82 lines
2.0 KiB
Bash
Executable File
82 lines
2.0 KiB
Bash
Executable File
#!/bin/bash
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#
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# rar2zip conversion script
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# Based on: https://shkspr.mobi/blog/2016/12/converting-rar-to-zip-in-linux/
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#
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# Usage: rar2zip.sh file [file ...]
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if [ $# -eq 0 ]; then
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echo "Usage: $0 file.rar [file2.rar ...]"
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exit 1
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fi
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echo "Converting RARs to ZIPs"
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# Use RAM disk for temporary files.
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WORKDIR="/dev/shm/"
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# Cleanup function
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cleanup_temp() {
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if [ -n "$TEMPDIR" ] && [ -d "$TEMPDIR" ]; then
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rm -r "$TEMPDIR"
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fi
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}
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for INFILE in "$@"; do
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# Absolute path to old file
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OLDFILE=$(realpath "${INFILE}")
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# Get the file name without the extension
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BASENAME=$(basename "${OLDFILE%.*}")
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# Path for the file. The ".zip" file will be written there.
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DIRNAME=$(dirname "$OLDFILE")
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# Name of the .zip file
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NEWNAME="${DIRNAME}/$BASENAME.zip"
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if [ ! -e "${NEWNAME}" ]; then
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# Set name for the temp dir. This directory will be created under WORKDIR
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TEMPDIR=$(mktemp -p "$WORKDIR" -d)
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# Set up cleanup trap
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trap cleanup_temp EXIT INT TERM
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# Create a temporary folder for unRARed files
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echo "Extracting $OLDFILE"
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if ! rar x "$OLDFILE" "${TEMPDIR}/"; then
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echo "Error: Failed to extract $OLDFILE"
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cleanup_temp
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continue
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fi
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# Zip the files with maximum compression
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pushd "$TEMPDIR" > /dev/null
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if ! 7z a -tzip -mx=9 "$NEWNAME" ./*; then
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echo "Error: Failed to create ZIP for $BASENAME"
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popd > /dev/null
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cleanup_temp
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continue
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fi
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popd > /dev/null
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# Alternative. MUCH SLOWER, but better compression
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# 7z a -mm=Deflate -mfb=258 -mpass=15 -r "$NEWNAME" *
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# Preserve file modification time
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touch -r "$OLDFILE" "$NEWNAME"
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# Delete the temporary directory
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cleanup_temp
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trap - EXIT INT TERM
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# OPTIONAL. Safe-remove the old file
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#gio trash "$OLDFILE"
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else
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echo "${NEWNAME}: File exists!"
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fi
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done
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echo "Conversion Done"
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