(eval-when-compile (require 'cl))
(require 'pcvs-util)
(autoload 'vc-find-version "vc")
(autoload 'vc-version-diff "vc")
(defvar cvs-minor-wrap-function)
(defgroup log-view nil
"Major mode for browsing log output of RCS/CVS/SCCS."
:group 'pcl-cvs
:prefix "log-view-")
(easy-mmode-defmap log-view-mode-map
'(("q" . quit-window)
("z" . kill-this-buffer)
("m" . set-mark-command)
("d" . log-view-diff)
("f" . log-view-find-version)
("n" . log-view-msg-next)
("p" . log-view-msg-prev)
("N" . log-view-file-next)
("P" . log-view-file-prev)
("\M-n" . log-view-file-next)
("\M-p" . log-view-file-prev))
"Log-View's keymap."
:group 'log-view
:inherit (if (boundp 'cvs-mode-map) cvs-mode-map))
(defvar log-view-mode-hook nil
"Hook run at the end of `log-view-mode'.")
(defface log-view-file
'((((class color) (background light))
(:background "grey70" :weight bold))
(t (:weight bold)))
"Face for the file header line in `log-view-mode'."
:group 'log-view)
(put 'log-view-file-face 'face-alias 'log-view-file)
(defvar log-view-file-face 'log-view-file)
(defface log-view-message
'((((class color) (background light))
(:background "grey85"))
(t (:weight bold)))
"Face for the message header line in `log-view-mode'."
:group 'log-view)
(put 'log-view-message-face 'face-alias 'log-view-message)
(defvar log-view-message-face 'log-view-message)
(defconst log-view-file-re
(concat "^\\(?:Working file: \\(.+\\)" "\\|\\(?:SCCS/s\\.\\|Changes to \\)\\(.+\\):" "\\)\n"))
(defconst log-view-message-re
(concat "^\\(?:revision \\([.0-9]+\\)\\(?:\t.*\\)?" "\\|r\\([0-9]+\\) | .* | .*" "\\|D \\([.0-9]+\\) .*" (concat "\\|[^ \n].*[^0-9\n][0-9][0-9]:[0-9][0-9][^0-9\n].*[^ \n]"
" .*@.*\n\\(?: \\* \\(.*\\)\\)?")
"\\)$"))
(defconst log-view-font-lock-keywords
`((,log-view-file-re
(1 (if (boundp 'cvs-filename-face) cvs-filename-face) nil t)
(2 (if (boundp 'cvs-filename-face) cvs-filename-face) nil t)
(0 log-view-file-face append))
(,log-view-message-re . log-view-message-face)))
(defconst log-view-font-lock-defaults
'(log-view-font-lock-keywords t nil nil nil))
(define-derived-mode log-view-mode fundamental-mode "Log-View"
"Major mode for browsing CVS log output."
(setq buffer-read-only t)
(set (make-local-variable 'font-lock-defaults) log-view-font-lock-defaults)
(set (make-local-variable 'cvs-minor-wrap-function) 'log-view-minor-wrap))
(easy-mmode-define-navigation log-view-msg log-view-message-re "log message")
(easy-mmode-define-navigation log-view-file log-view-file-re "file")
(defun log-view-goto-rev (rev)
(goto-char (point-min))
(ignore-errors
(while (not (equal rev (log-view-current-tag)))
(log-view-msg-next))
t))
(defconst log-view-dir-re "^cvs[.ex]* [a-z]+: Logging \\(.+\\)$")
(defun log-view-current-file ()
(save-excursion
(forward-line 1)
(or (re-search-backward log-view-file-re nil t)
(re-search-forward log-view-file-re))
(let* ((file (or (match-string 1) (match-string 2)))
(cvsdir (and (re-search-backward log-view-dir-re nil t)
(match-string 1)))
(pcldir (and (boundp 'cvs-pcl-cvs-dirchange-re)
(re-search-backward cvs-pcl-cvs-dirchange-re nil t)
(match-string 1)))
(dir ""))
(let ((default-directory ""))
(when pcldir (setq dir (expand-file-name pcldir dir)))
(when cvsdir (setq dir (expand-file-name cvsdir dir))))
(expand-file-name file dir))))
(defun log-view-current-tag (&optional where)
(save-excursion
(when where (goto-char where))
(forward-line 1)
(let ((pt (point)))
(when (re-search-backward log-view-message-re nil t)
(let (rev)
(dotimes (i (/ (length (match-data 'integers)) 2))
(setq rev (or rev (match-string (1+ i)))))
(unless (re-search-forward log-view-file-re pt t)
rev))))))
(defvar cvs-minor-current-files)
(defvar cvs-branch-prefix)
(defvar cvs-secondary-branch-prefix)
(defun log-view-minor-wrap (buf f)
(let ((data (with-current-buffer buf
(let* ((beg (point))
(end (if mark-active (mark) (point)))
(fr (log-view-current-tag beg))
(to (log-view-current-tag end)))
(when (string-equal fr to)
(save-excursion
(goto-char end)
(log-view-msg-next)
(setq to (log-view-current-tag))))
(cons
(cons (log-view-current-file) fr)
(cons (log-view-current-file) to))))))
(let ((cvs-branch-prefix (cdar data))
(cvs-secondary-branch-prefix (and (cdar data) (cddr data)))
(cvs-minor-current-files
(cons (caar data)
(when (and (cadr data) (not (equal (caar data) (cadr data))))
(list (cadr data)))))
(cvs-force-command "/F"))
(funcall f))))
(defun log-view-find-version (pos)
"Visit the version at point."
(interactive "d")
(save-excursion
(goto-char pos)
(switch-to-buffer (vc-find-version (log-view-current-file)
(log-view-current-tag)))))
(defun log-view-diff (beg end)
"Get the diff between two revisions.
If the mark is not active or the mark is on the revision at point,
get the diff between the revision at point and its previous revision.
Otherwise, get the diff between the revisions where the region starts
and ends."
(interactive
(list (if mark-active (region-beginning) (point))
(if mark-active (region-end) (point))))
(let ((fr (log-view-current-tag beg))
(to (log-view-current-tag end)))
(when (string-equal fr to)
(save-excursion
(goto-char end)
(log-view-msg-next)
(setq to (log-view-current-tag))))
(vc-version-diff (log-view-current-file) to fr)))
(provide 'log-view)