Files
zosbuilder/scripts/lib/components.sh
Jan De Landtsheer fb51f4eb4e fix: Alpine Rust toolchain compatibility
- Remove rustup dependency from Dockerfile (not available in Alpine)
- Update Rust environment setup to handle both rustup and system Rust
- Fix musl-gcc linker configuration for Alpine containers
- Support both GitHub Actions (rustup) and Alpine container (system) environments
2025-08-31 12:44:55 +02:00

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#!/bin/bash
# Component download and build system for ThreeFold Zero OS
# Source common functions
LIB_SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "${LIB_SCRIPT_DIR}/common.sh"
# Component configuration
RUST_TARGET="${RUST_TARGET:-x86_64-unknown-linux-musl}"
CARGO_TARGET_DIR="${CARGO_TARGET_DIR:-target}"
# Parse and process all components from sources.conf
function components_parse_sources_conf() {
local sources_file="$1"
local components_dir="$2"
local install_dir="${INSTALL_DIR:-${PROJECT_ROOT}/initramfs}"
section_header "Parsing Sources Configuration"
if [[ ! -f "$sources_file" ]]; then
log_error "Sources file not found: ${sources_file}"
return 1
fi
# Ensure components directory exists
safe_mkdir "$components_dir"
# Export install directory for build functions
export INSTALL_DIR="$install_dir"
log_info "Processing components from: ${sources_file}"
log_info "Components directory: ${components_dir}"
log_info "Install directory: ${install_dir}"
local component_count=0
# Process each line in sources.conf
while IFS=: read -r type name url version build_func extra; do
# Skip comments and empty lines
if [[ "$type" =~ ^[[:space:]]*# ]] || [[ -z "${type// }" ]]; then
continue
fi
# Trim whitespace
type=$(echo "$type" | xargs)
name=$(echo "$name" | xargs)
url=$(echo "$url" | xargs)
version=$(echo "$version" | xargs)
build_func=$(echo "$build_func" | xargs)
extra=$(echo "$extra" | xargs)
if [[ -z "$type" || -z "$name" || -z "$url" || -z "$version" || -z "$build_func" ]]; then
log_warn "Skipping invalid line: ${type}:${name}:${url}:${version}:${build_func}:${extra}"
continue
fi
((component_count++))
log_info "Processing component ${component_count}: ${name} (${type})"
# Download component
case "$type" in
"git")
components_download_git "$name" "$url" "$version" "$components_dir"
;;
"release")
components_download_release "$name" "$url" "$version" "$components_dir" "$extra"
;;
*)
log_error "Unknown component type: $type"
return 1
;;
esac
# Build and install component
components_build_component "$name" "$build_func" "$components_dir"
done < "$sources_file"
if [[ $component_count -eq 0 ]]; then
log_warn "No components found in sources configuration"
else
log_info "Processed ${component_count} components successfully"
fi
}
# Download Git repository
function components_download_git() {
local name="$1"
local url="$2"
local version="$3"
local components_dir="$4"
section_header "Downloading Git Component: ${name}"
local target_dir="${components_dir}/${name}"
log_info "Repository: ${url}"
log_info "Version/Branch: ${version}"
log_info "Target directory: ${target_dir}"
if [[ -d "$target_dir" ]]; then
log_info "Component ${name} already exists, updating..."
safe_execute cd "$target_dir"
safe_execute git fetch --all
safe_execute git checkout "$version"
safe_execute git pull origin "$version" 2>/dev/null || log_info "Already up to date"
else
log_info "Cloning ${name} from ${url}"
safe_execute git clone --depth 1 --branch "$version" "$url" "$target_dir"
fi
# Verify checkout
safe_execute cd "$target_dir"
local current_ref=$(git rev-parse HEAD)
log_info "Current commit: ${current_ref}"
log_info "Git component download complete: ${name}"
}
# Download release binary/archive
function components_download_release() {
local name="$1"
local url="$2"
local version="$3"
local components_dir="$4"
local extra="$5"
section_header "Downloading Release Component: ${name}"
local target_dir="${components_dir}/${name}"
local filename=$(basename "$url")
log_info "Release URL: ${url}"
log_info "Version: ${version}"
log_info "Target directory: ${target_dir}"
safe_mkdir "$target_dir"
# Download release
log_info "Downloading release: ${filename}"
safe_execute wget --progress=dot:giga -O "${target_dir}/${filename}" "$url"
# Verify download
if [[ ! -f "${target_dir}/${filename}" ]]; then
log_error "Failed to download release: ${filename}"
return 1
fi
local file_size=$(get_file_size "${target_dir}/${filename}")
