Artifact [ecd2eff17c]

Artifact ecd2eff17c5f793f5a5c51fbe9ff0610094624c3df3a23a2a9e8ee3355b3bc55:

• File cmd/libfossil/main.go — part of check-in [8fdb632783] at 2026-10-19 22:55:46 on branch feat/cli-snapshot — fix(cli): print usage errors on stderr and pin their exit status 80

  The documented status was right for the binary; go run turns it into 1. Usage text went to stdout, so an embedder reading stdout saw it on a failure. The doc now says which status a measurement under go run shows, and a test pins 80 for an unknown flag, a missing flag or argument and an unknown subcommand. (user: [email protected], size: 1298) [annotate] [blame] [check-ins using] [more...]

package main

import (
	"errors"
	"fmt"
	"os"

	"github.com/alecthomas/kong"
	"github.com/danmestas/go-libfossil/cli"
)

// CLI is the top-level command structure.
//
// Version is deliberately a subcommand only, not also a global --version
// flag: `repo extract` already has its own --version flag (the source
// version to extract from), and kong's global flags are visible in every
// subcommand's context, so a root-level --version would collide with it.
// Renaming that existing, unrelated flag to make room isn't part of this
// change.
type CLI struct {
	cli.Globals

	Repo    cli.RepoCmd    `cmd:"" help:"Repository operations"`
	Version cli.VersionCmd `cmd:"" help:"Print version information"`
}

func main() {
	var c CLI
	parser := kong.Must(&c,
		kong.Name("libfossil"),
		kong.Description("Fossil-compatible repository tool (pure Go)"),
		kong.UsageOnError(),
	)
	ctx, err := parser.Parse(os.Args[1:])
	if err != nil {
		// A usage error prints the usage with the error, on stderr, and
		// exits 80: stdout carries only a command's output.
		parser.Stdout = parser.Stderr
		parser.FatalIfErrorf(err)
	}
	err = ctx.Run(&c.Globals)
	var exit *cli.ExitError
	if errors.As(err, &exit) {
		fmt.Fprintf(os.Stderr, "libfossil: %v\n", exit)
		os.Exit(exit.Code)
	}
	ctx.FatalIfErrorf(err)
}