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; To use this,
; 1) Add to init.el:
; (setq-default chrome-root "/path/to/chrome/src/")
; (add-to-list 'load-path (concat chrome-root "tools/emacs"))
; (require 'trybot)
; 2) Run on trybot output:
; M-x trybot
;
; To hack on this,
; M-x eval-buffer
; M-x trybot-test-win or M-x trybot-test-mac
(defvar chrome-root nil
"Path to the src/ directory of your Chrome checkout.")
(defun get-chrome-root ()
(or chrome-root default-directory))
; Hunt down from the top, case correcting each path component as needed.
; Currently does not keep a cache. Returns nil if no matching file can be
; figured out.
(defun case-corrected-filename (filename)
(save-match-data
(let ((path-components (split-string filename "/"))
(corrected-path (file-name-as-directory (get-chrome-root))))
(mapc
(function
(lambda (elt)
(if corrected-path
(let ((next-component
(car (member-ignore-case
elt (directory-files corrected-path)))))
(setq corrected-path
(and next-component
(file-name-as-directory
(concat corrected-path next-component))))))))
path-components)
(if corrected-path
(file-relative-name (directory-file-name corrected-path)
(get-chrome-root))
nil))))
(defun trybot-fixup ()
"Parse and fixup the contents of the current buffer as trybot output."
;; Fixup paths.
(cd (get-chrome-root))
;; Delete Windows \r.
(delete-trailing-whitespace)
;; Fix up path references.
; XXX is there something I should so so this stuff doesn't end up on the
; undo stack?
(goto-char (point-min))
; Fix Windows paths ("d:\...\src\").
; TODO: need to fix case; e.g. third_party/webkit -> third_party/WebKit. :(
(while (re-search-forward "\\(^.:\\\\.*\\\\src\\\\\\)\\(.*?\\)[(:]" nil t)
(replace-match "" nil t nil 1)
; Line now looks like:
; foo\bar\baz.cc error message here
; We want to fixup backslashes in path into forward slashes, without
; modifying the error message - by matching up to the first colon above
; (which will be just beyond the end of the filename) we can use the end of
; the match as a limit.
(subst-char-in-region (point) (match-end 0) ?\\ ?/)
; See if we can correct the file name casing.
(let ((filename (buffer-substring (match-beginning 2) (match-end 2))))
(if (and (not (file-exists-p filename))
(setq filename (case-corrected-filename filename)))
(replace-match filename t t nil 2))))
(goto-char (point-min))
;; Switch into compilation mode.
(compilation-mode))
(defun trybot-test (filename)
"Load the given test data filename and do the trybot parse on it."
(switch-to-buffer (get-buffer-create "*trybot-test*"))
(let ((inhibit-read-only t))
(erase-buffer)
(insert-file-contents-literally
(concat (get-chrome-root) "tools/emacs/" filename))
(trybot-fixup)))
(defun trybot-test-win ()
"Load the Windows test data and do the trybot parse on it."
(interactive)
(trybot-test "trybot-windows.txt"))
(defun trybot-test-mac ()
"Load the Mac test data and do the trybot parse on it."
(interactive)
(trybot-test "trybot-mac.txt"))
(defun trybot (url)
"Fetch a trybot URL and fix up the output into a compilation-mode buffer."
(interactive "sURL to trybot stdout (leave empty to use clipboard): ")
;; Yank URL from clipboard if necessary.
(when (= (length url) 0)
(with-temp-buffer
(clipboard-yank)
(setq url (buffer-string))))
;; TODO: fixup URL to append /text if necessary.
;; Extract the body out of the URL.
; TODO: delete HTTP headers somehow.
(switch-to-buffer (get-buffer-create "*trybot*"))
(buffer-swap-text (url-retrieve-synchronously url))
(trybot-fixup))
(provide 'trybot)
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