opnsense-exporter/vendor/github.com/alecthomas/kingpin/v2/envar.go
ihatemodels 24e8161262 Add initial project structure
- add base structure
 - unify the proto metrics creation and propagation
 - implement arp and openvpn
 - refactor to meet the prom exporter standart
 - add instance label to the metrics
 - refactor the call chain
 - add gateway, unbound_dns and openvpn implementations
 - add gateway stuff
 - structure refactor; mod clean; cron implementation
 - implement cron in the collector; refactor utils in the opnsense package

refactor names and implement option functions to disable collectorInstances

add GH action workflows

Create codeql.yml

- clean

fix stuff
2023-11-26 16:06:03 +02:00

40 lines
795 B
Go

package kingpin
import (
"os"
"regexp"
)
var (
envVarValuesSeparator = "\r?\n"
envVarValuesTrimmer = regexp.MustCompile(envVarValuesSeparator + "$")
envVarValuesSplitter = regexp.MustCompile(envVarValuesSeparator)
)
type envarMixin struct {
envar string
noEnvar bool
}
func (e *envarMixin) HasEnvarValue() bool {
return e.GetEnvarValue() != ""
}
func (e *envarMixin) GetEnvarValue() string {
if e.noEnvar || e.envar == "" {
return ""
}
return os.Getenv(e.envar)
}
func (e *envarMixin) GetSplitEnvarValue() []string {
envarValue := e.GetEnvarValue()
if envarValue == "" {
return []string{}
}
// Split by new line to extract multiple values, if any.
trimmed := envVarValuesTrimmer.ReplaceAllString(envarValue, "")
return envVarValuesSplitter.Split(trimmed, -1)
}