зеркало из https://github.com/mozilla/gecko-dev.git
91 строка
2.5 KiB
C++
91 строка
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "LogCommandLineHandler.h"
|
|
|
|
#include "mozilla/Tokenizer.h"
|
|
#include "nsDebug.h"
|
|
|
|
namespace mozilla {
|
|
|
|
void LoggingHandleCommandLineArgs(
|
|
int argc, char const* const* argv,
|
|
std::function<void(nsACString const&)> const& consumer) {
|
|
// Keeps the name of a pending env var (MOZ_LOG or MOZ_LOG_FILE) that
|
|
// we expect to get a value for in the next iterated arg.
|
|
// Used for the `-MOZ_LOG <modules>` form of argument.
|
|
nsAutoCString env;
|
|
|
|
auto const names = {NS_LITERAL_CSTRING("MOZ_LOG"),
|
|
NS_LITERAL_CSTRING("MOZ_LOG_FILE")};
|
|
|
|
for (int arg = 1; arg < argc; ++arg) {
|
|
Tokenizer p(argv[arg]);
|
|
|
|
if (!env.IsEmpty() && p.CheckChar('-')) {
|
|
NS_WARNING(
|
|
"Expects value after -MOZ_LOG(_FILE) argument, but another argument "
|
|
"found");
|
|
|
|
// We only expect values for the pending env var, start over
|
|
p.Rollback();
|
|
env.Truncate();
|
|
}
|
|
|
|
if (env.IsEmpty()) {
|
|
if (!p.CheckChar('-')) {
|
|
continue;
|
|
}
|
|
// We accept `-MOZ_LOG` as well as `--MOZ_LOG`.
|
|
Unused << p.CheckChar('-');
|
|
|
|
for (auto const& name : names) {
|
|
if (!p.CheckWord(name)) {
|
|
continue;
|
|
}
|
|
|
|
env.Assign(name);
|
|
env.Append('=');
|
|
break;
|
|
}
|
|
|
|
if (env.IsEmpty()) {
|
|
// An unknonwn argument, ignore.
|
|
continue;
|
|
}
|
|
|
|
// We accept `-MOZ_LOG <modules>` as well as `-MOZ_LOG=<modules>`.
|
|
|
|
if (p.CheckEOF()) {
|
|
// We have a lone `-MOZ_LOG` arg, the next arg is expected to be
|
|
// the value, |env| is now prepared as `MOZ_LOG=`.
|
|
continue;
|
|
}
|
|
|
|
if (!p.CheckChar('=')) {
|
|
// There is a character after the arg name and it's not '=',
|
|
// ignore this argument.
|
|
NS_WARNING("-MOZ_LOG(_FILE) argument not in a proper form");
|
|
|
|
env.Truncate();
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// This can be non-empty from previous iteration or in this iteration.
|
|
if (!env.IsEmpty()) {
|
|
nsDependentCSubstring value;
|
|
Unused << p.ReadUntil(Tokenizer::Token::EndOfFile(), value);
|
|
env.Append(value);
|
|
|
|
consumer(env);
|
|
|
|
env.Truncate();
|
|
}
|
|
}
|
|
}
|
|
|
|
} // namespace mozilla
|