X-Git-Url: https://git.distorted.org.uk/~mdw/stgit/blobdiff_plain/0663524d44cf6256c812a186feca2e9b4d8d1aa7..0f076fe6b1a561a3a84a2f5938110118944577a2:/contrib/stgit.el

diff --git a/contrib/stgit.el b/contrib/stgit.el
index 09dec8b..220e159 100644
--- a/contrib/stgit.el
+++ b/contrib/stgit.el
@@ -1,8 +1,32 @@
+;; stgit.el: An emacs mode for StGit
+;;
+;; Copyright (C) 2007 David KÃ¥gedal <davidk@lysator.liu.se>
+;;
+;; To install: put this file on the load-path and place the following
+;; in your .emacs file:
+;;
+;;    (require 'stgit)
+;;
+;; To start: `M-x stgit'
+
+(require 'git nil t)
+
 (defun stgit (dir)
   "Manage stgit patches"
   (interactive "DDirectory: \n")
-  (switch-to-stgit-buffer dir)
-  (stgit-refresh))
+  (switch-to-stgit-buffer (git-get-top-dir dir))
+  (stgit-reload))
+
+(defun git-get-top-dir (dir)
+  "Retrieve the top-level directory of a git tree."
+  (let ((cdup (with-output-to-string
+                (with-current-buffer standard-output
+                  (cd dir)
+                  (unless (eq 0 (call-process "git" nil t nil
+                                              "rev-parse" "--show-cdup"))
+                    (error "cannot find top-level git tree for %s." dir))))))
+    (expand-file-name (concat (file-name-as-directory dir)
+                              (car (split-string cdup "\n"))))))
 
 (defun switch-to-stgit-buffer (dir)
   "Switch to a (possibly new) buffer displaying StGit patches for DIR"
@@ -30,19 +54,32 @@ Argument DIR is the repository path."
 
 (defmacro stgit-capture-output (name &rest body)
   "Capture StGit output and show it in a window at the end"
-  `(let ((output-buf (get-buffer-create ,(or name "*StGit output*"))))
+  `(let ((output-buf (get-buffer-create ,(or name "*StGit output*")))
+         (stgit-dir default-directory)
+         (inhibit-read-only t))
      (with-current-buffer output-buf
-       (erase-buffer))
+       (erase-buffer)
+       (setq default-directory stgit-dir)
+       (setq buffer-read-only t))
      (let ((standard-output output-buf))
        ,@body)
-     (if (with-current-buffer output-buf (< (point-min) (point-max)))
-         (display-buffer output-buf t))))
+     (with-current-buffer output-buf
+       (set-buffer-modified-p nil)
+       (setq buffer-read-only t)
+       (if (< (point-min) (point-max))
+           (display-buffer output-buf t)))))
 (put 'stgit-capture-output 'lisp-indent-function 1)
 
-(defun stgit-run (&rest args)
+(defun stgit-run-silent (&rest args)
   (apply 'call-process "stg" nil standard-output nil args))
 
-(defun stgit-refresh ()
+(defun stgit-run (&rest args)
+  (let ((msgcmd (mapconcat #'identity args " ")))
+    (message "Running stg %s..." msgcmd)
+    (apply 'call-process "stg" nil standard-output nil args)
+    (message "Running stg %s...done" msgcmd)))
+
+(defun stgit-reload ()
   "Update the contents of the stgit buffer"
   (interactive)
   (let ((inhibit-read-only t)
@@ -50,12 +87,80 @@ Argument DIR is the repository path."
         (curpatch (stgit-patch-at-point)))
     (erase-buffer)
     (insert "Branch: ")
-    (stgit-run "branch")
-    (stgit-run "series")
+    (stgit-run-silent "branch")
+    (stgit-run-silent "series" "--description")
+    (stgit-rescan)
     (if curpatch
         (stgit-goto-patch curpatch)
       (goto-line curline))))
 
