changeset 40: |
2d74d85d7031 |
author: |
Richard Westhaver <ellis@rwest.io> |
date: |
Wed, 05 Jun 2024 23:31:48 +0000 |
permissions: |
-rw-r--r-- |
description: |
add back official mercurial emacs packages |
1 ;;; mercurial.el --- Emacs support for the Mercurial distributed SCM 3 ;; Copyright (C) 2005, 2006 Bryan O'Sullivan 5 ;; Author: Bryan O'Sullivan <bos@serpentine.com> 7 ;; mercurial.el is free software; you can redistribute it and/or 8 ;; modify it under the terms of the GNU General Public License version 9 ;; 2 or any later version. 11 ;; mercurial.el is distributed in the hope that it will be useful, but 12 ;; WITHOUT ANY WARRANTY; without even the implied warranty of 13 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 ;; General Public License for more details. 16 ;; You should have received a copy of the GNU General Public License 17 ;; along with mercurial.el, GNU Emacs, or XEmacs; see the file COPYING 18 ;; (`C-h C-l'). If not, see <http://www.gnu.org/licenses/>. 22 ;; mercurial.el builds upon Emacs's VC mode to provide flexible 23 ;; integration with the Mercurial distributed SCM tool. 25 ;; To get going as quickly as possible, load mercurial.el into Emacs and 26 ;; type `C-c h h'; this runs hg-help-overview, which prints a helpful 29 ;; Much of the inspiration for mercurial.el comes from Rajesh 30 ;; Vaidheeswarran's excellent p4.el, which does an admirably thorough 31 ;; job for the commercial Perforce SCM product. In fact, substantial 32 ;; chunks of code are adapted from p4.el. 34 ;; This code has been developed under XEmacs 21.5, and may not work as 35 ;; well under GNU Emacs (albeit tested under 21.4). Patches to 36 ;; enhance the portability of this code, fix bugs, and add features 39 ;; As of version 22.3, GNU Emacs's VC mode has direct support for 40 ;; Mercurial, so this package may not prove as useful there. 42 ;; Please send problem reports and suggestions to bos@serpentine.com. 47 (eval-when-compile (require 'cl)) 53 (defmacro hg-feature-cond (&rest clauses) 54 "Test CLAUSES for feature at compile time. 55 Each clause is (FEATURE BODY...)." 57 (let ((feature (car x)) 59 (when (or (eq feature t) 61 (return (cons 'progn body)))))) 64 ;;; XEmacs has view-less, while GNU Emacs has view. Joy. 67 (xemacs (require 'view-less)) 71 ;;; Variables accessible through the custom system. 73 (defgroup mercurial nil 74 "Mercurial distributed SCM." 78 (or (executable-find "hg") 79 (dolist (path '("~/bin/hg" "/usr/bin/hg" "/usr/local/bin/hg")) 80 (when (file-executable-p path) 82 "The path to Mercurial's hg executable." 83 :type '(file :must-match t) 86 (defcustom hg-mode-hook nil 87 "Hook run when a buffer enters hg-mode." 91 (defcustom hg-commit-mode-hook nil 92 "Hook run when a buffer is created to prepare a commit." 96 (defcustom hg-pre-commit-hook nil 97 "Hook run before a commit is performed. 98 If you want to prevent the commit from proceeding, raise an error." 102 (defcustom hg-log-mode-hook nil 103 "Hook run after a buffer is filled with log information." 107 (defcustom hg-global-prefix "\C-ch" 108 "The global prefix for Mercurial keymap bindings." 112 (defcustom hg-commit-allow-empty-message nil 113 "Whether to allow changes to be committed with empty descriptions." 117 (defcustom hg-commit-allow-empty-file-list nil 118 "Whether to allow changes to be committed without any modified files." 122 (defcustom hg-rev-completion-limit 100 123 "The maximum number of revisions that hg-read-rev will offer to complete. 124 This affects memory usage and performance when prompting for revisions 125 in a repository with a lot of history." 129 (defcustom hg-log-limit 50 130 "The maximum number of revisions that hg-log will display." 134 (defcustom hg-update-modeline t 135 "Whether to update the modeline with the status of a file after every save. 136 Set this to nil on platforms with poor process management, such as Windows." 140 (defcustom hg-incoming-repository "default" 141 "The repository from which changes are pulled from by default. 142 This should be a symbolic repository name, since it is used for all 143 repository-related commands." 147 (defcustom hg-outgoing-repository "" 148 "The repository to which changes are pushed to by default. 149 This should be a symbolic repository name, since it is used for all 150 repository-related commands." 158 "Is this file managed by Mercurial?") 159 (make-variable-buffer-local 'hg-mode) 160 (put 'hg-mode 'permanent-local t) 162 (defvar hg-status nil) 163 (make-variable-buffer-local 'hg-status) 164 (put 'hg-status 'permanent-local t) 166 (defvar hg-prev-buffer nil) 167 (make-variable-buffer-local 'hg-prev-buffer) 168 (put 'hg-prev-buffer 'permanent-local t) 171 (make-variable-buffer-local 'hg-root) 172 (put 'hg-root 'permanent-local t) 174 (defvar hg-view-mode nil) 175 (make-variable-buffer-local 'hg-view-mode) 176 (put 'hg-view-mode 'permanent-local t) 178 (defvar hg-view-file-name nil) 179 (make-variable-buffer-local 'hg-view-file-name) 180 (put 'hg-view-file-name 'permanent-local t) 182 (defvar hg-output-buffer-name "*Hg*" 183 "The name to use for Mercurial output buffers.") 