#!/bin/bash

# Manual smoke test for the bin/finalize source/git buildpack path.

# Simulates what bin/finalize does: build javaexec into a temp dir and pass

# the path via JAVAEXEC_BINARY_PATH. Verifies the binary builds, that

# InstallJavaexecLauncher picks up the override, and that javaexec tokenizes

# JAVA_OPTS correctly when actually invoked.

set -euo pipefail

BUILDPACK_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)

cd "$BUILDPACK_DIR"

tmpdir=$(mktemp -d)

trap 'rm -rf "$tmpdir"' EXIT

echo "==> [1/4] Build javaexec from source (as bin/finalize now does)"

go build -mod=vendor -o "$tmpdir/javaexec" ./src/java/javaexec/cli

echo " OK: $tmpdir/javaexec ($(wc -c < "$tmpdir/javaexec") bytes)"

echo ""

echo "==> [2/4] Build finalize from source"

go build -mod=vendor -o "$tmpdir/finalize" ./src/java/finalize/cli

echo " OK: $tmpdir/finalize"

echo ""

echo "==> [3/4] Unit tests: InstallJavaexecLauncher with JAVAEXEC_BINARY_PATH override"

go test ./src/java/finalize/ -count=1 -v -run "javaexec launcher" 2>&1 | grep -E "PASS|FAIL|RUN|---"

echo ""

echo "==> [4/4] Tokenization smoke test: run javaexec with a fake java binary"

# Fake java: prints each received argument on its own line.

cat > "$tmpdir/fake-java" << 'EOF'

#!/bin/bash

printf '%s\n' "$@"

EOF

chmod +x "$tmpdir/fake-java"

# Quoted value with spaces → one token; cron expr with * → literal; $(...) → not executed.

JAVA_OPTS='-Dfoo="bar baz" -DcronSched="0 */7 * * * *" -Dwhere=$(hostname)' \

"$tmpdir/javaexec" "$tmpdir/fake-java" -jar app.jar 2>/dev/null > "$tmpdir/actual.txt"

expected="-Dfoo=bar baz

-DcronSched=0 */7 * * * *

-Dwhere=\$(hostname)

-jar

app.jar"

actual=$(cat "$tmpdir/actual.txt")

if [ "$actual" = "$expected" ]; then

echo " OK: all tokens correct"

else

echo " FAIL: unexpected output"

echo " expected:"

printf '%s\n' "$expected" | sed 's/^/ /'

echo " got:"

printf '%s\n' "$actual" | sed 's/^/ /'

exit 1

fi

echo ""

echo "PASS: source/git buildpack path works."

echo " bin/finalize builds javaexec and passes it via JAVAEXEC_BINARY_PATH."

echo " javaexec tokenizes JAVA_OPTS correctly without shell execution."