typing a directory alone cds you to it

src/lexer/lexer.c

@@ -136,6 +136,11 @@ void msh_lexer_execute(msh_lexer *lexer) {
   if (msh_try_builtin(cmd, args)) {
     exec_success = 1;
   }
+  /* If the command is a folder, cd to it */
+  else if (msh_path_is_directory(cmd)) {
+    msh_builtin_cd(cmd);
+    exec_success = 1;
+  }
   /* If the command is a file, first try and execute it. */
   else if (msh_path_exists(cmd)) {
     msh_execute(cmd, args);

src/system/linux/linux.c

@@ -4,6 +4,7 @@
 
 #include <signal.h>
 #include <sys/file.h>
+#include <sys/stat.h>
 #include <sys/wait.h>
 
 char msh_path_seperator = '/';
@@ -128,11 +129,12 @@ void msh_set_working_directory(const char *dir) { SYSCALL(chdir, dir); }
 
 int msh_path_exists(char *file) { return SYSCALL(access, file, F_OK) == 0; };
 
-void msh_backend_init() {
-  msh_linux_env_map_init();
-
-  msh_env_set("TERMF", "test");
-  msh_env_set("TERM", "test");
+int msh_path_is_directory(char *path) {
+  struct stat path_stat;
+  SYSCALL(stat, path, &path_stat);
+  return S_ISDIR(path_stat.st_mode);
 };
 
+void msh_backend_init() { msh_linux_env_map_init(); };
+
 void msh_backend_deinit() { msh_linux_env_map_deinit(); };

src/system/system.h

@@ -45,7 +45,12 @@ SIZE_TYPE msh_file_size(msh_file *file);
 /*
  * Return whether the path exists
  */
-int msh_path_exists(char *file);
+int msh_path_exists(char *path);
+
+/*
+ * Return whether the path is a directory.
+ */
+int msh_path_is_directory(char *path);
 
 /*
  * Read up to x characters from file into ptr