
ADDED: * envs.GetEnvErr(), envs.GetEnvErrNoBlank(), envs.EnvErrNoVal This allows error-returned env vars for nonexistent/empty values.
28 lines
503 B
Go
28 lines
503 B
Go
package envs
|
|
|
|
import (
|
|
"strings"
|
|
)
|
|
|
|
// Error conforms to a stdlib error interface.
|
|
func (e *EnvErrNoVal) Error() (errStr string) {
|
|
|
|
var sb *strings.Builder = new(strings.Builder)
|
|
|
|
sb.WriteString("the variable '")
|
|
sb.WriteString(e.VarName)
|
|
sb.WriteString("' was ")
|
|
if sb.WasFound {
|
|
sb.WriteString("found")
|
|
} else {
|
|
sb.WriteString("not found")
|
|
}
|
|
if e.WasRequiredNonEmpty && e.WasFound {
|
|
sb.WriteString(" but is empty and was required to be non-empty")
|
|
}
|
|
|
|
errStr = sb.String()
|
|
|
|
return
|
|
}
|