mirror of https://github.com/spf13/cobra.git
50 lines
2.0 KiB
Go
50 lines
2.0 KiB
Go
package cobra
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
"strings"
|
|
)
|
|
|
|
const (
|
|
activeHelpMarker = "_activeHelp_ "
|
|
// The below values should not be changed: programs will be using them explicitly
|
|
// in their user documentation, and users will be using them explicitly.
|
|
activeHelpEnvVarSuffix = "_ACTIVE_HELP"
|
|
activeHelpGlobalEnvVar = "COBRA_ACTIVE_HELP"
|
|
activeHelpGlobalDisable = "0"
|
|
)
|
|
|
|
// AppendActiveHelp adds the specified string to the specified array to be used as ActiveHelp.
|
|
// Such strings will be processed by the completion script and will be shown as ActiveHelp
|
|
// to the user.
|
|
// The array parameter should be the array that will contain the completions.
|
|
// This function can be called multiple times before and/or after completions are added to
|
|
// the array. Each time this function is called with the same array, the new
|
|
// ActiveHelp line will be shown below the previous ones when completion is triggered.
|
|
func AppendActiveHelp(compArray []string, activeHelpStr string) []string {
|
|
return append(compArray, fmt.Sprintf("%s%s", activeHelpMarker, activeHelpStr))
|
|
}
|
|
|
|
// GetActiveHelpConfig returns the value of the ActiveHelp environment variable
|
|
// <PROGRAM>_ACTIVE_HELP where <PROGRAM> is the name of the root command in upper
|
|
// case, with all - replaced by _.
|
|
// It will always return "0" if the global environment variable COBRA_ACTIVE_HELP
|
|
// is set to "0".
|
|
func GetActiveHelpConfig(cmd *Command) string {
|
|
activeHelpCfg := os.Getenv(activeHelpGlobalEnvVar)
|
|
if activeHelpCfg != activeHelpGlobalDisable {
|
|
activeHelpCfg = os.Getenv(activeHelpEnvVar(cmd.Root().Name()))
|
|
}
|
|
return activeHelpCfg
|
|
}
|
|
|
|
// activeHelpEnvVar returns the name of the program-specific ActiveHelp environment
|
|
// variable. It has the format <PROGRAM>_ACTIVE_HELP where <PROGRAM> is the name of the
|
|
// root command in upper case, with all - replaced by _.
|
|
func activeHelpEnvVar(name string) string {
|
|
// This format should not be changed: users will be using it explicitly.
|
|
activeHelpEnvVar := strings.ToUpper(fmt.Sprintf("%s%s", name, activeHelpEnvVarSuffix))
|
|
return strings.ReplaceAll(activeHelpEnvVar, "-", "_")
|
|
}
|