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#!/usr/bin/env bash |
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################################################################################ |
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# Setup SDKMAN JDK Integration with /usr/libexec/java_home |
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################################################################################ |
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# This script configures macOS to recognize SDKMAN-installed JDKs through |
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# /usr/libexec/java_home by creating a proper directory structure and symlink |
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# in /Library/Java/JavaVirtualMachines. |
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# |
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# Usage: |
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# ./setup_sdkman_java_home.sh [install|uninstall|verify|help] |
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# |
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# Options: |
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# install - Set up the SDKMAN JDK integration (default) |
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# uninstall - Remove the SDKMAN JDK integration |
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# verify - Check if the setup is working correctly |
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# help - Display this help message |
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# |
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# Requirements: |
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# - macOS |
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# - SDKMAN installed with at least one JDK |
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# - sudo privileges |
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################################################################################ |
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set -eo pipefail |
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# Constants (temporarily disable -u for BASH_SOURCE check) |
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readonly SCRIPT_NAME="$(basename "${BASH_SOURCE[0]:-install.sh}")" |
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readonly SCRIPT_VERSION="1.0.0" |
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# Re-enable unbound variable checking |
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set -u |
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readonly TARGET_DIR="/Library/Java/JavaVirtualMachines/sdkman-current" |
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readonly CONTENTS_DIR="${TARGET_DIR}/Contents" |
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readonly HOME_LINK="${CONTENTS_DIR}/Home" |
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readonly PLIST_FILE="${CONTENTS_DIR}/Info.plist" |
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# Colors for output |
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readonly RED='\033[0;31m' |
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readonly GREEN='\033[0;32m' |
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readonly YELLOW='\033[1;33m' |
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readonly BLUE='\033[0;34m' |
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readonly BOLD='\033[1m' |
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readonly NC='\033[0m' # No Color |
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# Cleanup on error - silently exit (specific errors are already shown) |
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cleanup() { |
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local exit_code=$? |
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# Exit silently - specific error messages are already displayed |
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exit $exit_code |
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} |
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trap cleanup EXIT |
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################################################################################ |
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# Utility Functions |
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################################################################################ |
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# Print colored messages |
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print_header() { |
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echo -e "\n${BOLD}${BLUE}===${NC} ${BOLD}$1${NC} ${BOLD}${BLUE}===${NC}\n" |
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} |
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success() { |
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echo -e "${GREEN}✓${NC} $1" |
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} |
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info() { |
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echo -e "${BLUE}ℹ${NC} $1" |
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} |
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warn() { |
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echo -e "${YELLOW}⚠${NC} $1" |
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} |
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error() { |
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echo -e "${RED}✗${NC} $1" >&2 |
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} |
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# Check if running on macOS |
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check_macos() { |
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if [[ "$(uname -s)" != "Darwin" ]]; then |
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error "This script only works on macOS" |
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exit 1 |
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fi |
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} |
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# Check if SDKMAN is installed |
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check_sdkman() { |
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local sdkman_dir="${SDKMAN_DIR:-$HOME/.sdkman}" |
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if [[ ! -d "$sdkman_dir" ]]; then |
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error "SDKMAN not found at $sdkman_dir" |
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info "Install SDKMAN from: https://sdkman.io/install" |
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exit 1 |
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fi |
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success "SDKMAN found at $sdkman_dir" |
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} |
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# Get SDKMAN current JDK path |
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get_sdkman_current_jdk() { |
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local sdkman_dir="${SDKMAN_DIR:-$HOME/.sdkman}" |
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local current_jdk="${sdkman_dir}/candidates/java/current" |
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if [[ ! -e "$current_jdk" ]]; then |
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error "No current JDK set in SDKMAN" |
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info "Install a JDK with: sdk install java" |
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info "Or set current with: sdk use java <version>" |
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exit 1 |
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fi |
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# Resolve symlink to get actual JDK path |
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local actual_jdk |
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actual_jdk="$(readlink "$current_jdk" 2>/dev/null || echo "$current_jdk")" |
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echo "$current_jdk" |
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} |
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# Get JDK version from SDKMAN |
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get_jdk_version() { |
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local jdk_path="$1" |
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# Source SDKMAN and get current version |
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local sdkman_init="${SDKMAN_DIR:-$HOME/.sdkman}/bin/sdkman-init.sh" |
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if [[ -f "$sdkman_init" ]]; then |
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# Temporarily disable -u for sourcing SDKMAN and calling sdk (they have undefined variables) |
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set +u |
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# shellcheck source=/dev/null |
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source "$sdkman_init" 2>/dev/null || true |
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local version |
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version="$(sdk current java 2>/dev/null | grep -oE '[0-9]+\.[0-9]+\.[0-9]+[^[:space:]]*' || echo "unknown")" |
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set -u |
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echo "$version" |
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else |
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echo "unknown" |
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fi |
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} |
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# Get JDK vendor from path |
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get_jdk_vendor() { |
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local jdk_path="$1" |
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local vendor="SDKMAN" |
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# Extract vendor from path if possible (e.g., 21.0.9-amzn -> Amazon) |
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if [[ "$jdk_path" =~ -([a-z]+)$ ]]; then |
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local vendor_code="${BASH_REMATCH[1]}" |
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case "$vendor_code" in |
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amzn) vendor="Amazon Corretto" ;; |
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tem) vendor="Eclipse Temurin" ;; |
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zulu) vendor="Azul Zulu" ;; |
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graal*) vendor="GraalVM" ;; |
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liberica) vendor="BellSoft Liberica" ;; |
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sapmchn) vendor="SAP Machine" ;; |
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*) vendor="SDKMAN ($vendor_code)" ;; |
