34 lines
931 B
Bash
34 lines
931 B
Bash
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#!/bin/bash
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# Capture a screenshot of a libvirt VM and convert to PNG for viewing.
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# Usage: vm-screenshot.sh [VM_NAME] [OUTPUT_PATH]
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VM_NAME="${1:-lab-pxe-test}"
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OUTPUT="${2:-/tmp/vm-screenshot.png}"
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PPM="/tmp/vm-screenshot-$$.ppm"
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if ! sudo virsh domstate "$VM_NAME" &>/dev/null; then
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echo "ERROR: VM '$VM_NAME' not found or not running" >&2
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exit 1
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fi
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sudo virsh screenshot "$VM_NAME" "$PPM" --screen 0 2>/dev/null
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if [ ! -f "$PPM" ]; then
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echo "ERROR: screenshot failed" >&2
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exit 1
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fi
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# Convert to PNG (ppm -> png)
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if command -v convert &>/dev/null; then
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convert "$PPM" "$OUTPUT"
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elif command -v ffmpeg &>/dev/null; then
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ffmpeg -y -i "$PPM" "$OUTPUT" 2>/dev/null
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elif command -v pnmtopng &>/dev/null; then
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pnmtopng "$PPM" > "$OUTPUT"
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else
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# fallback: just copy the PPM (Read tool can handle it)
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cp "$PPM" "${OUTPUT%.png}.ppm"
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OUTPUT="${OUTPUT%.png}.ppm"
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fi
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rm -f "$PPM"
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echo "$OUTPUT"
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