Small written in Rust test manager to improve quality of life working in tests/ui

test-manager <source> -n <new_name> -p <path> [OPTIONS]

Required:

• <source> - Source file (e.g., issue-12345.rs)
• -n <new_name> - New filename (e.g., custom_attr.rs)
• -p <path> - Subdirectory under tests/ui (e.g., attributes)

test-manager -m <source1> <path1> <new_name1> <source2> <path2> <new_name2> ... [OPTIONS]

Required:

• -m, --multi - Enable multi-file mode
• Triplets of: <source> <path> <new_name> for each file to move

Options (available in both modes):

• -s, --stderr - Remove old .stderr file and regenerate with ./x test --bless
• -c, --comment <TEXT> - Add //! <TEXT> doc comment at top of file
• -f, --fmt - Format file with rustfmt
• -R, --regression - Extract issue number from filename and add GitHub link comment
• -g, --git - Commit moves with git

# Basic move
test-manager issue-12345.rs -n custom_attr.rs -p attributes

# Regression test with stderr
test-manager issue-98765.rs -n proc_macro_span.rs -p proc-macro -R -s

# Full workflow with git commit
test-manager issue-54321.rs -n lifetime_bounds.rs -p lifetimes -s -f -c "Test description" -g

# Move multiple files at once
test-manager -m \
  issue-12345.rs attributes custom_attr.rs \
  issue-67890.rs proc-macro proc_macro_span.rs \
  issue-11111.rs lifetimes lifetime_bounds.rs

# Multi-file with options
test-manager -m \
  issue-12345.rs attributes custom_attr.rs \
  issue-67890.rs proc-macro proc_macro_span.rs \
  -R -s -g

The tool operates in phases:

1. Prepare: Parse arguments and prepare file operations
2. Move: Move all files to their new locations
3. Git Commit (if -g): Commit the moves before applying other changes
4. Post-processing: Apply other operations (comments, formatting, stderr generation)

This ensures git history is clean when using the -g flag, as moves are committed separately from content changes.

All source files are expected to be in tests/ui/issues/ and will be moved to tests/ui/<path>/.

Each operation is a separate module in src/modules/. To add a new feature:

1. Create src/modules/your_feature.rs with your function
2. Add it to src/modules/mod.rs
3. Add the flag to Args struct in main.rs
4. Call your function in main.rs

Example adding a --backup flag:

// src/modules/backup.rs
pub fn create_backup(path: &str) -> Result<(), Box<dyn std::error::Error>> {
    std::fs::copy(path, format!("{}.bak", path))?;
    Ok(())
}

// In main.rs Args struct:
#[arg(short = 'b', long)]
backup: bool,

// In main() function:
if args.backup {
    create_backup(&destination_path)?;
}