go_sysutils/envs/funcs_enverrnoval.go
brent saner e5f7296d2e
v1.13.3
ADDED:
* envs.GetEnvErr(), envs.GetEnvErrNoBlank(), envs.EnvErrNoVal
  This allows error-returned env vars for nonexistent/empty values.
2025-07-12 15:10:38 -04:00

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
}