GNU bug report logs - #51959
28.0.50; [PATCH] Fallout from 69f1bc43c0

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: dick <dick.r.chiang <at> gmail.com>
To: bug-gnu-emacs <bug-gnu-emacs <at> gnu.org>
Subject: 28.0.50; [PATCH] Fallout from 69f1bc43c0
Date: Thu, 18 Nov 2021 18:35:41 -0500

[0001-Fallout-from-69f1bc43c0.patch (text/x-diff, inline)]

From f91206e6d6f56fa2ff6dc018d20f441159f80213 Mon Sep 17 00:00:00 2001
From: dickmao <dick.r.chiang <at> gmail.com>
Date: Thu, 18 Nov 2021 18:31:37 -0500
Subject: [PATCH] Fallout from 69f1bc43c0

* lisp/calendar/icalendar.el (icalendar--decode-isodatetime):
Accommodate TZ string in input.  Fragile.
* test/lisp/calendar/icalendar-tests.el
(icalendar-tests--decode-isodatetime):
Apparently, whoever wrote those tests lived in central Europe.
---
 lisp/calendar/icalendar.el            | 14 +++++------
 test/infra/gitlab-ci.yml              |  7 ++++++
 test/lisp/calendar/icalendar-tests.el | 34 +++++++++++++++------------
 3 files changed, 33 insertions(+), 22 deletions(-)

diff --git a/lisp/calendar/icalendar.el b/lisp/calendar/icalendar.el
index 2d31101e50..7a483d4062 100644
--- a/lisp/calendar/icalendar.el
+++ b/lisp/calendar/icalendar.el
@@ -644,13 +644,13 @@ icalendar--decode-isodatetime
           ;; seconds present
           (setq second (read (substring isodatetimestring 13 15))))
 	;; FIXME: Support subseconds.
-        (when (and (> (length isodatetimestring) 15)
-                   ;; UTC specifier present
-                   (char-equal ?Z (aref isodatetimestring 15)))
-          (setq source-zone t
-                ;; decode to local time unless result-zone is explicitly given,
-                ;; i.e. do not decode to UTC, i.e. do not (setq result-zone t)
-                ))
+        (when (> (length isodatetimestring) 15)
+          (cl-case (aref isodatetimestring 15)
+            (?Z
+             (setq source-zone t))
+            ((?- ?+)
+             (setq source-zone
+                   (concat "UTC" (substring isodatetimestring 15))))))
         ;; shift if necessary
         (if day-shift
             (let ((mdy (calendar-gregorian-from-absolute
diff --git a/test/infra/gitlab-ci.yml b/test/infra/gitlab-ci.yml
index 096a293b30..d8e012d6a9 100644
--- a/test/infra/gitlab-ci.yml
+++ b/test/infra/gitlab-ci.yml
@@ -241,6 +241,13 @@ test-lisp-inotify:
     target: emacs-inotify
     make_params: "-C test check-lisp"
 
+test-lisp-calendar-inotify:
+  stage: normal
+  extends: [.job-template, .test-template]
+  variables:
+    target: emacs-inotify
+    make_params: "-C test check-lisp-calendar"
+
 test-lisp-net-inotify:
   stage: normal
   extends: [.job-template, .test-template]
diff --git a/test/lisp/calendar/icalendar-tests.el b/test/lisp/calendar/icalendar-tests.el
index 10b684aacb..1551922028 100644
--- a/test/lisp/calendar/icalendar-tests.el
+++ b/test/lisp/calendar/icalendar-tests.el
@@ -1635,26 +1635,30 @@ icalendar-test--format
 
 (ert-deftest icalendar-tests--decode-isodatetime ()
   "Test `icalendar--decode-isodatetime'."
-  (should (equal (icalendar-test--format "20040917T050910-0200")
-                 "2004-09-17T03:09:10+0000"))
-  (should (equal (icalendar-test--format "20040917T050910")
+  (should (equal (icalendar-test--format "20040917T050910-02:00")
                  "2004-09-17T03:09:10+0000"))
+  (let ((orig (icalendar-test--format "20040917T050910")))
+    (unwind-protect
+        (progn
+          (set-time-zone-rule "UTC-02:00")
+          (should (equal (icalendar-test--format "20040917T050910")
+                         "2004-09-17T03:09:10+0000"))
+          (should (equal (icalendar-test--format "20040917T0509")
+                         "2004-09-17T03:09:00+0000"))
+          (should (equal (icalendar-test--format "20040917")
+                         "2004-09-16T22:00:00+0000"))
+          (should (equal (icalendar-test--format "20040917T050910" 1)
+                         "2004-09-18T03:09:10+0000"))
+          (should (equal (icalendar-test--format "20040917T050910" 30)
+                         "2004-10-17T03:09:10+0000")))
+      (set-time-zone-rule 'wall) ;; (set-time-zone-rule nil) is broken
+      (should (equal orig (icalendar-test--format "20040917T050910")))))
   (should (equal (icalendar-test--format "20040917T050910Z")
                  "2004-09-17T05:09:10+0000"))
-  (should (equal (icalendar-test--format "20040917T0509")
-                 "2004-09-17T03:09:00+0000"))
-  (should (equal (icalendar-test--format "20040917")
-                 "2004-09-16T22:00:00+0000"))
-  (should (equal (icalendar-test--format "20040917T050910" 1)
-                 "2004-09-18T03:09:10+0000"))
-  (should (equal (icalendar-test--format "20040917T050910" 30)
-                 "2004-10-17T03:09:10+0000"))
-  (should (equal (icalendar-test--format "20040917T050910" -1)
-                 "2004-09-16T03:09:10+0000"))
-
+  (should (equal (icalendar-test--format "20040917T050910" -1 0)
+                 "2004-09-16T05:09:10+0000"))
   (should (equal (icalendar-test--format "20040917T050910" nil -3600)
                  "2004-09-17T06:09:10+0000")))
 
-
 (provide 'icalendar-tests)
 ;;; icalendar-tests.el ends here
-- 
2.26.2

[Message part 2 (text/plain, inline)]

In Commercial Emacs 28.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.22.30, cairo version 1.15.10)
 of 2021-11-18 built on dick
Repository revision: 857bfcf67d29742fc4e48b54a124564692434bd2
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.11906000
System Description: Ubuntu 18.04.4 LTS

Configured using:
 'configure --prefix=/home/dick/.local --with-tree-sitter
 --enable-dumping-overwrite 'CFLAGS=-g3 -O2 -I/home/dick/.local/include/'
 LDFLAGS=-L/home/dick/.local/lib'

Configured features:
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TREE-SITTER LCMS2 LIBSELINUX LIBXML2 MODULES NOTIFY INOTIFY PDUMPER PNG RSVG
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Major mode: Ag

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/home/dick/.emacs.d/elpa/hierarchy-20171221.1151/hierarchy hides /home/dick/.local/share/emacs/28.0.50/lisp/emacs-lisp/hierarchy

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Memory information:
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