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Building a project
=============================================================================

One build, one worker
-----------------------------------------------------------------------------

This section uses the controller to walk through all the steps for a
build. We start with some setup, defining a git repo and an ick
project and starting the controller.

    SCENARIO run a build with one worker

    GIVEN a git repo foo.git with file index.mdwn containing
    ... "hello, world\n"
    AND a project foo, using foo.git, publishing to foo-web
    AND a running controller instance

Ensure controller knows of the project.

    WHEN user calls GET /projects
    THEN response has status 200, 
    ... and JSON body "{ "projects": [ "foo" ] }"

There is no job running now, so if the worker manager asks for work,
it gets nothing.

    WHEN worker manager calls GET /worker/bar
    THEN response has status 200, and an empty body

Trigger a new build. There is now work to do.

    WHEN git server calls GET /projects/foo/+trigger
    THEN response has status 200

    WHEN worker manager calls GET /worker/bar
    THEN response has status 200, and JSON body "{
    ...     "project": "foo",
    ...     "git": "foo.git",
    ...     "shell": "ikiwiki --build"
    ... }"

Pretend a job is running, and send output to the controller. Don't send
an exit code, since the pretend job hasn't finished. Check that the
pretend output we sent ends up in the current build log.

    WHEN worker manager calls POST /worker/bar/snippet,
    ... with JSON body '{
    ...     "project": "foo",
    ...     "stdout": "ikiwiki build output",
    ...     "stderr": "",
    ...     "exit-code": null
    ... }'
    AND user calls GET /projects/foo/logs/current
    THEN response has status 200, and text body "ikiwiki build output"

The current build step hasn't changed.

    WHEN worker manager calls GET /worker/bar
    THEN response has status 200,
    ... and JSON body "{
    ...     "project": "foo",
    ...     "git": "foo.git",
    ...     "shell": "ikiwiki --build"
    ... }"

Pretend current command finishes. Make sure current log updates, and
that we get a new thing to run.

    WHEN worker manager calls POST /worker/bar/snippet,
    ... with JSON body '{
    ...     "project": "foo",
    ...     "stdout": "|more output",
    ...     "stderr": "",
    ...     "exit-code": 0
    ... }'
    AND user calls GET /projects/foo/logs/current
    THEN response has status 200, and an empty body

    WHEN user calls GET /projects/foo/logs/previous
    THEN response has status 200, 
    ... and text body "ikiwiki build output|more output"

    WHEN worker manager calls GET /worker/bar
    THEN response has status 200,
    ... and JSON body "{
    ...     "project": "foo",
    ...     "git": "foo.git",
    ...     "shell": "rsync"
    ... }"

Tell worker the rsync command also finishes. After that, there should
be nothing more to do. The current log should become empty, the
previous log will contain the previously current log.

    WHEN worker manager calls POST /worker/bar/snippet,
    ... with JSON body '{
    ...     "project": "foo",
    ...     "stdout": "rsync output",
    ...     "stderr": "",
    ...     "exit-code": 0
    ... }'

    WHEN user calls GET /projects/foo/logs/current
    THEN response has status 200, and an empty body

    WHEN user calls GET /projects/foo/logs/previous
    THEN response has status 200,  and text body "rsync output"

    WHEN user calls GET /worker/bar
    THEN response has status 200, and an empty body

And we're done.

    FINALLY stop controller instance


Two builds, two workers
-----------------------------------------------------------------------------

This section runs two builds using two workers. The primary goal here
is to make sure each worker gets consecutive steps for its own build,
so that it runs all the steps in the same workspace.

We start with some setup, defining a git repo and an ick project and
starting the controller.

    SCENARIO run two builds with two workers

    GIVEN a git repo foo.git with file index.mdwn containing
    ... "hello, world\n"
    AND a git repo bar.git with file index.mdwn containing
    ... "hello, bar\n"
    AND a project foo, using foo.git, publishing to foo-web
    AND a project bar, using bar.git, publishing to bar-web
    AND a running controller instance

Ensure controller knows of both projects. The list of project names
should be sorted alphabetically.

    WHEN user calls GET /projects
    THEN response has status 200, 
    ... and JSON body "{ "projects": [ "bar", "foo" ] }"

There is no job running now, so if the worker manager asks for work,
it gets nothing.

    WHEN worker manager calls GET /worker/one
    THEN response has status 200, and an empty body

Trigger new builds on both projects. There is now work to do.

