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Commit b9ebcc59 by Vicent Martí
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Merge pull request #684 from benstraub/rev-parse 

Rev parse
parents cddb8efe 327dc61f
Showing with 1978 additions and 20 deletions
AUTHORS
......@@ -6,6 +6,7 @@ Alexei Sholik
Andreas Ericsson
Ankur Sethi
Ben Noordhuis
Ben Straub
Benjamin C Meyer
Brian Lopez
Carlos Martín Nieto
......
include/git2.h
......@@ -25,6 +25,7 @@
#include "git2/merge.h"
#include "git2/refs.h"
#include "git2/reflog.h"
#include "git2/revparse.h"
#include "git2/object.h"
#include "git2/blob.h"
......
include/git2/revparse.h 0 → 100644
/*
* Copyright (C) 2012 the libgit2 contributors
*
* This file is part of libgit2, distributed under the GNU GPL v2 with
* a Linking Exception. For full terms see the included COPYING file.
*/
#ifndef INCLUDE_git_revparse_h__
#define INCLUDE_git_revparse_h__
#include "common.h"
#include "types.h"
/**
* @file git2/revparse.h
* @brief Git revision parsing routines
* @defgroup git_revparse Git revision parsing routines
* @ingroup Git
* @{
*/
GIT_BEGIN_DECL
/**
* Find an object, as specified by a revision string. See `man gitrevisions`, or the documentation
* for `git rev-parse` for information on the syntax accepted.
*
* @param out pointer to output object
* @param repo the repository to search in
* @param spec the textual specification for an object
* @return on success, GIT_ERROR otherwise (use git_error_last for information about the error)
*/
GIT_EXTERN(int) git_revparse_single(git_object **out, git_repository *repo, const char *spec);
/** @} */
GIT_END_DECL
#endif
src/date.c 0 → 100644
/*
* GIT - The information manager from hell
*
* Copyright (C) Linus Torvalds, 2005
*/
#include "common.h"
#ifndef GIT_WIN32
#include <sys/time.h>
#endif
#include "util.h"
#include "cache.h"
#include "posix.h"
#include <ctype.h>
#include <time.h>
typedef enum {
DATE_NORMAL = 0,
DATE_RELATIVE,
DATE_SHORT,
DATE_LOCAL,
DATE_ISO8601,
DATE_RFC2822,
DATE_RAW
} date_mode;
/*
* This is like mktime, but without normalization of tm_wday and tm_yday.
*/
static git_time_t tm_to_time_t(const struct tm *tm)
{
static const int mdays[] = {
0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
};
int year = tm->tm_year - 70;
int month = tm->tm_mon;
int day = tm->tm_mday;
if (year < 0 || year > 129) /* algo only works for 1970-2099 */
return -1;
if (month < 0 || month > 11) /* array bounds */
return -1;
if (month < 2 || (year + 2) % 4)
day--;
if (tm->tm_hour < 0 || tm->tm_min < 0 || tm->tm_sec < 0)
return -1;
return (year * 365 + (year + 1) / 4 + mdays[month] + day) * 24*60*60UL +
tm->tm_hour * 60*60 + tm->tm_min * 60 + tm->tm_sec;
}
static const char *month_names[] = {
"January", "February", "March", "April", "May", "June",
"July", "August", "September", "October", "November", "December"
};
static const char *weekday_names[] = {
"Sundays", "Mondays", "Tuesdays", "Wednesdays", "Thursdays", "Fridays", "Saturdays"
};
/*
* Check these. And note how it doesn't do the summer-time conversion.
*
* In my world, it's always summer, and things are probably a bit off
* in other ways too.
