#!/usr/bin/env bash
# Reproduces rclone v1.70+ deadlock with --no-traverse when all files exist
# Usage: ./repro.sh [rclone-binary-path]

# Use provided rclone binary or default to system rclone
RCLONE="${1:-rclone}"

echo "Using rclone: $RCLONE"
echo "Version: $($RCLONE version | head -1)"
echo

# Create test directories
src=$(mktemp -d)
dst=$(mktemp -d)

# Create 200 test files (enough to trigger the ~100 file deadlock)
echo "Creating 200 test files..."
for i in {1..200}; do
    echo "content$i" > "$src/file$i.txt"
done

# Initial copy to establish destination
echo "Initial copy to destination..."
$RCLONE copy "$src/" "$dst/" --quiet

# Create file list
filelist=$(mktemp)
ls "$src" > "$filelist"

# This command deadlocks in v1.70+ when all files exist at destination
echo "Testing --no-traverse with all files existing (10s timeout)..."
timeout 10s $RCLONE copy "$src/" "$dst/" \
    --no-traverse \
    --files-from "$filelist" \
    --ignore-existing \
    --progress

if [ $? -eq 124 ]; then
    echo -e "\n❌ FAIL: Command timed out (deadlock detected)"
    exit 1
else
    echo -e "\n✅ PASS: Command completed successfully"
fi

# Cleanup
rm -rf "$src" "$dst" "$filelist"

Using rclone: rclone
Version: rclone v1.69.3

Creating 200 test files...
Initial copy to destination...
Testing --no-traverse with all files existing (10s timeout)...
Transferred:   	          0 B / 0 B, -, 0 B/s, ETA -
Checks:               200 / 200, 100%
Elapsed time:         0.0s

✅ PASS: Command completed successfully

Using rclone: rclone
Version: rclone v1.70.2

Creating 200 test files...
Initial copy to destination...
Testing --no-traverse with all files existing (10s timeout)...
Transferred:   	          0 B / 0 B, -, 0 B/s, ETA -
Checks:                 0 / 0, -, Listed 200
Elapsed time:         9.5s
❌ FAIL: Command timed out (deadlock detected)

Using rclone: ./rclone
Version: rclone v1.71.0-DEV

Creating 200 test files...
Initial copy to destination...
Testing --no-traverse with all files existing (10s timeout)...
Transferred:   	          0 B / 0 B, -, 0 B/s, ETA -
Checks:               200 / 200, 100%, Listed 200
Elapsed time:         0.0s

✅ PASS: Command completed successfully