[PATCH] tests: make test-check-code.t work with lz4revlog repositories

[Durham Goode]

On 1/6/16 1:52 PM, Martin von Zweigbergk wrote:
> On Wed, Jan 6, 2016 at 1:45 PM Laurent Charignon <lcharignon at fb.com 
> <mailto:lcharignon at fb.com>> wrote:
>
>>     On Jan 6, 2016, at 1:39 PM, Martin von Zweigbergk
>>     <martinvonz at google.com <mailto:martinvonz at google.com>> wrote:
>>
>>     I would not expect our tests to work on other projects, and it
>>     seems unfortunate to include knowledge of a specific other
>>     project (lz4revlog) in hg core, even though the other project may
>>     be related to hg.
>>
>>
>
>     Ok, I will find another way to make it work...
>
>
> If the goal was to be able to use extensions that add requirements on 
> an hg core clone, I would be more open to it. Let's say you were 
> instead using lz4revlog on hg core, would tests fail then? I can 
> imagine they would since your ~/.hgrc is not read (right?). Perhaps 
> the test runner could export a ORIG_HOME or so pointing to your ~ and 
> we could do 'HOME="$ORIG_HOME" hg locate'? I don't know if we care 
> enough about enabling extensions on hg core repos that we want to 
> complicate our tests, though. What do you think? Others?
>
Yes, this applies to hg core too.  If hg core is cloned with lz4, all of 
the test-check-* tests fail because they run hg with all extensions 
disabled (which is desirable for the actual test invocations, since it 
means they are consistent regardless of system settings).

Maybe we can add a hg_sys command that is available inside the test 
suite and allows us to run the normal system Mercurial without all the 
configs disabled?

It's not specific to home directories though (we have system wide hgrc's 
that need to be loaded too).
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