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esac |
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fi |
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echo "$vendor" |
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} |
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# Check if setup already exists |
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check_existing_setup() { |
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[[ -d "$TARGET_DIR" ]] |
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} |
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# Verify sudo access |
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verify_sudo() { |
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# Try non-interactive sudo first |
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if sudo -n true 2>/dev/null; then |
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# Already authenticated |
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# Keep sudo alive |
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while true; do sudo -n true; sleep 60; kill -0 "$$" || exit; done 2>/dev/null & |
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return 0 |
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fi |
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# Check if running non-interactively |
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if ! [ -t 0 ]; then |
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error "This script requires sudo access" |
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echo "" |
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echo "When running via pipe, sudo cannot prompt for password." |
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echo "Please authenticate sudo first, then re-run:" |
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echo "" |
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echo " sudo -v" |
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echo " curl -fsSL https://gist.githubusercontent.com/abd3lraouf/1db9bf863144802733bfd29bb5dada87/raw/install.sh | bash -s install" |
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echo "" |
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echo "Or download and run directly:" |
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echo "" |
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echo " curl -O https://gist.githubusercontent.com/abd3lraouf/1db9bf863144802733bfd29bb5dada87/raw/install.sh" |
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echo " chmod +x install.sh" |
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echo " ./install.sh install" |
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exit 1 |
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fi |
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# Interactive mode - can prompt |
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if ! sudo -v; then |
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error "Sudo privileges required" |
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exit 1 |
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fi |
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# Keep sudo alive |
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while true; do sudo -n true; sleep 60; kill -0 "$$" || exit; done 2>/dev/null & |
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} |
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################################################################################ |
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# Installation Functions |
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################################################################################ |
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install_setup() { |
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print_header "Installing SDKMAN JDK Integration" |
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# Get SDKMAN JDK path |
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local sdkman_jdk |
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sdkman_jdk="$(get_sdkman_current_jdk)" |
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local jdk_version |
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jdk_version="$(get_jdk_version "$sdkman_jdk")" |
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local jdk_vendor |
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jdk_vendor="$(get_jdk_vendor "$sdkman_jdk")" |
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info "SDKMAN Current JDK: $sdkman_jdk" |
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info "Version: $jdk_version" |
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info "Vendor: $jdk_vendor" |
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# Check for existing setup |
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if check_existing_setup; then |
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warn "Existing setup found at $TARGET_DIR" |
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# Check if running interactively (can prompt) |
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if [ -t 0 ]; then |
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read -rp "Remove and reinstall? (y/N): " response |
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if [[ "$response" =~ ^[Yy]$ ]]; then |
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uninstall_setup |
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else |
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info "Installation cancelled" |
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exit 0 |
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fi |
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else |
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# Non-interactive: auto-reinstall |
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info "Non-interactive mode: auto-reinstalling..." |
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uninstall_setup |
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fi |
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fi |
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# Request sudo access |
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verify_sudo |
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# Create directory structure |
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info "Creating directory structure..." |
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sudo mkdir -p "$CONTENTS_DIR" |
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success "Created $CONTENTS_DIR" |
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# Create symlink |
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info "Creating symlink to SDKMAN JDK..." |
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sudo ln -sf "$sdkman_jdk" "$HOME_LINK" |
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success "Created symlink: $HOME_LINK -> $sdkman_jdk" |
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# Create Info.plist |
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info "Creating Info.plist..." |
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sudo tee "$PLIST_FILE" > /dev/null << EOF |
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<?xml version="1.0" encoding="UTF-8"?> |
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<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> |
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<plist version="1.0"> |
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<dict> |
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<key>CFBundleIdentifier</key> |
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<string>sdkman.current</string> |
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<key>CFBundleName</key> |
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<string>SDKMAN Current JDK</string> |
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<key>CFBundleVersion</key> |
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<string>${jdk_version}</string> |
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<key>JavaVM</key> |
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<dict> |
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<key>JVMPlatformVersion</key> |
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<string>9999</string> |
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<key>JVMVendor</key> |
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<string>${jdk_vendor}</string> |
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<key>JVMVersion</key> |
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<string>9999</string> |
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</dict> |
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</dict> |
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</plist> |
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EOF |
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success "Created Info.plist" |
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# Set proper permissions |
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info "Setting permissions..." |
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sudo chmod -R 755 "$TARGET_DIR" |
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success "Permissions set" |
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print_header "Installation Complete" |
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success "SDKMAN JDK integration installed successfully" |
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# Verify installation |
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verify_setup |
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} |
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################################################################################ |
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# Uninstallation Functions |
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################################################################################ |
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uninstall_setup() { |
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print_header "Uninstalling SDKMAN JDK Integration" |
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if ! check_existing_setup; then |
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warn "No existing setup found at $TARGET_DIR" |
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info "Nothing to uninstall" |
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return 0 |
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fi |
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# Request sudo access if not already verified |
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verify_sudo |
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info "Removing $TARGET_DIR..." |
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sudo rm -rf "$TARGET_DIR" |
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success "Removed SDKMAN JDK integration" |
