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#!/usr/bin/emacs --script
;;; Copyright (c) 2016 Cisco and/or its affiliates.
;;; Licensed under the Apache License, Version 2.0 (the "License");
;;; you may not use this file except in compliance with the License.
;;; You may obtain a copy of the License at:
;;;
;;; http://www.apache.org/licenses/LICENSE-2.0
;;;
;;; Unless required by applicable law or agreed to in writing, software
;;; distributed under the License is distributed on an "AS IS" BASIS,
;;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
;;; See the License for the specific language governing permissions and
;;; limitations under the License.
;; Insert style boilerplate if it's not already there
;;
;; Breaking the string in half keeps emacs
;; from trying to interpret the local variable
;; settings e.g. when it reads the lisp source code
(defun insert-style-boilerplate () (interactive)
(save-excursion
(goto-char (point-min))
(if (eq nil (search-forward "coding-style-patch-verification"
(point-max) t))
(let ((junk 0)) (goto-char (point-max))
(insert "
/*
* fd.io coding-style-patch-verification: ON
*
* Local Var" "iables:
* eval: (c-set-style \"gnu\")
* End:
*/")))))
;; (cons xxx <list>) means insert xxx at the head of <list>
;; Build a sorted list of *INDENT-OFF* lines, by searching
;; backwards. The initial (setq indent-offset-list nil)
;; results in (cdr <last-cell>) nil, which makes it a proper list
(defun find-indent-offs () (interactive)
(save-excursion
(if (boundp 'indent-offset-list)
(makunbound 'indent-offset-list))
(setq indent-offset-list nil)
(goto-char (point-max))
(while (search-backward "*INDENT-OFF*" (point-min) t)
(move-beginning-of-line nil)
(setq indent-offset-list (cons (point) indent-offset-list))
(previous-line))))
;; Insert indent-off ... indent-on brackets around
;; a certain xxx_foreach macro, etc. which "indent"
;; completely screws up. Doesn't handle nesting, of which there
;; are few examples (fortunately).
(defun fix-initializer (what) (interactive)
(find-indent-offs)
(save-excursion
(goto-char (point-min))
(while (search-forward-regexp what (point-max) t)
(move-beginning-of-line nil)
(previous-line)
(let ((index 0)(pointval 0))
(while (and (< pointval (point))(elt indent-offset-list index))
(setq pointval (elt indent-offset-list index))
(setq index (1+ index)))
(if (not (eq pointval (point)))
(let ((junk 0))
(next-line)
(open-line 1)
(c-indent-line-or-region)
(insert "/* *INDENT-OFF* */")
(search-forward "{")
(backward-char)
(forward-sexp)
(move-end-of-line nil)
(newline 1)
(c-indent-line-or-region)
(insert "/* *INDENT-ON* */")
(find-indent-offs))
(search-forward "*INDENT-ON*"))))))
(defun fix-pool-foreach () (interactive)
(fix-initializer "pool_foreach *("))
(defun fix-pool-foreach-index () (interactive)
(fix-initializer "pool_foreach_index *("))
(defun fix-hash-foreach () (interactive)
(fix-initializer "hash_foreach *("))
(defun fix-hash-foreach-pair () (interactive)
(fix-initializer "hash_foreach_pair *("))
(defun fix-hash-foreach-mem () (interactive)
(fix-initializer "hash_foreach_mem *("))
(defun fix-clib-fifo-foreach () (interactive)
(fix-initializer "clib_fifo_foreach *("))
(defun fix-clib-bitmap-foreach () (interactive)
(fix-initializer "clib_bitmap_foreach *("))
(defun fix-foreach-ip-interface-address () (interactive)
(fix-initializer "foreach_ip_interface_address *("))
(defun fix-vlib-register-thread () (interactive)
(fix-initializer "VLIB_REGISTER_THREAD *("))
(defun fix-vlib-cli-command () (interactive)
(fix-initializer "VLIB_CLI_COMMAND *("))
(defun fix-vlib-register-node () (interactive)
(fix-initializer "VLIB_REGISTER_NODE *("))
(defun fix-reply-macro2 () (interactive)
(fix-initializer "REPLY_MACRO2 *("))
(defun fix-vnet-device-class () (interactive)
(fix-initializer "VNET_DEVICE_CLASS *("))
(defun fix-vnet-hw-interface-class () (interactive)
(fix-initializer "VNET_HW_INTERFACE_CLASS *("))
(defun fix-clib-packed () (interactive)
(fix-initializer "CLIB_PACKED *("))
(defun fix-vl-api-packed () (interactive)
(fix-initializer "VL_API_PACKED *("))
;; Driver routine which runs the set of functions
;; defined above, as well as the bottom boilerplate function
(defun fd-io-styleify () (interactive)
(fix-pool-foreach)
(fix-pool-foreach-index)
(fix-hash-foreach)
(fix-hash-foreach-pair)
(fix-hash-foreach-mem)
(fix-foreach-ip-interface-address)
(fix-clib-fifo-foreach)
(fix-clib-bitmap-foreach)
(fix-vlib-register-thread)
(fix-vlib-cli-command)
(fix-vlib-register-node)
(fix-reply-macro2)
(fix-vnet-device-class)
(fix-vnet-hw-interface-class)
(fix-clib-packed)
(fix-vl-api-packed)
(insert-style-boilerplate)
(if (boundp 'indent-offset-list)
(makunbound 'indent-offset-list)))
;; When run as a script, this sexp
;; walks the list of files supplied on the command line.
;;
;; (elt argv index) returns nil if you M-x eval-buffer
;; or M-x load-file the file, so we won't accidentally
;; evaluate (save-buffers-kill-emacs)...
(let ((file-index 0))
(if (elt argv file-index)
(while (elt argv file-index)
(find-file (elt argv file-index))
(fd-io-styleify)
(message "Done %s..." (elt argv file-index))
(setq file-index (1+ file-index))))
(if (> file-index 0)
(let ((junk 0))
(message "Save and quit...")
(save-buffers-kill-emacs t))))
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