185 (defvar hg-file-history nil) 186 (defvar hg-repo-history nil) 187 (defvar hg-rev-history nil) 188 (defvar hg-repo-completion-table nil) ; shut up warnings 191 ;;; Random constants. 193 (defconst hg-commit-message-start 194 "--- Enter your commit message. Type `C-c C-c' to commit. ---\n") 196 (defconst hg-commit-message-end 197 "--- Files in bold will be committed. Click to toggle selection. ---\n") 199 (defconst hg-state-alist 210 (defvar hg-prefix-map 211 (let ((map (make-sparse-keymap))) 212 (hg-feature-cond (xemacs (set-keymap-name map 'hg-prefix-map))) ; XEmacs 213 (set-keymap-parent map vc-prefix-map) 214 (define-key map "=" 'hg-diff) 215 (define-key map "c" 'hg-undo) 216 (define-key map "g" 'hg-annotate) 217 (define-key map "i" 'hg-add) 218 (define-key map "l" 'hg-log) 219 (define-key map "n" 'hg-commit-start) 220 ;; (define-key map "r" 'hg-update) 221 (define-key map "u" 'hg-revert-buffer) 222 (define-key map "~" 'hg-version-other-window) 224 "This keymap overrides some default vc-mode bindings.") 227 (let ((map (make-sparse-keymap))) 228 (define-key map "\C-xv" hg-prefix-map) 231 (add-minor-mode 'hg-mode 'hg-mode hg-mode-map) 236 (defvar hg-global-map 237 (let ((map (make-sparse-keymap))) 238 (define-key map "," 'hg-incoming) 239 (define-key map "." 'hg-outgoing) 240 (define-key map "<" 'hg-pull) 241 (define-key map "=" 'hg-diff-repo) 242 (define-key map ">" 'hg-push) 243 (define-key map "?" 'hg-help-overview) 244 (define-key map "A" 'hg-addremove) 245 (define-key map "U" 'hg-revert) 246 (define-key map "a" 'hg-add) 247 (define-key map "c" 'hg-commit-start) 248 (define-key map "f" 'hg-forget) 249 (define-key map "h" 'hg-help-overview) 250 (define-key map "i" 'hg-init) 251 (define-key map "l" 'hg-log-repo) 252 (define-key map "r" 'hg-root) 253 (define-key map "s" 'hg-status) 254 (define-key map "u" 'hg-update) 257 (global-set-key hg-global-prefix hg-global-map) 259 ;;; View mode keymap. 261 (defvar hg-view-mode-map 262 (let ((map (make-sparse-keymap))) 263 (hg-feature-cond (xemacs (set-keymap-name map 'hg-view-mode-map))) ; XEmacs 264 (define-key map (hg-feature-cond (xemacs [button2]) 266 'hg-buffer-mouse-clicked) 269 (add-minor-mode 'hg-view-mode "" hg-view-mode-map) 272 ;;; Commit mode keymaps. 274 (defvar hg-commit-mode-map 275 (let ((map (make-sparse-keymap))) 276 (define-key map "\C-c\C-c" 'hg-commit-finish) 277 (define-key map "\C-c\C-k" 'hg-commit-kill) 278 (define-key map "\C-xv=" 'hg-diff-repo) 281 (defvar hg-commit-mode-file-map 282 (let ((map (make-sparse-keymap))) 283 (define-key map (hg-feature-cond (xemacs [button2]) 285 'hg-commit-mouse-clicked) 286 (define-key map " " 'hg-commit-toggle-file) 287 (define-key map "\r" 'hg-commit-toggle-file) 291 ;;; Convenience functions. 293 (defsubst hg-binary () 296 (error "No `hg' executable found!"))) 298 (defsubst hg-replace-in-string (str regexp newtext &optional literal) 299 "Replace all matches in STR for REGEXP with NEWTEXT string. 300 Return the new string. Optional LITERAL non-nil means do a literal 303 This function bridges yet another pointless impedance gap between 304 XEmacs and GNU Emacs." 306 (xemacs (replace-in-string str regexp newtext literal)) 307 (t (replace-regexp-in-string regexp newtext str nil literal)))) 309 (defsubst hg-strip (str) 310 "Strip leading and trailing blank lines from a string." 311 (hg-replace-in-string (hg-replace-in-string str "[\r\n][ \t\r\n]*\\'" "") 312 "\\`[ \t\r\n]*[\r\n]" "")) 314 (defsubst hg-chomp (str) 315 "Strip trailing newlines from a string." 316 (hg-replace-in-string str "[\r\n]+\\'" "")) 318 (defun hg-run-command (command &rest args) 319 "Run the shell command COMMAND, returning (EXIT-CODE . COMMAND-OUTPUT). 320 The list ARGS contains a list of arguments to pass to the command." 323 (with-output-to-string 327 (apply 'call-process command nil t nil args)))))) 328 (cons exit-code output))) 330 (defun hg-run (command &rest args) 331 "Run the Mercurial command COMMAND, returning (EXIT-CODE . COMMAND-OUTPUT)." 332 (apply 'hg-run-command (hg-binary) command args)) 334 (defun hg-run0 (command &rest args) 335 "Run the Mercurial command COMMAND, returning its output. 336 If the command does not exit with a zero status code, raise an error." 337 (let ((res (apply 'hg-run-command (hg-binary) command args))) 338 (if (not (eq (car res) 0)) 339 (error "Mercurial command failed %s - exit code %s" 344 (defmacro hg-do-across-repo (path &rest body) 345 (let ((root-name (make-symbol "root-")) 346 (buf-name (make-symbol "buf-"))) 347 `(let ((,root-name (hg-root ,path))) 349 (dolist (,buf-name (buffer-list)) 350 (set-buffer ,buf-name) 351 (when (and hg-status (equal (hg-root buffer-file-name) ,root-name)) 354 (put 'hg-do-across-repo 'lisp-indent-function 1) 356 (defun hg-sync-buffers (path) 357 "Sync buffers visiting PATH with their on-disk copies. 