We will be moving to a tree-shaped track rather than a linear one, as described in the [progression & learning in Exercism](https://github.com/exercism/docs/blob/master/about/conception/progression.md) design document.
In order to support this, we need to expand the metadata that exercises are configured with.
Note that 'core' exercises are never unlocked by any other exercises. Core exercises appear in the track in the order that they are listed in the array.
Non-core exercises depend on only one exercise (unlocked_by: ). At the moment we are assuming that this is a core exercise, but there is no reason that it needs to be.
Until now we have operated with a separate deprecated array. These are now being moved into the exercises array with a deprecated field.
With these defaults the track in nextercism will have no core exercises, and all the exercises will be available as 'extras' from the start.
If you haven't already, now would be a good time to do the following:
* add a rough estimate of difficulty to each exercise (scale: 1-10)
* add topics to each exercise
* choose *at most 20 exercises* to be core exercises (set core: true, and delete the unlocked_by key)
* for each exercise that is not core, decide which exercise is the prerequisite (max 1)
If possible, leave 3 or 4 simple exercises as (core: false, unlocked_by: null), as this will provide new participants with some exercises that they can tackle even if they have not finished the first core exercise.
This changes configlet to pass a subcommand.
For now, we've released a version of configlet which handles both the old command:
configlet path/to/track
as well as the new command:
configlet lint path/to/track
This will let us update all the travis files to include the subcommand before we
release the version of configlet that requires the subcommand.
I failed to notice with the initial commit that the first tests in these
files are just the "version sanity check". This should start learners
off with a useful first failure.
This allows learners to gradually approach exercise. However, unlike
commented tests, the Elm compiler is still able to infer type
information from the skipped tests.
We renamed the language track repositories, removing the leading 'x',
as this is cleaner and more understandable.
This does minor cleanup to fix references to the old name.
The leading 'x' is kind of arbitrary. Especially now that we can set
topics on the repositories, we don't need a pattern to distinguish what
is a track or not.
The repository itself has already been renamed. GitHub redirects from
the old name to the new name, so we do not have to rush to fix links to
the old repository name, though we should update them for the sake of
clarity.
Since the exercise implementations are all in the exercises directory
we no longer need to ignore any non-exercise directories in the root
of the track.
We've had some difficulty coming up with a good name for the file
that gets included in all of the exercise READMEs for a given track.
These are global hints, like how to run the test suite, which are
relevant to all the exercises on a track.
We started with SETUP.md in the root of the repository, then renamed
that to exercises/TRACK_HINTS.md because SETUP.md was misleading and
confusing, but then we realized that TRACK_HINTS.md was a bit ambiguous
and confusing as well.
Finally we settled on putting the file in the docs directory, since
this is user-facing documentation, and calling the file
EXERCISE_README_INSERT.md
See https://github.com/exercism/meta/issues/5 for context.
We don't need the duplication, especially now that the GitHub interface shows the
license information on the main page of the repository when it can be detected
directly from the LICENSE file.
