Launch Script Username Parameter Fix

This document outlines the fix for removing unnecessary username parameters from the launch script deployment calls.

🐛 Problem Description

The launch.sh script was still passing the username parameter to the deployment script even though the deployment script should auto-detect the username from the token.

Before:

# Run deployment script with automated features
python deploy_trackio_space.py << EOF
$TRACKIO_SPACE_NAME
$HF_TOKEN
$GIT_EMAIL
$HF_USERNAME  # ❌ Unnecessary - should be auto-detected
EOF

✅ Solution Implemented

Removed Unnecessary Username Parameter

After:

# Run deployment script with automated features
python deploy_trackio_space.py << EOF
$TRACKIO_SPACE_NAME
$HF_TOKEN
$GIT_EMAIL

EOF

🔧 Why This Fix Was Needed

1. Deployment Script Auto-Detection

The deploy_trackio_space.py script already has robust username auto-detection:

def __init__(self, space_name: str, token: str, git_email: str = None, git_name: str = None):
    # Username is auto-detected from token
    username = get_username_from_token(token)
    if not username:
        username = get_username_from_cli(token)

2. Consistent Automation

All deployment scripts now use the same pattern:

deploy_trackio_space.py - Auto-detects username from token
setup_hf_dataset.py - Auto-detects username from token
configure_trackio.py - Auto-detects username from token

3. Reduced Manual Input

The launch script still extracts username for its own use (defaults, display), but doesn't pass it to scripts that can auto-detect it.

📋 Current Workflow

Launch Script Username Usage:

# 1. Extract username for launch script use
HF_USERNAME=$(hf whoami | head -n1 | tr -d '\n')

# 2. Use for default values and display
get_input "Model repository name" "$HF_USERNAME/smollm3-finetuned-$(date +%Y%m%d)" REPO_NAME
get_input "Trackio dataset repository" "$HF_USERNAME/trackio-experiments" TRACKIO_DATASET_REPO
TRACKIO_URL="https://huggingface.co/spaces/$HF_USERNAME/$TRACKIO_SPACE_NAME"

# 3. Display in summary
echo "  User: $HF_USERNAME (auto-detected from token)"

Deployment Script Auto-Detection:

# Each script auto-detects username from token
username = get_username_from_token(hf_token)
if not username:
    username = get_username_from_cli(hf_token)

🎯 Benefits

✅ Consistent Automation

All scripts use the same username detection method
No manual username input required anywhere
Automatic fallback to CLI if API fails

✅ Reduced Complexity

Fewer parameters to pass between scripts
Less chance of username mismatch errors
Cleaner script interfaces

✅ Better User Experience

Username is auto-detected from token
No manual username input required
Clear feedback about auto-detection

✅ Future-Proof

If username detection method changes, only one place to update
Consistent behavior across all scripts
Easier to maintain and debug

🔍 Scripts Updated

1. `launch.sh`

✅ Removed $HF_USERNAME parameter from deployment script call
✅ Kept username extraction for launch script use (defaults, display)
✅ Maintained all other functionality

2. Deployment Scripts (No Changes Needed)

✅ deploy_trackio_space.py - Already auto-detects username
✅ setup_hf_dataset.py - Already auto-detects username
✅ configure_trackio.py - Already auto-detects username

🧪 Testing Results

# Syntax check passes
bash -n launch.sh
# ✅ No syntax errors

# All tests pass
python tests/test_trackio_fixes.py
# ✅ 7/7 tests passed

🚀 Usage

The fix is transparent to users. The workflow remains the same:

# 1. Run launch script
bash launch.sh

# 2. Enter token (username auto-detected)
Enter your Hugging Face token: hf_...

# 3. All deployment happens automatically
# - Username auto-detected from token
# - No manual username input required
# - Consistent behavior across all scripts

🎉 Summary

The username parameter fix ensures that:

✅ No Manual Username Input: Username is auto-detected from token
✅ Consistent Automation: All scripts use the same detection method
✅ Reduced Complexity: Fewer parameters to pass between scripts
✅ Better User Experience: Clear feedback about auto-detection
✅ Future-Proof: Easy to maintain and update

The launch script now provides a truly automated experience where the username is seamlessly extracted from the token and used consistently across all deployment scripts.