bug#27844: 26.0.50; Dired w/ eshell-ls doesn't support wildcards in file name

[Tino Calancha]

Dired with eshell-ls doesn't handle wildcards in file names.
emacs -Q -l em-ls -eval "(customize-set-variable 'eshell-ls-use-in-dired t)"

I)
M-: (dired source-directory) RET
C-x d lisp/*.el RET

II)
;; Following works but it shows full file name, instead of the
;; more common relative file name.
C-x d lisp/simple.el RET

--8<-----------------------------cut here---------------start------------->8---
commit 8826109f3b619b59b7d68afa55e446e0c487ca76
Author: Tino Calancha <tino.calancha@gmail.com>
Date:   Thu Jul 27 12:21:15 2017 +0900

    Dired w/ eshell-ls: Handle shell wildcards in file name
    
    * lisp/eshell/em-ls.el (eshell-ls--insert-directory):
    Use eshell-extended-glob (Bug#27844).
    * test/lisp/dired-tests.el (dired-test-bug27844): Add test.

diff --git a/lisp/eshell/em-ls.el b/lisp/eshell/em-ls.el
index 79799db30b..48f3874bf7 100644
--- a/lisp/eshell/em-ls.el
+++ b/lisp/eshell/em-ls.el
@@ -241,6 +241,8 @@ dired-flag
 
 ;;; Functions:
 
+(declare-function eshell-extended-glob "em-glob" (glob))
+
 (defun eshell-ls--insert-directory
   (orig-fun file switches &optional wildcard full-directory-p)
   "Insert directory listing for FILE, formatted according to SWITCHES.
@@ -273,11 +275,18 @@ eshell-ls--insert-directory
                 (set 'font-lock-buffers
                      (delq (current-buffer)
                            (symbol-value 'font-lock-buffers)))))
+          (require 'em-glob)
           (let ((insert-func 'insert)
                 (error-func 'insert)
                 (flush-func 'ignore)
+                (target ; Expand the shell wildcards if any.
+                 (if (and (atom file)
+                          (string-match "[[?*]" file)
+                          (not (file-exists-p file)))
+                     (mapcar #'file-relative-name (eshell-extended-glob file))
+                   (file-relative-name file)))
                 eshell-ls-dired-initial-args)
-            (eshell-do-ls (append switches (list file)))))))))
+            (eshell-do-ls (append switches (list target)))))))))
 
 (defsubst eshell/ls (&rest args)
   "An alias version of `eshell-do-ls'."
diff --git a/test/lisp/dired-tests.el b/test/lisp/dired-tests.el
index 601d65768b..16086b97a9 100644
--- a/test/lisp/dired-tests.el
+++ b/test/lisp/dired-tests.el
@@ -188,5 +188,24 @@
       (customize-set-variable 'eshell-ls-use-in-dired orig)
       (and (buffer-live-p buf) (kill-buffer)))))
 
+
+(ert-deftest dired-test-bug27844 ()
+  "Test for http://debbugs.gnu.org/27844 ."
+  (require 'em-ls)
+  (let ((orig eshell-ls-use-in-dired)
+        (dired-use-ls-dired 'unspecified)
+        buf insert-directory-program)
+    (unwind-protect
+        (progn
+          (customize-set-variable 'eshell-ls-use-in-dired t)
+          (setq buf (dired (expand-file-name "lisp/*.el" source-directory)))
+          (dired-toggle-marks)
+          (should (cdr (dired-get-marked-files)))
+          (kill-buffer buf)
+          (setq buf (dired (expand-file-name "lisp/subr.el" source-directory)))
+          (should (looking-at "subr\\.el")))
+      (customize-set-variable 'eshell-ls-use-in-dired orig)
+      (and (buffer-live-p buf) (kill-buffer)))))
+
 (provide 'dired-tests)
 ;; dired-tests.el ends here

--8<-----------------------------cut here---------------end--------------->8---

In GNU Emacs 26.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.22.11)
 of 2017-07-26
Repository revision: e1e8d2e229f48b3cee765f7cf27ae04ee4401d85