+(defface stgit-description-face
+  '((((background dark)) (:foreground "tan"))
+    (((background light)) (:foreground "dark red")))
+  "The face used for StGit desriptions")
+
+(defface stgit-top-patch-face
+  '((((background dark)) (:weight bold :foreground "yellow"))
+    (((background light)) (:weight bold :foreground "purple"))
+    (t (:weight bold)))
+  "The face used for the top patch names")
+
+(defface stgit-applied-patch-face
+  '((((background dark)) (:foreground "light yellow"))
+    (((background light)) (:foreground "purple"))
+    (t ()))
+  "The face used for applied patch names")
+
+(defface stgit-unapplied-patch-face
+  '((((background dark)) (:foreground "gray80"))
+    (((background light)) (:foreground "orchid"))
+    (t ()))
+  "The face used for unapplied patch names")
+
+(defun stgit-rescan ()
+  "Rescan the status buffer."
+  (save-excursion
+    (let ((marked ()))
+      (goto-char (point-min))
+      (while (not (eobp))
+        (cond ((looking-at "Branch: \\(.*\\)")
+               (put-text-property (match-beginning 1) (match-end 1)
+                                  'face 'bold))
+              ((looking-at "\\([>+-]\\)\\( \\)\\([^ ]+\\) *[|#] \\(.*\\)")
+               (let ((state (match-string 1))
+                     (patchsym (intern (match-string 3))))
+                 (put-text-property
+                  (match-beginning 3) (match-end 3) 'face
+                  (cond ((string= state ">") 'stgit-top-patch-face)
+                        ((string= state "+") 'stgit-applied-patch-face)
+                        ((string= state "-") 'stgit-unapplied-patch-face)))
+                 (put-text-property (match-beginning 4) (match-end 4)
+                                    'face 'stgit-description-face)
+                 (when (memq patchsym stgit-marked-patches)
+                   (replace-match "*" nil nil nil 2)
+                   (setq marked (cons patchsym marked)))))
+              ((or (looking-at "stg series: Branch \".*\" not initialised")
+                   (looking-at "stg series: .*: branch not initialized"))
+               (forward-line 1)
+               (insert "Run M-x stgit-init to initialise")))
+        (forward-line 1))
+      (setq stgit-marked-patches (nreverse marked)))))
+
+(defun stgit-quit ()
+  "Hide the stgit buffer"
+  (interactive)
+  (bury-buffer))
+
+(defun stgit-git-status ()
+  "Show status using `git-status'"
+  (interactive)
+  (unless (fboundp 'git-status)
+    (error "stgit-git-status requires git-status"))
+  (let ((dir default-directory))
+    (save-selected-window
+      (pop-to-buffer nil)
+      (git-status dir))))
+
 (defvar stgit-mode-hook nil
   "Run after `stgit-mode' is setup.")
 
@@ -65,13 +170,34 @@ Argument DIR is the repository path."
 (unless stgit-mode-map
   (setq stgit-mode-map (make-keymap))
   (suppress-keymap stgit-mode-map)
-  (define-key stgit-mode-map "?"   'stgit-help)
-  (define-key stgit-mode-map "h"   'stgit-help)
-  (define-key stgit-mode-map "g"   'stgit-refresh)
-  (define-key stgit-mode-map "r"   'stgit-rename)
-  (define-key stgit-mode-map ">"   'stgit-push-next)
-  (define-key stgit-mode-map "<"   'stgit-pop)
-  (define-key stgit-mode-map "="   'stgit-show))
+  (mapc (lambda (arg) (define-key stgit-mode-map (car arg) (cdr arg)))
+        '((" " .        stgit-mark)
+          ("m" .        stgit-mark)
+          ("\d" .       stgit-unmark-up)
+          ("u" .        stgit-unmark-down)
+          ("?" .        stgit-help)
+          ("h" .        stgit-help)
+          ("p" .        previous-line)
+          ("n" .        next-line)
+          ("s" .        stgit-git-status)
+          ("g" .        stgit-reload)
+          ("r" .        stgit-refresh)
+          ("\C-c\C-r" . stgit-rename)
+          ("e" .        stgit-edit)
+          ("c" .        stgit-coalesce)
+          ("N" .        stgit-new)
+          ("R" .        stgit-repair)
+          ("C" .        stgit-commit)
+          ("U" .        stgit-uncommit)
+          (">" .        stgit-push-next)
+          ("<" .        stgit-pop-next)
+          ("P" .        stgit-push-or-pop)
+          ("G" .        stgit-goto)
+          ("=" .        stgit-show)
+          ("D" .        stgit-delete)
+          ([(control ?/)] . stgit-undo)
+          ("\C-_" .     stgit-undo)
+          ("q" . stgit-quit))))
 