log_info "Downloaded file size: ${file_size}"
# Handle extra options (like rename)
if [[ -n "$extra" ]]; then
components_process_extra_options "$target_dir" "$filename" "$extra"
fi
log_info "Release component download complete: ${name}"
}
# Process extra options for components
function components_process_extra_options() {
local target_dir="$1"
local filename="$2"
local extra="$3"
log_info "Processing extra options: ${extra}"
# Handle rename option
if [[ "$extra" =~ rename=(.+) ]]; then
local new_name="${BASH_REMATCH[1]}"
log_info "Renaming ${filename} to ${new_name}"
safe_execute mv "${target_dir}/${filename}" "${target_dir}/${new_name}"
fi
# Handle extract option for archives
if [[ "$extra" =~ extract ]]; then
log_info "Extracting archive: ${filename}"
safe_execute cd "$target_dir"
case "$filename" in
*.tar.gz|*.tgz)
safe_execute tar -xzf "$filename"
;;
*.tar.bz2|*.tbz2)
safe_execute tar -xjf "$filename"
;;
*.tar.xz|*.txz)
safe_execute tar -xJf "$filename"
;;
*.zip)
safe_execute unzip "$filename"
;;
*)
log_warn "Unknown archive format: ${filename}"
;;
esac
fi
}
# Build component using specified build function
function components_build_component() {
local name="$1"
local build_func="$2"
local components_dir="$3"
section_header "Building Component: ${name}"
local component_dir="${components_dir}/${name}"
if [[ ! -d "$component_dir" ]]; then
log_error "Component directory not found: ${component_dir}"
return 1
fi
# Change to component directory
safe_execute cd "$component_dir"
log_info "Build function: ${build_func}"
log_info "Working directory: $(pwd)"
# Check if build function exists
if ! declare -f "$build_func" >/dev/null; then
log_error "Build function not found: ${build_func}"
return 1
fi
# Call the specific build function
log_info "Executing build function: ${build_func}"
"$build_func" "$name" "$component_dir"
log_info "Component build complete: ${name}"
}
# Setup Rust environment for musl builds
function components_setup_rust_env() {
section_header "Setting Up Rust Environment"
# Check if we have rustup (Ubuntu/GitHub Actions) or system Rust (Alpine container)
if command_exists "rustup"; then
log_info "Using rustup for Rust toolchain management"
# Ensure musl target is installed
if ! rustup target list --installed | grep -q "$RUST_TARGET"; then
log_info "Installing Rust target: ${RUST_TARGET}"
safe_execute rustup target add "$RUST_TARGET"
else
log_info "Rust target already installed: ${RUST_TARGET}"
fi
# Set environment variables for rustup
export RUSTFLAGS="-C target-feature=+crt-static"
export CC_x86_64_unknown_linux_musl="musl-gcc"
export CARGO_TARGET_X86_64_UNKNOWN_LINUX_MUSL_LINKER="musl-gcc"
else
log_info "Using system Rust (Alpine) with musl"
# Verify musl-gcc is available
if ! command_exists "musl-gcc"; then
log_error "musl-gcc not found. Install with: apk add musl-dev"
return 1
fi
# Set environment variables for system Rust
export RUSTFLAGS="-C target-feature=+crt-static -C linker=musl-gcc"
export CC="musl-gcc"
export TARGET_CC="musl-gcc"
export CARGO_TARGET_X86_64_UNKNOWN_LINUX_MUSL_LINKER="musl-gcc"
fi
log_info "Rust environment configured for musl builds"
log_info "RUST_TARGET: ${RUST_TARGET}"
log_info "RUSTFLAGS: ${RUSTFLAGS}"
log_info "CC: ${CC:-system-default}"
}
# Build function for zinit (standard Rust build)
function build_zinit() {
local name="$1"
local component_dir="$2"
section_header "Building zinit with musl target"
components_setup_rust_env
log_info "Building zinit from: ${component_dir}"
# Build with musl target
safe_execute cargo build --release --target "$RUST_TARGET"
# Find and install binary
local binary_path="target/${RUST_TARGET}/release/zinit"
if [[ ! -f "$binary_path" ]]; then
log_error "zinit binary not found at: ${binary_path}"
return 1
fi
# Install to initramfs
safe_mkdir "${INSTALL_DIR}/sbin"
safe_execute cp "$binary_path" "${INSTALL_DIR}/sbin/zinit"
safe_execute chmod +x "${INSTALL_DIR}/sbin/zinit"
local binary_size=$(get_file_size "${INSTALL_DIR}/sbin/zinit")
log_info "Installed zinit binary (${binary_size}) to: ${INSTALL_DIR}/sbin/zinit"
}
# Build function for rfs (standard Rust build)
function build_rfs() {
local name="$1"
local component_dir="$2"
section_header "Building rfs with musl target"
components_setup_rust_env
log_info "Building rfs from: ${component_dir}"
# Build with musl target
safe_execute cargo build --release --target "$RUST_TARGET"