358 If PATH is not being visited, but is under the repository root, sync 359 all buffers visiting files in the repository." 360 (let ((buf (find-buffer-visiting path))) 362 (with-current-buffer buf 364 (hg-do-across-repo path 367 (defun hg-buffer-commands (pnt) 368 "Use the properties of a character to do something sensible." 370 (let ((rev (get-char-property pnt 'rev)) 371 (file (get-char-property pnt 'file))) 374 (find-file-other-window file)) 376 (hg-diff hg-view-file-name rev rev)) 377 ((message "I don't know how to do that yet"))))) 379 (defsubst hg-event-point (event) 380 "Return the character position of the mouse event EVENT." 381 (hg-feature-cond (xemacs (event-point event)) 382 (t (posn-point (event-start event))))) 384 (defsubst hg-event-window (event) 385 "Return the window over which mouse event EVENT occurred." 386 (hg-feature-cond (xemacs (event-window event)) 387 (t (posn-window (event-start event))))) 389 (defun hg-buffer-mouse-clicked (event) 390 "Translate the mouse clicks in a HG log buffer to character events. 391 These are then handed off to `hg-buffer-commands'. 393 Handle frickin' frackin' gratuitous event-related incompatibilities." 395 (select-window (hg-event-window event)) 396 (hg-buffer-commands (hg-event-point event))) 398 (defsubst hg-abbrev-file-name (file) 399 "Portable wrapper around abbreviate-file-name." 400 (hg-feature-cond (xemacs (abbreviate-file-name file t)) 401 (t (abbreviate-file-name file)))) 403 (defun hg-read-file-name (&optional prompt default) 404 "Read a file or directory name, or a pattern, to use with a command." 406 (while hg-prev-buffer 407 (set-buffer hg-prev-buffer)) 408 (let ((path (or default 410 (expand-file-name default-directory)))) 411 (if (or (not path) current-prefix-arg) 413 (eval (list* 'read-file-name 414 (format "File, directory or pattern%s: " 416 (and path (file-name-directory path)) 418 (and path (file-name-nondirectory path)) 420 (xemacs (cons (quote 'hg-file-history) nil)) 424 (defun hg-read-number (&optional prompt default) 425 "Read a integer value." 427 (if (or (not default) current-prefix-arg) 429 (eval (list* 'read-string 431 (if default (cons (format "%d" default) nil) nil)))) 434 (defun hg-read-config () 435 "Return an alist of (key . value) pairs of Mercurial config data. 436 Each key is of the form (section . name)." 438 (dolist (line (split-string (hg-chomp (hg-run0 "debugconfig")) "\n") items) 439 (string-match "^\\([^=]*\\)=\\(.*\\)" line) 440 (let* ((left (substring line (match-beginning 1) (match-end 1))) 441 (right (substring line (match-beginning 2) (match-end 2))) 442 (key (split-string left "\\.")) 443 (value (hg-replace-in-string right "\\\\n" "\n" t))) 444 (setq items (cons (cons (cons (car key) (cadr key)) value) items)))))) 446 (defun hg-config-section (section config) 447 "Return an alist of (name . value) pairs for SECTION of CONFIG." 449 (dolist (item config items) 450 (when (equal (caar item) section) 451 (setq items (cons (cons (cdar item) (cdr item)) items)))))) 453 (defun hg-string-starts-with (sub str) 454 "Indicate whether string STR starts with the substring or character SUB." 455 (if (not (stringp sub)) 456 (and (> (length str) 0) (equal (elt str 0) sub)) 457 (let ((sub-len (length sub))) 458 (and (<= sub-len (length str)) 459 (string= sub (substring str 0 sub-len)))))) 461 (defun hg-complete-repo (string predicate all) 462 "Attempt to complete a repository name. 463 We complete on either symbolic names from Mercurial's config or real 464 directory names from the file system. We do not penalize URLs." 466 (all-completions string hg-repo-completion-table predicate) 467 (try-completion string hg-repo-completion-table predicate)) 468 (let* ((str (expand-file-name string)) 469 (dir (file-name-directory str)) 470 (file (file-name-nondirectory str))) 473 (dolist (name (delete "./" (file-name-all-completions file dir)) 475 (let ((path (concat dir name))) 476 (when (file-directory-p path) 477 (setq completions (cons name completions)))))) 478 (let ((comp (file-name-completion file dir))) 480 (hg-abbrev-file-name (concat dir comp)))))))) 482 (defun hg-read-repo-name (&optional prompt initial-contents default) 483 "Read the location of a repository." 485 (while hg-prev-buffer 486 (set-buffer hg-prev-buffer)) 487 (let (hg-repo-completion-table) 488 (if current-prefix-arg 490 (dolist (path (hg-config-section "paths" (hg-read-config))) 491 (setq hg-repo-completion-table 492 (cons (cons (car path) t) hg-repo-completion-table)) 493 (unless (hg-string-starts-with (hg-feature-cond 494 (xemacs directory-sep-char) 497 (setq hg-repo-completion-table 498 (cons (cons (cdr path) t) hg-repo-completion-table)))) 499 (completing-read (format "Repository%s: " (or prompt "")) 508 (defun hg-read-rev (&optional prompt default) 509 "Read a revision or tag, offering completions." 