Initial commit

1 files changed, 172 insertions, 0 deletions

diff --git a/qemu-helper.sh b/qemu-helper.sh
new file mode 100755
index 0000000..0d38aba
--- /dev/null
+++ b/qemu-helper.sh
@@ -0,0 +1,172 @@
+#!/bin/bash
+
+# Created By: srdusr
+# Created On: Wed 02 Aug 2023 16:16:21 PM CAT
+# Project: QEMU setup/opener helper wrapper script
+
+# Set global variables for VM parameters
+ram_size="4G"
+
+# Function to prompt user for VM parameters
+function get_vm_parameters() {
+    read -p "Enter VM name (default: vm): " vm_name
+    vm_name=${vm_name:-vm}
+
+    # Set the default ISO file path to ~/machines/images
+    default_iso_path="$HOME/machines/images"
+
+    # Generate completions for ISO and IMG files in the images directory
+    COMPREPLY=()
+    local files=$(compgen -G "$default_iso_path/*.{iso,img}" -o plusdirs)
+    for file in $files; do
+        COMPREPLY+=("$file")
+    done
+
+    # Use read with -i and -e options for tab-completion
+    read -ep "Enter ISO file path (default: $default_iso_path): " -i "$default_iso_path" iso_path
+
+    # Manually expand the ~ to the user's home directory
+    iso_path=$(eval echo "$iso_path")
+
+    # Validate the user input
+    while [ ! -f "$iso_path" ]; do
+        read -ep "Invalid file path. Enter a valid ISO file path: " iso_path
+    done
+
+    # Check if the selected file is an IMG file
+    if [[ "$iso_path" == *.img ]]; then
+        guest_os="windows"
+    else
+        guest_os="linux"
+    fi
+
+    # Show available disk space before asking for disk image size
+    echo "Available disk space:"
+    df -h "$vm_images_path"
+
+    read -p "Enter disk image size in GB (default: 10G): " disk_size
+    disk_size=${disk_size:-10G}
+
+    read -p "Enter RAM size in GB (default: 4G): " ram_size
+    ram_size=${ram_size:-4G}
+
+    # Check if the RAM size is in the correct format (e.g., "4G")
+    while ! [[ $ram_size =~ ^[0-9]+[kKmMgGtTpPeE]$ ]]; do
+        read -p "Invalid RAM size format. Enter RAM size in GB (e.g., 4G): " ram_size
+    done
+
+    read -p "Enter number of CPU cores (default: 2): " cpu_cores
+    cpu_cores=${cpu_cores:-2}
+}
+
+
+# Function to list available VMs
+function list_vms() {
+    echo "Available VMs:"
+    for vm_file in "$vm_images_path"/*.qcow2; do
+        vm=$(basename "$vm_file" .qcow2)
+        echo "  - $vm"
+    done
+}
+
+# Function to list available ISO and IMG files in the images directory
+function list_iso_img_files() {
+    echo "Available ISO and IMG files in $iso_images_path:"
+    iso_img_files=()
+    while IFS= read -r -d $'\0' file; do
+        iso_img_files+=("$file")
+    done < <(find "$iso_images_path" -type f \( -iname \*.iso -o -iname \*.img \) -print0)
+
+    for ((i = 0; i < ${#iso_img_files[@]}; i++)); do
+        echo "  $((i + 1)). ${iso_img_files[i]##*/}"
+    done
+}
+
+# Function to check if VM is already running
+function is_vm_running() {
+    vm_name=$1
+    if ps aux | grep -v grep | grep -q "[q]emu-system-x86_64.*$vm_name"; then
+        return 0
+    else
+        return 1
+    fi
+}
+
+# Function to start VM
+function start_vm() {
+    vm_name=$1
+    is_vm_running "$vm_name"
+    if [ $? -eq 0 ]; then
+        echo "VM '$vm_name' is already running."
+        return
+    fi
+
+    # VM parameters
+    qemu_cmd="qemu-system-x86_64 -enable-kvm -machine type=q35 -m $ram_size -cpu host -smp 2 -vga virtio"
+    qemu_cmd+=" -device qemu-xhci -device usb-tablet -device usb-kbd -device virtio-net,netdev=user0 -netdev user,id=user0,hostfwd=tcp::5555-:22"
+    qemu_cmd+=" -cdrom \"$iso_path\" -drive file=\"$vm_images_path/$vm_name.qcow2\",index=0,media=disk,if=virtio"
+    
+    if [[ $guest_os == "windows" ]]; then
+        qemu_cmd+=" -drive file=\"$iso_images_path/virtio-win.iso\",index=3,media=cdrom"
+    fi
+    
+    qemu_cmd+=" -boot menu=on"
+    qemu_cmd+=" -net nic -net user,hostname=$vm_name -name \"$vm_name\""
+
+    echo "Starting VM: $vm_name"
+    eval "$qemu_cmd"
+}
+
+# Main script starts here
+vm_images_path="$HOME/machines/vm"
+iso_images_path="$HOME/machines/images"
+
+# Check if directories exist
+mkdir -p "$vm_images_path"
+mkdir -p "$iso_images_path"
+
+# List available VMs
+list_vms
+
+# List available ISO and IMG files in the images directory
+list_iso_img_files
+
+# Ask the user if they want to use an existing VM or create a new one
+read -p "Do you want to use an existing VM? (y/n): " use_existing_vm
+if [[ $use_existing_vm =~ ^[Yy]$ ]]; then
+    read -p "Enter the name of the existing VM: " existing_vm_name
+    while [ ! -f "$vm_images_path/$existing_vm_name.qcow2" ]; do
+        echo "VM '$existing_vm_name' does not exist."
+        read -p "Enter a valid existing VM name: " existing_vm_name
+    done
+    vm_name=$existing_vm_name
+else
+    # Prompt user for VM parameters
+    get_vm_parameters
+
+    # Check if VM already exists
+    if [ -f "$vm_images_path/$vm_name.qcow2" ]; then
+        read -p "VM '$vm_name' already exists. Do you want to start it? (y/n): " start_vm_choice
+        if [[ $start_vm_choice =~ ^[Yy]$ ]]; then
+            start_vm "$vm_name"
+            exit 0
+        fi
+    else
+        # Create new VM
+        echo "Creating new VM: $vm_name"
+        qemu-img create -f qcow2 "$vm_images_path/$vm_name.qcow2" "$disk_size"
+        start_vm "$vm_name"
+        exit 0
+    fi
+fi
+
+# If an existing VM is selected, ask if the user wants to modify its parameters
+read -p "Do you want to modify the VM parameters? (y/n): " modify_vm_params
+if [[ $modify_vm_params =~ ^[Yy]$ ]]; then
+    get_vm_parameters
+fi
+
+# Start the VM
+start_vm "$vm_name"
+
+echo "Script execution completed."