greened@xxxxxxxxxxxxx (David A. Greene) writes:
> Junio C Hamano <gitster@xxxxxxxxx> writes:
>
>> We use it to find where the test-lib.sh and other lib-*.sh helper
>> definitions are, also we use it to find large-ish test vectors like
>> t3900/ and t4013/. If an external test script t1234-git-subtree.sh
>> wants to use a separate file to keep its own helper definitions, how
>> should it name it? It cannot be relative to TEST_DIRECTORY that is
>> typically "t/". It cannot be relative to "../" as TRASH_DIRECTORY
>> where the script runs, as the --root option may move it elsewhere on
>> the filesystem (and is the reason TEST_DIRECTORY variable exists in
>> the first place).
>
> I must admit I am still confused about what these variables do even
> after reading this explanation several times. I have a pretty good
> idea what TRASH_DIRECTORY is.
>
>> And how well does an external test script work with the --root option that
>> moves the TEST_DIRECTORY?
I think Junio meant TRASH_DIRECTORY here, too.
> I have no idea. I didn't even know about --root and I still don't know
> what it does. It would be helpful to have some commentary about
> options.
--root tells the tests where to put its TRASH_DIRECTORY and is
frequently used to place it on a tmpfs (such as /dev/shm) as that gives
the tests a *huge* speed boost.
That is, if I say
./t5510-fetch.sh --root=/dev/shm
then the "main test repo" aka TRASH_DIRECTORY is
/dev/shm/trash directory.t5510-fetch
--
Thomas Rast
trast@{inf,student}.ethz.ch
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