511 (while hg-prev-buffer 512 (set-buffer hg-prev-buffer)) 513 (let ((rev (or default "tip"))) 514 (if current-prefix-arg 515 (let ((revs (split-string 517 (hg-run0 "-q" "log" "-l" 518 (format "%d" hg-rev-completion-limit))) 520 (dolist (line (split-string (hg-chomp (hg-run0 "tags")) "\n")) 521 (setq revs (cons (car (split-string line "\\s-")) revs))) 522 (completing-read (format "Revision%s (%s): " 525 (mapcar (lambda (x) (cons x x)) revs) 533 (defun hg-parents-for-mode-line (root) 534 "Format the parents of the working directory for the mode line." 535 (let ((parents (split-string (hg-chomp 536 (hg-run0 "--cwd" root "parents" "--template" 538 (mapconcat 'identity parents "+"))) 540 (defun hg-buffers-visiting-repo (&optional path) 541 "Return a list of buffers visiting the repository containing PATH." 542 (let ((root-name (hg-root (or path (buffer-file-name)))) 545 (dolist (buf (buffer-list) bufs) 547 (let ((name (buffer-file-name))) 548 (when (and hg-status name (equal (hg-root name) root-name)) 549 (setq bufs (cons buf bufs)))))))) 551 (defun hg-update-mode-lines (path) 552 "Update the mode lines of all buffers visiting the same repository as PATH." 553 (let* ((root (hg-root path)) 554 (parents (hg-parents-for-mode-line root))) 556 (dolist (info (hg-path-status 561 (substring (buffer-file-name buf) (length root)))) 562 (hg-buffers-visiting-repo root)))) 563 (let* ((name (car info)) 565 (buf (find-buffer-visiting (concat root name)))) 568 (hg-mode-line-internal status parents))))))) 573 (defun hg-exit-view-mode (buf) 574 "Exit from hg-view-mode. 575 We delete the current window if entering hg-view-mode split the 577 (when (and (eq buf (current-buffer)) 578 (> (length (window-list)) 1)) 580 (when (buffer-live-p buf) 583 (defun hg-view-mode (prev-buffer &optional file-name) 584 (goto-char (point-min)) 585 (set-buffer-modified-p nil) 587 (hg-feature-cond (xemacs (view-minor-mode prev-buffer 'hg-exit-view-mode)) 588 (t (view-mode-enter nil 'hg-exit-view-mode))) 589 (setq hg-view-mode t) 590 (setq truncate-lines t) 592 (setq hg-view-file-name 593 (hg-abbrev-file-name file-name)))) 595 (defun hg-file-status (file) 596 "Return status of FILE, or nil if FILE does not exist or is unmanaged." 597 (let* ((s (hg-run "status" file)) 601 (let ((state (and (>= (length output) 2) 602 (= (aref output 1) ? ) 603 (assq (aref output 0) hg-state-alist)))) 608 (defun hg-path-status (root paths) 609 "Return status of PATHS in repo ROOT as an alist. 610 Each entry is a pair (FILE-NAME . STATUS)." 611 (let ((s (apply 'hg-run "--cwd" root "status" "-marduc" paths)) 613 (dolist (entry (split-string (hg-chomp (cdr s)) "\n") (nreverse result)) 615 (cond ((= (aref entry 1) ? ) 616 (setq state (assq (aref entry 0) hg-state-alist) 617 name (substring entry 2))) 618 ((string-match "\\(.*\\): " entry) 619 (setq name (match-string 1 entry)))) 620 (setq result (cons (cons name state) result)))))) 622 (defmacro hg-view-output (args &rest body) 623 "Execute BODY in a clean buffer, then quickly display that buffer. 624 If the buffer contains one line, its contents are displayed in the 625 minibuffer. Otherwise, the buffer is displayed in view-mode. 626 ARGS is of the form (BUFFER-NAME &optional FILE), where BUFFER-NAME is 627 the name of the buffer to create, and FILE is the name of the file 629 (let ((prev-buf (make-symbol "prev-buf-")) 630 (v-b-name (car args)) 631 (v-m-rest (cdr args))) 632 `(let ((view-buf-name ,v-b-name) 633 (,prev-buf (current-buffer))) 634 (get-buffer-create view-buf-name) 635 (kill-buffer view-buf-name) 636 (get-buffer-create view-buf-name) 637 (set-buffer view-buf-name) 640 (case (count-lines (point-min) (point-max)) 642 (kill-buffer view-buf-name) 643 (message "(No output)")) 645 (let ((msg (hg-chomp (buffer-substring (point-min) (point-max))))) 646 (kill-buffer view-buf-name) 649 (pop-to-buffer view-buf-name) 650 (setq hg-prev-buffer ,prev-buf) 651 (hg-view-mode ,prev-buf ,@v-m-rest)))))) 653 (put 'hg-view-output 'lisp-indent-function 1) 655 ;;; Context save and restore across revert and other operations. 657 (defun hg-position-context (pos) 658 "Return information to help find the given position again." 659 (let* ((end (min (point-max) (+ pos 98)))) 661 (buffer-substring (max (point-min) (- pos 2)) end) 664 (defun hg-buffer-context () 665 "Return information to help restore a user's editing context. 666 This is useful across reverts and merges, where a context is likely 667 to have moved a little, but not really changed." 