mirror of https://github.com/mindoc-org/mindoc.git
89 lines
2.1 KiB
Go
89 lines
2.1 KiB
Go
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// Copyright 2015 Daniel Theophanes.
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// Use of this source code is governed by a zlib-style
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// license that can be found in the LICENSE file.
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// +build linux darwin
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package service
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import (
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"fmt"
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"io/ioutil"
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"log/syslog"
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"os/exec"
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)
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func newSysLogger(name string, errs chan<- error) (Logger, error) {
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w, err := syslog.New(syslog.LOG_INFO, name)
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if err != nil {
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return nil, err
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}
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return sysLogger{w, errs}, nil
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}
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type sysLogger struct {
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*syslog.Writer
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errs chan<- error
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}
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func (s sysLogger) send(err error) error {
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if err != nil && s.errs != nil {
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s.errs <- err
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}
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return err
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}
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func (s sysLogger) Error(v ...interface{}) error {
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return s.send(s.Writer.Err(fmt.Sprint(v...)))
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}
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func (s sysLogger) Warning(v ...interface{}) error {
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return s.send(s.Writer.Warning(fmt.Sprint(v...)))
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}
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func (s sysLogger) Info(v ...interface{}) error {
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return s.send(s.Writer.Info(fmt.Sprint(v...)))
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}
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func (s sysLogger) Errorf(format string, a ...interface{}) error {
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return s.send(s.Writer.Err(fmt.Sprintf(format, a...)))
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}
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func (s sysLogger) Warningf(format string, a ...interface{}) error {
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return s.send(s.Writer.Warning(fmt.Sprintf(format, a...)))
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}
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func (s sysLogger) Infof(format string, a ...interface{}) error {
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return s.send(s.Writer.Info(fmt.Sprintf(format, a...)))
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}
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func run(command string, arguments ...string) error {
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cmd := exec.Command(command, arguments...)
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// Connect pipe to read Stderr
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stderr, err := cmd.StderrPipe()
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if err != nil {
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// Failed to connect pipe
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return fmt.Errorf("%q failed to connect stderr pipe: %v", command, err)
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}
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// Do not use cmd.Run()
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if err := cmd.Start(); err != nil {
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// Problem while copying stdin, stdout, or stderr
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return fmt.Errorf("%q failed: %v", command, err)
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}
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// Zero exit status
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// Darwin: launchctl can fail with a zero exit status,
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// so check for emtpy stderr
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if command == "launchctl" {
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slurp, _ := ioutil.ReadAll(stderr)
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if len(slurp) > 0 {
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return fmt.Errorf("%q failed with stderr: %s", command, slurp)
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}
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}
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if err := cmd.Wait(); err != nil {
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// Command didn't exit with a zero exit status.
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return fmt.Errorf("%q failed: %v", command, err)
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}
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return nil
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}
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