
tag: tip
parent: 3:eebf5a27f8ca
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 0.3m
Outgoing -R full.hg vs partial2 in partial
$ hg -R bundle://../full.hg outgoing ../partial2
comparing with ../partial2
searching for changes
changeset: 4:095197eb4973
parent: 0:f9ee2f85a263
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 1.1
changeset: 5:1bb50a9436a7
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 1.2
changeset: 6:7373c1169842
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 1.3
changeset: 7:a6a34bfa0076
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 1.3m
changeset: 8:aa35859c02ea
tag: tip
parent: 3:eebf5a27f8ca
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 0.3m
Outgoing -R does-not-exist.hg vs partial2 in partial
$ hg -R bundle://../does-not-exist.hg outgoing ../partial2
abort: *../does-not-exist.hg* (glob)
[255]
#endif
$ cd ..
hide outer repo
$ hg init
Direct clone from bundle (all-history)
#if repobundlerepo
$ hg clone full.hg full-clone
requesting all changes
adding changesets
adding manifests
adding file changes
added 9 changesets with 7 changes to 4 files (+1 heads)
new changesets f9ee2f85a263:aa35859c02ea (9 drafts)
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg -R full-clone heads
changeset: 8:aa35859c02ea
tag: tip
parent: 3:eebf5a27f8ca
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 0.3m
changeset: 7:a6a34bfa0076
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 1.3m
$ rm -r full-clone
When cloning from a non-copiable repository into '', do not
recurse infinitely (issue2528)
$ hg clone full.hg ''
abort: empty destination path is not valid
[255]
test for https://bz.mercurial-scm.org/216
Unbundle incremental bundles into fresh empty in one go
$ rm -r empty
$ hg init empty
$ hg -R test bundle --base null -r 0 ../0.hg
1 changesets found
$ hg -R test bundle --base 0 -r 1 ../1.hg
1 changesets found
$ hg -R empty unbundle -u ../0.hg ../1.hg
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
new changesets f9ee2f85a263 (1 drafts)
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
new changesets 34c2bf6b0626 (1 drafts)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
View full contents of the bundle
$ hg -R test bundle --base null -r 3 ../partial.hg
4 changesets found
$ cd test
$ hg -R ../../partial.hg log -r "bundle()"
changeset: 0:f9ee2f85a263
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 0.0
changeset: 1:34c2bf6b0626
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 0.1
changeset: 2:e38ba6f5b7e0
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 0.2
changeset: 3:eebf5a27f8ca
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 0.3
$ cd ..
#endif
test for 540d1059c802
$ hg init orig
$ cd orig
$ echo foo > foo
$ hg add foo
$ hg ci -m 'add foo'
$ hg clone . ../copy
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg tag foo
$ cd ../copy
$ echo >> foo
$ hg ci -m 'change foo'
$ hg bundle ../bundle.hg ../orig
searching for changes
1 changesets found
$ cd ..
#if repobundlerepo
$ cd orig
$ hg incoming ../bundle.hg
comparing with ../bundle.hg
searching for changes
changeset: 2:ed1b79f46b9a
tag: tip
parent: 0:bbd179dfa0a7
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: change foo
$ cd ..
test bundle with # in the filename (issue2154):
$ cp bundle.hg 'test#bundle.hg'
$ cd orig
$ hg incoming '../test#bundle.hg'
comparing with ../test
abort: unknown revision 'bundle.hg'!
[255]
note that percent encoding is not handled:
$ hg incoming ../test%23bundle.hg
abort: repository ../test%23bundle.hg not found!
[255]
$ cd ..
#endif
test to bundle revisions on the newly created branch (issue3828):
$ hg -q clone -U test test-clone
$ cd test
$ hg -q branch foo
$ hg commit -m "create foo branch"
$ hg -q outgoing ../test-clone
9:b4f5acb1ee27
$ hg -q bundle --branch foo foo.hg ../test-clone
#if repobundlerepo
$ hg -R foo.hg -q log -r "bundle()"
9:b4f5acb1ee27
#endif
$ cd ..
test for https://bz.mercurial-scm.org/1144
test that verify bundle does not traceback
partial history bundle, fails w/ unknown parent
$ hg -R bundle.hg verify
abort: 00changelog.i@bbd179dfa0a7: unknown parent!
