Files
lambda/internal/config/config.go
M.V. Hutz 0eff85f8fa feat: add output flag (#13)
## Description

The lambda CLI previously only wrote output to stdout using shell redirection.
This PR adds support for writing results to files using the `-o` flag.
This is implemented using a new `Destination` interface that mirrors the existing `Source` pattern.

Changes:
- Added `Destination` interface with `StdoutDestination` and `FileDestination` implementations.
- Added `-o` flag to CLI argument parser for output file specification.
- Updated `Config` to use `Destination` instead of direct output handling.
- Refactored main to use `Destination.Write()` for result output.
- Updated Makefile targets (`run`, `profile`, `explain`) to use `-o` flag instead of shell redirection.

### Decisions

The `-o` flag defaults to stdout when not specified or when set to `-`.
This maintains backward compatibility while providing explicit file output capability.

## Benefits

- Cleaner command-line interface without shell redirection.
- Symmetric design with `Source` interface for input.
- More portable across different shells and environments.
- Explicit output handling improves code clarity.

## Checklist

- [x] Code follows conventional commit format.
- [x] Branch follows naming convention (`<type>/<description>`).
- [ ] Tests pass (if applicable).
- [ ] Documentation updated (if applicable).

Reviewed-on: #13
Co-authored-by: M.V. Hutz <git@maximhutz.me>
Co-committed-by: M.V. Hutz <git@maximhutz.me>
2026-01-11 22:14:48 +00:00

13 lines
583 B
Go

// Package "config" parses ad handles the user settings given to the program.
package config
// Configuration settings for the program.
type Config struct {
Source Source // The source code given to the program.
Destination Destination // The destination for the final result.
Verbose bool // Whether or not to print debug logs.
Explanation bool // Whether or not to print an explanation of the reduction.
Profile string // If not nil, print a CPU profile during execution.
Statistics bool // Whether or not to print statistics.
}