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emulate readlink -m #6

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emulate readlink -m #6

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31 changes: 31 additions & 0 deletions realpath.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -68,6 +68,37 @@ _canonicalize_file_path() {
(cd "$dir" 2>/dev/null && printf '%s/%s\n' "$(pwd -P)" "$file")
}

canonicalize_missing() {
local path dir

path=$1

if [ $(printf "%s" $path | cut -c 1) != "/" ]; then
path=$(printf "%s/%s" $(pwd) $path)
fi

path=$(printf "%s" $path | sed -e 's%^\./%%g' -e 's%/\./%/%g' -e ':begin' -e 's%\([^/]*\)/\.\./%%' -e 'tbegin')

{
old_IFS=$IFS
IFS=/
set $path
IFS=$old_IFS

dir='/'
for i in $@; do
if [ "X$i" = "X" ]; then
continue
fi

cd $dir
dir=$(printf "%s/%s" $dir $(resolve_symlinks $i))
done
}

printf "%s\n" $dir | sed -e 's%//%/%g' -e 's%^\./%%g' -e 's%/\./%/%g' -e ':begin' -e 's%\([^/]*\)/\.\./%%' -e 'tbegin'
}

# Optionally, you may also want to include:

### readlink emulation ###
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