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mycorrhiza/flag.go
handlerug 839f8bc2d6
New static files system
assets.qtpl is no more! Now you can just add files to static/ folder,
make sure the extension is registered in static.go (a shortcoming
that'll be addressed in future Go versions), and you're done! It
searches the local file system first, then falls back to the files
embedded with the binary (in the static/ folder).
2021-06-12 20:58:04 +07:00

59 lines
1.2 KiB
Go

package main
import (
_ "embed"
"flag"
"fmt"
"github.com/bouncepaw/mycorrhiza/cfg"
"log"
"os"
"path/filepath"
)
// CLI options are read and parsed here.
//go:embed assets/config.ini
var defaultConfig []byte
var printExampleConfig bool
func init() {
flag.StringVar(&cfg.ConfigFilePath, "config-path", "", "Path to a configuration file. Leave empty if you don't want to use it.")
flag.BoolVar(&printExampleConfig, "print-example-config", false, "If true, print an example configuration file contents and exit. You can save the output to a file and base your own configuration on it.")
flag.Usage = printHelp
}
// printHelp prints the help message.
func printHelp() {
_, err := fmt.Fprintf(
flag.CommandLine.Output(),
"Usage of %s:\n",
os.Args[0],
)
if err != nil {
log.Fatal(err)
}
flag.PrintDefaults()
}
// parseCliArgs parses CLI options and sets several important global variables. Call it early.
func parseCliArgs() {
flag.Parse()
args := flag.Args()
if printExampleConfig {
os.Stdout.Write(defaultConfig)
os.Exit(0)
}
if len(args) == 0 {
log.Fatal("Error: pass a wiki directory")
}
wikiDir, err := filepath.Abs(args[0])
cfg.WikiDir = wikiDir
if err != nil {
log.Fatal(err)
}
}