Add comprehensive help documentation to versionbump.sh

versionbump.sh

@@ -1,16 +1,61 @@
 #!/bin/bash
 
 # versionbump.sh - Script to bump version numbers in the VERSION file and update all relevant files
-# Usage: ./versionbump.sh [major|minor|patch|set VERSION]
+# Usage: ./versionbump.sh [major|minor|patch|set VERSION|--help|-h]
 
 set -e
 
 VERSION_FILE="VERSION"
 DOCKER_COMPOSE_FILE="docker-compose.yml"
 
+# Function to display help information
+show_help() {
+    cat << EOF
+Ploughshares Version Management Tool
+===================================
+
+USAGE:
+    ./versionbump.sh [COMMAND]
+
+COMMANDS:
+    major           Bump the major version (X.y.z -> X+1.0.0)
+    minor           Bump the minor version (x.Y.z -> x.Y+1.0)
+    patch           Bump the patch version (x.y.Z -> x.y.Z+1)
+    set VERSION     Set the version to a specific value (e.g., set 1.2.3)
+    --help, -h      Display this help message
+
+DESCRIPTION:
+    This script manages the version number for the Ploughshares application.
+    It updates the version in multiple locations:
+    
+    1. The VERSION file (source of truth)
+    2. Console log messages in app.py
+    3. Docker Compose environment variables
+    
+    After running this script, you need to rebuild and restart the application
+    for the changes to take effect.
+
+EXAMPLES:
+    ./versionbump.sh major     # 1.2.3 -> 2.0.0
+    ./versionbump.sh minor     # 1.2.3 -> 1.3.0
+    ./versionbump.sh patch     # 1.2.3 -> 1.2.4
+    ./versionbump.sh set 1.5.0 # Set to specific version 1.5.0
+
+VERSION HISTORY:
+    The script maintains a log of version changes in version_history.log
+EOF
+}
+
+# Check if help is requested or no arguments provided
+if [ "$1" = "--help" ] || [ "$1" = "-h" ] || [ -z "$1" ]; then
+    show_help
+    exit 0
+fi
+
 # Check if VERSION file exists
 if [ ! -f "$VERSION_FILE" ]; then
     echo "Error: $VERSION_FILE does not exist."
+    echo "Run with --help for usage information."
     exit 1
 fi
 
@@ -48,6 +93,7 @@ update_version_everywhere() {
 if [ "$1" = "set" ]; then
     if [ -z "$2" ]; then
         echo "Error: No version specified. Usage: $0 set VERSION"
+        echo "Run with --help for usage information."
         exit 1
     fi
     NEW_VERSION="$2"
@@ -74,10 +120,8 @@ case "$1" in
         PATCH=$((PATCH + 1))
         ;;
     *)
-        echo "Usage: $0 [major|minor|patch|set VERSION]"
-        echo "Examples:"
-        echo "  $0 minor         # Bump minor version"
-        echo "  $0 set 1.2.3     # Set specific version"
+        echo "Error: Unknown command '$1'"
+        echo "Run with --help for usage information."
         exit 1
         ;;
 esac