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#!/bin/bash
tempdir="$(mktemp -d --tmpdir mozilla-normalize.XXXXXXXXXXX)"
cat > "$tempdir/PKGBUILD"
for var in {make,check,}depends; do
# extract, normalize the data
{
sed -nr "
/^$var=\(/,/\)/{ # select the variable array
s/.*\(/ / # remove the opening 'var=(' bit
s/\).*// # remove the trailing ')' bit
s/\s+/\n /g # delimit array elements with '\n '
/./p # print array elements
}" \
| sed '/^\s*$/d' \
| sort -u
} < "$tempdir/PKGBUILD" > "$tempdir/$var"
# remove it from the file
sed -i -e "/^$var=(/i @$var@" -e "/^$var=/,/)/d" "$tempdir/PKGBUILD"
# re-insert it into the file
sed -i \
-e "/^@$var@/a$var=(" \
-e "/^@$var@/r$tempdir/$var" \
-e "/^@$var@/a)" \
-e "/^@$var@/d" \
"$tempdir/PKGBUILD"
done
# clean up whitespace
sed -ri 's/\s+$//' "$tempdir/PKGBUILD"
cat "$tempdir/PKGBUILD"
rm -rf "$tempdir"
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