[WIP] release(4.0.0): OpenSTEF 4.0.0 tracking branch.

.github/CODE_OF_CONDUCT.md

@@ -0,0 +1,72 @@
+<!--
+SPDX-FileCopyrightText: 2017-2025 Contributors to the OpenSTEF project <openstef@lfenergy.org>
+
+SPDX-License-Identifier: MPL-2.0
+-->
+
+# Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, gender identity and expression, level of
+experience, education, socio-economic status, nationality, personal appearance,
+race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+*   Using welcoming and inclusive language
+*   Being respectful of differing viewpoints and experiences
+*   Gracefully accepting constructive criticism
+*   Focusing on what is best for the community
+*   Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+*   The use of sexualized language or imagery and unwelcome sexual attention or
+    advances
+*   Trolling, insulting/derogatory comments, and personal or political attacks
+*   Public or private harassment
+*   Publishing others' private information, such as a physical or electronic
+    address, without explicit permission
+*   Other conduct which could reasonably be considered inappropriate in a
+    professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or reject
+comments, commits, code, wiki edits, issues, and other contributions that are
+not aligned to this Code of Conduct, or to ban temporarily or permanently any
+contributor for other behaviors that they deem inappropriate, threatening,
+offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+
+## Conflict Resolution
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project team at openstef@lfenergy.org. All complaints will be reviewed and investigated and will result in a response that is deemed necessary and appropriate to the circumstances. The project team is obligated to maintain confidentiality with regard to the reporter of an incident. Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good faith may face temporary or permanent repercussions as determined by other members of the project’s leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the Contributor Covenant, version 1.4,
+available at
+https://www.contributor-covenant.org/version/1/4/code-of-conduct.html

.github/CONTRIBUTING.md

@@ -0,0 +1,39 @@
+<!--
+SPDX-FileCopyrightText: 2025 Contributors to the OpenSTEF project <openstef@lfenergy.org>
+
+SPDX-License-Identifier: MPL-2.0
+-->
+
+# Contributing to OpenSTEF
+
+Thank you for your interest in contributing to OpenSTEF! 🚀
+
+## Quick Start
+
+1. **Read our contributing guide**: [openstef.github.io/openstef/v4/contribute](https://openstef.github.io/openstef/v4/contribute/index.html)
+2. **Install dependencies**: `uv sync --group dev`
+3. **Make your changes** and ensure all checks pass: `uv run poe all --check`
+4. **Submit a pull request**
+
+## Documentation
+
+For information about:
+
+- 🛠️ **Development setup** - Environment setup with uv and modern Python tools
+- 🔄 **Development workflow** - Branch naming, commit messages, and PR process  
+- 📝 **Documentation guidelines** - Writing docs and examples
+- 🧪 **Testing standards** - Writing and running tests
+- 📋 **Style guide** - Code formatting and quality standards
+
+**Visit our full contributing guide: [openstef.github.io/openstef/v4/contribute](https://openstef.github.io/openstef/v4/contribute/index.html)**
+
+## Getting Help
+
+- 💬 **Slack**: [LF Energy workspace](https://slack.lfenergy.org/) (#openstef channel)
+- 🐛 **Issues**: [GitHub Issues](https://github.com/OpenSTEF/openstef/issues)
+- 📧 **Email**: openstef@lfenergy.org
+- 📖 **Support**: [Support page](https://openstef.github.io/openstef/v4/project/support.html)
+
+## Good First Issues
+
+New contributors should look for [`good first issue`](https://github.com/OpenSTEF/openstef/labels/good%20first%20issue) labels!

.github/pr-labeler.yml

@@ -1,4 +1,4 @@
-# SPDX-FileCopyrightText: 2017-2023 Contributors to the OpenSTEF project <korte.termijn.prognoses@alliander.com> # noqa E501
+# SPDX-FileCopyrightText: 2017-2025 Contributors to the OpenSTEF project <openstef@lfenergy.org>
 #
 # SPDX-License-Identifier: MPL-2.0
 # config of action in ./workflows/...