668 (let ((point-context (hg-position-context (point))) 669 (mark-context (let ((mark (mark-marker))) 671 ;; make sure active mark 673 (marker-position mark) 674 (hg-position-context mark))))) 675 (list point-context mark-context))) 677 (defun hg-find-context (ctx) 678 "Attempt to find a context in the given buffer. 679 Always returns a valid, hopefully sane, position." 680 (let ((pos (nth 0 ctx)) 684 (goto-char (max (point-min) (- pos 15000))) 685 (if (and (not (equal str "")) 686 (search-forward str nil t)) 688 (max pos (point-min)))))) 690 (defun hg-restore-context (ctx) 691 "Attempt to restore the user's editing context." 692 (let ((point-context (nth 0 ctx)) 693 (mark-context (nth 1 ctx))) 694 (goto-char (hg-find-context point-context)) 696 (set-mark (hg-find-context mark-context))))) 701 (defun hg-mode-line-internal (status parents) 702 (setq hg-status status 703 hg-mode (and status (concat " Hg:" 710 (modified . "m")))))))) 712 (defun hg-mode-line (&optional force) 713 "Update the modeline with the current status of a file. 714 An update occurs if optional argument FORCE is non-nil, 715 hg-update-modeline is non-nil, or we have not yet checked the state of 717 (let ((root (hg-root))) 718 (when (and root (or force hg-update-modeline (not hg-mode))) 719 (let ((status (hg-file-status buffer-file-name)) 720 (parents (hg-parents-for-mode-line root))) 721 (hg-mode-line-internal status parents) 724 (defun hg-mode (&optional toggle) 725 "Minor mode for Mercurial distributed SCM integration. 727 The Mercurial mode user interface is based on that of VC mode, so if 728 you're already familiar with VC, the same keybindings and functions 731 Below is a list of many common SCM tasks. In the list, `G/L\' 732 indicates whether a key binding is global (G) to a repository or 733 local (L) to a file. Many commands take a prefix argument. 735 SCM Task G/L Key Binding Command Name 736 -------- --- ----------- ------------ 737 Help overview (what you are reading) G C-c h h hg-help-overview 739 Tell Mercurial to manage a file G C-c h a hg-add 740 Commit changes to current file only L C-x v n hg-commit-start 741 Undo changes to file since commit L C-x v u hg-revert-buffer 743 Diff file vs last checkin L C-x v = hg-diff 745 View file change history L C-x v l hg-log 746 View annotated file L C-x v a hg-annotate 748 Diff repo vs last checkin G C-c h = hg-diff-repo 749 View status of files in repo G C-c h s hg-status 750 Commit all changes G C-c h c hg-commit-start 752 Undo all changes since last commit G C-c h U hg-revert 753 View repo change history G C-c h l hg-log-repo 755 See changes that can be pulled G C-c h , hg-incoming 756 Pull changes G C-c h < hg-pull 757 Update working directory after pull G C-c h u hg-update 758 See changes that can be pushed G C-c h . hg-outgoing 759 Push changes G C-c h > hg-push" 760 (unless vc-make-backup-files 761 (set (make-local-variable 'backup-inhibited) t)) 762 (run-hooks 'hg-mode-hook)) 764 (defun hg-find-file-hook () 769 (add-hook 'find-file-hooks 'hg-find-file-hook) 771 (defun hg-after-save-hook () 773 (let ((old-status hg-status)) 775 (if (and (not old-status) hg-status) 778 (add-hook 'after-save-hook 'hg-after-save-hook) 781 ;;; User interface functions. 783 (defun hg-help-overview () 784 "This is an overview of the Mercurial SCM mode for Emacs. 786 You can find the source code, license (GPLv2+), and credits for this 787 code by typing `M-x find-library mercurial RET'." 789 (hg-view-output ("Mercurial Help Overview") 790 (insert (documentation 'hg-help-overview)) 792 (insert (documentation 'hg-mode)) 795 (delete-region pos (point))) 796 (let ((hg-root-dir (hg-root))) 797 (if (not hg-root-dir) 798 (error "error: %s: directory is not part of a Mercurial repository." 802 (defun hg-fix-paths () 803 "Fix paths reported by some Mercurial commands." 805 (goto-char (point-min)) 806 (while (re-search-forward " \\.\\.." nil t) 807 (replace-match " " nil nil)))) 810 "Add PATH to the Mercurial repository on the next commit. 811 With a prefix argument, prompt for the path to add." 812 (interactive (list (hg-read-file-name " to add"))) 813 (let ((buf (current-buffer)) 814 (update (equal buffer-file-name path))) 815 (hg-view-output (hg-output-buffer-name) 816 (apply 'call-process (hg-binary) nil t nil (list "add" path)) 818 (goto-char (point-min)) 821 (unless vc-make-backup-files 822 (set (make-local-variable 'backup-inhibited) t)) 823 (with-current-buffer buf 826 (defun hg-addremove () 828 (error "not implemented")) 830 (defun hg-annotate () 832 (error "not implemented")) 834 (defun hg-commit-toggle-file (pos) 835 "Toggle whether or not the file at POS will be committed." 840 (inhibit-read-only t) 843 (setq bol (+ (point) 4)) 844 (setq face (get-text-property bol 'face)) 848 (remove-text-properties bol (point) '(face nil)) 849 (message "%s will not be committed" 850 (buffer-substring bol (point)))) 851 (add-text-properties bol (point) '(face bold)) 852 (message "%s will be committed" 853 (buffer-substring bol (point))))))) 855 (defun hg-commit-mouse-clicked (event) 856 "Toggle whether or not the file at POS will be committed." 