Docker: Followup for syl20bnr#15414: fix bindings not loading, add docs (syl20bnr#15707)

* [docker] Followup for syl20bnr#15414: Fix bindings not being added, add docs.

* [docker] Wrap `:config` block in a `progn`, as per CONVENTIONS.org.

* [docker] Fix key binding in documentation.

Co-authored-by: Tommi Komulainen <[email protected]>

Co-authored-by: Tommi Komulainen <[email protected]>

Author: pataquets

layers/+tools/docker/README.org

@@ -74,6 +74,9 @@ auto-completion of the running containers.
 
 | Key binding | Description                                                       |
 |-------------+-------------------------------------------------------------------|
-| ~SPC m c b~ | build current buffer                                              |
-| ~SPC m c B~ | build current buffer without cache                                |
 | ~SPC a t d~ | entry point to interact with dockers, after that use ~?~ for help |
+| ~SPC m b~   | build current buffer                                              |
+| ~SPC m B~   | build current buffer without cache                                |
+| ~SPC m d~   | shortcut for ~docker.el~ main menu                                |
+| ~SPC m i~   | shortcut for 'docker images' in the ~docker.el~ screen            |
+| ~SPC m p~   | shortcut for 'docker containers' in the ~docker.el~ screen        |

layers/+tools/docker/packages.el

@@ -50,14 +50,15 @@
     :defer t
     :init (add-hook 'dockerfile-mode-local-vars-hook #'spacemacs//docker-dockerfile-setup-backend)
     :config
-    (spacemacs/set-leader-keys-for-major-mode 'dockerfile-mode
-      (if (null docker-dockerfile-backend) "b" "cb") 'dockerfile-build-buffer
-      (if (null docker-dockerfile-backend) "B" "cB") 'dockerfile-build-buffer-no-cache-buffer)
-    (with-eval-after-load 'docker
+    (progn
       (spacemacs/set-leader-keys-for-major-mode 'dockerfile-mode
-        "d" 'docker
-        "i" 'docker-images
-        "p" 'docker-containers))))
+        (if (null docker-dockerfile-backend) "b" "cb") 'dockerfile-build-buffer
+        (if (null docker-dockerfile-backend) "B" "cB") 'dockerfile-build-buffer-no-cache-buffer)
+      (if (package-installed-p 'docker)
+        (spacemacs/set-leader-keys-for-major-mode 'dockerfile-mode
+          "d" 'docker
+          "i" 'docker-images
+          "p" 'docker-containers)))))
 
 (defun docker/post-init-flycheck ()
   (spacemacs/enable-flycheck 'dockerfile-mode))