status-go/cmd/statusd/flags.go

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package main
import (
"fmt"
"os"
"path"
"strings"
)
// configFlags represents an array of JSON configuration files passed to a command line utility
type configFlags []string
func (f *configFlags) String() string {
return strings.Join(*f, ", ")
}
func (f *configFlags) Set(value string) error {
if !path.IsAbs(value) {
// Convert to absolute path
cwd, err := os.Getwd()
if err != nil {
return err
}
value = path.Join(cwd, value)
}
// Check that the file exists
stat, err := os.Stat(value)
if err != nil {
return err
}
if stat.IsDir() {
return fmt.Errorf("path does not represent a file: %s", value)
}
*f = append(*f, value)
return nil
}