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bug#25859: 25.1.91; add some branch operations to vc-dir


From: Tom Tromey
Subject: bug#25859: 25.1.91; add some branch operations to vc-dir
Date: Fri, 24 Feb 2017 00:57:34 -0700

This adds a few branching operations to vc-dir:

* create a branch
* switch branches
* show the commit log of a branch
* remember the branch history in a -history variable

For the commit log it might nice to show it in a buffer whose name
contains the branch name.  There's a similar bug I opened about making
the *vc-change-log* buffer per-vc-dir-directory.

commit 6f9a168c624f20668aa5f32c2926d3690addd543
Author: Tom Tromey <address@hidden>
Date:   Wed Feb 15 05:19:50 2017 -0700

    Add more branch support to vc-dir
    
    * lisp/vc/vc-dir.el (vc-dir-mode-map) Add "B" bindings.
    * lisp/vc/vc.el (vc-revision-history): New defvar.
    (vc-read-revision): Use vc-revision-history.
    (vc-print-branch-log): New function.

diff --git a/lisp/vc/vc-dir.el b/lisp/vc/vc-dir.el
index 21bd21e..0363aab 100644
--- a/lisp/vc/vc-dir.el
+++ b/lisp/vc/vc-dir.el
@@ -297,6 +297,12 @@ vc-dir-mode-map
     (define-key map (kbd "M-s a M-C-s") 'vc-dir-isearch-regexp)
     (define-key map "G" 'vc-dir-ignore)
 
+    (let ((branch-map (make-sparse-keymap)))
+      (define-key map "B" branch-map)
+      (define-key branch-map "c" 'vc-create-tag)
+      (define-key branch-map "l" 'vc-print-branch-log)
+      (define-key branch-map "s" 'vc-retrieve-tag))
+
     ;; Hook up the menu.
     (define-key map [menu-bar vc-dir-mode]
       `(menu-item
diff --git a/lisp/vc/vc.el b/lisp/vc/vc.el
index 0c8492d..c5fe8aa 100644
--- a/lisp/vc/vc.el
+++ b/lisp/vc/vc.el
@@ -1757,6 +1757,9 @@ vc-diff-internal
       ;; because we don't know that yet.
       t)))
 
+(defvar vc-revision-history nil
+  "History for `vc-read-revision'.")
+
 (defun vc-read-revision (prompt &optional files backend default initial-input)
   (cond
    ((null files)
@@ -1768,7 +1771,7 @@ vc-read-revision
          (vc-call-backend backend 'revision-completion-table files)))
     (if completion-table
         (completing-read prompt completion-table
-                         nil nil initial-input nil default)
+                         nil nil initial-input 'vc-revision-history default)
       (read-string prompt initial-input nil default))))
 
 (defun vc-diff-build-argument-list-internal ()
@@ -2373,6 +2376,17 @@ vc-print-root-log
     (vc-print-log-internal backend (list rootdir) nil nil limit)))
 
 ;;;###autoload
+(defun vc-print-branch-log (branch)
+  (interactive
+   (list
+    (vc-read-revision "Branch to log: ")))
+  (when (equal branch "")
+    (error "No branch specified"))
+  (vc-print-log-internal (vc-responsible-backend default-directory)
+                         (list default-directory) branch t
+                         (when (> vc-log-show-limit 0) vc-log-show-limit)))
+
+;;;###autoload
 (defun vc-log-incoming (&optional remote-location)
   "Show a log of changes that will be received with a pull operation from 
REMOTE-LOCATION.
 When called interactively with a prefix argument, prompt for REMOTE-LOCATION."

Tom




In GNU Emacs 25.1.91.2 (x86_64-unknown-linux-gnu, GTK+ Version 3.22.7)
 of 2017-02-02 built on bapiya
Repository revision: 7e02a477bbcabb4e65aeecade79b67357c0b9dae
Windowing system distributor 'Fedora Project', version 11.0.11901000
System Description:     Fedora release 25 (Twenty Five)

Configured using:
 'configure --prefix=/home/tromey/Emacs/install/ --with-modules'

Configured features:
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NOTIFY LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11 MODULES

Important settings:
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  value of $XMODIFIERS: @im=ibus
  locale-coding-system: utf-8-unix

Major mode: Emacs-Lisp

Minor modes in effect:
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  erc-fill-mode: t
  erc-stamp-mode: t
  erc-irccontrols-mode: t
  erc-noncommands-mode: t
  erc-move-to-prompt-mode: t
  erc-readonly-mode: t
  savehist-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  eldoc-mode: t
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  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  auto-composition-mode: t
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  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  auto-fill-function: do-auto-fill
  transient-mark-mode: t

Recent messages:
vc-read-revision
B TAB is undefined
Type C-x 1 to delete the help window.
Making completion list...
Quit
Making completion list...
user-error: Beginning of history; no preceding item
Quit
Mark set
When done with a buffer, type C-x #

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Memory information:
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