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58 lines
1.4 KiB
58 lines
1.4 KiB
#!/bin/bash
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# Author: Tomas M. <http://www.slax.org/>
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usage()
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{
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echo ""
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echo "Convert directory to .sb compressed module"
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echo "Usage: $0 [source_directory.sb] [[target_file.sb]]"
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echo " If source_directory does not have .sb suffix and it is not 'squashfs-root',"
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echo " then the source_directory itself is included in the module and"
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echo " then the target_file.sb parameter is required."
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echo " If target_file.sb is not specified, the source_directory is erased"
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echo " and replaced by the newly generated module file."
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}
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P1="$(readlink -f "$1")"
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P2="$(readlink -f "$2")"
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if [ "$P1" = "$P2" ]; then
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P2=""
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fi
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SB=$(echo "$P1" | grep -o "[.]sb/*\$")
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if [ "$(echo "$P1" | grep -o "/squashfs-root/*\$")" != "" ]; then
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SB="true"
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fi
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if [ "$SB" = "" ]; then
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KEEP="-keep-as-directory"
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if [ "$P2" = "" ]; then
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usage
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exit 1
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fi
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else
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KEEP=""
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fi
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if [ ! -d "$P1" ]; then
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echo "Not a directory: $P1" >&2
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exit 2
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fi
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if [ "$P2" = "" ]; then
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TARGET="$P1".sb
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while [ -e "$TARGET" ]; do TARGET="$TARGET"x; done
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mksquashfs "$P1" "$TARGET" -comp xz -b 1024K -always-use-fragments $KEEP >/dev/null || exit 3
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umount "$P1" 2>/dev/null
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rm -Rf "$P1"
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mv "$TARGET" "$P1"
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else
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if [ -e "$P2" ]; then
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echo "Target exists: $P2" >&2
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exit 4
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fi
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mksquashfs "$P1" "$P2" -comp xz -b 1024K -always-use-fragments $KEEP >/dev/null
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fi
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