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Refactor argv[0] management, related path searches etc.

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This commit is contained in:
Martin 2015-09-27 15:52:50 +02:00
parent 9f1f1b6fff
commit 1670323ebb
11 changed files with 132 additions and 112 deletions
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56
driver/exe_path.cpp Normal file
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@ -0,0 +1,56 @@
//===-- exe_path.cpp ------------------------------------------------------===//
//
// LDC – the LLVM D compiler
//
// This file is distributed under the BSD-style LDC license. See the LICENSE
// file for details.
//
//===----------------------------------------------------------------------===//
#include "exe_path.h"
#include <llvm/Support/Path.h>
#if LDC_LLVM_VER >= 304
#include <llvm/Support/FileSystem.h>
#endif
using std::string;
namespace path = llvm::sys::path;
namespace { string exePath; }
void exe_path::initialize(const char* arg0, void* mainAddress)
{
assert(exePath.empty());
#if LDC_LLVM_VER >= 304
exePath = llvm::sys::fs::getMainExecutable(arg0, mainAddress);
#else
exePath = llvm::sys::Path::GetMainExecutable(arg0, mainAddress).str();
#endif
}
const string& exe_path::getExePath()
{
assert(!exePath.empty());
return exePath;
}
string exe_path::getBinDir()
{
assert(!exePath.empty());
return path::parent_path(exePath);
}
string exe_path::getBaseDir()
{
string binDir = getBinDir();
assert(!binDir.empty());
return path::parent_path(binDir);
}
string exe_path::prependBinDir(const char* suffix)
{
llvm::SmallString<128> r(getBinDir());
path::append(r, suffix);
return r.str();
}