M.V. Hutz
0eff85f8fa
## 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>
28 lines
523 B
Go
28 lines
523 B
Go
package config
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import (
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"fmt"
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"os"
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)
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// A method of writing output to the user.
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type Destination interface {
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// Write data to this destination.
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Write(data string) error
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}
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// A destination writing to stdout.
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type StdoutDestination struct{}
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func (d StdoutDestination) Write(data string) error {
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fmt.Println(data)
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return nil
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}
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// A destination writing to a file.
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type FileDestination struct{ Path string }
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func (d FileDestination) Write(data string) error {
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return os.WriteFile(d.Path, []byte(data+"\n"), 0644)
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}
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