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Diffstat (limited to 'src/zenutil/commandlineoptions.cpp')
| -rw-r--r-- | src/zenutil/commandlineoptions.cpp | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/src/zenutil/commandlineoptions.cpp b/src/zenutil/commandlineoptions.cpp new file mode 100644 index 000000000..afef7f6f2 --- /dev/null +++ b/src/zenutil/commandlineoptions.cpp @@ -0,0 +1,221 @@ +// Copyright Epic Games, Inc. All Rights Reserved. + +#include <zenutil/commandlineoptions.h> + +#include <filesystem> +#if ZEN_WITH_TESTS +# include <zencore/testing.h> +#endif // ZEN_WITH_TESTS + +void +cxxopts::values::parse_value(const std::string& text, std::filesystem::path& value) +{ + value = zen::StringToPath(text); +} + +namespace zen { + +std::vector<std::string> +ParseCommandLine(std::string_view CommandLine) +{ + auto IsWhitespaceOrEnd = [](std::string_view CommandLine, std::string::size_type Pos) { + if (Pos == CommandLine.length()) + { + return true; + } + if (CommandLine[Pos] == ' ') + { + return true; + } + return false; + }; + + bool IsParsingArg = false; + bool IsInQuote = false; + + std::string::size_type Pos = 0; + std::string::size_type ArgStart = 0; + std::vector<std::string> Args; + while (Pos < CommandLine.length()) + { + if (IsInQuote) + { + if (CommandLine[Pos] == '"' && IsWhitespaceOrEnd(CommandLine, Pos + 1)) + { + Args.push_back(std::string(CommandLine.substr(ArgStart, Pos - ArgStart + 1))); + Pos++; + IsInQuote = false; + IsParsingArg = false; + } + else + { + Pos++; + } + } + else if (IsParsingArg) + { + ZEN_ASSERT(Pos > ArgStart); + if (CommandLine[Pos] == ' ') + { + Args.push_back(std::string(CommandLine.substr(ArgStart, Pos - ArgStart))); + Pos++; + IsParsingArg = false; + } + else if (CommandLine[Pos] == '"') + { + IsInQuote = true; + Pos++; + } + else + { + Pos++; + } + } + else if (CommandLine[Pos] == '"') + { + IsInQuote = true; + IsParsingArg = true; + ArgStart = Pos; + Pos++; + } + else if (CommandLine[Pos] != ' ') + { + IsParsingArg = true; + ArgStart = Pos; + Pos++; + } + else + { + Pos++; + } + } + if (IsParsingArg) + { + ZEN_ASSERT(Pos > ArgStart); + Args.push_back(std::string(CommandLine.substr(ArgStart))); + } + + return Args; +} + +std::vector<char*> +StripCommandlineQuotes(std::vector<std::string>& InOutArgs) +{ + std::vector<char*> RawArgs; + RawArgs.reserve(InOutArgs.size()); + for (std::string& Arg : InOutArgs) + { + std::string::size_type EscapedQuotePos = Arg.find("\\\"", 1); + while (EscapedQuotePos != std::string::npos && Arg.rfind('\"', EscapedQuotePos - 1) != std::string::npos) + { + Arg.erase(EscapedQuotePos, 1); + EscapedQuotePos = Arg.find("\\\"", EscapedQuotePos); + } + + if (Arg.starts_with("\"")) + { + if (Arg.find('"', 1) == Arg.length() - 1) + { + if (Arg.find(' ', 1) == std::string::npos) + { + Arg = Arg.substr(1, Arg.length() - 2); + } + } + } + RawArgs.push_back(const_cast<char*>(Arg.c_str())); + } + return RawArgs; +} + +void +MakeSafeAbsolutePathÍnPlace(std::filesystem::path& Path) +{ + if (!Path.empty()) + { + std::filesystem::path AbsolutePath = std::filesystem::absolute(Path).make_preferred(); +#if ZEN_PLATFORM_WINDOWS + const std::string_view Prefix = "\\\\?