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336 lines
12 KiB
EmacsLisp
336 lines
12 KiB
EmacsLisp
;;; vc-mtn.el --- VC backend for Monotone
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;; Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc.
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;; Author: Stefan Monnier <monnier@iro.umontreal.ca>
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;; Keywords:
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;;
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;;; TODO:
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;; - The `previous-version' VC method needs to be supported, 'D' in
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;; log-view-mode uses it.
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;;; Code:
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(eval-when-compile (require 'cl) (require 'vc))
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(defcustom vc-mtn-diff-switches t
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"String or list of strings specifying switches for monotone diff under VC.
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If nil, use the value of `vc-diff-switches'. If t, use no switches."
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:type '(choice (const :tag "Unspecified" nil)
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(const :tag "None" t)
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(string :tag "Argument String")
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(repeat :tag "Argument List" :value ("") string))
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:version "23.1"
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:group 'vc)
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(define-obsolete-variable-alias 'vc-mtn-command 'vc-mtn-program "23.1")
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(defcustom vc-mtn-program "mtn"
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"Name of the monotone executable."
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:type 'string
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:group 'vc)
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;; Clear up the cache to force vc-call to check again and discover
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;; new functions when we reload this file.
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(put 'Mtn 'vc-functions nil)
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(unless (executable-find vc-mtn-program)
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;; vc-mtn.el is 100% non-functional without the `mtn' executable.
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(setq vc-handled-backends (delq 'Mtn vc-handled-backends)))
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;;;###autoload
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(defconst vc-mtn-admin-dir "_MTN")
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;;;###autoload
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(defconst vc-mtn-admin-format (concat vc-mtn-admin-dir "/format"))
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;;;###autoload (defun vc-mtn-registered (file)
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;;;###autoload (if (vc-find-root file vc-mtn-admin-format)
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;;;###autoload (progn
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;;;###autoload (load "vc-mtn")
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;;;###autoload (vc-mtn-registered file))))
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(defun vc-mtn-revision-granularity () 'repository)
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(defun vc-mtn-checkout-model (files) 'implicit)
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(defun vc-mtn-root (file)
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(setq file (if (file-directory-p file)
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(file-name-as-directory file)
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(file-name-directory file)))
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(or (vc-file-getprop file 'vc-mtn-root)
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(vc-file-setprop file 'vc-mtn-root
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(vc-find-root file vc-mtn-admin-format))))
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(defun vc-mtn-registered (file)
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(let ((root (vc-mtn-root file)))
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(when root
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(vc-mtn-state file))))
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(defun vc-mtn-command (buffer okstatus files &rest flags)
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"A wrapper around `vc-do-command' for use in vc-mtn.el."
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(let ((process-environment
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;; Avoid localization of messages so we can parse the output.
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(cons "LC_MESSAGES=C" process-environment)))
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(apply 'vc-do-command (or buffer "*vc*") okstatus vc-mtn-program
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files flags)))
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(defun vc-mtn-state (file)
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;; If `mtn' fails or returns status>0, or if the search files, just
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;; return nil.
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(ignore-errors
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(with-temp-buffer
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(vc-mtn-command t 0 file "status")
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(goto-char (point-min))
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(re-search-forward
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"^ \\(?:\\(patched\\)\\|\\(added\\) \\(?:.*\\)\\)\\|no changes$")
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(cond ((match-end 1) 'edited)
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((match-end 2) 'added)
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(t 'up-to-date)))))
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(defun vc-mtn-after-dir-status (update-function)
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(let (result)
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(goto-char (point-min))
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(re-search-forward "Current branch: \\(.*\\)\nChanges against parent \\(.*\\)" nil t)
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(while (re-search-forward
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"^ \\(?:\\(patched \\)\\|\\(added \\)\\)\\(.*\\)$" nil t)
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(cond ((match-end 1) (push (list (match-string 3) 'edited) result))
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((match-end 2) (push (list (match-string 3) 'added) result))))
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(funcall update-function result)))
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(defun vc-mtn-dir-status (dir update-function)
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(vc-mtn-command (current-buffer) 'async dir "status")
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(vc-exec-after
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`(vc-mtn-after-dir-status (quote ,update-function))))
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(defun vc-mtn-working-revision (file)
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;; If `mtn' fails or returns status>0, or if the search fails, just
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;; return nil.
