OpenHarmony Build Skill

This skill provides comprehensive support for building the complete OpenHarmony codebase, including build execution, result verification, and error log analysis.

Build Environment

OpenHarmony uses the build.sh script located in the root directory for building. The build process requires:

• Build script: ./build.sh in OpenHarmony root directory
• Build tool: hb (Harmony Build) system
• Python environment: Python 3 from prebuilts
• Node.js: Version 14.21.1
• Output directory: out/ in OpenHarmony root

Build Execution

Navigate to Root Directory

Always execute builds from the OpenHarmony root directory. To find the root directory from any location in the tree:

# Method 1: Find directory containing .gn file
find_root() {
    local current_dir="$(pwd)"
    while [[ ! -f "$current_dir/.gn" ]]; do
        current_dir="$(dirname "$current_dir")"
        if [[ "$current_dir" == "/" ]]; then
            echo "Error: OpenHarmony root not found (no .gn file)"
            return 1
        fi
    done
    echo "$current_dir"
}

# Navigate to root
cd "$(find_root)"

Standard Build Commands

Full build for product (recommended command with cache enabled):

./build.sh --export-para PYCACHE_ENABLE:true --product-name rk3568 --ccache

Build specific component:

./build.sh --export-para PYCACHE_ENABLE:true --product-name rk3568 --build-target ace_engine --ccache

Build with specific target:

./build.sh --export-para PYCACHE_ENABLE:true --product-name <product> --build-target <target> --ccache

Common product names: rk3568, ohos-sdk, rk3588

Common build targets: ohos (default if omitted), ace_engine, ace_engine_test, unittest

SDK Build (Special Case)

IMPORTANT: SDK build has a special output directory structure.

Build OpenHarmony SDK:

./build.sh --export-para PYCACHE_ENABLE:true --product-name ohos-sdk --ccache

**SDK buil...