Add initial version

.github/workflows/workflow.yml

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+name: Tests
+
+on:
+  pull_request:
+    branches:
+      - main
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macOS-latest]
+      fail-fast: false
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: ./
+        id: setup_sdk
+        with:
+          cache: false
+      - name: Test clang is installed
+        run: "${OHOS_SDK_NATIVE}/llvm/bin/clang" --version
+        shell: bash
+

README.md

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+# OHOS SDK
+
+This is a simple GitHub action to automatically download and install the OpenHarmony SDK,
+so you can use it in your GitHub actions workflow.

action.yml

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+name: 'Setup OpenHarmony SDK'
+description: 'Download an install the OpenHarmony SDK'
+inputs:
+  version:
+    description: 'OpenHarmony SDK release version'
+    required: false
+    default: '4.1'
+  cache:
+    description: "Whether to cache the SDK or not"
+    required: false
+    default: true
+outputs:
+  sdk-path:
+    description: "Directory of the OpenHarmony SDK"
+    value: ${{ steps.set_outputs.outputs.sdk-path }}
+  ohos_sdk_native:
+    description: "The `native` directory inside the OpenHarmony SDK"
+    value: ${{ steps.set_outputs.outputs.ohos_sdk_native }}
+  sdk-version:
+    description: "Specific version of the OpenHarmony SDK (e.g. 4.1.7.5)"
+    value: ${{ steps.set_outputs.outputs.sdk-version }}
+  api-version:
+    description: "OpenHarmony API version of the SDK"
+    api-version: ${{ steps.set_outputs.outputs.api-version }}
+runs:
+  using: "composite"
+  steps:
+    - name: Set Greeting
+      run: echo "Hello ${{ inputs.version }}."
+      shell: bash
+    - name: Cache SDK
+      id: cache
+      uses: actions/cache@v4
+      with:
+        path: ohos-sdk
+        key: ${{ runner.os }}-ohos-sdk-${{ inputs.version }}
+      if: ${{ inputs.cache }} == 'true'
+    - name: Download and install OpenHarmony SDK
+      id: install_ohos_sdk
+      run: ./install_ohos_sdk.sh
+      shell: bash
+      if: ${{ inputs.cache }} != 'true' || steps.cache.outputs.cache-hit != 'true'
+      env:
+        INPUT_VERSION: "${{ inputs.version }}"
+    - name: Set Outputs
+      id: set_outputs
+      shell: bash
+      run: |
+        echo "sdk-path=$HOME/ohos-sdk" >> "$GITHUB_OUTPUT"
+        OHOS_SDK_NATIVE="$HOME/ohos-sdk/*/native"
+        echo "OHOS_SDK_NATIVE=${OHOS_SDK_NATIVE}" >> "$GITHUB_ENV"
+        echo "ohos_sdk_native=${OHOS_SDK_NATIVE}" >> "$GITHUB_OUTPUT"
+        cd "${OHOS_SDK_NATIVE}"
+        SDK_VERSION="$(jq .version < oh-uni-package.json )"
+        API_VERSION="$(jq .apiVersion < oh-uni-package.json )"  
+        echo "sdk-version=${SDK_VERSION}" >> "$GITHUB_OUTPUT"
+        echo "api-version=${API_VERSION}" >> "$GITHUB_OUTPUT"
+

install_ohos_sdk.sh

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+#!/usr/bin/env bash
+
+set -eu
+
+: "${INPUT_VERSION:?INPUT_VERSION needs to be set}"
+
+# https://repo.huaweicloud.com/openharmony/os/4.0-Release/ohos-sdk-windows_linux-public.tar.gz
+
+URL_BASE="https://repo.huaweicloud.com/openharmony/os"
+
+if [[ "$OSTYPE" == "linux-gnu"* ]]; then
+        OS_FILENAME="ohos-sdk-windows_linux-public.tar.gz"
+        OS=linux
+elif [[ "$OSTYPE" == "darwin"* ]]; then
+    if [[ $(uname -m) == 'arm64' ]]; then
+        OS_FILENAME="L2-SDK-MAC-M1-PUBLIC.tar.gz"
+    else
+        OS_FILENAME="ohos-sdk-mac-public.tar.gz"
+    fi
+   OS=mac
+elif [[ "$OSTYPE" == "cygwin" ]] || [[ "$OSTYPE" == "msys" ]] || [[ "$OSTYPE" == "win32" ]]; then
+        OS_FILENAME="ohos-sdk-windows_linux-public.tar.gz"
+        OS=windows
+else
+        echo "Unknown OS type. The OHOS SDK is only available for Windows, Linux and Mqd."
+fi
+
+DOWNLOAD_URL="${URL_BASE}/${INPUT_VERSION}-Release/${OS_FILENAME}"
+
+echo "Downloading OHOS SDK from ${DOWNLOAD_URL}"
+
+curl --fail -L -o "${HOME}/openharmony-sdk.tar.gz" "${DOWNLOAD_URL}"
+cd "${HOME}"
+if [[ "${OS}" == "linux" ]]; then
+    tar -xvf openharmony-sdk.tar.gz --strip-components=2
+else
+    tar -xvf openharmony-sdk.tar.gz
+fi
+rm openharmony-sdk.tar.gz
+cd ohos-sdk
+
+if [[ "${OS}" == "linux" ]]; then
+    rm -rf windows
+    cd linux
+elif [[ "${OS}" == "windows" ]]; then
+    rm -rf linux
+    cd windows
+else
+    cd darwin
+fi
+
+# Todo: expose available components via an input variable.
+# For now just extract native, to save disk space
+
+unzip native-*.zip
+rm ./*.zip
+
+cd native