[255]
full history bundle, refuses to verify non-local repo
#if repobundlerepo
$ hg -R all.hg verify
abort: cannot verify bundle or remote repos
[255]
#endif
but, regular verify must continue to work
$ hg -R orig verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
checked 2 changesets with 2 changes to 2 files
#if repobundlerepo
diff against bundle
$ hg init b
$ cd b
$ hg -R ../all.hg diff -r tip
diff -r aa35859c02ea anotherfile
--- a/anotherfile Thu Jan 01 00:00:00 1970 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,4 +0,0 @@
-0
-1
-2
-3
$ cd ..
#endif
bundle single branch
$ hg init branchy
$ cd branchy
$ echo a >a
$ echo x >x
$ hg ci -Ama
adding a
adding x
$ echo c >c
$ echo xx >x
$ hg ci -Amc
adding c
$ echo c1 >c1
$ hg ci -Amc1
adding c1
$ hg up 0
1 files updated, 0 files merged, 2 files removed, 0 files unresolved
$ echo b >b
$ hg ci -Amb
adding b
created new head
$ echo b1 >b1
$ echo xx >x
$ hg ci -Amb1
adding b1
$ hg clone -q -r2 . part
== bundling via incoming
$ hg in -R part --bundle incoming.hg --template "{node}\n" .
comparing with .
searching for changes
1a38c1b849e8b70c756d2d80b0b9a3ac0b7ea11a
057f4db07f61970e1c11e83be79e9d08adc4dc31
== bundling
$ hg bundle bundle.hg part --debug --config progress.debug=true
query 1; heads
searching for changes
all remote heads known locally
2 changesets found
list of changesets:
1a38c1b849e8b70c756d2d80b0b9a3ac0b7ea11a
057f4db07f61970e1c11e83be79e9d08adc4dc31
bundle2-output-bundle: "HG20", (1 params) 2 parts total
bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
changesets: 1/2 chunks (50.00%)
changesets: 2/2 chunks (100.00%)
manifests: 1/2 chunks (50.00%)
manifests: 2/2 chunks (100.00%)
files: b 1/3 files (33.33%)
files: b1 2/3 files (66.67%)
files: x 3/3 files (100.00%)
bundle2-output-part: "cache:rev-branch-cache" (advisory) streamed payload
#if repobundlerepo
== Test for issue3441
$ hg clone -q -r0 . part2
$ hg -q -R part2 pull bundle.hg
$ hg -R part2 verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
checked 3 changesets with 5 changes to 4 files
#endif
== Test bundling no commits
$ hg bundle -r 'public()' no-output.hg
abort: no commits to bundle
[255]
$ cd ..
When user merges to the revision existing only in the bundle,
it should show warning that second parent of the working
directory does not exist
$ hg init update2bundled
$ cd update2bundled
$ cat <<EOF >> .hg/hgrc
> [extensions]
> strip =
> EOF
$ echo "aaa" >> a
$ hg commit -A -m 0
adding a
$ echo "bbb" >> b
$ hg commit -A -m 1
adding b
$ echo "ccc" >> c
$ hg commit -A -m 2
adding c
$ hg update -r 1
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo "ddd" >> d
$ hg commit -A -m 3
adding d
created new head
$ hg update -r 2
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg log -G
o changeset: 3:8bd3e1f196af
| tag: tip
| parent: 1:a01eca7af26d
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: 3
|
| @ changeset: 2:4652c276ac4f
|/ user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: 2
|
o changeset: 1:a01eca7af26d
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: 1
|
o changeset: 0:4fe08cd4693e
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 0
#if repobundlerepo
$ hg bundle --base 1 -r 3 ../update2bundled.hg
1 changesets found
$ hg strip -r 3
saved backup bundle to $TESTTMP/update2bundled/.hg/strip-backup/8bd3e1f196af-017e56d8-backup.hg
$ hg merge -R ../update2bundled.hg -r 3
setting parent to node 8bd3e1f196af289b2b121be08031e76d7ae92098 that only exists in the bundle
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
When user updates to the revision existing only in the bundle,
it should show warning
$ hg update -R ../update2bundled.hg --clean -r 3
setting parent to node 8bd3e1f196af289b2b121be08031e76d7ae92098 that only exists in the bundle
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
When user updates to the revision existing in the local repository
the warning shouldn't be emitted
$ hg update -R ../update2bundled.hg -r 0
0 files updated, 0 files merged, 2 files removed, 0 files unresolved
#endif