*/
static const struct {
const char *name;
int offset;
int dst;
} timezone_names[] = {
{ "IDLW", -12, 0, }, /* International Date Line West */
{ "NT", -11, 0, }, /* Nome */
{ "CAT", -10, 0, }, /* Central Alaska */
{ "HST", -10, 0, }, /* Hawaii Standard */
{ "HDT", -10, 1, }, /* Hawaii Daylight */
{ "YST", -9, 0, }, /* Yukon Standard */
{ "YDT", -9, 1, }, /* Yukon Daylight */
{ "PST", -8, 0, }, /* Pacific Standard */
{ "PDT", -8, 1, }, /* Pacific Daylight */
{ "MST", -7, 0, }, /* Mountain Standard */
{ "MDT", -7, 1, }, /* Mountain Daylight */
{ "CST", -6, 0, }, /* Central Standard */
{ "CDT", -6, 1, }, /* Central Daylight */
{ "EST", -5, 0, }, /* Eastern Standard */
{ "EDT", -5, 1, }, /* Eastern Daylight */
{ "AST", -3, 0, }, /* Atlantic Standard */
{ "ADT", -3, 1, }, /* Atlantic Daylight */
{ "WAT", -1, 0, }, /* West Africa */
{ "GMT", 0, 0, }, /* Greenwich Mean */
{ "UTC", 0, 0, }, /* Universal (Coordinated) */
{ "Z", 0, 0, }, /* Zulu, alias for UTC */
{ "WET", 0, 0, }, /* Western European */
{ "BST", 0, 1, }, /* British Summer */
{ "CET", +1, 0, }, /* Central European */
{ "MET", +1, 0, }, /* Middle European */
{ "MEWT", +1, 0, }, /* Middle European Winter */
{ "MEST", +1, 1, }, /* Middle European Summer */
{ "CEST", +1, 1, }, /* Central European Summer */
{ "MESZ", +1, 1, }, /* Middle European Summer */
{ "FWT", +1, 0, }, /* French Winter */
{ "FST", +1, 1, }, /* French Summer */
{ "EET", +2, 0, }, /* Eastern Europe, USSR Zone 1 */
{ "EEST", +2, 1, }, /* Eastern European Daylight */
{ "WAST", +7, 0, }, /* West Australian Standard */
{ "WADT", +7, 1, }, /* West Australian Daylight */
{ "CCT", +8, 0, }, /* China Coast, USSR Zone 7 */
{ "JST", +9, 0, }, /* Japan Standard, USSR Zone 8 */
{ "EAST", +10, 0, }, /* Eastern Australian Standard */
{ "EADT", +10, 1, }, /* Eastern Australian Daylight */
{ "GST", +10, 0, }, /* Guam Standard, USSR Zone 9 */
{ "NZT", +12, 0, }, /* New Zealand */
{ "NZST", +12, 0, }, /* New Zealand Standard */
{ "NZDT", +12, 1, }, /* New Zealand Daylight */
{ "IDLE", +12, 0, }, /* International Date Line East */
};
static int match_string(const char *date, const char *str)
{
int i = 0;
for (i = 0; *date; date++, str++, i++) {
if (*date == *str)
continue;
if (toupper(*date) == toupper(*str))
continue;
if (!isalnum(*date))
break;
return 0;
}
return i;
}
static int skip_alpha(const char *date)
{
int i = 0;
do {
i++;
} while (isalpha(date[i]));
return i;
}
/*
* Parse month, weekday, or timezone name
*/
static int match_alpha(const char *date, struct tm *tm, int *offset)
{
unsigned int i;
for (i = 0; i < 12; i++) {
int match = match_string(date, month_names[i]);
if (match >= 3) {
tm->tm_mon = i;
return match;
}
}
for (i = 0; i < 7; i++) {
int match = match_string(date, weekday_names[i]);
if (match >= 3) {
tm->tm_wday = i;
return match;
}
}
for (i = 0; i < ARRAY_SIZE(timezone_names); i++) {
int match = match_string(date, timezone_names[i].name);
if (match >= 3 || match == (int)strlen(timezone_names[i].name)) {
int off = timezone_names[i].offset;
/* This is bogus, but we like summer */
off += timezone_names[i].dst;
/* Only use the tz name offset if we don't have anything better */
if (*offset == -1)
*offset = 60*off;
return match;
}
}
if (match_string(date, "PM") == 2) {
tm->tm_hour = (tm->tm_hour % 12) + 12;
return 2;
}
if (match_string(date, "AM") == 2) {
tm->tm_hour = (tm->tm_hour % 12) + 0;
return 2;
}
/* BAD CRAP */
return skip_alpha(date);
}
static int is_date(int year, int month, int day, struct tm *now_tm, time_t now, struct tm *tm)
{
if (month > 0 && month < 13 && day > 0 && day < 32) {
struct tm check = *tm;
struct tm *r = (now_tm ? &check : tm);
time_t specified;
r->tm_mon = month - 1;
r->tm_mday = day;
if (year == -1) {
if (!now_tm)
return 1;
r->tm_year = now_tm->tm_year;
}
else if (year >= 1970 && year < 2100)
r->tm_year = year - 1900;
else if (year > 70 && year < 100)
r->tm_year = year;
else if (year < 38)
r->tm_year = year + 100;
else
return 0;
if (!now_tm)
return 1;
specified = tm_to_time_t(r);
/* Be it commit time or author time, it does not make
* sense to specify timestamp way into the future. Make
* sure it is not later than ten days from now...
