emacs-30 b7a375f5c49: Fix error when splicing Eshell globs and a glob expands to itself

[Jim Porter]

branch: emacs-30
commit b7a375f5c49ac86399b9af7a6a74720ed294abd7
Author: Jim Porter <jporterbugs@gmail.com>
Commit: Jim Porter <jporterbugs@gmail.com>

    Fix error when splicing Eshell globs and a glob expands to itself
    
    This could happen when 'eshell-extended-glob' determines that a "glob"
    is not really a glob.  This mainly happens for remote file names with a
    "~" in them, like "/ssh:remote:~/file.txt".
    
    * lisp/eshell/em-glob.el (eshell-extended-glob): Return a list when
    'eshell-glob-splice-results' is non-nil.
    * test/lisp/eshell/em-glob-tests.el
    (em-glob-test/expand/splice-results)
    em-glob-test/expand/no-splice-results): Extend tests.
---
 lisp/eshell/em-glob.el            |  2 +-
 test/lisp/eshell/em-glob-tests.el | 16 +++++++++++++---
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/lisp/eshell/em-glob.el b/lisp/eshell/em-glob.el
index 36e4f90aed2..2aceaf188f3 100644
--- a/lisp/eshell/em-glob.el
+++ b/lisp/eshell/em-glob.el
@@ -348,7 +348,7 @@ regular expressions, and these cannot support the above 
constructs."
         ;; always be sure if the "~" is a home directory reference or
         ;; part of a glob (e.g. if the argument was assembled from
         ;; variables).
-        glob
+        (if eshell-glob-splice-results (list glob) glob)
       (unwind-protect
           (apply #'eshell-glob-entries globs)
         (if message-shown
diff --git a/test/lisp/eshell/em-glob-tests.el 
b/test/lisp/eshell/em-glob-tests.el
index 2efb3a9df69..88e9cc73bbd 100644
--- a/test/lisp/eshell/em-glob-tests.el
+++ b/test/lisp/eshell/em-glob-tests.el
@@ -74,7 +74,13 @@ component ending in \"symlink\" is treated as a symbolic 
link."
       ;; Ensure the default expansion splices the glob.
       (eshell-command-result-equal "funcall list *.el" '("a.el" "b.el"))
       (eshell-command-result-equal "funcall list *.txt" '("c.txt"))
-      (eshell-command-result-equal "funcall list *.no" '("*.no")))))
+      ;; When spliting, no-matches cases also return a list containing
+      ;; the original non-matching glob.
+      (eshell-command-result-equal "funcall list *.no" '("*.no"))
+      (when (eshell-tests-remote-accessible-p)
+        (let ((remote (file-remote-p ert-remote-temporary-file-directory)))
+          (eshell-command-result-equal (format "funcall list %s~/a.el" remote)
+                                       `(,(format "%s~/a.el" remote))))))))
 
 (ert-deftest em-glob-test/expand/no-splice-results ()
   "Test that globs are treated as lists when
@@ -85,9 +91,13 @@ component ending in \"symlink\" is treated as a symbolic 
link."
       ;; Ensure the default expansion splices the glob.
       (eshell-command-result-equal "funcall list *.el" '(("a.el" "b.el")))
       (eshell-command-result-equal "funcall list *.txt" '(("c.txt")))
-      ;; The no-matches case is special here: the glob is just the
+      ;; The no-matches cases are special here: the glob is just the
       ;; string, not the list of results.
-      (eshell-command-result-equal "funcall list *.no" '("*.no")))))
+      (eshell-command-result-equal "funcall list *.no" '("*.no"))
+      (when (eshell-tests-remote-accessible-p)
+        (let ((remote (file-remote-p ert-remote-temporary-file-directory)))
+          (eshell-command-result-equal (format "funcall list %s~/a.el" remote)
+                                       `(,(format "%s~/a.el" remote))))))))
 
 (ert-deftest em-glob-test/expand/explicitly-splice-results ()
   "Test explicitly splicing globs works the same no matter the