contrib/plan9/9diff
author Gregory Szorc <gregory.szorc@gmail.com>
Thu, 20 Sep 2018 17:47:34 -0700
changeset 39860 62a532045e71
parent 16556 f9262456fb01
permissions -rwxr-xr-x
lfs: access revlog directly LFS is monkeypatching filelog.filelog and is then accessing various filelog attributes in the monkeypatched function. This is all fine. But some of the attributes being accessed by LFS are revlog centric and shouldn't be exposed on the file storage interface. This commit changes the monkeypatched functions to access proxied attributes on self._revlog instead of self. This should be safe to do because non-revlog repositories should not be using filelog instances: instead they should have a separate class to represent file storage. So it is reasonable for LFS to assume the _revlog attribute exists and points to a revlog. Differential Revision: https://phab.mercurial-scm.org/D4714
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#!/bin/rc
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# 9diff - Mercurial extdiff wrapper for diff(1)
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rfork e
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fn getfiles {
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	cd $1 &&
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	for(f in `{du -as | awk '{print $2}'})
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		test -f $f && echo `{cleanname $f}
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}
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fn usage {
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	echo >[1=2] usage: 9diff [diff options] parent child root
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	exit usage
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}
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opts=()
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while(~ $1 -*){
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	opts=($opts $1)
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	shift
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}
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if(! ~ $#* 3)
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	usage
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# extdiff will set the parent and child to a single file if there is
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# only one change. If there are multiple changes, directories will be
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# set. diff(1) does not cope particularly with directories; instead we
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# do the recursion ourselves and diff each file individually.
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if(test -f $1)
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	diff $opts $1 $2
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if not{
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	# extdiff will create a snapshot of the working copy to prevent
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	# conflicts during the diff. We circumvent this behavior by
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	# diffing against the repository root to produce plumbable
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	# output. This is antisocial.
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	for(f in `{sort -u <{getfiles $1} <{getfiles $2}}){
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		file1=$1/$f; test -f $file1 || file1=/dev/null
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		file2=$3/$f; test -f $file2 || file2=/dev/null
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		diff $opts $file1 $file2
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	}
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}
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exit ''