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Add only missing persistent flags of parents in mergePersistentFlags

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As persistent flags of parents can only be added, we don't need to always
check them every time, so make updateParentsPflags return only added flags.

Performance improvement:
benchmark                     old ns/op     new ns/op     delta
BenchmarkInheritedFlags-4     5595          4412          -21.14%
BenchmarkLocalFlags-4         3235          2667          -17.56%

benchmark                     old allocs     new allocs     delta
BenchmarkInheritedFlags-4     39             24             -38.46%
BenchmarkLocalFlags-4         21             15             -28.57%

benchmark                     old bytes     new bytes     delta
BenchmarkInheritedFlags-4     1000          600           -40.00%
BenchmarkLocalFlags-4         544           408           -25.00%
This commit is contained in:
Albert Nigmatzianov
2017-04-06 15:28:17 +02:00
parent 6202b5942b
commit 3d89ed4908
2 changed files with 32 additions and 19 deletions
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2
cobra_test.go
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@ -675,7 +675,7 @@ func TestPersistentFlags(t *testing.T) {
fullSetupTest("echo times -s again -c -p test here")
if strings.Join(tt, " ") != "test here" {
t.Errorf("flags didn't leave proper args remaining..%s given", tt)
t.Errorf("flags didn't leave proper args remaining. %s given", tt)
}
if flags1 != "again" {