lisp/ob-shell.el: Initialize explicit-shell-file-name

* lisp/ob-shell.el (org-babel-shell-initialize): force blocks to
always use the specified shell language

Sessions are initialized using `shell'.  The `shell' command checks
`explicit-shell-file-name' for file to use before checking other
variables, like `shell-file-name'.  Previously, only `shell-file-name'
was set.  So, if the user had set the `explicit-shell-file-name',
session blocks would use that whereas non-session blocks would use
`shell-file-name', resulting in inconsistent behavior.  This change
sets both variables so that even if the user changes the
`explicit-shell-file-name' or `shell-file-name', blocks will only use
the shell language specified by the block.

TINYCHANGE

check.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+set -Eeuo pipefail
+
+make autoloads
+emacs -q --eval="(add-to-list 'load-path \"/home/ahab/Projects/org-mode/lisp\")"

lisp/ob-shell.el

@@ -81,7 +81,8 @@ is modified outside the Customize interface."
         (lambda (body params)
 	  (:documentation
            (format "Execute a block of %s commands with Babel." name))
-	  (let ((shell-file-name name))
+	  (let ((explicit-shell-file-name name)
+                (shell-file-name name))
 	    (org-babel-execute:shell body params))))
       (put fname 'definition-name 'org-babel-shell-initialize))
     (defalias (intern (concat "org-babel-variable-assignments:" name))

nohup.out

@@ -0,0 +1,21 @@
+/home/ahab/.guix-profile/bin/emacsclient: can't find socket; have you started the server?
+/home/ahab/.guix-profile/bin/emacsclient: To start the server in Emacs, type "M-x server-start".
+/home/ahab/.guix-profile/bin/emacsclient: No socket or alternate editor.  Please use:
+
+	--socket-name
+	--server-file      (or environment variable EMACS_SERVER_FILE)
+	--alternate-editor (or environment variable ALTERNATE_EDITOR)
+/home/ahab/.guix-profile/bin/emacsclient: can't find socket; have you started the server?
+/home/ahab/.guix-profile/bin/emacsclient: To start the server in Emacs, type "M-x server-start".
+/home/ahab/.guix-profile/bin/emacsclient: No socket or alternate editor.  Please use:
+
+	--socket-name
+	--server-file      (or environment variable EMACS_SERVER_FILE)
+	--alternate-editor (or environment variable ALTERNATE_EDITOR)
+/home/ahab/.guix-profile/bin/emacsclient: can't find socket; have you started the server?
+/home/ahab/.guix-profile/bin/emacsclient: To start the server in Emacs, type "M-x server-start".
+/home/ahab/.guix-profile/bin/emacsclient: No socket or alternate editor.  Please use:
+
+	--socket-name
+	--server-file      (or environment variable EMACS_SERVER_FILE)
+	--alternate-editor (or environment variable ALTERNATE_EDITOR)

setup.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+
+set -Eeuo pipefail
+
+echo "[DEV] Setting up ssh..."
+eval "$(ssh-agent)"
+ssh-add /home/ahab/.ssh/id_org
+echo "[DEV] SSH setup complete"
+
+echo "[DEV] Rebuilding..."
+make
+echo "[DEV] Rebuilt"
+
+echo "[DEV] Restarting emacsd..."
+herd restart emacsd
+echo "[DEV] emacsd restarted"