LibCore+Userland: Remove File::ensure_parent_directories

We have a much safer and more powerful alternative now, so let's move
the few users over.

Userland/DevTools/HackStudio/Dialogs/NewProjectDialog.cpp

@@ -12,6 +12,7 @@
 
 #include <AK/LexicalPath.h>
 #include <AK/String.h>
+#include <LibCore/Directory.h>
 #include <LibCore/File.h>
 #include <LibGUI/BoxLayout.h>
 #include <LibGUI/Button.h>
@@ -200,8 +201,8 @@ void NewProjectDialog::do_create_project()
         if (result != GUI::MessageBox::ExecResult::ExecYes)
             return;
 
-        auto created = Core::File::ensure_parent_directories(maybe_project_full_path.value());
-        if (!created) {
+        auto created = Core::Directory::create(maybe_project_full_path.value(), Core::Directory::CreateDirectories::Yes);
+        if (!created.is_error()) {
             GUI::MessageBox::show_error(this, String::formatted("Could not create directory {}", create_in));
             return;
         }

Userland/Libraries/LibCore/File.cpp

@@ -181,42 +181,6 @@ String File::real_path_for(String const& filename)
     return real_path;
 }
 
-bool File::ensure_parent_directories(String const& path)
-{
-    char* parent_buffer = strdup(path.characters());
-    ScopeGuard free_buffer = [parent_buffer] { free(parent_buffer); };
-
-    char const* parent = dirname(parent_buffer);
-
-    return ensure_directories(parent);
-}
-
-bool File::ensure_directories(String const& path)
-{
-    VERIFY(path.starts_with("/"));
-
-    int saved_errno = 0;
-    ScopeGuard restore_errno = [&saved_errno] { errno = saved_errno; };
-
-    int rc = mkdir(path.characters(), 0755);
-    saved_errno = errno;
-
-    if (rc == 0 || errno == EEXIST)
-        return true;
-
-    if (errno != ENOENT)
-        return false;
-
-    bool ok = ensure_parent_directories(path);
-    saved_errno = errno;
-    if (!ok)
-        return false;
-
-    rc = mkdir(path.characters(), 0755);
-    saved_errno = errno;
-    return rc == 0;
-}
-
 String File::current_working_directory()
 {
     char* cwd = getcwd(nullptr, 0);

Userland/Libraries/LibCore/File.h

@@ -37,8 +37,6 @@ public:
 
     static bool exists(String const& filename);
     static ErrorOr<size_t> size(String const& filename);
-    static bool ensure_parent_directories(String const& path);
-    static bool ensure_directories(String const& path);
     static String current_working_directory();
     static String absolute_path(String const& path);
 

Userland/Libraries/LibCore/LockFile.cpp

@@ -4,7 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <LibCore/File.h>
+#include <LibCore/Directory.h>
 #include <LibCore/LockFile.h>
 #include <errno.h>
 #include <fcntl.h>
@@ -16,7 +16,7 @@ namespace Core {
 LockFile::LockFile(char const* filename, Type type)
     : m_filename(filename)
 {
-    if (!Core::File::ensure_parent_directories(m_filename))
+    if (Core::Directory::create(LexicalPath(m_filename).parent(), Core::Directory::CreateDirectories::Yes).is_error())
         return;
 
     m_fd = open(filename, O_RDONLY | O_CREAT | O_CLOEXEC, 0666);

Userland/Services/SystemServer/Service.cpp

@@ -11,6 +11,7 @@
 #include <AK/JsonObject.h>
 #include <AK/StringBuilder.h>
 #include <LibCore/ConfigFile.h>
+#include <LibCore/Directory.h>
 #include <LibCore/File.h>
 #include <LibCore/SocketAddress.h>
 #include <LibCore/System.h>
@@ -34,8 +35,7 @@ void Service::setup_socket(SocketDescriptor& socket)
 {
     VERIFY(socket.fd == -1);
 
-    auto ok = Core::File::ensure_parent_directories(socket.path);
-    VERIFY(ok);
+    MUST(Core::Directory::create(LexicalPath(socket.path).parent(), Core::Directory::CreateDirectories::Yes));
 
     // Note: we use SOCK_CLOEXEC here to make sure we don't leak every socket to
     // all the clients. We'll make the one we do need to pass down !CLOEXEC later

Userland/Utilities/install.cpp

@@ -7,6 +7,7 @@
 #include <AK/LexicalPath.h>
 #include <AK/Vector.h>
 #include <LibCore/ArgsParser.h>
+#include <LibCore/Directory.h>
 #include <LibCore/File.h>
 #include <LibCore/FilePermissionsMask.h>
 #include <LibCore/System.h>
@@ -35,7 +36,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
 
     if (create_leading_dest_components) {
         String destination_dir_absolute = Core::File::absolute_path(destination_dir);
-        Core::File::ensure_directories(destination_dir_absolute);
+        MUST(Core::Directory::create(destination_dir_absolute, Core::Directory::CreateDirectories::Yes));
     }
 
     for (auto const& source : sources) {

Userland/Utilities/tar.cpp

@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include "LibCore/Directory.h"
 #include <AK/Assertions.h>
 #include <AK/LexicalPath.h>
 #include <AK/Span.h>
@@ -136,11 +137,12 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
                 Archive::TarFileStream file_stream = tar_stream.file_contents();
 
                 String absolute_path = Core::File::absolute_path(filename);
+                auto parent_path = LexicalPath(absolute_path).parent();
 
                 switch (header.type_flag()) {
                 case Archive::TarFileType::NormalFile:
                 case Archive::TarFileType::AlternateNormalFile: {
-                    Core::File::ensure_parent_directories(absolute_path);
+                    MUST(Core::Directory::create(parent_path, Core::Directory::CreateDirectories::Yes));
 
                     int fd = TRY(Core::System::open(absolute_path, O_CREAT | O_WRONLY, header.mode()));
 
@@ -153,13 +155,13 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
                     break;
                 }
                 case Archive::TarFileType::SymLink: {
-                    Core::File::ensure_parent_directories(absolute_path);
+                    MUST(Core::Directory::create(parent_path, Core::Directory::CreateDirectories::Yes));
 
                     TRY(Core::System::symlink(header.link_name(), absolute_path));
                     break;
                 }
                 case Archive::TarFileType::Directory: {
-                    Core::File::ensure_parent_directories(absolute_path);
+                    MUST(Core::Directory::create(parent_path, Core::Directory::CreateDirectories::Yes));
 
                     auto result_or_error = Core::System::mkdir(absolute_path, header.mode());
                     if (result_or_error.is_error() && result_or_error.error().code() != EEXIST)