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exec: interrupt with delayed kill

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This gives nix a chance to gracefully exit.
This commit is contained in:
Ophestra 2025-07-21 00:33:04 +09:00
parent e2299a57d2
commit 4787f51d84
Signed by: cat
SSH Key Fingerprint: SHA256:gQ67O0enBZ7UdZypgtspB2FDM1g3GVw8nX0XSdcFw8Q
1 changed files with 10 additions and 1 deletions
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11
exec.go
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@ -5,7 +5,13 @@ import (
"errors"
"io"
"iter"
"os"
"os/exec"
"time"
)
const (
defaultWaitDelay = 15 * time.Second
)
// Nix is the name of the nix program.
@ -47,7 +53,10 @@ func New(ctx context.Context, extraArgs []string, stdout, stderr io.Writer) Cont
}
func (n *nix) Nix(ctx context.Context, arg ...string) *exec.Cmd {
return exec.CommandContext(ctx, n.name, append(n.extra, arg...)...)
cmd := exec.CommandContext(ctx, n.name, append(n.extra, arg...)...)
cmd.Cancel = func() error { return cmd.Process.Signal(os.Interrupt) }
cmd.WaitDelay = defaultWaitDelay
return cmd
}
func (n *nix) WriteStdin(cmd *exec.Cmd, installables iter.Seq[string], f func() error) (int, error) {