James Coleman
b39600f64a
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Restore uncommitted work from earlier sessions: DMX scene-select channels, MQTT override handling, configurable zone refresh interval, OSC additions, and matching tests and docs. Add versioning following nginx-cache-purge: VERSION file, ldflags-stamped build identifiers in info.go, Makefile, GoReleaser config, GitHub workflows, and a -version flag using the standard flag package. Claude-Session: https://claude.ai/code/session_01C5ZxhELATettecwYcNiXVN
77 lines
2.1 KiB
Go
77 lines
2.1 KiB
Go
package main
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import (
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"flag"
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"fmt"
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"os"
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"runtime/debug"
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)
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// Flags supplied to the cli.
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type Flags struct {
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ConfigPath string
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Discover bool
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Verbose bool
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}
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// printVersion emits version and build information to stdout.
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func printVersion() {
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fmt.Printf("%s: %s (%s)\n", Name, Version, Mode)
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if Commit != "" {
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fmt.Printf(" commit: %s\n", Commit)
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}
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if Date != "" {
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fmt.Printf(" built: %s\n", Date)
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}
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// Without build stamps, a module-aware build still records the revision
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// it was built from, so fall back to what the toolchain embedded.
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if Commit == "" {
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if bi, ok := debug.ReadBuildInfo(); ok {
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for _, s := range bi.Settings {
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switch s.Key {
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case "vcs.revision":
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fmt.Printf(" commit: %s\n", s.Value)
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case "vcs.time":
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fmt.Printf(" built: %s\n", s.Value)
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}
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}
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}
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}
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}
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// ParseFlags parses the supplied command-line flags.
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func (a *App) ParseFlags() {
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app.flags = new(Flags)
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flag.Usage = func() {
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fmt.Printf(Name + ": " + Description + ".\n\nUsage:\n")
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flag.PrintDefaults()
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}
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// Print the version and exit when requested.
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var showVersion bool
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usage := "Print version information and quit"
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flag.BoolVar(&showVersion, "version", false, usage)
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flag.BoolVar(&showVersion, "v", false, usage+" (shorthand)")
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// Override the configuration path.
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usage = "Load configuration from `FILE`"
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flag.StringVar(&app.flags.ConfigPath, "config", "", usage)
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flag.StringVar(&app.flags.ConfigPath, "c", "", usage+" (shorthand)")
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// Query each configured device for its integration IDs and exit.
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usage = "Connect to each device, print its integration IDs, and exit"
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flag.BoolVar(&app.flags.Discover, "discover", false, usage)
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flag.BoolVar(&app.flags.Discover, "d", false, usage+" (shorthand)")
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// Force debug-level logging to the console, overriding the configured log level.
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usage = "Force debug-level logging to the console, overriding the config"
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flag.BoolVar(&app.flags.Verbose, "verbose", false, usage)
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flag.BoolVar(&app.flags.Verbose, "V", false, usage+" (shorthand)")
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flag.Parse()
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if showVersion {
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printVersion()
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os.Exit(0)
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}
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}
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