Add initial implementation

.editorconfig

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+root = true
+
+[*.py]
+indent_style = space
+indent_size = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true

.flake8

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+[flake8]
+max-line-length = 88
+ignore = E203, W503
+exclude = .git,__pycache__,env,.venv,venv

.github/workflows/cd.yaml

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+name: "CD"
+
+on:
+  workflow_dispatch:
+    inputs:
+      release-type:
+        description: "Type of release?"
+        required: true
+        type: choice
+        options:
+          - patch
+          - minor
+          - major
+
+jobs:
+  release:
+    name: "Release"
+    if: github.event.inputs.branch == 'main'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.7"
+
+      - name: "Install Poetry"
+        uses: snok/install-poetry@5e4414407e59f94f2148bcb253917dfc22dee7d9 # v1.3.0
+        with:
+          virtualenvs-create: true
+          virtualenvs-in-project: true
+
+      - name: "Bump pyproject.toml version"
+        id: bump
+        run: |
+          poetry version ${{ github.event.inputs.release-type }}
+          echo "::set-output name=version::$(poetry version --short)"
+
+      - name: "Bump `git_vector.__version__`"
+        run: sed -i 's/^__version__ *=.*/__version__ = "${{ steps.bump.outputs.version }}"/' git_vector/__init__.py
+
+      - name: "Update the changelog"
+        # Find the first line that starts with `###` or `## [<number>` from the CHANGELOG and insert the new version header before it.
+        run: sed -i "0,/^\(###\|## *\[[0-9]\).*/{s//## [${{ steps.bump.outputs.version }}] - $(date -u '+%Y-%m-%d')\n\n&/}" CHANGELOG.md
+
+      - name: "Extract version's changelog for release notes"
+        # 1. Find the lines between the first `## [<number>` and the second `## [<number>`.
+        # 2. Remove all leading and trailing newlines from the output.
+        run: sed '1,/^## *\[[0-9]/d;/^## *\[[0-9]/Q' CHANGELOG.md | sed -e :a -e '/./,$!d;/^\n*$/{$d;N;};/\n$/ba' > release_notes.txt
+
+      - name: "Commit and tag the changes"
+        run: |
+          git config user.name 'github-actions'
+          git config user.email '41898282+github-actions[bot]@users.noreply.github.com'
+          git add pyproject.toml git_vector/__init__.py CHANGELOG.md
+          git commit --message='Release ${{ steps.bump.outputs.version }}'
+          git tag --annotate --message='' v${{ steps.bump.outputs.version }}
+
+      - name: "Build the wheel"
+        run: poetry build
+
+      - name: "Publish to PyPI"
+        run: poetry publish
+        env:
+          POETRY_PYPI_TOKEN_PYPI: ${{ secrets.PYPI_TOKEN }}
+
+      - name: "Push the changes"
+        run: git push --follow-tags
+
+      - name: "Create a GitHub release"
+        uses: softprops/action-gh-release@1e07f4398721186383de40550babbdf2b84acfc5 # v1
+        with:
+          tag_name: v${{ steps.bump.outputs.version }}
+          name: v${{ steps.bump.outputs.version }}
+          body_path: release_notes.txt

.github/workflows/ci.yaml

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+name: "CI"
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  commits:
+    name: "Commits"
+    if: github.event_name == 'pull_request'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: "Check commits of the PR branch"
+        run: ./.github/check_commits.sh
+
+  linters:
+    name: "Linters"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: "Set up Python"
+        id: setup-python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.7"
+
+      - name: "Install Poetry"
+        uses: snok/install-poetry@5e4414407e59f94f2148bcb253917dfc22dee7d9 # v1.3.0
+        with:
+          virtualenvs-create: true
+          virtualenvs-in-project: true
+
+      - name: "Load cached venv"
+        id: cached-poetry-dependencies
+        uses: actions/cache@v2
+        with:
+          path: .venv
+          key: venv-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('**/poetry.lock') }}
+
+      - name: "Install dependencies"
+        if: steps.cached-poetry-dependencies.outputs.cache-hit != 'true'
+        run: poetry install --no-root
+
+      - name: "Run linters"
+        run: |
+          source "$VENV"
+          isort --check-only --diff . 
+          flake8 .
+          black --check --diff .
+
+  build:
+    name: "Build"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: "Set up Python"
+        id: setup-python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.7"
+
+      - name: "Install Poetry"
+        uses: snok/install-poetry@5e4414407e59f94f2148bcb253917dfc22dee7d9 # v1.3.0
+        with:
+          virtualenvs-create: true
+          virtualenvs-in-project: true
+
+      - name: "Build the wheel"
+        run: poetry build
+
+      - name: "Install from the wheel"
+        run: pip install dist/*.whl
+
+  tests:
+    name: "Tests"
+    needs: [linters, build]
+    strategy:
+      fail-fast: true
+      matrix:
+        python-version: ["3.7", "3.8", "3.9", "3.10"]
+        os: [ubuntu-latest, macos-latest, windows-latest]
+    defaults:
+      run:
+        shell: bash
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: "Set up Python ${{ matrix.python-version }}"
+        id: setup-python
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: "Install Poetry"
+        uses: snok/install-poetry@5e4414407e59f94f2148bcb253917dfc22dee7d9 # v1.3.0
+        with:
+          virtualenvs-create: true
+          virtualenvs-in-project: true
+
+      - name: "Load cached venv"
+        id: cached-poetry-dependencies
+        uses: actions/cache@v2
+        with:
+          path: .venv
+          key: venv-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('**/poetry.lock') }}
+
+      - name: "Install dependencies"
+        if: steps.cached-poetry-dependencies.outputs.cache-hit != 'true'
+        run: poetry install --no-root
+
+      - name: "Install the package"
+        run: poetry install
+
+      - name: "Run type-checking"
+        run: |
+          source "$VENV"
+          mypy .
+
+      - name: "Run tests"
+        run: |
+          source "$VENV"
+          pytest --verbose --cov=. --cov-report=xml .
+
+      - name: "Upload coverage"
+        if: matrix.python-version == '3.7' && matrix.os == 'ubuntu-latest'
+        uses: codecov/codecov-action@f32b3a3741e1053eb607407145bc9619351dc93b # v2.1.0
+        with:
+          files: coverage.xml

.gitignore

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+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#pdm.lock
+#   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
+#   in version control.
+#   https://pdm.fming.dev/latest/usage/project/#working-with-version-control
+.pdm.toml
+.pdm-python
+.pdm-build/
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/
+
+embeddings_cache/