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This reverts commit d548eda1.

Also re-sort the `.gitattributes` file.

Fixes #313

`ignore-as-root` was needed in TYPO3 11.4 only and is obsolete with
11.5.

Co-authored-by: Łukasz Uznański <l.uznanski@macopedia.com>

Add PhpStorm meta file for autocomplete of `GeneralUtility::makeInstance`, `getAccessibleMock` and `getAccessibleMockForAbstractClass` in unit tests

Resolves: #287
Co-authored-by: Łukasz Uznański <l.uznanski@macopedia.com>

Relates to #291

Co-authored-by: Łukasz Uznański <l.uznanski@macopedia.com>

Co-authored-by: Łukasz Uznański <l.uznanski@macopedia.com>

- configure the checked paths via the configuration file
- do not output a progress bar on CI
- add a baseline file and a command for creating it
- cap the number of processes

Fixes #281

- make the app dir explicit
- allow the root project to be used as an extension
  (this fixes the test in TYPO3 >= 11.4)

Co-authored-by: Łukasz Uznański <l.uznanski@macopedia.com>

We now only use PHIVE for those tools that are not compatible
with the PHP versions we currently support (7.2-7.4).
This currently is only the PHP copy-paste detector
(which requires PHP >= 7.3).

This also (as a nice side effect) provides `ddev composer normalize`
out of the box.

For YAML linting, we now use the `symfony/yaml` package (which already
was installed as an indirected dependency, and which we now explicitly
require).

Fixes #274
Fixes #279

Also stop running the other CI workflow on every push/PR
(as the results of both workflows provide the same results).

Fixes #275

Composer has a built-in functionality for describing Composer scripts,
and we should use it for documentating our custom scripts.

Adds the command `docs:generate` to `composer.json`.

Co-authored-by: Łukasz Uznański <l.uznanski@macopedia.com>

Co-authored-by: Łukasz Uznański <l.uznanski@macopedia.com>

Co-authored-by: David Bruchmann <david.bruchmann@gmail.com>
Co-authored-by: Łukasz Uznański <l.uznanski@macopedia.com>

Co-authored-by: Łukasz Uznański <l.uznanski@macopedia.com>

Actually remove .gitignore in GitHub Action -  release to TER

The indentation of 4 spaces for Markdown and XML files already is
set via the default configuration in the `.editorconfig`.

Fixes #244

This patch adds a badge for the code of conduct to the readme like suggested at https://www.contributor-covenant.org/