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(ignore-errors
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(with-temp-buffer
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(vc-mtn-command t 0 file "status")
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(goto-char (point-min))
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(re-search-forward "Current branch: \\(.*\\)\nChanges against parent \\(.*\\)")
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(match-string 2))))
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(defun vc-mtn-workfile-branch (file)
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;; If `mtn' fails or returns status>0, or if the search files, just
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;; return nil.
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(ignore-errors
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(with-temp-buffer
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(vc-mtn-command t 0 file "status")
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(goto-char (point-min))
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(re-search-forward "Current branch: \\(.*\\)\nChanges against parent \\(.*\\)")
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(match-string 1))))
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(defun vc-mtn-workfile-unchanged-p (file)
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(not (eq (vc-mtn-state file) 'edited)))
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;; Mode-line rewrite code copied from vc-arch.el.
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(defcustom vc-mtn-mode-line-rewrite
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'(("\\`[^:/#]*[:/#]" . "")) ;Drop the host part.
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"Rewrite rules to shorten Mtn's revision names on the mode-line."
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:type '(repeat (cons regexp string))
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:version "22.2"
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:group 'vc)
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(defun vc-mtn-mode-line-string (file)
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"Return string for placement in modeline by `vc-mode-line' for FILE."
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(let ((branch (vc-mtn-workfile-branch file)))
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(dolist (rule vc-mtn-mode-line-rewrite)
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(if (string-match (car rule) branch)
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(setq branch (replace-match (cdr rule) t nil branch))))
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(format "Mtn%c%s"
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(case (vc-state file)
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((up-to-date needs-update) ?-)
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(added ?@)
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(t ?:))
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branch)))
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(defun vc-mtn-register (files &optional rev comment)
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(vc-mtn-command nil 0 files "add"))
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(defun vc-mtn-responsible-p (file) (vc-mtn-root file))
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(defun vc-mtn-could-register (file) (vc-mtn-root file))
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(defun vc-mtn-checkin (files rev comment)
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(vc-mtn-command nil 0 files "commit" "-m" comment))
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(defun vc-mtn-find-revision (file rev buffer)
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(vc-mtn-command buffer 0 file "cat" "-r" rev))
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;; (defun vc-mtn-checkout (file &optional editable rev)
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;; )
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(defun vc-mtn-revert (file &optional contents-done)
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(unless contents-done
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(vc-mtn-command nil 0 file "revert")))
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;; (defun vc-mtn-roolback (files)
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;; )
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(defun vc-mtn-print-log (files &optional buffer shortlog)
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(vc-mtn-command buffer 0 files "log"))
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(defvar log-view-message-re)
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(defvar log-view-file-re)
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(defvar log-view-font-lock-keywords)
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(defvar log-view-per-file-logs)
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(define-derived-mode vc-mtn-log-view-mode log-view-mode "Mtn-Log-View"
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;; Don't match anything.
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(set (make-local-variable 'log-view-file-re) "\\`a\\`")
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(set (make-local-variable 'log-view-per-file-logs) nil)
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;; TODO: Use a more precise regexp than "[ |/]+" to avoid false positives
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;; in the ChangeLog text.
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(set (make-local-variable 'log-view-message-re)
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"^[ |/]+Revision: \\([0-9a-f]+\\)")
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(require 'add-log) ;For change-log faces.
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(set (make-local-variable 'log-view-font-lock-keywords)
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(append log-view-font-lock-keywords
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'(("^[ |]+Author: \\(.*\\)" (1 'change-log-email))
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("^[ |]+Date: \\(.*\\)" (1 'change-log-date-face))))))
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;; (defun vc-mtn-show-log-entry (revision)
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;; )
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(defun vc-mtn-diff (files &optional rev1 rev2 buffer)
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"Get a difference report using monotone between two revisions of FILES."
