Implement download_iso for Windows & macOS

README.md

@@ -259,15 +259,16 @@ You can also use `quickget` with options to:
 ``` shell
     # show an OS ISO download URL for {os} {release} [edition] 
     quickget --show-iso-url fedora 38 Silverblue   
-    # test if and OS ISO is available for {os} {release} [edition]
+    # test if an OS ISO is available for {os} {release} [edition]
     quickget --test-iso-url nixos 23.05 plasma5
     # open an OS distribution homepage in a browser
     quickget --open-distro-homepage  ubuntu-mate
+    # Only download image file into current directory, without creating VM
+    quickget --download-iso elementary 7.1
 ```
 
-The `--show-iso-url` and `--test-iso-url` options **do not** work for
+The `--show-iso-url`, `--test-iso-url`, and `--download-iso` options are fully
-`Windows` (`quickget` will begin downloading the requested release and
+functional for all operating systems, including Windows and macOS.
-edition of windows)
 
 ## Other Operating Systems
 
@@ -462,7 +463,7 @@ There are some considerations when running macOS via Quickemu.
     -   Big Sur
     -   Monterey
     -   Ventura
-    -   Sonoma (Not recommended)
+    -   Sonoma
 -   `quickemu` will automatically download the required
     [OpenCore](https://github.com/acidanthera/OpenCorePkg) bootloader
     and OVMF firmware from [OSX-KVM](https://github.com/kholia/OSX-KVM).

quickget

@@ -1764,29 +1764,35 @@ function get_macos() {
         wget --spider --header "Host: oscdn.apple.com" --header "Connection: close" --header "User-Agent: InternetRecovery/1.0" --header "Cookie: AssetToken=${downloadSession}" "${downloadLink}"
         wget --spider --header "Host: oscdn.apple.com" --header "Connection: close" --header "User-Agent: InternetRecovery/1.0" --header "Cookie: AssetToken=${chunkListSession}" "${chunkListLink}"
 	    exit 0
-    fi
+    elif [ "${download_iso}" == 'on' ]; then
-
-    echo Downloading macOS firmware
-    web_get "${OpenCore_qcow2}" "${VM_PATH}"
-    web_get "${OVMF_CODE}" "${VM_PATH}"
-    if [ ! -e "${VM_PATH}/OVMF_VARS-1920x1080.fd" ]; then
-        web_get "${OVMF_VARS}" "${VM_PATH}"
-    fi
-
-    if [ ! -e "${VM_PATH}/RecoveryImage.chunklist" ]; then
         echo "Downloading macOS ${RELEASE} from ${downloadLink}"
         web_get "${downloadLink}" "${VM_PATH}" RecoveryImage.dmg --header "Host: oscdn.apple.com" --header "Connection: close" --header "User-Agent: InternetRecovery/1.0" --header "Cookie: AssetToken=${downloadSession}"
-        curl --progress-bar "${chunkListLink}" -o "${VM_PATH}/RecoveryImage.chunklist" --header "Host: oscdn.apple.com" --header "Connection: close" --header "User-Agent: InternetRecovery/1.0" --header "Cookie: AssetToken=${chunkListSession}"
+        curl --progress-bar "${chunkListLink}" -o RecoveryImage.chunklist --header "Host: oscdn.apple.com" --header "Connection: close" --header "User-Agent: InternetRecovery/1.0" --header "Cookie: AssetToken=${chunkListSession}"
+        VM_PATH="$(pwd)"
+
+    else
+        echo "Downloading macOS firmware"
+        web_get "${OpenCore_qcow2}" "${VM_PATH}"
+        web_get "${OVMF_CODE}" "${VM_PATH}"
+        if [ ! -e "${VM_PATH}/OVMF_VARS-1920x1080.fd" ]; then
+            web_get "${OVMF_VARS}" "${VM_PATH}"
+        fi
+
+        if [ ! -e "${VM_PATH}/RecoveryImage.chunklist" ]; then
+            echo "Downloading macOS ${RELEASE} from ${downloadLink}"
+            web_get "${downloadLink}" "${VM_PATH}" RecoveryImage.dmg --header "Host: oscdn.apple.com" --header "Connection: close" --header "User-Agent: InternetRecovery/1.0" --header "Cookie: AssetToken=${downloadSession}"
+            curl --progress-bar "${chunkListLink}" -o "${VM_PATH}/RecoveryImage.chunklist" --header "Host: oscdn.apple.com" --header "Connection: close" --header "User-Agent: InternetRecovery/1.0" --header "Cookie: AssetToken=${chunkListSession}"
+        fi
     fi
 
     if [ $skipVerification != true ]; then
         if ! python3 "${CHUNKCHECK}" "${VM_PATH}" 2> /dev/null; then
-            echo Verification failed.
+            echo "Verification failed."
             exit 1
         fi
-        echo Verified macOS ${RELEASE} image using chunklist.
+        echo "Verified macOS ${RELEASE} image using chunklist."
     else
-        echo Skipping verification of image.
+        echo "Skipping verification of image."
     fi
 
     if [ -e "${VM_PATH}/RecoveryImage.dmg" ] && [ ! -e "${VM_PATH}/RecoveryImage.img" ]; then
@@ -1794,6 +1800,7 @@ function get_macos() {
         qemu-img convert "${VM_PATH}/RecoveryImage.dmg" -O raw "${VM_PATH}/RecoveryImage.img" 2>/dev/null
     fi
 
+    rm "${VM_PATH}/RecoveryImage.dmg" "${VM_PATH}/RecoveryImage.chunklist"
     make_vm_config RecoveryImage.img
 }
 
@@ -2734,6 +2741,10 @@ function download_windows() {
 function get_windows() {
     download_windows "${RELEASE}"
 
+    if [ "${download_iso}" == 'on' ]; then
+        exit 0
+    fi
+
     echo "Downloading VirtIO drivers..."
     web_get "https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/stable-virtio/virtio-win.iso" "${VM_PATH}"