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truststore_darwin: check the default Homebrew path for certutil

"mkcert localhost" went from 2.125s to 0.552s, a 4x speedup.

Fixes #135
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FiloSottile committed Aug 16, 2019
1 parent 25b1d39 commit 8ff73503d21f55e3dfa099035d74a8989db4977f
Showing with 8 additions and 2 deletions.
  1. +8 −2 truststore_nss.go
@@ -41,9 +41,15 @@ func init() {

switch runtime.GOOS {
case "darwin":
if hasCertutil = binaryExists("certutil"); hasCertutil {
switch {
case binaryExists("certutil"):
certutilPath, _ = exec.LookPath("certutil")
} else {
hasCertutil = true
case binaryExists("/usr/local/opt/nss/bin/certutil"):
// Check the default Homebrew path, to save executing Ruby. #135
certutilPath = "/usr/local/opt/nss/bin/certutil"
hasCertutil = true
default:
out, err := exec.Command("brew", "--prefix", "nss").Output()
if err == nil {
certutilPath = filepath.Join(strings.TrimSpace(string(out)), "bin", "certutil")

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