*/
if (now + 10*24*3600 < specified)
return 0;
tm->tm_mon = r->tm_mon;
tm->tm_mday = r->tm_mday;
if (year != -1)
tm->tm_year = r->tm_year;
return 1;
}
return 0;
}
static int match_multi_number(unsigned long num, char c, const char *date, char *end, struct tm *tm)
{
time_t now;
struct tm now_tm;
struct tm *refuse_future;
long num2, num3;
num2 = strtol(end+1, &end, 10);
num3 = -1;
if (*end == c && isdigit(end[1]))
num3 = strtol(end+1, &end, 10);
/* Time? Date? */
switch (c) {
case ':':
if (num3 < 0)
num3 = 0;
if (num < 25 && num2 >= 0 && num2 < 60 && num3 >= 0 && num3 <= 60) {
tm->tm_hour = num;
tm->tm_min = num2;
tm->tm_sec = num3;
break;
}
return 0;
case '-':
case '/':
case '.':
now = time(NULL);
refuse_future = NULL;
if (p_gmtime_r(&now, &now_tm))
refuse_future = &now_tm;
if (num > 70) {
/* yyyy-mm-dd? */
if (is_date(num, num2, num3, refuse_future, now, tm))
break;
/* yyyy-dd-mm? */
if (is_date(num, num3, num2, refuse_future, now, tm))
break;
}
/* Our eastern European friends say dd.mm.yy[yy]
* is the norm there, so giving precedence to
* mm/dd/yy[yy] form only when separator is not '.'
*/
if (c != '.' &&
is_date(num3, num, num2, refuse_future, now, tm))
break;
/* European dd.mm.yy[yy] or funny US dd/mm/yy[yy] */
if (is_date(num3, num2, num, refuse_future, now, tm))
break;
/* Funny European mm.dd.yy */
if (c == '.' &&
is_date(num3, num, num2, refuse_future, now, tm))
break;
return 0;
}
return end - date;
}
/*
* Have we filled in any part of the time/date yet?
* We just do a binary 'and' to see if the sign bit
* is set in all the values.
*/
static int nodate(struct tm *tm)
{
return (tm->tm_year &
tm->tm_mon &
tm->tm_mday &
tm->tm_hour &
tm->tm_min &
tm->tm_sec) < 0;
}
/*
* We've seen a digit. Time? Year? Date?
*/
static int match_digit(const char *date, struct tm *tm, int *offset, int *tm_gmt)
{
int n;
char *end;
unsigned long num;
num = strtoul(date, &end, 10);
/*
* 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 >= 100000000 && nodate(tm)) {
time_t time = num;
if (p_gmtime_r(&time, tm)) {
*tm_gmt = 1;
return end - date;
}
}
/*
* Check for special formats: num[-.:/]num[same]num
*/
switch (*end) {
case ':':
case '.':
case '/':
case '-':
if (isdigit(end[1])) {
int match = match_multi_number(num, *end, date, end, tm);
if (match)
return match;
}
}
/*
* None of the special formats? Try to guess what
* the number meant. We use the number of digits
* to make a more educated guess..
*/
n = 0;
do {
n++;
} while (isdigit(date[n]));
/* Four-digit year or a timezone? */
if (n == 4) {
if (num <= 1400 && *offset == -1) {
unsigned int minutes = num % 100;
unsigned int hours = num / 100;
*offset = hours*60 + minutes;
} else if (num > 1900 && num < 2100)
tm->tm_year = num - 1900;
return n;
}
/*
* Ignore lots of numerals. We took care of 4-digit years above.
* Days or months must be one or two digits.
*/
if (n > 2)
return n;
/*
* NOTE! We will give precedence to day-of-month over month or
* year numbers in the 1-12 range. So 05 is always "mday 5",
* unless we already have a mday..
*
* IOW, 01 Apr 05 parses as "April 1st, 2005".