 (defun stgit-mode ()
   "Major mode for interacting with StGit.
@@ -84,26 +210,81 @@ Commands:
         goal-column 2)
   (use-local-map stgit-mode-map)
   (set (make-local-variable 'list-buffers-directory) default-directory)
+  (set (make-local-variable 'stgit-marked-patches) nil)
+  (set-variable 'truncate-lines 't)
   (run-hooks 'stgit-mode-hook))
 
+(defun stgit-add-mark (patch)
+  (let ((patchsym (intern patch)))
+    (setq stgit-marked-patches (cons patchsym stgit-marked-patches))))
+
+(defun stgit-remove-mark (patch)
+  (let ((patchsym (intern patch)))
+    (setq stgit-marked-patches (delq patchsym stgit-marked-patches))))
+
+(defun stgit-clear-marks ()
+  (setq stgit-marked-patches '()))
+
+(defun stgit-marked-patches ()
+  "Return the names of the marked patches."
+  (mapcar 'symbol-name stgit-marked-patches))
+
 (defun stgit-patch-at-point ()
   "Return the patch name on the current line"
   (save-excursion
     (beginning-of-line)
-    (if (looking-at "[>+-] \\(.*\\)")
-        (match-string 1)
+    (if (looking-at "[>+-][ *]\\([^ ]*\\)")
+        (match-string-no-properties 1)
       nil)))
 
+(defun stgit-patches-marked-or-at-point ()
+  "Return the names of the marked patches, or the patch on the current line."
+  (if stgit-marked-patches
+      (stgit-marked-patches)
+    (let ((patch (stgit-patch-at-point)))
+      (if patch
+          (list patch)
+        '()))))
+
 (defun stgit-goto-patch (patch)
   "Move point to the line containing PATCH"
   (let ((p (point)))
     (goto-char (point-min))
-    (if (re-search-forward (concat "[>+-] " (regexp-quote patch) "$") nil t)
+    (if (re-search-forward (concat "^[>+-][ *]" (regexp-quote patch) " ") nil t)
         (progn (move-to-column goal-column)
                t)
       (goto-char p)
       nil)))
 
+(defun stgit-init ()
+  "Run stg init"
+  (interactive)
+  (stgit-capture-output nil
+    (stgit-run "init"))
+  (stgit-reload))
+
+(defun stgit-mark ()
+  "Mark the patch under point"
+  (interactive)
+  (let ((patch (stgit-patch-at-point)))
+    (stgit-add-mark patch)
+    (stgit-reload))
+  (next-line))
+
+(defun stgit-unmark-up ()
+  "Remove mark from the patch on the previous line"
+  (interactive)
+  (forward-line -1)
+  (stgit-remove-mark (stgit-patch-at-point))
+  (stgit-reload))
+
+(defun stgit-unmark-down ()
+  "Remove mark from the patch on the current line"
+  (interactive)
+  (stgit-remove-mark (stgit-patch-at-point))
+  (forward-line)
+  (stgit-reload))
+
 (defun stgit-rename (name)
   "Rename the patch under point"
   (interactive (list (read-string "Patch name: " (stgit-patch-at-point))))
@@ -112,26 +293,65 @@ Commands:
       (error "No patch on this line"))
     (stgit-capture-output nil
       (stgit-run "rename" old-name name))
-    (stgit-refresh)
+    (stgit-reload)
     (stgit-goto-patch name)))
 
