43 lines
1.1 KiB
C++
43 lines
1.1 KiB
C++
/*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* Copyright 2020, Danny Robson <danny@nerdcruft.net>
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*/
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#include "paths.hpp"
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#include "posix/except.hpp"
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#include "debug/assert.hpp"
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#include <memory>
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#include <wordexp.h>
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///////////////////////////////////////////////////////////////////////////////
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std::filesystem::path
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cruft::paths::temp (void)
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{
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if (char const *tmpdir = getenv ("TMPDIR"); tmpdir)
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return tmpdir;
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return "/tmp";
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}
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///////////////////////////////////////////////////////////////////////////////
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std::filesystem::path
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cruft::paths::expand (std::filesystem::path const &val)
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{
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wordexp_t words;
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posix::error::try_call (wordexp, val.c_str (), &words, WRDE_NOCMD | WRDE_UNDEF);
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std::unique_ptr<wordexp_t, decltype(&wordfree)> cleanup {&words, &wordfree};
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if (words.we_wordc != 1)
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throw std::runtime_error ("path expansion is not singular");
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CHECK_EQ (words.we_offs, 0u);
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return words.we_wordv[0];
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} |