contrib/hg-test-mode.el

wireprototypes: clarify documentation of getbundle argument types

It seems like it was a mix of what the Python code would see and what
was sent over the wire. I've tried to clarify both the type seen in
Python and how it's transmitted.

Differential Revision: https://phab.mercurial-scm.org/D6871

;; hg-test-mode.el - Major mode for editing Mercurial tests
;;
;; Copyright 2014 Matt Mackall <[e-mail]>
;; "I have no idea what I'm doing"
;;
;; This software may be used and distributed according to the terms of the
;; GNU General Public License version 2 or any later version.
;;
;; To enable, add something like the following to your .emacs:
;;
;; (if (file-exists-p "~/hg/contrib/hg-test-mode.el")
;;    (load "~/hg/contrib/hg-test-mode.el"))

(defvar hg-test-mode-hook nil)

(defvar hg-test-mode-map
  (let ((map (make-keymap)))
    (define-key map "\C-j" 'newline-and-indent)
    map)
  "Keymap for hg test major mode")

(add-to-list 'auto-mode-alist '("\\.t\\'" . hg-test-mode))

(defconst hg-test-font-lock-keywords-1
  (list
   '("^  \\(\\$\\|>>>\\) " 1 font-lock-builtin-face)
   '("^  \\(>\\|\\.\\.\\.\\) " 1 font-lock-constant-face)
   '("^  \\([[][0-9]+[]]\\)$" 1 font-lock-warning-face)
   '("^  \\(.*?\\)\\(\\( [(][-a-z]+[)]\\)*\\)$" 1 font-lock-string-face)
   '("\\$?\\(HG\\|TEST\\)\\w+=?" . font-lock-variable-name-face)
   '("^  \\(.*?\\)\\(\\( [(][-a-z]+[)]\\)+\\)$" 2 font-lock-type-face)
   '("^#.*" . font-lock-preprocessor-face)
   '("^\\([^ ].*\\)$" 1 font-lock-comment-face)
   )
  "Minimal highlighting expressions for hg-test mode")

(defvar hg-test-font-lock-keywords hg-test-font-lock-keywords-1
  "Default highlighting expressions for hg-test mode")

(defvar hg-test-mode-syntax-table
  (let ((st (make-syntax-table)))
    (modify-syntax-entry ?\" "w" st) ;; disable standard quoting
    st)
"Syntax table for hg-test mode")

(defun hg-test-mode ()
  (interactive)
  (kill-all-local-variables)
  (use-local-map hg-test-mode-map)
  (set-syntax-table hg-test-mode-syntax-table)
  (set (make-local-variable 'font-lock-defaults) '(hg-test-font-lock-keywords))
  (setq major-mode 'hg-test-mode)
  (setq mode-name "hg-test")
  (run-hooks 'hg-test-mode-hook))

(with-eval-after-load "compile"
  ;; Link to Python sources in tracebacks in .t failures.
  (add-to-list 'compilation-error-regexp-alist-alist
               '(hg-test-output-python-tb
                 "^\\+ +File ['\"]\\([^'\"]+\\)['\"], line \\([0-9]+\\)," 1 2))
  (add-to-list 'compilation-error-regexp-alist 'hg-test-output-python-tb)
  ;; Link to source files in test-check-code.t violations.
  (add-to-list 'compilation-error-regexp-alist-alist
               '(hg-test-check-code-output
                 "\\+  \\([^:\n]+\\):\\([0-9]+\\):$" 1 2))
  (add-to-list 'compilation-error-regexp-alist 'hg-test-check-code-output))

(defun hg-test-mode--test-one-error-line-regexp (test)
  (erase-buffer)
  (setq compilation-locs (make-hash-table))
  (insert (car test))
  (compilation-parse-errors (point-min) (point-max))
  (let ((msg (get-text-property 1 'compilation-message)))
    (should msg)
    (let ((loc (compilation--message->loc msg))
          (line (nth 1 test))
          (file (nth 2 test)))
      (should (equal (compilation--loc->line loc) line))
      (should (equal (caar (compilation--loc->file-struct loc)) file)))
      msg))

(require 'ert)
(ert-deftest hg-test-mode--compilation-mode-support ()
  "Test hg-specific compilation-mode regular expressions"
  (require 'compile)
  (with-temp-buffer
    (font-lock-mode -1)
    (mapc 'hg-test-mode--test-one-error-line-regexp
          '(
            ("+  contrib/debugshell.py:37:" 37 "contrib/debugshell.py")
            ("+    File \"/tmp/hg/mercurial/commands.py\", line 3115, in help_"
             3115 "/tmp/hg/mercurial/commands.py")
            ("+    File \"mercurial/dispatch.py\", line 225, in dispatch"
             225 "mercurial/dispatch.py")))))


(provide 'hg-test-mode)