view mercurial/defaultrc/mergetools.rc @ 43913:4b7d5d10c45d

exchange: ensure all outgoing subrepo references are present before pushing

We've run into occasional problems with people committing a repo, and then
amending or rebasing in the subrepo.  That makes it so that the revision in the
parent can't be checked out, and the problem gets propagated on push.  Mercurial
already tries to defend against this sort of dangling reference by pushing *all*
subrepo revisions first.  This reuses the checks that trigger warnings in
`hg verify` to bail on the push unless using `--force`.

I thought about putting this on the server side, but at that point, all of the
data has been transferred, only to bail out.  Additionally, SCM Manager hosts
subrepos in a location that isn't nested in the parent, so normal subrepo code
would complain that the subrepo is missing when run on the server.

Because the push command pushes subrepos before calling this exchange code, a
subrepo will be pushed before the parent is verified.  Not great, but no
dangling references are exchanged, so it solves the problem.  This code isn't in
the loop that pushes the subrepos because:

  1) the list of outgoing revisions is needed to limit the scope of the check
  2) the loop only accesses the current revision, and therefore can miss
     subrepos that were dropped in previous commits
  3) this code is called when pushing a subrepo, so the protection is recursive

I'm not sure if there's a cheap check for the list of files in the outgoing
bundle.  If there is, that would provide a fast path to bypass this check for
people not using subrepos (or if no subrepo changes were made).  There's
probably also room for verifying other references like tags.  But since that
doesn't break checkouts, it's much less of a problem.

Differential Revision: https://phab.mercurial-scm.org/D7616

# Some default global settings for common merge tools

[merge-tools]
kdiff3.args=--auto --L1 $labelbase --L2 $labellocal --L3 $labelother $base $local $other -o $output
kdiff3.regkey=Software\KDiff3
kdiff3.regkeyalt=Software\Wow6432Node\KDiff3
kdiff3.regappend=\kdiff3.exe
kdiff3.fixeol=True
kdiff3.gui=True
kdiff3.diffargs=--L1 $plabel1 --L2 $clabel $parent $child

gvimdiff.args=--nofork -d -g -O $local $other $base
gvimdiff.regkey=Software\Vim\GVim
gvimdiff.regkeyalt=Software\Wow6432Node\Vim\GVim
gvimdiff.regname=path
gvimdiff.priority=-9
gvimdiff.diffargs=--nofork -d -g -O $parent $child

vimdiff.args=$local $other $base -c 'redraw | echomsg "hg merge conflict, type \":cq\" to abort vimdiff"'
vimdiff.check=changed
vimdiff.priority=-10

merge.check=conflicts
merge.priority=-100

gpyfm.gui=True

meld.gui=True
meld.args=--label=$labellocal $local --label='merged' $base --label=$labelother $other -o $output --auto-merge
meld.check=changed
meld.diffargs=-a --label=$plabel1 $parent --label=$clabel $child

tkdiff.args=$local $other -a $base -o $output
tkdiff.gui=True
tkdiff.priority=-8
tkdiff.diffargs=-L $plabel1 $parent -L $clabel $child

xxdiff.args=--show-merged-pane --exit-with-merge-status --title1 $labellocal --title2 $labelbase --title3 $labelother --merged-filename $output --merge $local $base $other
xxdiff.gui=True
xxdiff.priority=-8
xxdiff.diffargs=--title1 $plabel1 $parent --title2 $clabel $child

diffmerge.regkey=Software\SourceGear\SourceGear DiffMerge\
diffmerge.regkeyalt=Software\Wow6432Node\SourceGear\SourceGear DiffMerge\
diffmerge.regname=Location
diffmerge.priority=-7
diffmerge.args=-nosplash -merge -title1=$labellocal -title2=merged -title3=$labelother $local $base $other -result=$output
diffmerge.check=changed
diffmerge.gui=True
diffmerge.diffargs=--nosplash --title1=$plabel1 --title2=$clabel $parent $child

p4merge.args=$base $local $other $output
p4merge.regkey=Software\Perforce\Environment
p4merge.regkeyalt=Software\Wow6432Node\Perforce\Environment
p4merge.regname=P4INSTROOT
p4merge.regappend=\p4merge.exe
p4merge.gui=True
p4merge.priority=-8
p4merge.diffargs=$parent $child

p4mergeosx.executable = /Applications/p4merge.app/Contents/MacOS/p4merge
p4mergeosx.args = $base $local $other $output
p4mergeosx.gui = True
p4mergeosx.priority=-8
p4mergeosx.diffargs=$parent $child

