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//===- Reproduce.cpp - Utilities for creating reproducers -----------------===//
//
// The LLVM Linker
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lld/Common/Reproduce.h"
#include "llvm/Option/Arg.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Path.h"
using namespace lld;
using namespace llvm;
using namespace llvm::sys;
// Makes a given pathname an absolute path first, and then remove
// beginning /. For example, "../foo.o" is converted to "home/john/foo.o",
// assuming that the current directory is "/home/john/bar".
// Returned string is a forward slash separated path even on Windows to avoid
// a mess with backslash-as-escape and backslash-as-path-separator.
std::string lld::relativeToRoot(StringRef Path) {
SmallString<128> Abs = Path;
if (fs::make_absolute(Abs))
return Path;
path::remove_dots(Abs, /*remove_dot_dot=*/true);
// This is Windows specific. root_name() returns a drive letter
// (e.g. "c:") or a UNC name (//net). We want to keep it as part
// of the result.
SmallString<128> Res;
StringRef Root = path::root_name(Abs);
if (Root.endswith(":"))
Res = Root.drop_back();
else if (Root.startswith("//"))
Res = Root.substr(2);
path::append(Res, path::relative_path(Abs));
return path::convert_to_slash(Res);
}
// Quote a given string if it contains a space character.
std::string lld::quote(StringRef S) {
if (S.contains(' '))
return ("\"" + S + "\"").str();
return S;
}
std::string lld::rewritePath(StringRef S) {
if (fs::exists(S))
return relativeToRoot(S);
return S;
}
std::string lld::toString(const opt::Arg &Arg) {
std::string K = Arg.getSpelling();
if (Arg.getNumValues() == 0)
return K;
std::string V = quote(Arg.getValue());
if (Arg.getOption().getRenderStyle() == opt::Option::RenderJoinedStyle)
return K + V;
return K + " " + V;
}
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