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Diffstat (limited to 'nihil.posix/find_in_path.cc')
| -rw-r--r-- | nihil.posix/find_in_path.cc | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/nihil.posix/find_in_path.cc b/nihil.posix/find_in_path.cc deleted file mode 100644 index 6be963c..0000000 --- a/nihil.posix/find_in_path.cc +++ /dev/null @@ -1,52 +0,0 @@ -/* - * This source code is released into the public domain. - */ - -module; - -#include <filesystem> -#include <optional> -#include <ranges> -#include <string> - -#include <fcntl.h> -#include <paths.h> - -module nihil.posix; - -namespace nihil { - -auto find_in_path(std::filesystem::path const &file) - -> std::optional<fd> -{ - using namespace std::literals; - - auto try_open = - [](std::filesystem::path const &file) -> std::optional<fd> - { - auto ret = open(file, O_EXEC); - if (ret) - return {std::move(*ret)}; - return {}; - }; - - // Absolute pathname skips the search. - if (file.is_absolute()) - return try_open(file); - - auto path = getenv("PATH").value_or(_PATH_DEFPATH); - - for (auto &&dir : path | std::views::split(':')) { - // An empty $PATH element means cwd. - auto sdir = dir.empty() - ? std::filesystem::path(".") - : std::filesystem::path(std::string_view(dir)); - - if (auto ret = try_open(sdir / file); ret) - return ret; - } - - return {}; -} - -} // namespace nihil |
