91 lines
1.4 KiB
Go
91 lines
1.4 KiB
Go
package initservices
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import (
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"log"
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"os"
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"os/exec"
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"path/filepath"
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"time"
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"github.com/spf13/cobra"
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plog "novit.nc/direktil/pkg/log"
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)
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var (
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delays = []time.Duration{
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1 * time.Second,
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2 * time.Second,
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4 * time.Second,
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8 * time.Second,
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}
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crashForgiveDelay = 10 * time.Minute
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)
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func Command() (c *cobra.Command) {
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c = &cobra.Command{
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Use: "services",
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Short: "run user services",
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Run: run,
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}
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return
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}
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func run(c *cobra.Command, args []string) {
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paths, err := filepath.Glob("/etc/direktil/services/*")
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if err != nil && !os.IsNotExist(err) {
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log.Fatal("failed to list services: ", err)
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}
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for _, path := range paths {
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stat, err := os.Stat(path)
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if err != nil {
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log.Fatalf("failed to stat %s: %v", path, err)
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}
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if stat.Mode()&0100 == 0 {
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// not executable
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continue
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}
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go runService(path)
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}
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select {}
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}
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func runService(svcPath string) {
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svc := filepath.Base(svcPath)
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logger := plog.Get(svc)
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plog.EnableFiles()
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n := 0
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for {
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lastStart := time.Now()
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cmd := exec.Command(svcPath)
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cmd.Stdout = logger
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cmd.Stderr = logger
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err := cmd.Run()
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if time.Since(lastStart) > crashForgiveDelay {
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n = 0
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}
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if err == nil {
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logger.Taintf(plog.Error, "service exited (%v), waiting %v", err, delays[n])
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} else {
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logger.Taintf(plog.Error, "service exited on error (%v), waiting %v", err, delays[n])
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}
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time.Sleep(delays[n])
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if n+1 < len(delays) {
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n++
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}
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}
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}
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