59 lines
1.6 KiB
Go
59 lines
1.6 KiB
Go
package execx
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import (
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"context"
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"fmt"
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"log"
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"os"
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"os/exec"
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"strings"
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)
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type Runner struct {
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DryRun bool
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Kubeconfig string
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Logger *log.Logger
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}
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// Run runs one orchestration or CLI step.
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// Signature: (r *Runner) Run(ctx context.Context, name string, args ...string) (string, error).
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// Why: keeps behavior explicit so startup/shutdown workflows remain maintainable as services evolve.
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func (r *Runner) Run(ctx context.Context, name string, args ...string) (string, error) {
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if r.DryRun {
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r.logf("DRY-RUN: %s %s", name, strings.Join(args, " "))
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return "", nil
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}
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cmd := exec.CommandContext(ctx, name, args...)
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cmd.Env = os.Environ()
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if r.Kubeconfig != "" {
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cmd.Env = append(cmd.Env, "KUBECONFIG="+r.Kubeconfig)
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}
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out, err := cmd.CombinedOutput()
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trimmed := strings.TrimSpace(string(out))
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if err != nil {
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if trimmed == "" {
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return "", fmt.Errorf("%s %s: %w", name, strings.Join(args, " "), err)
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}
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return trimmed, fmt.Errorf("%s %s: %w", name, strings.Join(args, " "), err)
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}
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return trimmed, nil
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}
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// CommandExists runs one orchestration or CLI step.
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// Signature: (r *Runner) CommandExists(name string) bool.
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// Why: keeps behavior explicit so startup/shutdown workflows remain maintainable as services evolve.
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func (r *Runner) CommandExists(name string) bool {
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_, err := exec.LookPath(name)
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return err == nil
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}
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// logf runs one orchestration or CLI step.
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// Signature: (r *Runner) logf(format string, args ...any).
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// Why: keeps behavior explicit so startup/shutdown workflows remain maintainable as services evolve.
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func (r *Runner) logf(format string, args ...any) {
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if r.Logger != nil {
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r.Logger.Printf(format, args...)
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}
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}
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