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(apply 'vc-mtn-command (or buffer "*vc-diff*") 1 files "diff"
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(append
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(vc-switches 'mtn 'diff)
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(if rev1 (list "-r" rev1)) (if rev2 (list "-r" rev2)))))
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(defun vc-mtn-annotate-command (file buf &optional rev)
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(apply 'vc-mtn-command buf 'async file "annotate"
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(if rev (list "-r" rev))))
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(declare-function vc-annotate-convert-time "vc-annotate" (time))
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(defconst vc-mtn-annotate-full-re
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"^ *\\([0-9a-f]+\\)\\.* by [^ ]+ \\([0-9]+\\)-\\([0-9]+\\)-\\([0-9]+\\): ")
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(defconst vc-mtn-annotate-any-re
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(concat "^\\(?: +: \\|" vc-mtn-annotate-full-re "\\)"))
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(defun vc-mtn-annotate-time ()
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(when (looking-at vc-mtn-annotate-any-re)
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(goto-char (match-end 0))
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(let ((year (match-string 2)))
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(if (not year)
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;; Look for the date on a previous line.
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(save-excursion
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(get-text-property (1- (previous-single-property-change
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(point) 'vc-mtn-time nil (point-min)))
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'vc-mtn-time))
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(let ((time (vc-annotate-convert-time
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(encode-time 0 0 0
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(string-to-number (match-string 4))
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(string-to-number (match-string 3))
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(string-to-number year)
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t))))
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(let ((inhibit-read-only t)
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(inhibit-modification-hooks t))
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(put-text-property (match-beginning 0) (match-end 0)
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'vc-mtn-time time))
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time)))))
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(defun vc-mtn-annotate-extract-revision-at-line ()
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(save-excursion
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(when (or (looking-at vc-mtn-annotate-full-re)
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(re-search-backward vc-mtn-annotate-full-re nil t))
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(match-string 1))))
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;;; Revision completion.
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(defun vc-mtn-list-tags ()
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(with-temp-buffer
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(vc-mtn-command t 0 nil "list" "tags")
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(goto-char (point-min))
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(let ((tags ()))
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(while (re-search-forward "^[^ ]+" nil t)
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(push (match-string 0) tags))
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tags)))
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(defun vc-mtn-list-branches ()
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(with-temp-buffer
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(vc-mtn-command t 0 nil "list" "branches")
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(goto-char (point-min))
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(let ((branches ()))
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(while (re-search-forward "^.+" nil t)
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(push (match-string 0) branches))
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branches)))
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(defun vc-mtn-list-revision-ids (prefix)
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(with-temp-buffer
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(vc-mtn-command t 0 nil "complete" "revision" prefix)
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(goto-char (point-min))
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(let ((ids ()))
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(while (re-search-forward "^.+" nil t)
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(push (match-string 0) ids))
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ids)))
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(defun vc-mtn-revision-completion-table (files)
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;; TODO: Implement completion for for selectors
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;; TODO: Implement completion for composite selectors.
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(lexical-let ((files files))
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;; What about using `files'?!? --Stef
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(lambda (string pred action)
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(cond
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;; "Tag" selectors.
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((string-match "\\`t:" string)
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(complete-with-action action
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(mapcar (lambda (tag) (concat "t:" tag))
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(vc-mtn-list-tags))
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string pred))
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;; "Branch" selectors.
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((string-match "\\`b:" string)
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(complete-with-action action
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(mapcar (lambda (tag) (concat "b:" tag))
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(vc-mtn-list-branches))
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string pred))
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;; "Head" selectors. Not sure how they differ from "branch" selectors.
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((string-match "\\`h:" string)
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(complete-with-action action
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(mapcar (lambda (tag) (concat "h:" tag))
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(vc-mtn-list-branches))
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string pred))
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;; "ID" selectors.
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((string-match "\\`i:" string)
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(complete-with-action action
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(mapcar (lambda (tag) (concat "i:" tag))
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(vc-mtn-list-revision-ids
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(substring string (match-end 0))))
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string pred))
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(t
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(complete-with-action action
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'("t:" "b:" "h:" "i:"
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;; Completion not implemented for these.
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"a:" "c:" "d:" "e:" "l:")
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string pred))))))
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(provide 'vc-mtn)
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;; arch-tag: 2b89ffbc-cbb8-405a-9080-2eafd4becb70
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;;; vc-mtn.el ends here
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