From 4f9ea02126878f0c4d61e226a4ce6c2e77678864 Mon Sep 17 00:00:00 2001
From: Max Wash <mbswash@gmail.com>
Date: Mon, 10 Feb 2025 13:59:20 +0000
Subject: [PATCH] meta: add module for disk I/O functionality

---
 CMakeLists.txt                 |  2 +-
 io/CMakeLists.txt              |  3 +++
 io/include/blue/io.h           |  0
 io/include/blue/io/directory.h | 34 +++++++++++++++++++++++++++++
 io/include/blue/io/path.h      | 25 ++++++++++++++++++++++
 io/sys/darwin/directory.c      | 39 ++++++++++++++++++++++++++++++++++
 io/sys/darwin/path.c           |  0
 7 files changed, 102 insertions(+), 1 deletion(-)
 create mode 100644 io/CMakeLists.txt
 create mode 100644 io/include/blue/io.h
 create mode 100644 io/include/blue/io/directory.h
 create mode 100644 io/include/blue/io/path.h
 create mode 100644 io/sys/darwin/directory.c
 create mode 100644 io/sys/darwin/path.c

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 77d8307..38343db 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,7 +5,7 @@ include (TestBigEndian)
 
 set_property(GLOBAL PROPERTY USE_FOLDERS ON)
 
-set(b_modules core object term cmd)
+set(b_modules core object term cmd io)
 
 set(b_system_name ${CMAKE_SYSTEM_NAME})
 string(TOLOWER ${b_system_name} b_system_name)
diff --git a/io/CMakeLists.txt b/io/CMakeLists.txt
new file mode 100644
index 0000000..fd25714
--- /dev/null
+++ b/io/CMakeLists.txt
@@ -0,0 +1,3 @@
+include(../cmake/Templates.cmake)
+
+add_bluelib_module(NAME io DEPENDENCIES core)
diff --git a/io/include/blue/io.h b/io/include/blue/io.h
new file mode 100644
index 0000000..e69de29
diff --git a/io/include/blue/io/directory.h b/io/include/blue/io/directory.h
new file mode 100644
index 0000000..6021f07
--- /dev/null
+++ b/io/include/blue/io/directory.h
@@ -0,0 +1,34 @@
+#ifndef BLUELIB_IO_DIRECTORY_H_
+#define BLUELIB_IO_DIRECTORY_H_
+
+#include <blue/core/iterator.h>
+#include <blue/core/misc.h>
+#include <blue/core/status.h>
+
+#define B_DIRECTORY_ROOT ((b_directory *)NULL)
+
+typedef struct b_directory b_directory;
+
+struct z__b_directory_iterator;
+
+typedef struct b_directory_iterator {
+	b_iterator _base;
+	char *filename;
+	char *filepath;
+	struct z__b_directory_iterator *_z;
+} b_directory_iterator;
+
+#define b_directory_foreach(it, dir, flags)                                       \
+	for (int z__b_unique_name() = b_directory_iterator_begin(dir, it, flags); \
+	     b_directory_iterator_is_valid(it); b_directory_iterator_next(it))
+
+BLUE_API b_status b_directory_open(
+	b_directory *root, const char *path, b_directory **out);
+
+BLUE_API int b_directory_iterator_begin(
+	b_directory *directory, b_directory_iterator *it);
+BLUE_API bool b_directory_iterator_next(b_directory_iterator *it);
+BLUE_API b_status b_directory_iterator_erase(b_directory_iterator *it);
+BLUE_API bool b_directory_iterator_is_valid(const b_directory_iterator *it);
+
+#endif
diff --git a/io/include/blue/io/path.h b/io/include/blue/io/path.h
new file mode 100644
index 0000000..30590d2
--- /dev/null
+++ b/io/include/blue/io/path.h
@@ -0,0 +1,25 @@
+#ifndef BLUELIB_IO_PATH_H_
+#define BLUELIB_IO_PATH_H_
+
+#include <blue/core/misc.h>
+#include <blue/core/status.h>
+#include <blue/object/object.h>
+#include <stddef.h>
+
+typedef struct b_path b_path;
+
+BLUE_API b_status b_path_create(b_path **out);
+BLUE_API b_status b_path_create_root(b_path **out);
+BLUE_API b_status b_path_create_cwd(b_path **out);
+BLUE_API b_status b_path_create_from_cstr(const char *path, b_path **out);
+
+BLUE_API b_status b_path_join(const b_path *paths[], size_t nr_paths, b_path **out);
+
+BLUE_API b_status b_path_make_absolute(const b_path *in, b_path **out);
+BLUE_API b_status b_path_make_relative(const b_path *in, b_path **out);
+BLUE_API b_status b_path_make_canonical(const b_path *in, b_path **out);
+
+BLUE_API b_path *b_path_retain(b_path *path);
+BLUE_API void b_path_release(b_path *path);
+
+#endif
diff --git a/io/sys/darwin/directory.c b/io/sys/darwin/directory.c
new file mode 100644
index 0000000..1c63c8a
--- /dev/null
+++ b/io/sys/darwin/directory.c
@@ -0,0 +1,39 @@
+#include <blue/io/directory.h>
+#include <fts.h>
+
+struct b_directory {
+	int fd;
+	char *abs_path;
+};
+
+struct z__b_directory_iterator {
+	FTS *fts;
+	FTSENT *node;
+};
+
+enum b_status b_directory_open(
+	struct b_directory *root, const char *path, struct b_directory **out)
+{
+	return B_SUCCESS;
+}
+
+int b_directory_iterator_begin(
+	struct b_directory *directory, struct b_directory_iterator *it)
+{
+	return 0;
+}
+
+bool b_directory_iterator_next(struct b_directory_iterator *it)
+{
+	return false;
+}
+
+enum b_status b_directory_iterator_erase(struct b_directory_iterator *it)
+{
+	return B_SUCCESS;
+}
+
+bool b_directory_iterator_is_valid(const struct b_directory_iterator *it)
+{
+	return false;
+}
diff --git a/io/sys/darwin/path.c b/io/sys/darwin/path.c
new file mode 100644
index 0000000..e69de29