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34 lines
758 B
Text
34 lines
758 B
Text
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#!/usr/bin/env sh
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IFS=''; set -fCu # safe mode: no split/glob = no quoting headaches
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let() { return $((!($1))); }
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# Automatically (re-)indent make...done blocks in a Mamfile.
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# Usage: Mamfile_indent <Mamfile >Mamfile.new
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#
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# Should work on all current POSIX compliant shells.
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# By Martijn Dekker <martijn@inlv.org>, 2021. Public domain.
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# Spacing per indentation level. Edit to change style.
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indent=' ' # one tab
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# Remove existing indentation, add new indentation.
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indentlvl=0
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sed 's/^[[:space:]]*//' \
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| while read -r line
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do case $line in
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'') continue ;;
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done*) let "indentlvl -= 1" ;;
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esac
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spc=
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i=0
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while let "(i += 1) <= indentlvl"
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do spc=$indent$spc
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done
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printf '%s\n' $spc$line
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case $line in
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make*) let "indentlvl += 1" ;;
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esac
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done
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