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Accept dates before 2000/01/01 when specified as seconds since the epoch

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Tests with git-filter-branch on a repository that was converted from
CVS and that has commits reaching back to 1999 revealed that it is
necessary to parse dates before 2000/01/01 when they are specified
as seconds since 1970/01/01. There is now still a limit, 100000000,
which is 1973/03/03 09:46:40 UTC, in order to allow that dates are
represented as 8 digits.

Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Sixt 2007-06-06 10:11:55 +02:00 committed by Junio C Hamano
parent 41cf68a85c
commit a1a5a6347b
1 changed files with 4 additions and 2 deletions
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6
date.c
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@ -414,9 +414,11 @@ static int match_digit(const char *date, struct tm *tm, int *offset, int *tm_gmt
num = strtoul(date, &end, 10);
/*
* Seconds since 1970? We trigger on that for anything after Jan 1, 2000
* Seconds since 1970? We trigger on that for any numbers with
* more than 8 digits. This is because we don't want to rule out
* numbers like 20070606 as a YYYYMMDD date.
*/
if (num > 946684800) {
if (num >= 100000000) {
time_t time = num;
if (gmtime_r(&time, tm)) {
*tm_gmt = 1;