*/
if (num > 0 && num < 32 && tm->tm_mday < 0) {
tm->tm_mday = num;
return n;
}
/* Two-digit year? */
if (n == 2 && tm->tm_year < 0) {
if (num < 10 && tm->tm_mday >= 0) {
tm->tm_year = num + 100;
return n;
}
if (num >= 70) {
tm->tm_year = num;
return n;
}
}
if (num > 0 && num < 13 && tm->tm_mon < 0)
tm->tm_mon = num-1;
return n;
}
static int match_tz(const char *date, int *offp)
{
char *end;
int hour = strtoul(date + 1, &end, 10);
int n = end - (date + 1);
int min = 0;
if (n == 4) {
/* hhmm */
min = hour % 100;
hour = hour / 100;
} else if (n != 2) {
min = 99; /* random crap */
} else if (*end == ':') {
/* hh:mm? */
min = strtoul(end + 1, &end, 10);
if (end - (date + 1) != 5)
min = 99; /* random crap */
} /* otherwise we parsed "hh" */
/*
* Don't accept any random crap. Even though some places have
* offset larger than 12 hours (e.g. Pacific/Kiritimati is at
* UTC+14), there is something wrong if hour part is much
* larger than that. We might also want to check that the
* minutes are divisible by 15 or something too. (Offset of
* Kathmandu, Nepal is UTC+5:45)
*/
if (min < 60 && hour < 24) {
int offset = hour * 60 + min;
if (*date == '-')
offset = -offset;
*offp = offset;
}
return end - date;
}
/*
* Parse a string like "0 +0000" as ancient timestamp near epoch, but
* only when it appears not as part of any other string.
*/
static int match_object_header_date(const char *date, git_time_t *timestamp, int *offset)
{
char *end;
unsigned long stamp;
int ofs;
if (*date < '0' || '9' <= *date)
return -1;
stamp = strtoul(date, &end, 10);
if (*end != ' ' || stamp == ULONG_MAX || (end[1] != '+' && end[1] != '-'))
return -1;
date = end + 2;
ofs = strtol(date, &end, 10);
if ((*end != '\0' && (*end != '\n')) || end != date + 4)
return -1;
ofs = (ofs / 100) * 60 + (ofs % 100);
if (date[-1] == '-')
ofs = -ofs;
*timestamp = stamp;
*offset = ofs;
return 0;
}
/* Gr. strptime is crap for this; it doesn't have a way to require RFC2822
(i.e. English) day/month names, and it doesn't work correctly with %z. */
static int parse_date_basic(const char *date, git_time_t *timestamp, int *offset)
{
struct tm tm;
int tm_gmt;
git_time_t dummy_timestamp;
int dummy_offset;
if (!timestamp)
timestamp = &dummy_timestamp;
if (!offset)
offset = &dummy_offset;
memset(&tm, 0, sizeof(tm));
tm.tm_year = -1;
tm.tm_mon = -1;
tm.tm_mday = -1;
tm.tm_isdst = -1;
tm.tm_hour = -1;
tm.tm_min = -1;
tm.tm_sec = -1;
*offset = -1;
tm_gmt = 0;
if (*date == '@' &&
!match_object_header_date(date + 1, timestamp, offset))
return 0; /* success */
for (;;) {
int match = 0;
unsigned char c = *date;
/* Stop at end of string or newline */
if (!c || c == '\n')
break;
if (isalpha(c))
match = match_alpha(date, &tm, offset);
else if (isdigit(c))
match = match_digit(date, &tm, offset, &tm_gmt);
else if ((c == '-' || c == '+') && isdigit(date[1]))
match = match_tz(date, offset);
if (!match) {
/* BAD CRAP */
match = 1;
}
date += match;
}
/* mktime uses local timezone */
*timestamp = tm_to_time_t(&tm);
if (*offset == -1)
*offset = ((time_t)*timestamp - mktime(&tm)) / 60;
if (*timestamp == (git_time_t)-1)
return -1;
if (!tm_gmt)
*timestamp -= *offset * 60;
return 0; /* success */
}
/*
* Relative time update (eg "2 days ago"). If we haven't set the time
* yet, we need to set it from current time.
