Mercurial > hg
view contrib/plan9/9diff @ 31987:8823daaf4665
obsolescence: add test for the "branch replacement" logic during push, case D2
Mercurial checks for the introduction of new heads on push. Evolution comes
into play to detect if existing branches on the server are being replaced by
some of the new one we push.
The current code for this logic is very basic (eg: issue4354) and was poorly
tested. We have a better implementation coming in the evolve extension fixing
these issues and with more serious tests coverage. In the process of upstreaming
this improved logic, we start with adding the test case that are already passing
with the current implementation. Once they are all in, we'll upstream the better
implementation and the extra test cases.
See inline documentation for details about the test case added in this
changeset.
author | Pierre-Yves David <pierre-yves.david@ens-lyon.org> |
---|---|
date | Thu, 13 Apr 2017 16:27:42 +0200 |
parents | f9262456fb01 |
children |
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#!/bin/rc # 9diff - Mercurial extdiff wrapper for diff(1) rfork e fn getfiles { cd $1 && for(f in `{du -as | awk '{print $2}'}) test -f $f && echo `{cleanname $f} } fn usage { echo >[1=2] usage: 9diff [diff options] parent child root exit usage } opts=() while(~ $1 -*){ opts=($opts $1) shift } if(! ~ $#* 3) usage # extdiff will set the parent and child to a single file if there is # only one change. If there are multiple changes, directories will be # set. diff(1) does not cope particularly with directories; instead we # do the recursion ourselves and diff each file individually. if(test -f $1) diff $opts $1 $2 if not{ # extdiff will create a snapshot of the working copy to prevent # conflicts during the diff. We circumvent this behavior by # diffing against the repository root to produce plumbable # output. This is antisocial. for(f in `{sort -u <{getfiles $1} <{getfiles $2}}){ file1=$1/$f; test -f $file1 || file1=/dev/null file2=$3/$f; test -f $file2 || file2=/dev/null diff $opts $file1 $file2 } } exit ''