dotnet-installer/src/corehost/common/utils.cpp
2016-01-06 18:15:41 -08:00

81 lines
2 KiB
C++

// Copyright (c) .NET Foundation and contributors. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
#include "utils.h"
#include "trace.h"
bool coreclr_exists_in_dir(const pal::string_t& candidate)
{
pal::string_t test(candidate);
append_path(&test, LIBCORECLR_NAME);
trace::verbose(_X("checking for CoreCLR in default location: %s"), test.c_str());
return pal::file_exists(test);
}
bool ends_with(const pal::string_t& value, const pal::string_t& suffix)
{
return suffix.length() <= value.length() &&
(0 == value.compare(value.length() - suffix.length(), suffix.length(), suffix));
}
void append_path(pal::string_t* path1, const pal::char_t* path2)
{
if (pal::is_path_rooted(path2))
{
path1->assign(path2);
}
else
{
if (path1->empty() || path1->back() != DIR_SEPARATOR)
{
path1->push_back(DIR_SEPARATOR);
}
path1->append(path2);
}
}
pal::string_t get_executable(const pal::string_t& filename)
{
pal::string_t result(filename);
if (ends_with(result, _X(".exe")))
{
// We need to strip off the old extension
result.erase(result.length() - 4);
}
return result;
}
pal::string_t get_filename(const pal::string_t& path)
{
// Find the last dir separator
auto path_sep = path.find_last_of(DIR_SEPARATOR);
if (path_sep == pal::string_t::npos)
{
return pal::string_t(path);
}
return path.substr(path_sep + 1);
}
pal::string_t get_directory(const pal::string_t& path)
{
// Find the last dir separator
auto path_sep = path.find_last_of(DIR_SEPARATOR);
if (path_sep == pal::string_t::npos)
{
return pal::string_t(path);
}
return path.substr(0, path_sep);
}
void replace_char(pal::string_t* path, pal::char_t match, pal::char_t repl)
{
int pos = 0;
while ((pos = path->find(match, pos)) != pal::string_t::npos)
{
(*path)[pos] = repl;
}
}