Extend backend-agnostic vc functionality

this commit adds a default keybinding for the vc-gutter hydra (leader-g
.) if both vc-gutter and hydra are enabled. It ensures that the various
vc-*-log-view-modes open up in emacs state, and it adds hg, svn and bzr
to the list of vc backends handled by git-gutter

modules/emacs/vc/config.el

@@ -3,18 +3,31 @@
 (when IS-WINDOWS
   (setenv "GIT_ASKPASS" "git-gui--askpass"))
 
+(after! log-view
+  (set-evil-initial-state!
+    '(log-view-mode
+      vc-git-log-view-mode
+      vc-hg-log-view-mode
+      vc-bzr-log-view-mode
+      vc-svn-log-view-mode)
+    'emacs)
+  (evil-define-key* '(emacs) log-view-mode-map (kbd doom-leader-key) 'doom/leader)
+  (map! :mode log-view-mode
+        "j" #'log-view-msg-next
+        "k" #'log-view-msg-prev))
 
 (after! vc-annotate
   (set-popup-rules!
-    '(("^\\vc-d" :select nil) ; *vc-diff*
-      ("^\\vc-c" :select t))) ; *vc-change-log*
+    '(("^\\*vc-diff" :select nil)   ; *vc-diff*
+      ("^\\*vc-change" :select t))) ; *vc-change-log*
   (set-evil-initial-state!
-    '(vc-annotate-mode vc-git-log-view-mode)
+    '(vc-annotate-mode)
     'normal)
 
   ;; Clean up after itself
   (define-key vc-annotate-mode-map [remap quit-window] #'kill-current-buffer))
 
+(after! vc-dir (set-evil-initial-state! '(vc-dir-mode) 'emacs))
 
 (after! git-timemachine
   ;; Sometimes I forget `git-timemachine' is enabled in a buffer, so instead of