refactoring

1 files changed, 37 insertions, 0 deletions

diff --git a/nihil.posix/fexecvp.ccm b/nihil.posix/fexecvp.ccm
new file mode 100644
index 0000000..d61240c
--- /dev/null
+++ b/nihil.posix/fexecvp.ccm
@@ -0,0 +1,37 @@
+// This source code is released into the public domain.
+module;
+
+#include <expected>
+#include <filesystem>
+#include <format>
+#include <string>
+
+#include "nihil.hh"
+
+export module nihil.posix:fexecvp;
+
+#ifdef NIHIL_HAVE_FEXECVE
+
+import nihil.error;
+import :argv;
+import :execv;
+import :open_in_path;
+
+namespace nihil {
+
+// execvp: equivalent to execv, except the command is passed as
+// a filename instead of a file descriptor.  If the filename is not
+// an absolute path, it will be searched for in $PATH.
+export [[nodiscard]] auto
+fexecvp(std::filesystem::path const &file, argv &&argv) -> std::expected<execv, error>
+{
+	auto execfd = open_in_path(file);
+	if (!execfd)
+		return std::unexpected(error(
+			std::format("executable not found in path: {}", file)));
+	return fexecv(std::move(*execfd), std::move(argv));
+}
+
+} // namespace nihil
+
+#endif	// NIHIL_HAVE_FEXECVE