# Find and install binary
local binary_path="target/${RUST_TARGET}/release/rfs"
if [[ ! -f "$binary_path" ]]; then
log_error "rfs binary not found at: ${binary_path}"
return 1
fi
# Install to initramfs
safe_mkdir "${INSTALL_DIR}/usr/bin"
safe_execute cp "$binary_path" "${INSTALL_DIR}/usr/bin/rfs"
safe_execute chmod +x "${INSTALL_DIR}/usr/bin/rfs"
local binary_size=$(get_file_size "${INSTALL_DIR}/usr/bin/rfs")
log_info "Installed rfs binary (${binary_size}) to: ${INSTALL_DIR}/usr/bin/rfs"
}
# Build function for mycelium (special subdirectory build)
function build_mycelium() {
local name="$1"
local component_dir="$2"
section_header "Building mycelium with musl target (special directory)"
components_setup_rust_env
log_info "Building mycelium from: ${component_dir}"
# Change to myceliumd subdirectory (special requirement)
local myceliumd_dir="${component_dir}/myceliumd"
if [[ ! -d "$myceliumd_dir" ]]; then
log_error "myceliumd directory not found at: ${myceliumd_dir}"
return 1
fi
safe_execute cd "$myceliumd_dir"
log_info "Building in myceliumd subdirectory: $(pwd)"
# Build with musl target
safe_execute cargo build --release --target "$RUST_TARGET"
# Find and install binary (from target/x86.../release)
local binary_path="target/${RUST_TARGET}/release/mycelium"
if [[ ! -f "$binary_path" ]]; then
log_error "mycelium binary not found at: ${binary_path}"
return 1
fi
# Install to initramfs
safe_mkdir "${INSTALL_DIR}/usr/bin"
safe_execute cp "$binary_path" "${INSTALL_DIR}/usr/bin/mycelium"
safe_execute chmod +x "${INSTALL_DIR}/usr/bin/mycelium"
local binary_size=$(get_file_size "${INSTALL_DIR}/usr/bin/mycelium")
log_info "Installed mycelium binary (${binary_size}) to: ${INSTALL_DIR}/usr/bin/mycelium"
}
# Install function for corex (pre-built binary)
function install_corex() {
local name="$1"
local component_dir="$2"
section_header "Installing corex binary"
log_info "Installing corex from: ${component_dir}"
# Find the corex binary (may have been renamed)
local binary_path
if [[ -f "${component_dir}/corex" ]]; then
binary_path="${component_dir}/corex"
elif [[ -f "${component_dir}/corex-2.1.4-amd64-linux-static" ]]; then
binary_path="${component_dir}/corex-2.1.4-amd64-linux-static"
else
log_error "corex binary not found in: ${component_dir}"
return 1
fi
# Make executable and install
safe_execute chmod +x "$binary_path"
safe_mkdir "${INSTALL_DIR}/usr/bin"
safe_execute cp "$binary_path" "${INSTALL_DIR}/usr/bin/corex"
safe_execute chmod +x "${INSTALL_DIR}/usr/bin/corex"
local binary_size=$(get_file_size "${INSTALL_DIR}/usr/bin/corex")
log_info "Installed corex binary (${binary_size}) to: ${INSTALL_DIR}/usr/bin/corex"
}
# Verify all built components
function components_verify_installation() {
local install_dir="${INSTALL_DIR:-${PROJECT_ROOT}/initramfs}"
section_header "Verifying Component Installation"
# List of expected binaries and their locations
local expected_binaries=(
"sbin/zinit"
"usr/bin/rfs"
"usr/bin/mycelium"
"usr/bin/corex"
)
local missing_count=0
for binary in "${expected_binaries[@]}"; do
local full_path="${install_dir}/${binary}"
if [[ -f "$full_path" && -x "$full_path" ]]; then
local size=$(get_file_size "$full_path")
log_info "${binary} (${size})"
else
log_error "✗ Missing or not executable: ${binary}"
((missing_count++))
fi
done
if [[ $missing_count -eq 0 ]]; then
log_info "All components installed successfully"
return 0
else
log_error "${missing_count} components missing or invalid"
return 1
fi
}
# Clean component build artifacts
function components_cleanup() {
local components_dir="$1"
local keep_sources="${2:-false}"
section_header "Cleaning Component Build Artifacts"
if [[ "$keep_sources" == "true" ]]; then
log_info "Keeping source directories, cleaning build artifacts only"
# Clean Rust build artifacts
find "$components_dir" -name "target" -type d -exec rm -rf {} + 2>/dev/null || true
find "$components_dir" -name "Cargo.lock" -type f -delete 2>/dev/null || true
else
log_info "Removing all component directories"
safe_rmdir "$components_dir"
fi
log_info "Component cleanup complete"
}
# Export functions
export -f components_parse_sources_conf
export -f components_download_git components_download_release components_process_extra_options
export -f components_build_component components_setup_rust_env
export -f build_zinit build_rfs build_mycelium install_corex
export -f components_verify_installation components_cleanup