.github/workflows/_job_quality_check.yaml

@@ -0,0 +1,65 @@
+# SPDX-FileCopyrightText: 2025 Contributors to the OpenSTEF project <openstef@lfenergy.org>
+#
+# SPDX-License-Identifier: MPL-2.0
+
+name: Quality Check
+on:
+  workflow_call:
+    inputs:
+      # _SKIP*: sometimes you want to quickly test something, without having the whole suite kicking in.
+      # This is a lazy way to switch on and off steps. But never set it to true in main.
+      _SKIP_QUALITY:
+        type: boolean
+        default: false
+        description: for debug purposes only - if true skip all quality checks.
+
+jobs:
+  builder:
+    name: Quality Checks
+    # Avoid duplicate runs: run on push (same-repo branches) OR on pull_request only if from a fork
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout # Must be done before using composite actions
+        uses: actions/checkout@v4
+        with:
+          show-progress: false # very verbose for not much
+      - name: Install uv
+        uses: astral-sh/setup-uv@v6
+        # uv is needed for qa and deploy, so is kinda always needed. No need to skip it.
+        with:
+          activate-environment: true
+          enable-cache: true
+      - name: Install dependencies
+        if: ${{ always() }}
+        run: uv sync --frozen --no-install-project --all-groups --all-extras --all-packages
+
+      # Run quality checks
+      - name: reuse
+        if: ${{ ! inputs._SKIP_QUALITY && always() }}
+        run: poe reuse
+      - name: licensecheck
+        if: ${{ ! inputs._SKIP_QUALITY && always() }}
+        run: poe licensecheck --check
+      - name: lint
+        if: ${{ ! inputs._SKIP_QUALITY && always() }}
+        run: poe lint --check
+      - name: format
+        if: ${{ ! inputs._SKIP_QUALITY && always() }}
+        run: poe format --check
+      - name: format-pyproject
+        if: ${{ ! inputs._SKIP_QUALITY && always() }}
+        run: poe format-pyproject --check
+      - name: typing
+        if: ${{ ! inputs._SKIP_QUALITY && always() }}
+        run: poe type
+      - name: tests
+        if: ${{ ! inputs._SKIP_QUALITY && always() }}
+        run: poe tests
+      - name: doctests
+        if: ${{ ! inputs._SKIP_QUALITY && always() }}
+        run: poe doctests
+
+      - name: Stop if any quality step failed
+        # All tests are run with always() not to stop on the first error. This step makes the workflow fail if any quality step failed.
+        if: ${{ failure() }}
+        run: exit 1

.github/workflows/check.yaml

@@ -0,0 +1,21 @@
+# SPDX-FileCopyrightText: 2025 Contributors to the OpenSTEF project <openstef@lfenergy.org>
+# SPDX-License-Identifier: MPL-2.0
+
+name: Quality Check
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+on:
+  # push: # Disabled until release of v4.0.0
+  #   branches: ['main']
+  pull_request:
+    types: [opened, synchronize, reopened, closed]
+
+permissions:
+  contents: read
+
+jobs:
+  quality:
+    name: Quality Checks
+    uses: ./.github/workflows/_job_quality_check.yaml

.github/workflows/citations.yaml

@@ -1,4 +1,4 @@
-# SPDX-FileCopyrightText: 2017-2025 Contributors to the OpenSTEF project <korte.termijn.prognoses@alliander.com>
+# SPDX-FileCopyrightText: 2017-2025 Contributors to the OpenSTEF project <openstef@lfenergy.org>
 #
 # SPDX-License-Identifier: MPL-2.0
 
@@ -35,4 +35,4 @@ jobs:
       run: |
         sudo apt-get update && sudo apt-get install -y r-base
     - name: Validate CITATION.cff
-      uses: dieghernan/cff-validator@v4
+      uses: dieghernan/cff-validator@v4