    WHEN git server calls GET /projects/foo/+trigger
    THEN response has status 200

    WHEN worker manager calls GET /worker/one
    THEN response has status 200, and JSON body "{
    ...     "project": "foo",
    ...     "git": "foo.git",
    ...     "shell": "ikiwiki --build"
    ... }"

The second worker should still get nothing to do.

    WHEN worker manager calls GET /worker/two
    THEN response has status 200, and an empty body

Trigger the other project, and the second worker gets something to do.

    WHEN git server calls GET /projects/bar/+trigger
    THEN response has status 200

    WHEN worker manager calls GET /worker/two
    THEN response has status 200, and JSON body "{
    ...     "project": "bar",
    ...     "git": "bar.git",
    ...     "shell": "ikiwiki --build"
    ... }"

Pretend the build step for the first project is running, and send
output to the controller. Don't send an exit code, since the pretend
step hasn't finished. Check that the pretend output we sent ends up in
the current build log.

    WHEN worker manager calls POST /worker/one/snippet,
    ... with JSON body '{
    ...     "project": "foo",
    ...     "stdout": "ikiwiki build output",
    ...     "stderr": "",
    ...     "exit-code": null
    ... }'
    AND user calls GET /projects/foo/logs/current
    THEN response has status 200, and text body "ikiwiki build output"

The current build step hasn't changed.

    WHEN worker manager calls GET /worker/one
    THEN response has status 200,
    ... and JSON body "{
    ...     "project": "foo",
    ...     "git": "foo.git",
    ...     "shell": "ikiwiki --build"
    ... }"

Pretend the build step finishes. Make sure current log updates, and
that we get a new thing to run.

    WHEN worker manager calls POST /worker/one/snippet,
    ... with JSON body '{
    ...     "project": "foo",
    ...     "stdout": "|more output",
    ...     "stderr": "",
    ...     "exit-code": 0
    ... }'
    AND user calls GET /projects/foo/logs/current
    THEN response has status 200, and an empty body

    WHEN user calls GET /projects/foo/logs/previous
    THEN response has status 200, 
    ... and text body "ikiwiki build output|more output"

    WHEN worker manager calls GET /worker/one
    THEN response has status 200,
    ... and JSON body "{
    ...     "project": "foo",
    ...     "git": "foo.git",
    ...     "shell": "rsync"
    ... }"

The other worker is still running its step, and if it asks, it gets
the same build step to run.

    WHEN worker manager calls GET /worker/two
    THEN response has status 200, and JSON body "{
    ...     "project": "bar",
    ...     "git": "bar.git",
    ...     "shell": "ikiwiki --build"
    ... }"

Tell controller the rsync command of the first project also finishes.
After that, there should be nothing more to do. The current log should
become empty, the previous log will contain the previously current
log.

    WHEN worker manager calls POST /worker/one/snippet,
    ... with JSON body '{
    ...     "project": "foo",
    ...     "stdout": "rsync output",
    ...     "stderr": "",
    ...     "exit-code": 0
    ... }'

    WHEN user calls GET /projects/foo/logs/current
    THEN response has status 200, and an empty body

    WHEN user calls GET /projects/foo/logs/previous
    THEN response has status 200,  and text body "rsync output"

    WHEN user calls GET /worker/one
    THEN response has status 200, and an empty body

Finish the other project build.

    WHEN worker manager calls POST /worker/two/snippet,
    ... with JSON body '{
    ...     "project": "bar",
    ...     "stdout": "ikiwiki output",
    ...     "stderr": "",
    ...     "exit-code": 0
    ... }'
    AND user calls GET /projects/bar/logs/current
    THEN response has status 200, and an empty body

    WHEN user calls GET /projects/bar/logs/previous
    THEN response has status 200, 
    ... and text body "ikiwiki output"

    WHEN worker manager calls GET /worker/two
    THEN response has status 200,
    ... and JSON body "{
    ...     "project": "bar",
    ...     "git": "bar.git",
    ...     "shell": "rsync"
    ... }"

    WHEN worker manager calls POST /worker/two/snippet,
    ... with JSON body '{
    ...     "project": "bar",
    ...     "stdout": "second worker rsync output",
    ...     "stderr": "",
    ...     "exit-code": 0
    ... }'

    WHEN user calls GET /projects/bar/logs/current
    THEN response has status 200, and an empty body

    WHEN user calls GET /projects/bar/logs/previous
    THEN response has status 200,  and text body 
    ... "second worker rsync output"

    WHEN user calls GET /worker/two
    THEN response has status 200, and an empty body

And we're done.

    FINALLY stop controller instance