[PATCH 3 of 3] run-tests: accept '\' vs '/' path differences without '(glob)'

[Martin von Zweigbergk]

On Thu, Dec 14, 2017 at 8:57 PM, Kevin Bullock
<kbullock+mercurial at ringworld.org> wrote:
>> On Dec 14, 2017, at 22:55, Martin von Zweigbergk <martinvonz at google.com> wrote:
>>
>> Could you point me to the build output?
>
> https://buildbot.mercurial-scm.org/builders/hg%20tests/builds/1361/steps/run-tests.py%20%28python%202.7.10%29/logs/stdio
>
>> Do you also know which shell is used by it?
>
> /bin/sh is dash, but it may be using /bin/bash, not sure.

After some experimentation, I was able to reproduce it. run-tests.py
actually accepts a --shell option that you can use. However,
test-run-tests.t calls helper-runtests.sh that unsets the shell, so
even if you pass --shell=/bin/dash, you only run the test with that
shell, not the test that is run by the test. So if you comment out the
relevant line in helper-runtests.sh and pass --shell=/bin/dash, you
can reproduce it on a machine where /bin/sh is something else (without
repointing that link).

dash and bash behave differently on `echo '\\\\'`, but I think we can
switch to printf to make it compatible. I'll work on a patch.

>
> pacem in terris / мир / शान्ति / ‎‫سَلاَم‬ / 平和
> Kevin R. Bullock
>