*/
static git_time_t update_tm(struct tm *tm, struct tm *now, unsigned long sec)
{
time_t n;
if (tm->tm_mday < 0)
tm->tm_mday = now->tm_mday;
if (tm->tm_mon < 0)
tm->tm_mon = now->tm_mon;
if (tm->tm_year < 0) {
tm->tm_year = now->tm_year;
if (tm->tm_mon > now->tm_mon)
tm->tm_year--;
}
n = mktime(tm) - sec;
p_localtime_r(&n, tm);
return n;
}
static void date_now(struct tm *tm, struct tm *now, int *num)
{
GIT_UNUSED(num);
update_tm(tm, now, 0);
}
static void date_yesterday(struct tm *tm, struct tm *now, int *num)
{
GIT_UNUSED(num);
update_tm(tm, now, 24*60*60);
}
static void date_time(struct tm *tm, struct tm *now, int hour)
{
if (tm->tm_hour < hour)
date_yesterday(tm, now, NULL);
tm->tm_hour = hour;
tm->tm_min = 0;
tm->tm_sec = 0;
}
static void date_midnight(struct tm *tm, struct tm *now, int *num)
{
GIT_UNUSED(num);
date_time(tm, now, 0);
}
static void date_noon(struct tm *tm, struct tm *now, int *num)
{
GIT_UNUSED(num);
date_time(tm, now, 12);
}
static void date_tea(struct tm *tm, struct tm *now, int *num)
{
GIT_UNUSED(num);
date_time(tm, now, 17);
}
static void date_pm(struct tm *tm, struct tm *now, int *num)
{
int hour, n = *num;
*num = 0;
GIT_UNUSED(now);
hour = tm->tm_hour;
if (n) {
hour = n;
tm->tm_min = 0;
tm->tm_sec = 0;
}
tm->tm_hour = (hour % 12) + 12;
}
static void date_am(struct tm *tm, struct tm *now, int *num)
{
int hour, n = *num;
*num = 0;
GIT_UNUSED(now);
hour = tm->tm_hour;
if (n) {
hour = n;
tm->tm_min = 0;
tm->tm_sec = 0;
}
tm->tm_hour = (hour % 12);
}
static void date_never(struct tm *tm, struct tm *now, int *num)
{
time_t n = 0;
GIT_UNUSED(now);
GIT_UNUSED(num);
p_localtime_r(&n, tm);
}
static const struct special {
const char *name;
void (*fn)(struct tm *, struct tm *, int *);
} special[] = {
{ "yesterday", date_yesterday },
{ "noon", date_noon },
{ "midnight", date_midnight },
{ "tea", date_tea },
{ "PM", date_pm },
{ "AM", date_am },
{ "never", date_never },
{ "now", date_now },
{ NULL }
};
static const char *number_name[] = {
"zero", "one", "two", "three", "four",
"five", "six", "seven", "eight", "nine", "ten",
};
static const struct typelen {
const char *type;
int length;
} typelen[] = {
{ "seconds", 1 },
{ "minutes", 60 },
{ "hours", 60*60 },
{ "days", 24*60*60 },
{ "weeks", 7*24*60*60 },
{ NULL }
};
static const char *approxidate_alpha(const char *date, struct tm *tm, struct tm *now, int *num, int *touched)
{
const struct typelen *tl;
const struct special *s;
const char *end = date;
int i;
while (isalpha(*++end));
;
for (i = 0; i < 12; i++) {
int match = match_string(date, month_names[i]);
if (match >= 3) {
tm->tm_mon = i;
*touched = 1;
return end;
}
}
for (s = special; s->name; s++) {
int len = strlen(s->name);
if (match_string(date, s->name) == len) {
s->fn(tm, now, num);
*touched = 1;
return end;
}
}
if (!*num) {
for (i = 1; i < 11; i++) {
int len = strlen(number_name[i]);
if (match_string(date, number_name[i]) == len) {
*num = i;
*touched = 1;
return end;
}
}
if (match_string(date, "last") == 4) {
*num = 1;
*touched = 1;
}
return end;
}
tl = typelen;
while (tl->type) {
int len = strlen(tl->type);
if (match_string(date, tl->type) >= len-1) {
update_tm(tm, now, tl->length * *num);
*num = 0;
*touched = 1;
return end;
}
tl++;
}
for (i = 0; i < 7; i++) {
int match = match_string(date, weekday_names[i]);
if (match >= 3) {
int diff, n = *num -1;
*num = 0;
diff = tm->tm_wday - i;
if (diff <= 0)
n++;
diff += 7*n;
update_tm(tm, now, diff * 24 * 60 * 60);
*touched = 1;
return end;
}
}
if (match_string(date, "months") >= 5) {
int n;
update_tm(tm, now, 0); /* fill in date fields if needed */
n = tm->tm_mon - *num;
*num = 0;
while (n < 0) {