-(defun stgit-push-next ()
-  "Push the patch on the line after pos"
+(defun stgit-repair ()
+  "Run stg repair"
   (interactive)
-  (forward-line 1)
-  (let ((patch (stgit-patch-at-point)))
+  (stgit-capture-output nil
+    (stgit-run "repair"))
+  (stgit-reload))
+
+(defun stgit-commit ()
+  "Run stg commit."
+  (interactive)
+  (stgit-capture-output nil (stgit-run "commit"))
+  (stgit-reload))
+
+(defun stgit-uncommit (arg)
+  "Run stg uncommit. Numeric arg determines number of patches to uncommit."
+  (interactive "p")
+  (stgit-capture-output nil (stgit-run "uncommit" "-n" (number-to-string arg)))
+  (stgit-reload))
+
+(defun stgit-push-next (npatches)
+  "Push the first unapplied patch.
+With numeric prefix argument, push that many patches."
+  (interactive "p")
+  (stgit-capture-output nil (stgit-run "push" "-n"
+                                       (number-to-string npatches)))
+  (stgit-reload))
+
+(defun stgit-pop-next (npatches)
+  "Pop the topmost applied patch.
+With numeric prefix argument, pop that many patches."
+  (interactive "p")
+  (stgit-capture-output nil (stgit-run "pop" "-n" (number-to-string npatches)))
+  (stgit-reload))
+
+(defun stgit-applied-at-point ()
+  "Is the patch on the current line applied?"
+  (save-excursion
+    (beginning-of-line)
+    (looking-at "[>+]")))
+
+(defun stgit-push-or-pop ()
+  "Push or pop the patch on the current line"
+  (interactive)
+  (let ((patch (stgit-patch-at-point))
+        (applied (stgit-applied-at-point)))
     (stgit-capture-output nil
-      (stgit-run "push" patch))
-    (stgit-refresh)))
+      (stgit-run (if applied "pop" "push") patch))
+    (stgit-reload)))
 
-(defun stgit-pop ()
-  "Pop the patch on the current line"
+(defun stgit-goto ()
+  "Go to the patch on the current line"
   (interactive)
   (let ((patch (stgit-patch-at-point)))
     (stgit-capture-output nil
-      (stgit-run "pop" patch))
-    (stgit-refresh)
-    (previous-line)))
+      (stgit-run "goto" patch))
+    (stgit-reload)))
 
 (defun stgit-show ()
   "Show the patch on the current line"
@@ -142,7 +362,128 @@ Commands:
       (goto-char (point-min))
       (diff-mode))))
 
