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#!/bin/bash
# Verify the PAGER= suggestion is correct in "moor --help" output.
#
# Ref: https://github.com/walles/moor/issues/88
set -e -o pipefail
MOOR="$(realpath "$1")"
if ! [ -x "$MOOR" ]; then
echo ERROR: Not executable: "$MOOR"
exit 1
fi
echo Testing PAGER= suggestion in moor --help output...
WORKDIR="$(mktemp -d -t moor-path-help-test.XXXXXXXX)"
# Put a symlink to $MOOR first in the $PATH
ln -s "$MOOR" "$WORKDIR/moor"
echo "moor" >"$WORKDIR/expected"
# Extract suggested PAGER value from moor --help
unset PAGER
PATH="$WORKDIR" PAGER="" MOOR="" moor --help > "$WORKDIR/help-printout.txt"
cat "$WORKDIR/help-printout.txt" | grep "PAGER" | grep -v "is empty" | sed 's/.*[ =]//g' | sed s'/["]//g' >"$WORKDIR/actual"
# Ensure it matches the symlink we have in $PATH
cd "$WORKDIR"
if diff -u actual expected ; then
exit 0
fi
# Diff output already printed as part of the if statement ^
echo
env | sort
echo
echo Failing help text:
cat "$WORKDIR/help-printout.txt"
echo
echo "Actual: <$(cat "$WORKDIR/actual")>"
echo "Expected: <$(cat "$WORKDIR/expected")>"
exit 1
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