[PATCH] Allow commit date before Unix epoch

Florent Gallaire fgallaire at gmail.com
Tue Mar 29 00:55:52 UTC 2016


# HG changeset patch
# User Florent Gallaire <fgallaire at gmail.com>
# Date 1459212616 -7200
#      Tue Mar 29 02:50:16 2016 +0200
# Node ID ece34634e504271cf2a1dc696a2a0486a8b13488
# Parent  0e330d7d9f53fc37cbeee8d1389a06465eca2241
date: allow negative timestamp

DCVS are very useful to store various texts (as legislation) written before
Unix epoch. Fri, 13 Dec 1901 is a nice gain over Thu, 01 Jan 1970.

diff -r 0e330d7d9f53 -r ece34634e504 mercurial/util.py
--- a/mercurial/util.py    Mon Mar 28 17:16:00 2016 -0500
+++ b/mercurial/util.py    Tue Mar 29 02:50:16 2016 +0200
@@ -1578,9 +1578,6 @@
     number of seconds away from UTC. if timezone is false, do not
     append time zone to string."""
     t, tz = date or makedate()
-    if t < 0:
-        t = 0   # time.gmtime(lt) fails on Windows for lt < -43200
-        tz = 0
     if "%1" in format or "%2" in format or "%z" in format:
         sign = (tz > 0) and "-" or "+"
         minutes = abs(tz) // 60
@@ -1714,8 +1711,6 @@
     # to UTC+14
     if abs(when) > 0x7fffffff:
         raise Abort(_('date exceeds 32 bits: %d') % when)
-    if when < 0:
-        raise Abort(_('negative date value: %d') % when)
     if offset < -50400 or offset > 43200:
         raise Abort(_('impossible time zone offset: %d') % offset)
     return when, offset
diff -r 0e330d7d9f53 -r ece34634e504 tests/test-commit.t
--- a/tests/test-commit.t    Mon Mar 28 17:16:00 2016 -0500
+++ b/tests/test-commit.t    Tue Mar 29 02:50:16 2016 +0200
@@ -27,8 +27,8 @@
   $ hg commit -d '111111111111 0' -m commit-7
   abort: date exceeds 32 bits: 111111111111
   [255]
-  $ hg commit -d '-7654321 3600' -m commit-7
-  abort: negative date value: -7654321
+  $ hg commit -d '-111111111111 3600' -m commit-7
+  abort: date exceeds 32 bits: -111111111111
   [255]

 commit added file that has been deleted


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