Re: [Qemu-devel] [PATCH 04/12] docker: Add test runner

["Alex Bennée" <alex.bennee@linaro.org>]

Fam Zheng <famz@redhat.com> writes:

> On Mon, 02/15 14:10, Alex Bennée wrote:
>>
>> Fam Zheng <famz@redhat.com> writes:
>>
>> > On Mon, 02/15 12:45, Alex Bennée wrote:
>> >>
>> >> Alex Bennée <alex.bennee@linaro.org> writes:
>> >>
>> >> > Fam Zheng <famz@redhat.com> writes:
>> >> >
>> >> >> It's better to have a launcher for all tests, to make it easier to
>> >> >> initialize and manage the environment.
>> >> >>
>> >> >> Signed-off-by: Fam Zheng <famz@redhat.com>
>> >> >> ---
>> >> >>  tests/docker/run | 23 +++++++++++++++++++++++
>> >> >>  1 file changed, 23 insertions(+)
>> >> >>  create mode 100755 tests/docker/run
>> >> >>
>> <snip>
>> >> OK that won't work if you have alternates in your git setup. It seems to
>> >> me the creation of the pristine tree for docker should be done before we
>> >> enter the docker environment.
>> >>
>> >> There is a slight wrinkle as to what happens if the user wants to enter
>> >> an interactive session for debugging. However that doesn't seem possible
>> >> via the makefile and perhaps that is just as well. Perhaps that should
>> >> be a helper script for the user?
>> >
>> > We can use "make distclean" in the copied tree.
>>
>> I wouldn't - distclean isn't always that clean due to *mumble mumble*
>> makefile reasons. You could try this approach:
>>
>> commit f838d3bbe2f71c731dfe172f1c3286084de203c8
>> Author: Alex Bennée <alex.bennee@linaro.org>
>> Date:   Mon Feb 15 12:52:21 2016 +0000
>>
>>     tests/docker/Makefile.include: snapshot the src for docker
>>
>>     Instead of providing a live version of the source tree to the docker
>>     container we snapshot it with git-archive. This ensure the tree is in a
>>     pristine state for whatever operations the container is going to run on
>>     them.
>>
>>     Uncommitted changes known to files known by the git index will be
>>     included in the snapshot if there are any.
>>
>>     Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
>>
>> diff --git a/tests/docker/Makefile.include b/tests/docker/Makefile.include
>> index ca84c35..63a799c 100644
>> --- a/tests/docker/Makefile.include
>> +++ b/tests/docker/Makefile.include
>> @@ -2,7 +2,7 @@
>>
>>  $(if $(quiet-command),,$(eval include $(SRC_PATH)/rules.mak))
>>
>> -.PHONY: docker docker-build docker-run docker-clean
>> +.PHONY: docker docker-build docker-qemu-src docker-run docker-clean
>>
>>  DOCKER_SUFFIX = .docker
>>
>> @@ -16,12 +16,17 @@ DOCKER_TOOLS := $(filter-out test-%, $(DOCKER_SCRIPTS))
>>  TESTS ?= %
>>  IMAGES ?= %
>>
>> +docker-qemu-src:
>> +	$(if git diff-index --quiet HEAD --, 										\
>> +		git archive -1 HEAD --prefix=qemu-docker-snapshot/ --format=tar.gz | tar -xz -C /tmp,			\
>> +		git archive -1 `git stash create` --prefix=qemu-docker-snapshot/ --format=tar.gz | tar -xz -C /tmp)
>
> Does this clutter the user's git stash list? Or we can just error out if the
> working tree is not clean.

No it doesn't, it is a temporary dangling object, quoth the manual:

       create
           Create a stash (which is a regular commit object) and return its object name, without storing it anywhere in the ref
           namespace. This is intended to be useful for scripts. It is probably not the command you want to use; see "save" above.

>
> Fam


--
Alex Bennée