TUI: set os/input.c:global_fd to input->in_fd #10174

Problem: When we changed startup to wait for the TUI (like a remote UI),
         we forgot to set os/input.c:global_fd.  That used to be done by
         input_start().

Solution: Initialize os/input.c:global_fd before initializing libtermkey
          (termkey_new_abstract) so that tui_get_stty_erase() and
          friends can inspect the correct fd.

fixes #10134
close #10174

1 files changed, 6 insertions, 1 deletions

diff --git a/src/nvim/os/input.c b/src/nvim/os/input.c
index 8070f4c420..5d43dff5c1 100644
--- a/src/nvim/os/input.c
+++ b/src/nvim/os/input.c
@@ -50,6 +50,11 @@ void input_init(void)
   input_buffer = rbuffer_new(INPUT_BUFFER_SIZE + MAX_KEY_CODE_LEN);
 }
 
+void input_global_fd_init(int fd)
+{
+  global_fd = fd;
+}
+
 /// Global TTY (or pipe for "-es") input stream, before UI starts.
 int input_global_fd(void)
 {
@@ -62,7 +67,7 @@ void input_start(int fd)
     return;
   }
 
-  global_fd = fd;
+  input_global_fd_init(fd);
   rstream_init_fd(&main_loop, &read_stream, fd, READ_BUFFER_SIZE);
   rstream_start(&read_stream, input_read_cb, NULL);
 }