50 lines
985 B
Bash
Executable File
50 lines
985 B
Bash
Executable File
#!/bin/bash
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# ============ R e q u i r e s package guestfs-tools
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if [ "$(id -u)" -ne 0 ]; then
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echo "This script must be run as root." >&2
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exit 1
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fi
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# ------ Settings
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TmpDir=/localdisk/tmp
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# ------ Settings
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mkdir -p ${TmpDir}
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file=${1}
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out_file=${2}
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SparseFile="${out_file}.sparse"
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ShrunkFile="${out_file}.shrunk"
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echo "Compressing file ${file}..."
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Cmd="/usr/bin/virt-sparsify"
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Cmd="${Cmd} --check-tmpdir=continue"
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Cmd="${Cmd} --tmp=${TmpDir}"
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Cmd="${Cmd} -q"
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Cmd="${Cmd} ${file} ${SparseFile}"
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Cmd="${Cmd} && /usr/bin/qemu-img convert"
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Cmd="${Cmd} -c"
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Cmd="${Cmd} -O qcow2"
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Cmd="${Cmd} ${SparseFile} ${ShrunkFile}"
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echo ${Cmd}
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eval ${Cmd}
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if [ ${?} -ne 0 ]
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then
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echo "Compression failed. Removing ${ShrunkFile}"
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rm ${ShrunkFile}
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else
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filesz=$(stat -c %s ${file})
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cfilesz=$(stat -c %s ${ShrunkFile})
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ratio=$((cfilesz * 100 / filesz))
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echo "Compression is successful. Compression ratio is ${ratio}%"
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rm ${SparseFile}
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fi
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echo "Done $0 $*"
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