mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-22 08:26:19 +01:00
97 lines
2.1 KiB
Go
97 lines
2.1 KiB
Go
package cli
|
||
|
||
import (
|
||
"flag"
|
||
"fmt"
|
||
)
|
||
|
||
// TakesValue returns true of the flag takes a value, otherwise false
|
||
func (f *StringFlag) TakesValue() bool {
|
||
return true
|
||
}
|
||
|
||
// GetUsage returns the usage string for the flag
|
||
func (f *StringFlag) GetUsage() string {
|
||
return f.Usage
|
||
}
|
||
|
||
// GetCategory returns the category for the flag
|
||
func (f *StringFlag) GetCategory() string {
|
||
return f.Category
|
||
}
|
||
|
||
// GetValue returns the flags value as string representation and an empty
|
||
// string if the flag takes no value at all.
|
||
func (f *StringFlag) GetValue() string {
|
||
return f.Value
|
||
}
|
||
|
||
// GetDefaultText returns the default text for this flag
|
||
func (f *StringFlag) GetDefaultText() string {
|
||
if f.DefaultText != "" {
|
||
return f.DefaultText
|
||
}
|
||
if f.defaultValue == "" {
|
||
return f.defaultValue
|
||
}
|
||
return fmt.Sprintf("%q", f.defaultValue)
|
||
}
|
||
|
||
// GetEnvVars returns the env vars for this flag
|
||
func (f *StringFlag) GetEnvVars() []string {
|
||
return f.EnvVars
|
||
}
|
||
|
||
// Apply populates the flag given the flag set and environment
|
||
func (f *StringFlag) Apply(set *flag.FlagSet) error {
|
||
// set default value so that environment wont be able to overwrite it
|
||
f.defaultValue = f.Value
|
||
|
||
if val, _, found := flagFromEnvOrFile(f.EnvVars, f.FilePath); found {
|
||
f.Value = val
|
||
f.HasBeenSet = true
|
||
}
|
||
|
||
for _, name := range f.Names() {
|
||
if f.Destination != nil {
|
||
set.StringVar(f.Destination, name, f.Value, f.Usage)
|
||
continue
|
||
}
|
||
set.String(name, f.Value, f.Usage)
|
||
}
|
||
|
||
return nil
|
||
}
|
||
|
||
// Get returns the flag’s value in the given Context.
|
||
func (f *StringFlag) Get(ctx *Context) string {
|
||
return ctx.String(f.Name)
|
||
}
|
||
|
||
// RunAction executes flag action if set
|
||
func (f *StringFlag) RunAction(c *Context) error {
|
||
if f.Action != nil {
|
||
return f.Action(c, c.String(f.Name))
|
||
}
|
||
|
||
return nil
|
||
}
|
||
|
||
// String looks up the value of a local StringFlag, returns
|
||
// "" if not found
|
||
func (cCtx *Context) String(name string) string {
|
||
if fs := cCtx.lookupFlagSet(name); fs != nil {
|
||
return lookupString(name, fs)
|
||
}
|
||
return ""
|
||
}
|
||
|
||
func lookupString(name string, set *flag.FlagSet) string {
|
||
f := set.Lookup(name)
|
||
if f != nil {
|
||
parsed := f.Value.String()
|
||
return parsed
|
||
}
|
||
return ""
|
||
}
|