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skills/python-uv-scripts/assets/templates/cli-app.py

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+#!/usr/bin/env -S uv run --script
+# /// script
+# requires-python = ">=3.11"
+# dependencies = [
+#   "typer>=0.9.0",
+#   "rich>=13.0.0",
+# ]
+# ///
+"""
+CLI application template using Typer and Rich.
+
+Demonstrates command-line argument parsing, subcommands, and formatted output.
+
+Usage:
+    python cli-app.py --help
+    python cli-app.py greet "World"
+    python cli-app.py process input.txt --output output.txt
+"""
+
+import typer
+from rich import print
+from rich.console import Console
+from pathlib import Path
+
+app = typer.Typer()
+console = Console()
+
+
+@app.command()
+def greet(name: str):
+    """Greet someone by name."""
+    print(f"[green]Hello, {name}![/green]")
+
+
+@app.command()
+def process(
+    input_file: Path = typer.Argument(..., help="Input file to process"),
+    output: Path = typer.Option(None, "--output", "-o", help="Output file path"),
+):
+    """Process a file and optionally write results."""
+    if not input_file.exists():
+        console.print(f"[red]Error: {input_file} not found[/red]")
+        raise typer.Exit(code=1)
+
+    # Process file
+    with open(input_file) as f:
+        content = f.read()
+
+    console.print(f"[cyan]Processing {input_file}...[/cyan]")
+
+    # Your processing logic here
+    result = content.upper()  # Example transformation
+
+    if output:
+        output.write_text(result)
+        console.print(f"[green]✓ Written to {output}[/green]")
+    else:
+        print(result)
+
+
+if __name__ == "__main__":
+    app()