From 9cb480f2ad653d834fe5e4ba7a8a25f74ad1d89b Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Sat, 25 Jun 2005 02:21:16 -0700 Subject: [PATCH] [PATCH] fix date parsing for GIT raw commit timestamp format. Usually all of the match_xxx routines in date.c fill tm structure assuming that the parsed string talks about local time, and parse_date routine compensates for it by adjusting the value with tz offset parsed out separately. However, this logic does not work well when we feed GIT raw commit timestamp to it, because what match_digits gets is already in GMT. A good testcase is: $ make test-date $ ./test-date 'Fri Jun 24 16:55:27 2005 -0700' '1119657327 -0700' These two timestamps represent the same time, but the second one without the fix this commit introduces gives you 7 hours off. Signed-off-by: Junio C Hamano Signed-off-by: Linus Torvalds --- date.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/date.c b/date.c index ff922fe4f..8ec6d0b86 100644 --- a/date.c +++ b/date.c @@ -270,7 +270,7 @@ static int match_multi_number(unsigned long num, char c, char *date, char *end, /* * We've seen a digit. Time? Year? Date? */ -static int match_digit(char *date, struct tm *tm, int *offset) +static int match_digit(char *date, struct tm *tm, int *offset, int *tm_gmt) { int n; char *end; @@ -283,8 +283,10 @@ static int match_digit(char *date, struct tm *tm, int *offset) */ if (num > 946684800) { time_t time = num; - if (gmtime_r(&time, tm)) + if (gmtime_r(&time, tm)) { + *tm_gmt = 1; return end - date; + } } /* @@ -389,7 +391,7 @@ static int match_tz(char *date, int *offp) void parse_date(char *date, char *result, int maxlen) { struct tm tm; - int offset, sign; + int offset, sign, tm_gmt; time_t then; memset(&tm, 0, sizeof(tm)); @@ -398,6 +400,7 @@ void parse_date(char *date, char *result, int maxlen) tm.tm_mday = -1; tm.tm_isdst = -1; offset = -1; + tm_gmt = 0; for (;;) { int match = 0; @@ -410,7 +413,7 @@ void parse_date(char *date, char *result, int maxlen) if (isalpha(c)) match = match_alpha(date, &tm, &offset); else if (isdigit(c)) - match = match_digit(date, &tm, &offset); + match = match_digit(date, &tm, &offset, &tm_gmt); else if ((c == '-' || c == '+') && isdigit(date[1])) match = match_tz(date, &offset); @@ -430,7 +433,8 @@ void parse_date(char *date, char *result, int maxlen) if (then == -1) return; - then -= offset * 60; + if (!tm_gmt) + then -= offset * 60; sign = '+'; if (offset < 0) { -- 2.26.2