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[benchmark] Add a small --help menu to the low level driver that just… #16881

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Merged
merged 1 commit into from
May 29, 2018
Merged

[benchmark] Add a small --help menu to the low level driver that just… #16881

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12 changes: 11 additions & 1 deletion benchmark/utils/DriverUtils.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -93,6 +93,7 @@ enum TestAction {
case run
case listTests
case fail(String)
case help([String])
}

struct TestConfig {
Expand Down Expand Up @@ -136,7 +137,7 @@ struct TestConfig {
let validOptions = [
"--iter-scale", "--num-samples", "--num-iters",
"--verbose", "--delim", "--list", "--sleep",
"--tags", "--skip-tags"
"--tags", "--skip-tags", "--help"
]
let maybeBenchArgs: Arguments? = parseArgs(validOptions)
if maybeBenchArgs == nil {
Expand All @@ -146,6 +147,10 @@ struct TestConfig {

filters = benchArgs.positionalArgs

if benchArgs.optionalArgsMap["--help"] == nil {
return .help(validOptions)
}

if let x = benchArgs.optionalArgsMap["--iter-scale"] {
if x.isEmpty { return .fail("--iter-scale requires a value") }
iterationScale = Int(x)!
Expand Down Expand Up @@ -478,6 +483,11 @@ public func main() {
var config = TestConfig()

switch (config.processArguments()) {
case let .help(validOptions):
print("Valid options:")
for v in validOptions {
print(" \(v)")
}
case let .fail(msg):
// We do this since we need an autoclosure...
fatalError("\(msg)")
Expand Down