refactor(ui): simplify stdin handling

2 files changed, 16 insertions, 32 deletions

diff --git a/src/nvim/api/ui.c b/src/nvim/api/ui.c
index 997f0c218a..f449ccc3c7 100644
--- a/src/nvim/api/ui.c
+++ b/src/nvim/api/ui.c
@@ -283,6 +283,22 @@ static void ui_set_option(UI *ui, bool init, String name, Object value, Error *e
     return;
   }
 
+  if (strequal(name.data, "stdin_fd")) {
+    if (value.type != kObjectTypeInteger || value.data.integer < 0) {
+      api_set_error(error, kErrorTypeValidation, "stdin_fd must be a non-negative Integer");
+      return;
+    }
+
+    if (starting != NO_SCREEN) {
+      api_set_error(error, kErrorTypeValidation,
+                    "stdin_fd can only be used with first attached ui");
+      return;
+    }
+
+    stdin_fd = (int)value.data.integer;
+    return;
+  }
+
   // LEGACY: Deprecated option, use `ext_cmdline` instead.
   bool is_popupmenu = strequal(name.data, "popupmenu_external");
 
diff --git a/src/nvim/api/vim.c b/src/nvim/api/vim.c
index 9c34c912c0..061653c5af 100644
--- a/src/nvim/api/vim.c
+++ b/src/nvim/api/vim.c
@@ -2661,35 +2661,3 @@ end:
   xfree(cmdline);
   return result;
 }
-
-/// Invokes the nvim server to read from stdin when it is not a tty
-///
-/// It enables functionalities like:
-/// - echo "1f u c4n r34d th1s u r34lly n33d t0 g37 r357"| nvim -
-/// - cat path/to/a/file | nvim -
-/// It has to be called before |nvim_ui_attach()| is called in order
-/// to ensure proper functioning.
-///
-/// @param channel_id: The channel id of the GUI-client
-/// @param filedesc: The file descriptor of the GUI-client process' stdin
-/// @param implicit: Tells if read_stdin call is implicit.
-///                  i.e for cases like `echo xxx | nvim`
-/// @param[out] err Error details, if any
-void nvim_read_stdin(uint64_t channel_id, Integer filedesc, Error *err)
-FUNC_API_SINCE(6) FUNC_API_REMOTE_ONLY
-{
-  if (starting != NO_SCREEN) {
-    api_set_error(err, kErrorTypeValidation,
-                  "nvim_read_stdin must be called before nvim_ui_attach");
-    return;
-  }
-  if (filedesc < 0) {
-    api_set_error(err, kErrorTypeValidation,
-                  "file descriptor must be non-negative");
-    return;
-  }
-
-  stdin_filedesc = (int)filedesc;
-  implicit_readstdin = implicit;
-  return;
-}