check formatter during init

Author: aseembits93

codeflash/cli_cmds/cmd_init.py

@@ -587,6 +587,16 @@ def configure_pyproject_toml(setup_info: SetupInfo) -> None:
         )
     elif formatter == "don't use a formatter":
         formatter_cmds.append("disabled")
+    if formatter in ["black", "ruff"]:
+        try:
+            result = subprocess.run([formatter], capture_output=True, check=False)
+            click.echo(f"✅ Formatter exists on system")
+            click.echo()
+        except FileNotFoundError as e:
+            click.echo(f"⚠️ Formatter not found: {formatter}")
+            click.echo()
+            # Not throwing an exception, letting the program proceed even though the formatter was not found, putting it on the user to install it later
+            # raise e from None
     codeflash_section["formatter-cmds"] = formatter_cmds
     # Add the 'codeflash' section, ensuring 'tool' section exists
     tool_section = pyproject_data.get("tool", tomlkit.table())