+(defun stgit-edit ()
+  "Edit the patch on the current line"
+  (interactive)
+  (let ((patch (stgit-patch-at-point))
+        (edit-buf (get-buffer-create "*StGit edit*"))
+        (dir default-directory))
+    (log-edit 'stgit-confirm-edit t nil edit-buf)
+    (set (make-local-variable 'stgit-edit-patch) patch)
+    (setq default-directory dir)
+    (let ((standard-output edit-buf))
+      (stgit-run-silent "edit" "--save-template=-" patch))))
+
+(defun stgit-confirm-edit ()
+  (interactive)
+  (let ((file (make-temp-file "stgit-edit-")))
+    (write-region (point-min) (point-max) file)
+    (stgit-capture-output nil
+      (stgit-run "edit" "-f" file stgit-edit-patch))
+    (with-current-buffer log-edit-parent-buffer
+      (stgit-reload))))
+
+(defun stgit-new ()
+  "Create a new patch"
+  (interactive)
+  (let ((edit-buf (get-buffer-create "*StGit edit*")))
+    (log-edit 'stgit-confirm-new t nil edit-buf)))
+
+(defun stgit-confirm-new ()
+  (interactive)
+  (let ((file (make-temp-file "stgit-edit-")))
+    (write-region (point-min) (point-max) file)
+    (stgit-capture-output nil
+      (stgit-run "new" "-f" file))
+    (with-current-buffer log-edit-parent-buffer
+      (stgit-reload))))
+
+(defun stgit-create-patch-name (description)
+  "Create a patch name from a long description"
+  (let ((patch ""))
+    (while (> (length description) 0)
+      (cond ((string-match "\\`[a-zA-Z_-]+" description)
+             (setq patch (downcase (concat patch (match-string 0 description))))
+             (setq description (substring description (match-end 0))))
+            ((string-match "\\` +" description)
+             (setq patch (concat patch "-"))
+             (setq description (substring description (match-end 0))))
+            ((string-match "\\`[^a-zA-Z_-]+" description)
+             (setq description (substring description (match-end 0))))))
+    (cond ((= (length patch) 0)
+           "patch")
+          ((> (length patch) 20)
+           (substring patch 0 20))
+          (t patch))))
+
+(defun stgit-delete (patch-names)
+  "Delete the named patches"
+  (interactive (list (stgit-patches-marked-or-at-point)))
+  (if (zerop (length patch-names))
+      (error "No patches to delete")
+    (when (yes-or-no-p (format "Really delete %d patches? "
+                               (length patch-names)))
+      (stgit-capture-output nil
+        (apply 'stgit-run "delete" patch-names))
+      (stgit-reload))))
+
+(defun stgit-coalesce (patch-names)
+  "Run stg coalesce on the named patches"
+  (interactive (list (stgit-marked-patches)))
+  (let ((edit-buf (get-buffer-create "*StGit edit*"))
+        (dir default-directory))
+    (log-edit 'stgit-confirm-coalesce t nil edit-buf)
+    (set (make-local-variable 'stgit-patches) patch-names)
+    (setq default-directory dir)
+    (let ((standard-output edit-buf))
+      (apply 'stgit-run-silent "coalesce" "--save-template=-" patch-names))))
+
+(defun stgit-confirm-coalesce ()
+  (interactive)
+  (let ((file (make-temp-file "stgit-edit-")))
+    (write-region (point-min) (point-max) file)
+    (stgit-capture-output nil
+      (apply 'stgit-run "coalesce" "-f" file stgit-patches))
+    (with-current-buffer log-edit-parent-buffer
+      (stgit-clear-marks)
+      ;; Go to first marked patch and stay there
+      (goto-char (point-min))
+      (re-search-forward (concat "^[>+-]\\*") nil t)
+      (move-to-column goal-column)
+      (let ((pos (point)))
+        (stgit-reload)
+        (goto-char pos)))))
+
 (defun stgit-help ()
   "Display help for the StGit mode."
   (interactive)
   (describe-function 'stgit-mode))
+
+(defun stgit-undo (&optional arg)
+  "Run stg undo.
+With prefix argument, run it with the --hard flag."
+  (interactive "P")
+  (stgit-capture-output nil
+    (if arg
+        (stgit-run "undo" "--hard")
+      (stgit-run "undo")))
+  (stgit-reload))
+
+(defun stgit-refresh (&optional arg)
+  "Run stg refresh.
+With prefix argument, refresh the patch under point."
+  (interactive "P")
+  (let ((patchargs (if arg
+                       (let ((patches (stgit-patches-marked-or-at-point)))
+                         (cond ((null patches)
+                                (error "no patch to update"))
+                               ((> (length patches) 1)
+                                (error "too many patches selected"))
+                               (t
+                                (cons "-p" patches))))
+                     nil)))
+    (stgit-capture-output nil
+      (apply 'stgit-run "refresh" patchargs)))
+  (stgit-reload))
+
+(provide 'stgit)