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|
#!/bin/sh
THIS=$1
ASH="ash -s"
BASH="bash --posix -s"
DASH="dash -s"
KSH="ksh -s"
POSH="posh -s"
ZSH="zsh -s"
ERROR=""
wrapper () {
$SH -- "$@" <<-'EOF'
### common.sh
outfile=
while getopts o: opt; do
case $opt in
o) outfile="$OPTARG" ;;
esac
done
shift $(($OPTIND - 1))
### postopts.sh
echo "Options passed to wrapper:"
[ -z "$outfile" ] || echo "|$outfile|"
echo "Arguments passed to wrapper:"
for arg; do
echo "|$arg|"
done
pandoc () {
echo "Arguments passed to wrappee:"
for arg; do
echo "|$arg|"
done
}
runpandoc
EOF
}
# Portable which(1).
pathfind () {
oldifs="$IFS"; IFS=':'
for _p in $PATH; do
if [ -x "$_p/$*" ] && [ -f "$_p/$*" ]; then
IFS="$oldifs"
return 0
fi
done
IFS="$oldifs"
return 1
}
check_results () {
if [ "$1" = "$2" ]; then
echo >&2 ok
return 0
else
echo >&2 failed
sed "s/^/\t/" >&2 <<EOF
Command line: '$3'
===> Expected:
$2
<=== Got:
$1
EOF
return 1
fi
}
for SH in "$BASH" "$DASH" "$KSH" "$ZSH"; do
CMD=${SH%% *}
echo >&2 " Testing with $CMD..."
if pathfind "$CMD"; then
if [ "$CMD" = "zsh" ]; then
# Zsh needs to be called as 'sh' to enable POSIX mode.
ln -s $(which zsh) ./sh
SH="./sh ${SH#* }"
trap 'err=$?; rm -f ./sh; exit $err' 0 1 2 3 13 15
fi
set -e
# Test 1
printf >&2 " test case 1... "
actual=$(wrapper -o "output file" "foo bar" -A "quux baz" -B)
expected=$(cat <<'EOF'
Options passed to wrapper:
|output file|
Arguments passed to wrapper:
|foo bar|
Arguments passed to wrappee:
|-A|
|quux baz|
|-B|
EOF
)
check_results "$actual" "$expected" \
'wrapper -o "output file" "foo bar" -A "quux baz" -B'
# Test 2
printf >&2 " test case 2... "
actual=$(wrapper -- -A "foo bar")
expected=$(cat <<'EOF'
Options passed to wrapper:
Arguments passed to wrapper:
Arguments passed to wrappee:
|-A|
|foo bar|
EOF
)
check_results "$actual" "$expected" 'wrapper -- -A "foo bar"'
# Test 3 (Test 1 with a redundant '--')
printf >&2 " test case 4... "
actual=$(wrapper -o "output file" "foo bar" -- -A "quux baz" -B)
expected=$(cat <<'EOF'
Options passed to wrapper:
|output file|
Arguments passed to wrapper:
|foo bar|
Arguments passed to wrappee:
|-A|
|quux baz|
|-B|
EOF
)
check_results "$actual" "$expected" \
'wrapper -o "output file" "foo bar" -- -A "quux baz" -B'
else
echo >&2 "Warning: cannot verify correctness with $CMD; shell not available"
fi
done
exit 0
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