\\"; + const std::u8string PrefixU8(Prefix.begin(), Prefix.end()); + std::u8string PathString = AbsolutePath.u8string(); + if (!PathString.empty() && !PathString.starts_with(PrefixU8)) + { + PathString.insert(0, PrefixU8); + Path = PathString; + } +#endif // ZEN_PLATFORM_WINDOWS + } +} + +std::filesystem::path +MakeSafeAbsolutePath(const std::filesystem::path& Path) +{ + std::filesystem::path Tmp(Path); + MakeSafeAbsolutePathÍnPlace(Tmp); + return Tmp; +} + +std::filesystem::path +StringToPath(const std::string_view& Path) +{ + std::string_view UnquotedPath = RemoveQuotes(Path); + + if (UnquotedPath.ends_with('/') || UnquotedPath.ends_with('\\') || UnquotedPath.ends_with(std::filesystem::path::preferred_separator)) + { + UnquotedPath = UnquotedPath.substr(0, UnquotedPath.length() - 1); + } + + return std::filesystem::path(UnquotedPath).make_preferred(); +} + +std::string_view +RemoveQuotes(const std::string_view& Arg) +{ + if (Arg.length() > 2) + { + if (Arg[0] == '"' && Arg[Arg.length() - 1] == '"') + { + return Arg.substr(1, Arg.length() - 2); + } + } + return Arg; +} + +#if ZEN_WITH_TESTS + +void +commandlineoptions_forcelink() +{ +} + +TEST_CASE("CommandLine") +{ + std::vector<std::string> v1 = ParseCommandLine("c:\\my\\exe.exe \"quoted arg\" \"one\",two,\"three\\\""); + CHECK_EQ(v1[0], "c:\\my\\exe.exe"); + CHECK_EQ(v1[1], "\"quoted arg\""); + CHECK_EQ(v1[2], "\"one\",two,\"three\\\""); + + std::vector<std::string> v2 = ParseCommandLine( + "--tracehost 127.0.0.1 builds download --url=https://jupiter.devtools.epicgames.com --namespace=ue.oplog " + "--bucket=citysample.packaged-build.fortnite-main.windows \"c:\\just\\a\\path\" " + "--access-token-path=\"C:\\Users\\dan.engelbrecht\\jupiter-token.json\" \"D:\\Dev\\Spaced Folder\\Target\\\" " + "--alt-path=\"D:\\Dev\\Spaced Folder2\\Target\\\" 07dn23ifiwesnvoasjncasab --build-part-name win64,linux,ps5"); + + std::vector<char*> v2Stripped = StripCommandlineQuotes(v2); + CHECK_EQ(v2Stripped[0], std::string("--tracehost")); + CHECK_EQ(v2Stripped[1], std::string("127.0.0.1")); + CHECK_EQ(v2Stripped[2], std::string("builds")); + CHECK_EQ(v2Stripped[3], std::string("download")); + CHECK_EQ(v2Stripped[4], std::string("--url=https://jupiter.devtools.epicgames.com")); + CHECK_EQ(v2Stripped[5], std::string("--namespace=ue.oplog")); + CHECK_EQ(v2Stripped[6], std::string("--bucket=citysample.packaged-build.fortnite-main.windows")); + CHECK_EQ(v2Stripped[7], std::string("c:\\just\\a\\path")); + CHECK_EQ(v2Stripped[8], std::string("--access-token-path=\"C:\\Users\\dan.engelbrecht\\jupiter-token.json\"")); + CHECK_EQ(v2Stripped[9], std::string("\"D:\\Dev\\Spaced Folder\\Target\"")); + CHECK_EQ(v2Stripped[10], std::string("--alt-path=\"D:\\Dev\\Spaced Folder2\\Target\"")); + CHECK_EQ(v2Stripped[11], std::string("07dn23ifiwesnvoasjncasab")); + CHECK_EQ(v2Stripped[12], std::string("--build-part-name")); + CHECK_EQ(v2Stripped[13], std::string("win64,linux,ps5")); +} + +#endif +} // namespace zen |