40 lines
929 B
Go
40 lines
929 B
Go
/*
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Package commands contains commands and flags used by the photoprism application.
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Additional information concerning the command-line interface can be found in our Developer Guide:
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https://github.com/photoprism/photoprism/wiki/Commands
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*/
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package commands
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import (
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"os"
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"syscall"
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"github.com/photoprism/photoprism/internal/event"
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"github.com/photoprism/photoprism/pkg/fs"
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"github.com/sevlyar/go-daemon"
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)
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var log = event.Log
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// childAlreadyRunning tests if a .pid file at filePath is a running proccess.
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// it returns the pid value and the running status (true or false).
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func childAlreadyRunning(filePath string) (pid int, running bool) {
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if !fs.FileExists(filePath) {
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return pid, false
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}
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pid, err := daemon.ReadPidFile(filePath)
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if err != nil {
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return pid, false
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}
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process, err := os.FindProcess(int(pid))
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if err != nil {
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return pid, false
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}
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return pid, process.Signal(syscall.Signal(0)) == nil
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}
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