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License: MPL 2.0

sisl-files

This is a test-farm for files related to testing sisl.

Workflow

The workflow of this repository is, well, non-standard.

  1. There are 2 branches which should be used.
    • main (complete test file storage)
    • stripped (actually used files in sisl)
  2. If a new test needs to be added, one should:
    • add all files for a given test (as single commits, see further down) to the branch named main
    • create a PR against main.
    • then once that is in, one should cherry-pick onto stripped of the files from the tests that are to be used in the actual tests.
    • create a PR against stripped (with only the cherry-picked commits).

The main idea behind this is that the repository is heavily used by CI executions, meaning there is a high bandwidth requirement. Since this is an open-source project there are limitations as to how much data there can be fetched every month.

This means that one will never do any commits in stripped (which are test related).
Only cherry-picks against stripped should be done.

Adding a test

Adding a new test requires that we adhere to some standards.

This enables us to faster figure out why things have changed over the course of new program versions. And it also allows one to faster redo tests, or even delete tests if they become obsolete.

Each test needs to retain a very strict layout:

  1. It should have its own directory located in the code it represents. E.g. <code-name>/<test-name>.
  2. Each test folder should contain a README.md file describing the following details:
  • system information (as much as possible)
  • which version of the code was used
  • date-stamp of the run
  • which additional files are required, and how to obtain them. This could encompass pseudo-potentials, or files otherwise shipped with the software (no need to fill with easily obtained files). Ideally, links to the files should be present, or a description on how to obtain them. (Please refer to each codes <code-name>/README.md which may contain this information).
    Please see in the static folder whether some files can already be located.
  • A test which requires several runs should have sub-folders which should be thoroughly documented in the README.md file on their relation, order of execution, etc.
  • a small example of how to run the test should be given in the end

To add files in the repo, please do it like this:

cd <test-name>
git add README.md
git commit -m "Added README.md for test=<test-name>"
<path-to-git-root>/commit_single.sh

The above will ensure that all files are added as single commits, with a predefined commit message.

The reason for doing single-file commits is that it makes it trivial to update the stripped branch with single files to be tested against. Over the course of sisl development, it has been obvious that new file-support in sisl can trivially be tested by already having access to them through tests done. Hence the 2-fold structure with complete tree of files, and a stripped version of the files that are actually tested.

Cherry-picking from main to stripped

The workflow to add files from main to stripped would be something like this:

There is a <path-to-git-root>/cherry_pick.sh which can be used to shortcut the explanation below.

Do this:

  1. Checkout main.

  2. Navigate to the files you wish to move to the stripped folder.

  3. Call the cherry_pick.sh command with the files as arguments.

    /cherry_pick.sh siesta.out siesta.ORB_INDX

    the script will automatically sort the cherry-picks, and only take the missing cherry-picks that edits those files.

Internal development

Basically there should never be anything required to be in the stripped branch which isn't already in the main branch. So we will only ever use stripped for cherry-picks. There should never be any information there that is useful for anybody to see.
One need not cherry-pick the readme files etc. Only files that are to be tested!

Usage

If you find the test-files useful for other kinds of tests. Feel free to follow this repository.

License

See LICENSE in the top folder. We are using the MPL-2.0 license.

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