branchcache: do not accept "empty update"
This currently does not happens and it will be simpler that is remains that way.
If all update do something, we will be able to simply declare, in a later
changesets, that all update to result in a dirty branchcache.
#testcases continuecommand continueflag
Test rebase --continue with rebasestate written by legacy client
$ cat >> $HGRCPATH <<EOF
> [extensions]
> rebase=
> drawdag=$TESTDIR/drawdag.py
> EOF
#if continueflag
$ cat >> $HGRCPATH <<EOF
> [alias]
> continue = rebase --continue
> EOF
#endif
$ hg init
$ hg debugdrawdag <<'EOF'
> D H
> | |
> C G
> | |
> B F
> | |
> Z A E
> \|/
> R
> EOF
$ for r in A B C D E F G H R Z
> do
> eval node_$r=$(hg log -r $r -T '{node}')
> done
rebasestate generated by a legacy client running "hg rebase -r B+D+E+G+H -d Z"
$ touch .hg/last-message.txt
$ cat > .hg/rebasestate <<EOF
> 0000000000000000000000000000000000000000
> $node_Z
> 0000000000000000000000000000000000000000
> 0
> 0
> 0
>
> $node_A:-2
> $node_E:0000000000000000000000000000000000000000
> $node_B:0000000000000000000000000000000000000000
> $node_F:-3
> $node_C:-3
> $node_G:0000000000000000000000000000000000000000
> $node_D:0000000000000000000000000000000000000000
> $node_H:0000000000000000000000000000000000000000
> EOF
#if continuecommand
$ hg continue --dry-run
rebase in progress, will be resumed
#endif
$ hg continue
rebasing 4:c1e6b162678d B "B"
rebasing 8:6f7a236de685 D "D"
rebasing 2:de008c61a447 E "E"
rebasing 7:d2fa1c02b240 G "G"
rebasing 9:6582e6951a9c H tip "H"
warning: orphaned descendants detected, not stripping c1e6b162678d, de008c61a447
saved backup bundle to $TESTTMP/.hg/strip-backup/6f7a236de685-9880a3dc-rebase.hg
$ hg log -G -T '{rev}:{node|short} {desc}\n'
o 11:721b8da0a708 H
|
o 10:9d65695ec3c2 G
|
o 9:21c8397a5d68 E
|
| o 8:fc52970345e8 D
| |
| o 7:eac96551b107 B
|/
| o 6:bd5548558fcf C
| |
| | o 5:aeba276fcb7d F
| | |
| o | 4:c1e6b162678d B
| | |
o | | 3:f424eb6a8c01 Z
| | |
+---o 2:de008c61a447 E
| |
| o 1:21a6c4502885 A
|/
o 0:b41ce7760717 R