tortoisemerge.args=/base:$base /mine:$local /theirs:$other /merged:$output
tortoisemerge.regkey=Software\TortoiseSVN
tortoisemerge.regkeyalt=Software\Wow6432Node\TortoiseSVN
tortoisemerge.check=changed
tortoisemerge.gui=True
tortoisemerge.priority=-8
tortoisemerge.diffargs=/base:$parent /mine:$child /basename:$plabel1 /minename:$clabel

ecmerge.args=$base $local $other --mode=merge3 --title0=$labelbase --title1=$labellocal --title2=$labelother --to=$output
ecmerge.regkey=Software\Elli\xc3\xa9 Computing\Merge
ecmerge.regkeyalt=Software\Wow6432Node\Elli\xc3\xa9 Computing\Merge
ecmerge.gui=True
ecmerge.diffargs=$parent $child --mode=diff2 --title1=$plabel1 --title2=$clabel

# editmerge is a small script shipped in contrib.
# It needs this config otherwise it behaves the same as internal:local
editmerge.args=$output
editmerge.check=changed
editmerge.premerge=keep

filemerge.executable=/Developer/Applications/Utilities/FileMerge.app/Contents/MacOS/FileMerge
filemerge.args=-left $other -right $local -ancestor $base -merge $output
filemerge.gui=True

filemergexcode.executable=/Applications/Xcode.app/Contents/Applications/FileMerge.app/Contents/MacOS/FileMerge
filemergexcode.args=-left $other -right $local -ancestor $base -merge $output
filemergexcode.gui=True

; Windows version of Beyond Compare
beyondcompare3.args=$local $other $base $output /ro /lefttitle=$labellocal /centertitle=$labelbase /righttitle=$labelother /automerge /reviewconflicts /solo
beyondcompare3.regkey=Software\Scooter Software\Beyond Compare 3
beyondcompare3.regname=ExePath
beyondcompare3.gui=True
beyondcompare3.priority=-2
beyondcompare3.diffargs=/lro /lefttitle=$plabel1 /righttitle=$clabel /solo /expandall $parent $child

; Linux version of Beyond Compare
bcompare.args=$local $other $base -mergeoutput=$output -ro -lefttitle=$labellocal -centertitle=$labelbase -righttitle=$labelother -outputtitle=merged -automerge -reviewconflicts -solo
bcompare.gui=True
bcompare.priority=-1
bcompare.diffargs=-lro -lefttitle=$plabel1 -righttitle=$clabel -solo -expandall $parent $child

; OS X version of Beyond Compare
bcomposx.executable = /Applications/Beyond Compare.app/Contents/MacOS/bcomp
bcomposx.args=$local $other $base -mergeoutput=$output -ro -lefttitle=$labellocal -centertitle=$labelbase -righttitle=$labelother -outputtitle=merged -automerge -reviewconflicts -solo
bcomposx.gui=True
bcomposx.priority=-1
bcomposx.diffargs=-lro -lefttitle=$plabel1 -righttitle=$clabel -solo -expandall $parent $child

winmerge.args=/e /x /wl /ub /dl $labelother /dr $labellocal $other $local $output
winmerge.regkey=Software\Thingamahoochie\WinMerge
winmerge.regkeyalt=Software\Wow6432Node\Thingamahoochie\WinMerge\
winmerge.regname=Executable
winmerge.check=changed
winmerge.gui=True
winmerge.priority=-10
winmerge.diffargs=/r /e /x /ub /wl /dl $plabel1 /dr $clabel $parent $child

araxis.regkey=SOFTWARE\Classes\TypeLib\{46799e0a-7bd1-4330-911c-9660bb964ea2}\7.0\HELPDIR
araxis.regappend=\ConsoleCompare.exe
araxis.priority=-2
araxis.args=/3 /a2 /wait /merge /title1:"Other" /title2:"Base" /title3:"Local :"$local $other $base $local $output
araxis.checkconflict=True
araxis.binary=True
araxis.gui=True
araxis.diffargs=/2 /wait /title1:$plabel1 /title2:$clabel $parent $child

diffuse.priority=-3
diffuse.args=$local $base $other
diffuse.gui=True
diffuse.diffargs=$parent $child

UltraCompare.regkey=Software\Microsoft\Windows\CurrentVersion\App Paths\UC.exe
UltraCompare.regkeyalt=Software\Wow6432Node\Microsoft\Windows\CurrentVersion\App Paths\UC.exe
UltraCompare.args = $base $local $other -title1 base -title3 other
UltraCompare.priority = -2
UltraCompare.gui = True
UltraCompare.binary = True
UltraCompare.check = conflicts,changed
UltraCompare.diffargs=$child $parent -title1 $clabel -title2 $plabel1