87 lines
2.1 KiB
C++
87 lines
2.1 KiB
C++
#include <dirent.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <luna/String.h>
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#include <os/Directory.h>
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#include <os/FileSystem.h>
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#include <pwd.h>
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#include <stdlib.h>
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#include <sys/stat.h>
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#include <sys/syscall.h>
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#include <unistd.h>
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namespace os::FileSystem
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{
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bool exists(const Path& path)
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{
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struct stat st;
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if (fstatat(path.dirfd(), path.name().chars(), &st, path.is_empty_path()) < 0) return false;
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return true;
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}
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bool is_directory(const Path& path)
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{
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struct stat st;
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if (fstatat(path.dirfd(), path.name().chars(), &st, path.is_empty_path()) < 0) return false;
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return S_ISDIR(st.st_mode);
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}
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Result<void> create_directory(StringView path, mode_t mode)
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{
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long rc = syscall(SYS_mkdir, path.chars(), mode);
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return Result<void>::from_syscall(rc);
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}
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Result<void> remove(const Path& path)
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{
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long rc = syscall(SYS_unlinkat, path.dirfd(), path.name().chars(), 0);
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return Result<void>::from_syscall(rc);
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}
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Result<void> remove_tree(const Path& path)
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{
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auto rc = remove(path);
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if (!rc.has_error()) return {};
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if (rc.error() != ENOTEMPTY) return rc.release_error();
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auto dir = TRY(os::Directory::open(path));
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Vector<String> entries = TRY(dir->list(os::Directory::Filter::ParentAndBase));
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for (const auto& entry : entries) { TRY(remove_tree({ dir->fd(), entry.view() })); }
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return remove(path);
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}
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Result<String> working_directory()
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{
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char* ptr = getcwd(NULL, 0);
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if (!ptr) return err(errno);
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return String { ptr };
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}
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Result<String> home_directory()
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{
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char* home = getenv("HOME");
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if (home) return String::from_cstring(home);
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struct passwd* pw = getpwuid(getuid());
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if (!pw) return err(ENOENT);
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return String::from_cstring(pw->pw_dir);
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}
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Result<void> change_directory(StringView path)
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{
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long rc = syscall(SYS_chdir, path.chars());
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return Result<void>::from_syscall(rc);
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}
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}
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