858 (hg-commit-toggle-file (hg-event-point event))) 860 (defun hg-commit-kill () 861 "Kill the commit currently being prepared." 863 (when (or (not (buffer-modified-p)) (y-or-n-p "Really kill this commit? ")) 864 (let ((buf hg-prev-buffer)) 866 (switch-to-buffer buf)))) 868 (defun hg-commit-finish () 869 "Finish preparing a commit, and perform the actual commit. 870 The hook hg-pre-commit-hook is run before anything else is done. If 871 the commit message is empty and hg-commit-allow-empty-message is nil, 872 an error is raised. If the list of files to commit is empty and 873 hg-commit-allow-empty-file-list is nil, an error is raised." 875 (let ((root hg-root)) 877 (run-hooks 'hg-pre-commit-hook) 878 (goto-char (point-min)) 879 (search-forward hg-commit-message-start) 881 (let ((start (point))) 882 (goto-char (point-max)) 883 (search-backward hg-commit-message-end) 884 (setq message (hg-strip (buffer-substring start (point))))) 885 (when (and (= (length message) 0) 886 (not hg-commit-allow-empty-message)) 887 (error "Cannot proceed - commit message is empty")) 890 (while (< (point) (point-max)) 891 (let ((pos (+ (point) 4))) 893 (when (eq (get-text-property pos 'face) 'bold) 895 (setq files (cons (buffer-substring pos (point)) files)))) 897 (when (and (= (length files) 0) 898 (not hg-commit-allow-empty-file-list)) 899 (error "Cannot proceed - no files to commit")) 900 (setq message (concat message "\n")) 901 (apply 'hg-run0 "--cwd" hg-root "commit" "-m" message files)) 902 (let ((buf hg-prev-buffer)) 904 (switch-to-buffer buf)) 905 (hg-update-mode-lines root)))) 907 (defun hg-commit-mode () 908 "Mode for describing a commit of changes to a Mercurial repository. 909 This involves two actions: describing the changes with a commit 910 message, and choosing the files to commit. 912 To describe the commit, simply type some text in the designated area. 914 By default, all modified, added and removed files are selected for 915 committing. Files that will be committed are displayed in bold face\; 916 those that will not are displayed in normal face. 918 To toggle whether a file will be committed, move the cursor over a 919 particular file and hit space or return. Alternatively, middle click 924 \\[hg-commit-finish] proceed with commit 925 \\[hg-commit-kill] kill commit 927 \\[hg-diff-repo] view diff of pending changes" 929 (use-local-map hg-commit-mode-map) 930 (set-syntax-table text-mode-syntax-table) 931 (setq local-abbrev-table text-mode-abbrev-table 932 major-mode 'hg-commit-mode 933 mode-name "Hg-Commit") 934 (set-buffer-modified-p nil) 935 (setq buffer-undo-list nil) 936 (run-hooks 'text-mode-hook 'hg-commit-mode-hook)) 938 (defun hg-commit-start () 939 "Prepare a commit of changes to the repository containing the current file." 941 (while hg-prev-buffer 942 (set-buffer hg-prev-buffer)) 943 (let ((root (hg-root)) 944 (prev-buffer (current-buffer)) 947 (error "Cannot commit outside a repository!")) 948 (hg-sync-buffers root) 949 (setq modified-files (hg-chomp (hg-run0 "--cwd" root "status" "-arm"))) 950 (when (and (= (length modified-files) 0) 951 (not hg-commit-allow-empty-file-list)) 952 (error "No pending changes to commit")) 953 (let* ((buf-name (format "*Mercurial: Commit %s*" root))) 954 (pop-to-buffer (get-buffer-create buf-name)) 955 (when (= (point-min) (point-max)) 956 (set (make-local-variable 'hg-root) root) 957 (setq hg-prev-buffer prev-buffer) 960 (insert hg-commit-message-end) 961 (add-text-properties bol (point) '(face bold-italic))) 962 (let ((file-area (point))) 963 (insert modified-files) 964 (goto-char file-area) 965 (while (< (point) (point-max)) 970 (add-text-properties (+ bol 4) (point) 971 '(face bold mouse-face highlight))) 973 (goto-char file-area) 974 (add-text-properties (point) (point-max) 975 `(keymap ,hg-commit-mode-file-map)) 976 (goto-char (point-min)) 977 (insert hg-commit-message-start) 978 (add-text-properties (point-min) (point) '(face bold-italic)) 982 (goto-char (point-max)) 983 (search-backward hg-commit-message-end) 984 (add-text-properties (match-beginning 0) (point-max) 986 (goto-char (point-min)) 987 (search-forward hg-commit-message-start) 988 (add-text-properties (match-beginning 0) (match-end 0) 993 (defun hg-diff (path &optional rev1 rev2) 994 "Show the differences between REV1 and REV2 of PATH. 995 When called interactively, the default behaviour is to treat REV1 as 996 the \"parent\" revision, REV2 as the current edited version of the file, and 997 PATH as the file edited in the current buffer. 998 With a prefix argument, prompt for all of these." 