git-commit-vandalism/t/helper/test-date.c
Johannes Schindelin dddbad728c timestamp_t: a new data type for timestamps
Git's source code assumes that unsigned long is at least as precise as
time_t. Which is incorrect, and causes a lot of problems, in particular
where unsigned long is only 32-bit (notably on Windows, even in 64-bit
versions).

So let's just use a more appropriate data type instead. In preparation
for this, we introduce the new `timestamp_t` data type.

By necessity, this is a very, very large patch, as it has to replace all
timestamps' data type in one go.

As we will use a data type that is not necessarily identical to `time_t`,
we need to be very careful to use `time_t` whenever we interact with the
system functions, and `timestamp_t` everywhere else.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-27 13:07:39 +09:00

106 lines
2.3 KiB
C

#include "cache.h"
static const char *usage_msg = "\n"
" test-date relative [time_t]...\n"
" test-date show:<format> [time_t]...\n"
" test-date parse [date]...\n"
" test-date approxidate [date]...\n"
" test-date is64bit\n"
" test-date time_t-is64bit\n";
static void show_relative_dates(const char **argv, struct timeval *now)
{
struct strbuf buf = STRBUF_INIT;
for (; *argv; argv++) {
time_t t = atoi(*argv);
show_date_relative(t, 0, now, &buf);
printf("%s -> %s\n", *argv, buf.buf);
}
strbuf_release(&buf);
}
static void show_dates(const char **argv, const char *format)
{
struct date_mode mode;
parse_date_format(format, &mode);
for (; *argv; argv++) {
char *arg;
timestamp_t t;
int tz;
/*
* Do not use our normal timestamp parsing here, as the point
* is to test the formatting code in isolation.
*/
t = parse_timestamp(*argv, &arg, 10);
while (*arg == ' ')
arg++;
tz = atoi(arg);
printf("%s -> %s\n", *argv, show_date(t, tz, &mode));
}
}
static void parse_dates(const char **argv, struct timeval *now)
{
struct strbuf result = STRBUF_INIT;
for (; *argv; argv++) {
timestamp_t t;
int tz;
strbuf_reset(&result);
parse_date(*argv, &result);
if (sscanf(result.buf, "%"PRItime" %d", &t, &tz) == 2)
printf("%s -> %s\n",
*argv, show_date(t, tz, DATE_MODE(ISO8601)));
else
printf("%s -> bad\n", *argv);
}
strbuf_release(&result);
}
static void parse_approxidate(const char **argv, struct timeval *now)
{
for (; *argv; argv++) {
timestamp_t t;
t = approxidate_relative(*argv, now);
printf("%s -> %s\n", *argv, show_date(t, 0, DATE_MODE(ISO8601)));
}
}
int cmd_main(int argc, const char **argv)
{
struct timeval now;
const char *x;
x = getenv("TEST_DATE_NOW");
if (x) {
now.tv_sec = atoi(x);
now.tv_usec = 0;
}
else
gettimeofday(&now, NULL);
argv++;
if (!*argv)
usage(usage_msg);
if (!strcmp(*argv, "relative"))
show_relative_dates(argv+1, &now);
else if (skip_prefix(*argv, "show:", &x))
show_dates(argv+1, x);
else if (!strcmp(*argv, "parse"))
parse_dates(argv+1, &now);
else if (!strcmp(*argv, "approxidate"))
parse_approxidate(argv+1, &now);
else if (!strcmp(*argv, "is64bit"))
return sizeof(timestamp_t) == 8 ? 0 : 1;
else if (!strcmp(*argv, "time_t-is64bit"))
return sizeof(time_t) == 8 ? 0 : 1;
else
usage(usage_msg);
return 0;
}