feat: Handle pre-release tags and fix shellcheck warning

Assign the pre-release tag value to the PRE_RELEASE_TAG variable when
parsing arguments for alpha and beta pre-releases. This resolves a
shellcheck warning about the variable being unused.

Also, include the PRE_RELEASE_TAG in the log output for clarity.

Author: CI/CD Tester

gh-release-manager.sh

@@ -0,0 +1,174 @@
+#!/bin/bash
+set -euo pipefail
+IFS=
+
+# --- MCP Validation Header ---
+# [MCP:REQUIRED] shellcheck validation
+# [MCP:REQUIRED] POSIX compliance check
+# [MCP:RECOMMENDED] Error handling coverage
+
+# === LOGGING SYSTEM ===
+# Reuse existing logging system from gh-issue-manager.sh
+
+# Initialize logging system
+log_init() {
+    # Set default values if not provided
+    ENABLE_LOGGING=${ENABLE_LOGGING:-false}
+    LOG_LEVEL=${LOG_LEVEL:-INFO}
+    LOG_FILE=${LOG_FILE:-./logs/gh-release-manager.log}
+    
+    # Create log directory if logging is enabled
+    if [ "$ENABLE_LOGGING" = "true" ]; then
+        mkdir -p "$(dirname "$LOG_FILE")"
+        log_info "log_init" "Logging initialized - Level: $LOG_LEVEL, File: $LOG_FILE"
+    fi
+}
+
+# Main logging function
+log_message() {
+    local level="$1"
+    local function_name="$2"
+    local message="$3"
+    local timestamp
+    local timestamp
+    timestamp=$(date '+%Y-%m-%d %H:%M:%S')
+    
+    # Check if logging is enabled
+    if [ "$ENABLE_LOGGING" != "true" ]; then
+        return 0
+    fi
+    
+    # Check log level
+    case "$LOG_LEVEL" in
+        "DEBUG") allowed_levels="DEBUG INFO WARN ERROR" ;;
+        "INFO")  allowed_levels="INFO WARN ERROR" ;;
+        "WARN")  allowed_levels="WARN ERROR" ;;
+        "ERROR") allowed_levels="ERROR" ;;
+        *) allowed_levels="INFO WARN ERROR" ;;
+    esac
+    
+    if [[ " $allowed_levels " =~ $level ]]; then
+        echo "[$timestamp] [$level] [$function_name] $message" >> "$LOG_FILE"
+        
+        # Also output to console for ERROR and WARN
+        if [ "$level" = "ERROR" ] || [ "$level" = "WARN" ]; then
+            echo "[$timestamp] [$level] [$function_name] $message" >&2
+        fi
+    fi
+}
+
+# Logging wrapper functions
+log_error() { log_message "ERROR" "$1" "$2"; }
+log_warn()  { log_message "WARN"  "$1" "$2"; }
+log_info()  { log_message "INFO"  "$1" "$2"; }
+log_debug() { log_message "DEBUG" "$1" "$2"; }
+
+# Performance timing function
+log_timing() {
+    local function_name="$1"
+    local start_time="$2"
+    local end_time
+    local duration
+    end_time=$(date +%s.%N)
+    duration=$(echo "$end_time - $start_time" | bc -l 2>/dev/null || echo "N/A")
+    log_info "$function_name" "Execution time: ${duration}s"
+}
+
+# === CORE FUNCTIONS ===
+
+# Global variables
+DRY_RUN=false
+VERSION_BUMP="patch"
+PRE_RELEASE=false
+PRE_RELEASE_TAG=""
+
+
+# Show usage information
+show_usage() {
+    cat << EOF
+GitHub Release Manager
+
+USAGE:
+    $0 [OPTIONS]
+
+OPTIONS:
+    -M, --major         Increment major version (X.y.z -> X+1.0.0)
+    -m, --minor         Increment minor version (x.Y.z -> x.Y+1.0)
+    -p, --patch         Increment patch version (x.y.Z -> x.y.Z+1) [default]
+    -a, --alpha TAG     Create alpha pre-release (x.y.z-alpha.TAG)
+    -b, --beta TAG      Create beta pre-release (x.y.z-beta.TAG)
+    -d, --dry-run       Show what would be done without making changes
+    -h, --help          Show this help message
+
+EXAMPLES:
+    $0                  # Create patch release (1.2.3 -> 1.2.4)
+    $0 -m               # Create minor release (1.2.3 -> 1.3.0)
+    $0 -M               # Create major release (1.2.3 -> 2.0.0)
+    $0 -a 1             # Create alpha release (1.2.3 -> 1.2.4-alpha.1)
+    $0 -d -m            # Dry run for minor release
+
+ENVIRONMENT VARIABLES:
+    ENABLE_LOGGING      Enable logging (default: false)
+    LOG_LEVEL          Log level: DEBUG, INFO, WARN, ERROR (default: INFO)
+    LOG_FILE           Log file path (default: ./logs/gh-release-manager.log)
+
+EOF
+}
+
+# Parse command line arguments
+parse_arguments() {
+    local start_time
+    start_time=$(date +%s.%N)
+    log_debug "parse_arguments" "Parsing command line arguments: $*"
+    
+    while [[ $# -gt 0 ]]; do
+        case $1 in
+            -M|--major)
+                VERSION_BUMP="major"
+                log_debug "parse_arguments" "Set version bump to major"
+                shift
+                ;;
+            -m|--minor)
+                VERSION_BUMP="minor"
+                log_debug "parse_arguments" "Set version bump to minor"
+                shift
+                ;;
+            -p|--patch)
+                VERSION_BUMP="patch"
+                log_debug "parse_arguments" "Set version bump to patch"
+                shift
+                ;;
+            -a|--alpha)
+                PRE_RELEASE=true
+                PRE_RELEASE_TAG="alpha.$2"
+                log_debug "parse_arguments" "Set pre-release to alpha.$2"
+                shift 2
+                ;;
+            -b|--beta)
+                PRE_RELEASE=true
+                PRE_RELEASE_TAG="beta.$2"
+                log_debug "parse_arguments" "Set pre-release to beta.$2"
+                shift 2
+                ;;
+            -d|--dry-run)
+                DRY_RUN=true
+                log_debug "parse_arguments" "Enabled dry-run mode"
+                shift
+                ;;
+            -h|--help)
+                show_usage
+                exit 0
+                ;;
+            *)
+                log_error "parse_arguments" "Unknown option: $1"
+                echo "Error: Unknown option: $1" >&2
+                show_usage
+                exit 1
+                ;;
+        esac
+    done
+    
+    log_info "parse_arguments" "Arguments parsed - Bump: $VERSION_BUMP, Pre-release: $PRE_RELEASE, Pre-release Tag: $PRE_RELEASE_TAG, Dry-run: $DRY_RUN"
+    log_timing "parse_arguments" "$start_time"
+}
+