banger/cmd/banger/main.go
Thales Maciel 71a332a6a1
cli: maturity polish — color, error translation, tabwriter consistency
Adds three small but high-leverage presentation tweaks for v0.1:

1. internal/cli/style is a new ~70 LOC package with Pass/Fail/Warn/
   Dim/Bold helpers. Each is TTY-gated and obeys NO_COLOR. No
   external dep. Wired into the doctor PASS/FAIL/WARN status, the
   "banger:" error prefix on stderr, and the dim 'ready in <elapsed>'
   line.
2. internal/cli/errors translates rpc.ErrorResponse into user-facing
   text. operation_failed becomes invisible (the message wins);
   not_found, already_exists, bad_request, bad_version, unauthorized,
   unknown_method get short labels; unknown codes pass through. The
   daemon-attached op_id lands in dim parens — paste into
   journalctl --grep to find the daemon log line that produced the
   failure.
3. Tabwriter config converges on (0, 8, 2, ' ', 0) across every
   list/table command. The vm prune confirmation table picked up the
   right config; system install + system status switched from bare
   "key: value\n" lines to tabular form. printVMSpecLine drops its
   Unicode middle dot for an ASCII '|' so terminals without UTF-8
   render cleanly.

Tests cover translateRPCError for every code, style helpers no-op
on non-TTY and under NO_COLOR. Smoke status greps switch from
"key: value" to "key   value" to match the new format.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-26 22:27:07 -03:00

33 lines
765 B
Go

package main
import (
"context"
"errors"
"fmt"
"os"
"os/signal"
"syscall"
"banger/internal/cli"
"banger/internal/cli/style"
)
func main() {
ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
defer stop()
cmd := cli.NewBangerCommand()
if err := cmd.ExecuteContext(ctx); err != nil {
var exitErr cli.ExitCodeError
if errors.As(err, &exitErr) {
os.Exit(exitErr.Code)
}
// Render the failure through the CLI's translator so RPC
// codes become friendly text, op_ids land in parens for
// journalctl grepping, and the "banger:" prefix turns red
// on a TTY.
prefix := style.Fail(os.Stderr, "banger:")
fmt.Fprintf(os.Stderr, "%s %s\n", prefix, cli.TranslateError(os.Stderr, err))
os.Exit(1)
}
}