新建项目

middleware/letter-shell/extensions/fs_support/shell_fs.c

@@ -0,0 +1,74 @@
+/**
+ * @file shell_fs.c
+ * @author Letter (nevermindzzt@gmail.com)
+ * @brief shell file system support
+ * @version 0.1
+ * @date 2020-07-22
+ * 
+ * @copyright (c) 2020 Letter
+ * 
+ */
+#include "shell_fs.h"
+#include "shell.h"
+#include "stdio.h"
+
+/**
+ * @brief 改变当前路径(shell调用)
+ * 
+ * @param dir 路径
+ */
+void shellCD(char *dir)
+{
+    Shell *shell = shellGetCurrent();
+    ShellFs *shellFs = shellCompanionGet(shell, SHELL_COMPANION_ID_FS);
+    SHELL_ASSERT(shellFs, return);
+    if (shellFs->chdir(dir) != 0)
+    {
+        shellWriteString(shell, "error: ");
+        shellWriteString(shell, dir);
+        shellWriteString(shell, " is not a directory\r\n");
+    }
+    shellFs->getcwd(shellFs->info.path, shellFs->info.pathLen);
+}
+SHELL_EXPORT_CMD(
+SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_CMD_FUNC)|SHELL_CMD_DISABLE_RETURN,
+cd, shellCD, change dir);
+
+/**
+ * @brief 列出文件(shell调用)
+ * 
+ */
+void shellLS(void)
+{
+    size_t count;
+    char *buffer;
+
+    Shell *shell = shellGetCurrent();
+    ShellFs *shellFs = shellCompanionGet(shell, SHELL_COMPANION_ID_FS);
+    SHELL_ASSERT(shellFs, return);
+
+    buffer = SHELL_MALLOC(SHELL_FS_LIST_FILE_BUFFER_MAX);
+    SHELL_ASSERT(buffer, return);
+    count = shellFs->listdir(shellGetPath(shell), buffer, SHELL_FS_LIST_FILE_BUFFER_MAX);
+
+    shellWriteString(shell, buffer);
+
+    SHELL_FREE(buffer);
+}
+SHELL_EXPORT_CMD(
+SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_CMD_FUNC)|SHELL_CMD_DISABLE_RETURN,
+ls, shellLS, list all files);
+
+/**
+ * @brief 初始化shell文件系统支持
+ * 
+ * @param shellFs shell文件系统对象
+ * @param pathBuffer shell路径缓冲
+ * @param pathLen 路径缓冲区大小
+ */
+void shellFsInit(ShellFs *shellFs, char *pathBuffer, size_t pathLen)
+{
+    shellFs->info.path = pathBuffer;
+    shellFs->info.pathLen = pathLen;
+    shellFs->getcwd(shellFs->info.path, pathLen);
+}