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print_header "Uninstallation Complete" |
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} |
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################################################################################ |
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# Verification Functions |
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################################################################################ |
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verify_setup() { |
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print_header "Verifying Setup" |
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# Check if setup exists |
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if ! check_existing_setup; then |
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error "Setup not found at $TARGET_DIR" |
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info "Run with 'install' to set up the integration" |
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exit 1 |
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fi |
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# Check symlink |
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if [[ ! -L "$HOME_LINK" ]]; then |
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error "Symlink not found at $HOME_LINK" |
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exit 1 |
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fi |
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success "Symlink exists: $HOME_LINK" |
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# Check if symlink target exists |
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if [[ ! -e "$HOME_LINK" ]]; then |
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error "Symlink target does not exist" |
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local target |
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target="$(readlink "$HOME_LINK")" |
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error "Broken symlink: $HOME_LINK -> $target" |
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exit 1 |
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fi |
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local symlink_target |
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symlink_target="$(readlink "$HOME_LINK")" |
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success "Symlink target valid: $symlink_target" |
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# Check Info.plist |
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if [[ ! -f "$PLIST_FILE" ]]; then |
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error "Info.plist not found at $PLIST_FILE" |
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exit 1 |
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fi |
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success "Info.plist exists" |
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# Test /usr/libexec/java_home |
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info "Testing /usr/libexec/java_home..." |
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local java_home_output |
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if java_home_output=$(/usr/libexec/java_home 2>&1); then |
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success "/usr/libexec/java_home works" |
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echo -e "\n${BOLD}Output:${NC}" |
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echo "$java_home_output" |
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else |
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error "/usr/libexec/java_home failed" |
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echo "$java_home_output" |
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exit 1 |
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fi |
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# Show all available JVMs |
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echo -e "\n${BOLD}Available Java Virtual Machines:${NC}" |
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/usr/libexec/java_home -V 2>&1 || true |
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print_header "Verification Complete" |
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success "Setup is working correctly" |
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echo |
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info "Notes:" |
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echo " • When you change JDK with 'sdk use java <version>', the symlink" |
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echo " will automatically point to the new current version" |
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echo " • Xcode and other tools can now find Java using /usr/libexec/java_home" |
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echo " • The version is set to 9999 to ensure this JDK is always selected" |
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} |
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################################################################################ |
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# Help Function |
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################################################################################ |
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show_help() { |
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cat << 'EOF' |
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install.sh - Version 1.0.0 |
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DESCRIPTION |
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Configure macOS to recognize SDKMAN-installed JDKs through /usr/libexec/java_home |
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by creating a proper directory structure in /Library/Java/JavaVirtualMachines. |
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USAGE |
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install.sh [COMMAND] |
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COMMANDS |
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install Set up the SDKMAN JDK integration (default) |
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uninstall Remove the SDKMAN JDK integration |
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verify Verify the setup is working correctly |
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help Display this help message |
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EXAMPLES |
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# Install the integration |
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install.sh install |
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# Verify it's working |
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install.sh verify |
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# Remove the integration |
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install.sh uninstall |
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HOW IT WORKS |
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1. Creates /Library/Java/JavaVirtualMachines/sdkman-current/Contents/ |
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2. Symlinks Contents/Home to SDKMAN's current JDK |
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3. Creates Info.plist with proper metadata |
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4. Sets version to 9999 to ensure it's always selected |
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REQUIREMENTS |
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- macOS |
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- SDKMAN installed with at least one JDK |
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- sudo privileges |
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FILES CREATED |
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/Library/Java/JavaVirtualMachines/sdkman-current/ |
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/Library/Java/JavaVirtualMachines/sdkman-current/Contents/ |
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/Library/Java/JavaVirtualMachines/sdkman-current/Contents/Home (symlink) |
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/Library/Java/JavaVirtualMachines/sdkman-current/Contents/Info.plist |
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MORE INFO |
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- SDKMAN: https://sdkman.io/ |
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- Gist: https://gist.github.com/abd3lraouf/1db9bf863144802733bfd29bb5dada87 |
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EOF |
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} |
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################################################################################ |
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# Main Function |
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################################################################################ |
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main() { |
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# Check prerequisites |
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check_macos |
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# Parse command |
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local command="${1:-install}" |
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case "$command" in |
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install) |
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check_sdkman |
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install_setup |
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;; |
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uninstall) |
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uninstall_setup |
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;; |
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verify) |
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check_sdkman |
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verify_setup |
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;; |
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help|--help|-h) |
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show_help |
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;; |
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*) |
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error "Unknown command: $command" |
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echo |
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show_help |
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exit 1 |
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;; |
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esac |
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} |
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# Run main function |
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main "$@" |
