remove_toolchains.sh

#!/bin/bash

# ⚠️ WARNING: DESTRUCTIVE TESTING UTILITY ⚠️
# This script REMOVES ALL Rust toolchains from your system!
#
# Purpose: Testing utility for cmdr's upgrade check feature (cmdr/src/analytics_client/upgrade_check.rs)
#
# Use Case: When developing/testing the upgrade progress display in cmdr apps (edi, giti),
# you need to see the full rustup installation progress. This script creates a clean slate
# by removing all toolchains, so when you run `cargo run --bin edi` or `cargo run --bin giti`,
# you'll see:
#   - Full rustup download progress
#   - Installation messages
#   - Compilation progress percentages
#
# Usage:
#   ./remove_toolchains.sh    # Removes ALL toolchains
#
# Recovery after testing:
#   rustup toolchain install stable
#   rustup default stable
#   # Or use: fish run.fish update-toolchain
#
# Note: This is a manual testing tool, not invoked by any code.

set -e  # Exit on any error

echo "🔧 Removing all rustup toolchains for testing..."

# Save current directory and change to temp directory to avoid rust-toolchain.toml interference
TEMP_DIR=$(mktemp -d)
echo "📁 Working from temp directory: $TEMP_DIR"
pushd "$TEMP_DIR" > /dev/null

# List current toolchains for reference
echo "📋 Current toolchains:"
rustup toolchain list

echo ""
echo "🗑️  Removing ALL existing toolchains..."

# Remove all toolchains
for toolchain in $(rustup toolchain list | cut -d' ' -f1); do
    echo "  Removing: $toolchain"
    rustup toolchain uninstall "$toolchain" || echo "    ⚠️  Failed to remove $toolchain"
done

# Clean up any remaining toolchain directories
echo "🧹 Cleaning up toolchain directories..."
rm -rf "$HOME/.rustup/toolchains/"*

# Verify no toolchains remain
echo ""
echo "📋 Toolchains after cleanup:"
rustup toolchain list

echo ""
echo "✅ All toolchains removed!"
echo "🚀 Now when you run the upgrade process, it will show full progress"
echo "📝 The upgrade will install nightly with visible download/installation output"
echo "⚠️  Note: You'll need to set a default toolchain after upgrading"
echo ""

# Restore original directory and clean up temp directory
popd > /dev/null
rm -rf "$TEMP_DIR"