mirror of
https://github.com/binwiederhier/ntfy.git
synced 2024-08-21 10:43:49 +02:00
74 lines
2.3 KiB
Go
74 lines
2.3 KiB
Go
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// Package cmd provides the ntfy CLI application
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package cmd
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import (
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"fmt"
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"github.com/urfave/cli/v2"
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"github.com/urfave/cli/v2/altsrc"
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"heckel.io/ntfy/config"
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"heckel.io/ntfy/server"
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"log"
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"os"
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)
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// New creates a new CLI application
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func New() *cli.App {
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flags := []cli.Flag{
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&cli.StringFlag{Name: "config", Aliases: []string{"c"}, EnvVars: []string{"NTFY_CONFIG_FILE"}, Value: "/etc/ntfy/config.yml", DefaultText: "/etc/ntfy/config.yml", Usage: "config file"},
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altsrc.NewStringFlag(&cli.StringFlag{Name: "listen-http", Aliases: []string{"l"}, EnvVars: []string{"NTFY_LISTEN_HTTP"}, Value: config.DefaultListenHTTP, Usage: "ip:port used to as listen address"}),
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}
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return &cli.App{
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Name: "ntfy",
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Usage: "Simple pub-sub notification service",
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UsageText: "ntfy [OPTION..]",
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HideHelp: true,
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HideVersion: true,
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EnableBashCompletion: true,
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UseShortOptionHandling: true,
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Reader: os.Stdin,
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Writer: os.Stdout,
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ErrWriter: os.Stderr,
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Action: execRun,
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Before: initConfigFileInputSource("config", flags),
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Flags: flags,
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}
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}
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func execRun(c *cli.Context) error {
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// Read all the options
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listenHTTP := c.String("listen-http")
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// Run main bot, can be killed by signal
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conf := config.New(listenHTTP)
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s := server.New(conf)
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if err := s.Run(); err != nil {
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log.Fatalln(err)
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}
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log.Printf("Exiting.")
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return nil
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}
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// initConfigFileInputSource is like altsrc.InitInputSourceWithContext and altsrc.NewYamlSourceFromFlagFunc, but checks
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// if the config flag is exists and only loads it if it does. If the flag is set and the file exists, it fails.
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func initConfigFileInputSource(configFlag string, flags []cli.Flag) cli.BeforeFunc {
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return func(context *cli.Context) error {
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configFile := context.String(configFlag)
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if context.IsSet(configFlag) && !fileExists(configFile) {
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return fmt.Errorf("config file %s does not exist", configFile)
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} else if !context.IsSet(configFlag) && !fileExists(configFile) {
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return nil
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}
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inputSource, err := altsrc.NewYamlSourceFromFile(configFile)
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if err != nil {
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return err
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}
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return altsrc.ApplyInputSourceValues(context, inputSource, flags)
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}
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}
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func fileExists(filename string) bool {
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stat, _ := os.Stat(filename)
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return stat != nil
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}
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