How to fix error: sparse-checkout is not supported in this CI environment in Git

# GitHub Actions
- name: Check Git version
  run: git --version

# GitLab CI
check_git:
  script:
    - git --version

# Jenkins (Groovy)
sh 'git --version'

# Azure DevOps
- script: git --version

- name: Install latest Git
  run: |
    sudo add-apt-repository ppa:git-core/ppa -y
    sudo apt-get update
    sudo apt-get install git -y
    git --version

# Add git-core PPA and install latest Git
RUN apt-get update && \
    apt-get install -y software-properties-common && \
    add-apt-repository ppa:git-core/ppa -y && \
    apt-get update && \
    apt-get install -y git && \
    rm -rf /var/lib/apt/lists/*

# Alpine usually has recent Git versions
RUN apk add --no-cache git

before_script:
  - apt-get update && apt-get install -y software-properties-common
  - add-apt-repository ppa:git-core/ppa -y
  - apt-get update && apt-get install -y git
  - git --version

# Enable sparse checkout via config
git config core.sparseCheckout true

# Create sparse-checkout patterns file
mkdir -p .git/info
echo 'path/to/directory/' >> .git/info/sparse-checkout
echo 'another/path/' >> .git/info/sparse-checkout

# Apply the sparse checkout
git read-tree -mu HEAD

- name: Checkout with legacy sparse-checkout
  run: |
    git clone --no-checkout --depth 1 ${{ github.server_url }}/${{ github.repository }}.git .
    git config core.sparseCheckout true
    echo 'src/' >> .git/info/sparse-checkout
    echo 'package.json' >> .git/info/sparse-checkout
    git checkout ${{ github.sha }}

# v4 may fail on old Git; v3 is more compatible
- uses: actions/checkout@v3

- uses: actions/checkout@v4
  with:
    sparse-checkout: ""  # Explicitly disable sparse-checkout

checkout([
    $class: 'GitSCM',
    extensions: [[$class: 'SparseCheckoutPaths',
                  sparseCheckoutPaths: [[path: 'src/']]]]
])

# Instead of older images
# FROM python:2.7.18-buster  # Has old Git

# Use newer base images
FROM python:3.11-bookworm    # Debian 12, Git 2.39+
FROM ubuntu:22.04            # Git 2.34+
FROM ubuntu:24.04            # Git 2.43+

FROM python:3.9-slim AS base

# Install newer Git
RUN apt-get update && \
    apt-get install -y --no-install-recommends \
    software-properties-common && \
    add-apt-repository ppa:git-core/ppa -y && \
    apt-get update && \
    apt-get install -y --no-install-recommends git && \
    rm -rf /var/lib/apt/lists/*

# Required for --filter option with git fetch in older versions
git config extensions.partialClone origin

# Then you can use partial clone with sparse-checkout
git clone --filter=blob:none --no-checkout <url>
git sparse-checkout init --cone
git sparse-checkout set path/to/dir
git checkout main

- uses: actions/checkout@v4
  with:
    sparse-checkout: |
      src
      package.json
    sparse-checkout-cone-mode: true
    filter: blob:none

# Clone only recent history
git clone --depth 1 <repository-url>
# Remove unwanted directories after clone
rm -rf unwanted-dir/

# Download specific directory as archive (works with remote repos)
git archive --remote=<repository-url> HEAD:path/to/dir | tar -x

variables:
  GIT_STRATEGY: none

job:
  script:
    - git init
    - git remote add origin $CI_REPOSITORY_URL
    - git config core.sparseCheckout true
    - echo "src/" >> .git/info/sparse-checkout
    - git fetch --depth 1 origin $CI_COMMIT_SHA
    - git checkout FETCH_HEAD

- checkout: none
- script: |
    git init
    git remote add origin $(Build.Repository.Uri)
    git config core.sparseCheckout true
    echo "src/" >> .git/info/sparse-checkout
    git fetch --depth 1 origin $(Build.SourceVersion)
    git checkout FETCH_HEAD