Pim van Pelt
74448cf6d0
- PauseBackend and ResumeBackend return an error (not bool) when the
backend is disabled, preventing an inconsistent state where the
health state says "paused" but enabled=false.
- DisableBackend and EnableBackend now log uniform backend-transition
lines with from/to instead of separate backend-disable/backend-enable
messages.
- CLI errors strip gRPC boilerplate ("rpc error: code = ... desc = ")
and display the server message in red (when color is enabled). Both
the interactive shell and one-shot mode use the same formatError path.
55 lines
1.3 KiB
Go
55 lines
1.3 KiB
Go
// Copyright (c) 2026, Pim van Pelt <pim@ipng.ch>
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package main
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import (
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"context"
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"flag"
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"fmt"
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"os"
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"strings"
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"google.golang.org/grpc"
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"google.golang.org/grpc/credentials/insecure"
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buildinfo "git.ipng.ch/ipng/vpp-maglev/cmd"
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"git.ipng.ch/ipng/vpp-maglev/internal/grpcapi"
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)
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func main() {
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if err := run(); err != nil {
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fmt.Fprintf(os.Stderr, "%s\n", formatError(err))
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os.Exit(1)
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}
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}
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func run() error {
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serverAddr := flag.String("server", "localhost:9090", "maglev server address")
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color := flag.Bool("color", true, "colorize static labels in output")
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flag.Parse()
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colorEnabled = *color
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conn, err := grpc.NewClient(*serverAddr,
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grpc.WithTransportCredentials(insecure.NewCredentials()))
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if err != nil {
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return fmt.Errorf("connect %s: %w", *serverAddr, err)
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}
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defer conn.Close()
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client := grpcapi.NewMaglevClient(conn)
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ctx := context.Background()
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args := flag.Args()
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if len(args) == 0 {
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// Interactive shell: announce version on startup.
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fmt.Printf("maglevc %s (commit %s, built %s)\n",
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buildinfo.Version(), buildinfo.Commit(), buildinfo.Date())
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return runShell(ctx, client)
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}
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// One-shot command from CLI arguments.
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root := buildTree()
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tokens := splitTokens(strings.Join(args, " "))
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return dispatch(ctx, root, client, tokens)
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}
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