999 (interactive (list (hg-read-file-name " to diff") 1000 (let ((rev1 (hg-read-rev " to start with" 'parent))) 1001 (and (not (eq rev1 'parent)) rev1)) 1002 (let ((rev2 (hg-read-rev " to end with" 'working-dir))) 1003 (and (not (eq rev2 'working-dir)) rev2)))) 1004 (hg-sync-buffers path) 1005 (let ((a-path (hg-abbrev-file-name path)) 1006 ;; none revision is specified explicitly 1007 (none (and (not rev1) (not rev2))) 1008 ;; only one revision is specified explicitly 1009 (one (or (and (or (equal rev1 rev2) (not rev2)) rev1) 1010 (and (not rev1) rev2))) 1012 (hg-view-output ((cond 1014 (format "Mercurial: Diff against parent of %s" a-path)) 1016 (format "Mercurial: Diff of rev %s of %s" one a-path)) 1018 (format "Mercurial: Diff from rev %s to %s of %s" 1019 rev1 rev2 a-path)))) 1022 (call-process (hg-binary) nil t nil "diff" path)) 1024 (call-process (hg-binary) nil t nil "diff" "-r" one path)) 1026 (call-process (hg-binary) nil t nil "diff" "-r" rev1 "-r" rev2 path))) 1028 (setq diff (not (= (point-min) (point-max)))) 1029 (font-lock-fontify-buffer) 1030 (cd (hg-root path))) 1033 (defun hg-diff-repo (path &optional rev1 rev2) 1034 "Show the differences between REV1 and REV2 of repository containing PATH. 1035 When called interactively, the default behaviour is to treat REV1 as 1036 the \"parent\" revision, REV2 as the current edited version of the file, and 1037 PATH as the `hg-root' of the current buffer. 1038 With a prefix argument, prompt for all of these." 1039 (interactive (list (hg-read-file-name " to diff") 1040 (let ((rev1 (hg-read-rev " to start with" 'parent))) 1041 (and (not (eq rev1 'parent)) rev1)) 1042 (let ((rev2 (hg-read-rev " to end with" 'working-dir))) 1043 (and (not (eq rev2 'working-dir)) rev2)))) 1044 (hg-diff (hg-root path) rev1 rev2)) 1046 (defun hg-forget (path) 1047 "Lose track of PATH, which has been added, but not yet committed. 1048 This will prevent the file from being incorporated into the Mercurial 1049 repository on the next commit. 1050 With a prefix argument, prompt for the path to forget." 1051 (interactive (list (hg-read-file-name " to forget"))) 1052 (let ((buf (current-buffer)) 1053 (update (equal buffer-file-name path))) 1054 (hg-view-output (hg-output-buffer-name) 1055 (apply 'call-process (hg-binary) nil t nil (list "forget" path)) 1056 ;; "hg forget" shows pathes relative NOT TO ROOT BUT TO REPOSITORY 1058 (goto-char (point-min)) 1059 (cd (hg-root path))) 1061 (with-current-buffer buf 1062 (when (local-variable-p 'backup-inhibited) 1063 (kill-local-variable 'backup-inhibited)) 1066 (defun hg-incoming (&optional repo) 1067 "Display changesets present in REPO that are not present locally." 1068 (interactive (list (hg-read-repo-name " where changes would come from"))) 1069 (hg-view-output ((format "Mercurial: Incoming from %s to %s" 1070 (hg-abbrev-file-name (hg-root)) 1071 (hg-abbrev-file-name 1072 (or repo hg-incoming-repository)))) 1073 (call-process (hg-binary) nil t nil "incoming" 1074 (or repo hg-incoming-repository)) 1080 (error "not implemented")) 1082 (defun hg-log-mode () 1083 "Mode for viewing a Mercurial change log." 1084 (goto-char (point-min)) 1085 (when (looking-at "^searching for changes.*$") 1086 (delete-region (match-beginning 0) (match-end 0))) 1087 (run-hooks 'hg-log-mode-hook)) 1089 (defun hg-log (path &optional rev1 rev2 log-limit) 1090 "Display the revision history of PATH. 1091 History is displayed between REV1 and REV2. 1092 Number of displayed changesets is limited to LOG-LIMIT. 1093 REV1 defaults to the tip, while REV2 defaults to 0. 1094 LOG-LIMIT defaults to `hg-log-limit'. 1095 With a prefix argument, prompt for each parameter." 1096 (interactive (list (hg-read-file-name " to log") 1097 (hg-read-rev " to start with" 1099 (hg-read-rev " to end with" 1101 (hg-read-number "Output limited to: " 1103 (let ((a-path (hg-abbrev-file-name path)) 1104 (r1 (or rev1 "tip")) 1106 (limit (format "%d" (or log-limit hg-log-limit)))) 1107 (hg-view-output ((if (equal r1 r2) 1108 (format "Mercurial: Log of rev %s of %s" rev1 a-path) 1110 "Mercurial: at most %s log(s) from rev %s to %s of %s" 1111 limit r1 r2 a-path))) 1112 (eval (list* 'call-process (hg-binary) nil t nil 1114 "-r" (format "%s:%s" r1 r2) 1116 (if (> (length path) (length (hg-root path))) 1120 (cd (hg-root path))))) 1122 (defun hg-log-repo (path &optional rev1 rev2 log-limit) 1123 "Display the revision history of the repository containing PATH. 1124 History is displayed between REV1 and REV2. 1125 Number of displayed changesets is limited to LOG-LIMIT, 1126 REV1 defaults to the tip, while REV2 defaults to 0. 1127 LOG-LIMIT defaults to `hg-log-limit'. 1128 With a prefix argument, prompt for each parameter." 