From 9b2a662f26e3eb8e58b465290d961cda410e56a5 Mon Sep 17 00:00:00 2001
From: Aoran Zeng <ccmywish@qq.com>
Date: Sun, 10 Sep 2023 13:15:34 +0800
Subject: [PATCH] Add `xy_file_exist()`

---
 Makefile  |  1 +
 test_xy.c |  4 +++-
 xy.h      | 22 +++++++++++++++++++++-
 3 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 6f7f512..3bf88e8 100644
--- a/Makefile
+++ b/Makefile
@@ -31,6 +31,7 @@ test: $(TARGET)
 	./$(TARGET) get  ruby
 	./$(TARGET) get  python
 
+.PHONY: xy
 xy:
 	@$(CC) test_xy.c -o xy
 	@./xy
diff --git a/test_xy.c b/test_xy.c
index 5d4e7e2..bd73039 100644
--- a/test_xy.c
+++ b/test_xy.c
@@ -3,7 +3,7 @@
  * License       : MIT
  * Authors       : Aoran Zeng <ccmywish@qq.com>
  * Created on    : <2023-08-30>
- * Last modified : <2023-09-09>
+ * Last modified : <2023-09-10>
  *
  * test_xy:
  *
@@ -70,5 +70,7 @@ main (int argc, char const *argv[])
   xy_info("信息: 输出信息内容");
   xy_warn("警告：输出警告内容");
   xy_error("错误：输出错误内容");
+
+  putb(xy_file_exist("chsrc.png"));
   return 0;
 }
diff --git a/xy.h b/xy.h
index 41edf1a..60614a3 100644
--- a/xy.h
+++ b/xy.h
@@ -30,6 +30,8 @@
 
 #ifdef _WIN32
 
+  #include <io.h> // For access()
+
   static bool xy_on_windows = true;
   static bool xy_on_linux   = false;
   static bool xy_on_macos   = false;
@@ -445,7 +447,8 @@ xy_str_strip (const char* str)
   return new;
 }
 
-/* *
+
+/**
  * 执行cmd后拿到cmd的执行结果 注意从外部free掉这段内存
  * 注意：执行结果后面有回车换行
  */
@@ -491,5 +494,22 @@ xy_getcmd(const char * cmd, bool (*func)(const char*))
 }
 
 
+/**
+ * @note Windows上，`path` 不要夹带变量名，因为最终 access() 不会帮你转换
+ */
+bool
+xy_file_exist(char* path)
+{
+  char* newpath = path;
+  if (xy_on_windows)
+  {
+    char* home = getenv("USERPROFILE");
+    if (xy_str_start_with(path, "~")) {
+      newpath = xy_2strjoin(home, path+1);
+    }
+  }
+  return access(newpath, 0) ? false : true;
+}
+
 
 #endif