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Tramp and conversion of \r\n into \n

From: yyoncho
Subject: Tramp and conversion of \r\n into \n
Date: Wed, 9 Dec 2020 09:34:27 +0200

Hi Michael,

I am writing this regarding the following issue on lsp-mode's bug tracker: https://github.com/emacs-lsp/lsp-mode/issues/2375 . The issue is that \r\n are converted to \n but only when connecting to linux from mac.

Using (set-process-coding-system result 'no-conversion 'no-conversion) and settinginhibit-eol-conversion to t does not work(or at least this is what was reported by the users).

Can you suggest what the issue might be?

Let me know if you need more information: Here it is the relevant code which we use for opening the connection: 

 (let* ((final-command (lsp-resolve-final-function local-command))
                          ;; wrap with stty to disable converting \r to \n
                          (process-name (generate-new-buffer-name name))
                          (wrapped-command (append '("stty" "raw" ";")
                                                    (concat "2>"
                                                            (or (when generate-error-file-fn
                                                                  (funcall generate-error-file-fn name))
                                                                (format "/tmp/%s-%s-stderr" name
                                                                        (cl-incf lsp--stderr-index)))))))
                           (lsp--compute-process-environment environment-fn)))
                     (let ((proc (apply 'start-file-process-shell-command process-name
                                        (format "*%s*" process-name) wrapped-command)))
                       (set-process-sentinel proc sentinel)
                       (set-process-filter proc filter)
                       (set-process-query-on-exit-flag proc nil)
                       (set-process-coding-system proc 'binary 'binary)
                       (cons proc proc)))


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