1129 (interactive (list (hg-read-file-name " to log") 1130 (hg-read-rev " to start with" 1132 (hg-read-rev " to end with" 1134 (hg-read-number "Output limited to: " 1136 (hg-log (hg-root path) rev1 rev2 log-limit)) 1138 (defun hg-outgoing (&optional repo) 1139 "Display changesets present locally that are not present in REPO." 1140 (interactive (list (hg-read-repo-name " where changes would go to" nil 1141 hg-outgoing-repository))) 1142 (hg-view-output ((format "Mercurial: Outgoing from %s to %s" 1143 (hg-abbrev-file-name (hg-root)) 1144 (hg-abbrev-file-name 1145 (or repo hg-outgoing-repository)))) 1146 (call-process (hg-binary) nil t nil "outgoing" 1147 (or repo hg-outgoing-repository)) 1151 (defun hg-pull (&optional repo) 1152 "Pull changes from repository REPO. 1153 This does not update the working directory." 1154 (interactive (list (hg-read-repo-name " to pull from"))) 1155 (hg-view-output ((format "Mercurial: Pull to %s from %s" 1156 (hg-abbrev-file-name (hg-root)) 1157 (hg-abbrev-file-name 1158 (or repo hg-incoming-repository)))) 1159 (call-process (hg-binary) nil t nil "pull" 1160 (or repo hg-incoming-repository)) 1163 (defun hg-push (&optional repo) 1164 "Push changes to repository REPO." 1165 (interactive (list (hg-read-repo-name " to push to"))) 1166 (hg-view-output ((format "Mercurial: Push from %s to %s" 1167 (hg-abbrev-file-name (hg-root)) 1168 (hg-abbrev-file-name 1169 (or repo hg-outgoing-repository)))) 1170 (call-process (hg-binary) nil t nil "push" 1171 (or repo hg-outgoing-repository)) 1174 (defun hg-revert-buffer-internal () 1175 (let ((ctx (hg-buffer-context))) 1176 (message "Reverting %s..." buffer-file-name) 1177 (hg-run0 "revert" buffer-file-name) 1178 (revert-buffer t t t) 1179 (hg-restore-context ctx) 1181 (message "Reverting %s...done" buffer-file-name))) 1183 (defun hg-revert-buffer () 1184 "Revert current buffer's file back to the latest committed version. 1185 If the file has not changed, nothing happens. Otherwise, this 1186 displays a diff and asks for confirmation before reverting." 1188 (let ((vc-suppress-confirm nil) 1189 (obuf (current-buffer)) 1193 (setq diff (hg-diff buffer-file-name)) 1195 (unless (yes-or-no-p "Discard changes? ") 1196 (error "Revert cancelled"))) 1198 (let ((buf (current-buffer))) 1199 (delete-window (selected-window)) 1200 (kill-buffer buf)))) 1203 (hg-revert-buffer-internal)))) 1205 (defun hg-root (&optional path) 1206 "Return the root of the repository that contains the given path. 1207 If the path is outside a repository, return nil. 1208 When called interactively, the root is printed. A prefix argument 1209 prompts for a path to check." 1210 (interactive (list (hg-read-file-name))) 1211 (if (or path (not hg-root)) 1212 (let ((root (do ((prev nil dir) 1213 (dir (file-name-directory 1217 (expand-file-name default-directory))) 1218 (file-name-directory (directory-file-name dir)))) 1220 (when (file-directory-p (concat dir ".hg")) 1222 (when (interactive-p) 1224 (message "The root of this repository is `%s'." root) 1225 (message "The path `%s' is not in a Mercurial repository." 1226 (hg-abbrev-file-name path)))) 1230 (defun hg-cwd (&optional path) 1231 "Return the current directory of PATH within the repository." 1232 (do ((stack nil (cons (file-name-nondirectory 1233 (directory-file-name dir)) 1236 (dir (file-name-directory (or path buffer-file-name 1237 (expand-file-name default-directory))) 1238 (file-name-directory (directory-file-name dir)))) 1240 (when (file-directory-p (concat dir ".hg")) 1241 (let ((cwd (mapconcat 'identity stack "/"))) 1242 (unless (equal cwd "") 1243 (return (file-name-as-directory cwd))))))) 1245 (defun hg-status (path) 1246 "Print revision control status of a file or directory. 1247 With prefix argument, prompt for the path to give status for. 1248 Names are displayed relative to the repository root." 1249 (interactive (list (hg-read-file-name " for status" (hg-root)))) 1250 (let ((root (hg-root))) 1251 (hg-view-output ((format "Mercurial: Status of %s in %s" 1252 (let ((name (substring (expand-file-name path) 1254 (if (> (length name) 0) 1257 (hg-abbrev-file-name root))) 1258 (apply 'call-process (hg-binary) nil t nil 1259 (list "--cwd" root "status" path)) 1260 (cd (hg-root path))))) 1264 (error "not implemented")) 1268 (error "not implemented")) 1270 (defun hg-version-other-window (rev) 1271 "Visit version REV of the current file in another window. 1272 If the current file is named `F', the version is named `F.~REV~'. 1273 If `F.~REV~' already exists, use it instead of checking it out again." 1274 (interactive "sVersion to visit (default is workfile version): ") 1275 (let* ((file buffer-file-name) 1276 (version (if (string-equal rev "") 1279 (automatic-backup (vc-version-backup-file-name file version)) 1280 (manual-backup (vc-version-backup-file-name file version 'manual))) 1281 (unless (file-exists-p manual-backup) 1282 (if (file-exists-p automatic-backup) 1283 (rename-file automatic-backup manual-backup nil) 1284 (hg-run0 "-q" "cat" "-r" version "-o" manual-backup file))) 1285 (find-file-other-window manual-backup))) 1288 (provide 'mercurial) 1291 ;;; Local Variables: 1292 ;;; prompt-to-byte-compile: nil