From: Stefan Kangas <stefankangas@gmail.com>
Date: Sat, 5 Aug 2023 10:54:26 +0000 (+0200)
Subject: Fix eshell "ls" command for files larger than 1TiB
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=3b2b0b5f921fd49ef0ac21e1522b0e037b80dffa;p=emacs.git

Fix eshell "ls" command for files larger than 1TiB

* lisp/eshell/esh-util.el (eshell-printable-size): Fix displaying file
sizes larger than 1 TiB or 1 TB.
* test/lisp/eshell/esh-util-tests.el
(esh-util-test/eshell-printable-size)
(esh-util-test/eshell-printable-size/zero)
(esh-util-test/eshell-printable-size/terabyte)
(esh-util-test/eshell-printable-size/use-colors)
(esh-util-test/eshell-printable-size/block-size)
(esh-util-test/eshell-printable-size/human-readable-arg): New tests.
---

diff --git a/lisp/eshell/esh-util.el b/lisp/eshell/esh-util.el
index 1d0f41d7b82..82b0d9fc623 100644
--- a/lisp/eshell/esh-util.el
+++ b/lisp/eshell/esh-util.el
@@ -433,6 +433,10 @@ Prepend remote identification of `default-directory', if any."
 (defun eshell-printable-size (filesize &optional human-readable
 				       block-size use-colors)
   "Return a printable FILESIZE."
+  (when (and human-readable
+             (not (= human-readable 1000))
+             (not (= human-readable 1024)))
+    (error "human-readable must be 1000 or 1024"))
   (let ((size (float (or filesize 0))))
     (if human-readable
 	(if (< size human-readable)
@@ -463,7 +467,9 @@ Prepend remote identification of `default-directory', if any."
 		    (if use-colors
 			(put-text-property 0 (length str)
 					   'face 'bold-italic str))
-		    str)))))
+                    str)
+                (let ((flavor (and (= human-readable 1000) 'si)))
+                  (file-size-human-readable filesize flavor))))))
       (if block-size
 	  (setq size (/ size block-size)))
       (format "%.0f" size))))
diff --git a/test/lisp/eshell/esh-util-tests.el b/test/lisp/eshell/esh-util-tests.el
index 8585677e14e..fe4eb9f31dd 100644
--- a/test/lisp/eshell/esh-util-tests.el
+++ b/test/lisp/eshell/esh-util-tests.el
@@ -125,4 +125,35 @@
     (should (equal (eshell-convert-to-number "123") "123"))
     (should (equal (eshell-convert-to-number "1.23") "1.23"))))
 
+(ert-deftest esh-util-test/eshell-printable-size ()
+  (should (equal (eshell-printable-size (expt 2 16)) "65536"))
+  (should (equal (eshell-printable-size (expt 2 32)) "4294967296")))
+
+(ert-deftest esh-util-test/eshell-printable-size/zero ()
+  (should (equal (eshell-printable-size 0 1000 nil t) "0")))
+
+(ert-deftest esh-util-test/eshell-printable-size/terabyte ()
+  (should (equal (eshell-printable-size (1- (expt 2 40)) 1024 nil t) "1024G"))
+  (should (equal (eshell-printable-size (expt 2 40) 1024 nil t) "1T"))
+  (should (equal (eshell-printable-size (1- (expt 10 12)) 1000 nil t) "1000G"))
+  (should (equal (eshell-printable-size (expt 10 12) 1000 nil t) "1T")))
+
+(ert-deftest esh-util-test/eshell-printable-size/use-colors ()
+  (should (equal-including-properties
+           (eshell-printable-size (1- (expt 2 20)) 1024 nil t)
+           "1024k"))
+  (should (equal-including-properties
+           (eshell-printable-size (1- (expt 2 30)) 1024 nil t)
+           (propertize "1024M" 'face 'bold)))
+  (should (equal-including-properties
+           (eshell-printable-size (1- (expt 2 40)) 1024 nil t)
+           (propertize "1024G" 'face 'bold-italic))))
+
+(ert-deftest esh-util-test/eshell-printable-size/block-size ()
+  (should (equal (eshell-printable-size (1- (expt 2 20)) nil 4096) "256"))
+  (should (equal (eshell-printable-size (1- (expt 2 30)) nil 4096) "262144")))
+
+(ert-deftest esh-util-test/eshell-printable-size/human-readable-arg ()
+  (should-error (eshell-printable-size 0 999 nil t)))
+
 ;;; esh-util-tests.el ends here