n += 12;
tm->tm_year--;
}
tm->tm_mon = n;
*touched = 1;
return end;
}
if (match_string(date, "years") >= 4) {
update_tm(tm, now, 0); /* fill in date fields if needed */
tm->tm_year -= *num;
*num = 0;
*touched = 1;
return end;
}
return end;
}
static const char *approxidate_digit(const char *date, struct tm *tm, int *num)
{
char *end;
unsigned long number = strtoul(date, &end, 10);
switch (*end) {
case ':':
case '.':
case '/':
case '-':
if (isdigit(end[1])) {
int match = match_multi_number(number, *end, date, end, tm);
if (match)
return date + match;
}
}
/* Accept zero-padding only for small numbers ("Dec 02", never "Dec 0002") */
if (date[0] != '0' || end - date <= 2)
*num = number;
return end;
}
/*
* Do we have a pending number at the end, or when
* we see a new one? Let's assume it's a month day,
* as in "Dec 6, 1992"
*/
static void pending_number(struct tm *tm, int *num)
{
int number = *num;
if (number) {
*num = 0;
if (tm->tm_mday < 0 && number < 32)
tm->tm_mday = number;
else if (tm->tm_mon < 0 && number < 13)
tm->tm_mon = number-1;
else if (tm->tm_year < 0) {
if (number > 1969 && number < 2100)
tm->tm_year = number - 1900;
else if (number > 69 && number < 100)
tm->tm_year = number;
else if (number < 38)
tm->tm_year = 100 + number;
/* We screw up for number = 00 ? */
}
}
}
static git_time_t approxidate_str(const char *date,
const struct timeval *tv,
int *error_ret)
{
int number = 0;
int touched = 0;
struct tm tm = {0}, now;
time_t time_sec;
time_sec = tv->tv_sec;
p_localtime_r(&time_sec, &tm);
now = tm;
tm.tm_year = -1;
tm.tm_mon = -1;
tm.tm_mday = -1;
for (;;) {
unsigned char c = *date;
if (!c)
break;
date++;
if (isdigit(c)) {
pending_number(&tm, &number);
date = approxidate_digit(date-1, &tm, &number);
touched = 1;
continue;
}
if (isalpha(c))
date = approxidate_alpha(date-1, &tm, &now, &number, &touched);
}
pending_number(&tm, &number);
if (!touched)
*error_ret = 1;
return update_tm(&tm, &now, 0);
}
int git__date_parse(git_time_t *out, const char *date)
{
struct timeval tv;
git_time_t timestamp;
int offset, error_ret=0;
if (!parse_date_basic(date, &timestamp, &offset)) {
*out = timestamp;
return 0;
}
p_gettimeofday(&tv, NULL);
*out = approxidate_str(date, &tv, &error_ret);
return error_ret;
}
src/posix.h
......@@ -59,9 +59,17 @@ extern int p_rename(const char *from, const char *to);
typedef int GIT_SOCKET;
#define INVALID_SOCKET -1
#define p_localtime_r localtime_r
#define p_gmtime_r gmtime_r
#define p_gettimeofday gettimeofday
#else
typedef SOCKET GIT_SOCKET;
extern struct tm * p_localtime_r (const time_t *timer, struct tm *result);
extern struct tm * p_gmtime_r (const time_t *timer, struct tm *result);
extern int p_gettimeofday(struct timeval *tv, struct timezone *tz);
#endif
......
src/revparse.c 0 → 100644
/*
* Copyright (C) 2009-2012 the libgit2 contributors
*
* This file is part of libgit2, distributed under the GNU GPL v2 with
* a Linking Exception. For full terms see the included COPYING file.
*/
#include <assert.h>
#include "common.h"
#include "buffer.h"
#include "tree.h"
#include "git2.h"
GIT_BEGIN_DECL
typedef enum {
REVPARSE_STATE_INIT,
REVPARSE_STATE_CARET,
REVPARSE_STATE_LINEAR,
REVPARSE_STATE_COLON,
REVPARSE_STATE_DONE,
} revparse_state;
static void set_invalid_syntax_err(const char *spec)
{
giterr_set(GITERR_INVALID, "Refspec '%s' is not valid.", spec);
}
static int revparse_lookup_fully_qualifed_ref(git_object **out, git_repository *repo, const char*spec)
{
git_oid resolved;
if (git_reference_name_to_oid(&resolved, repo, spec) < 0)
return GIT_ERROR;
return git_object_lookup(out, repo, &resolved, GIT_OBJ_ANY);
}
/* Returns non-zero if yes */
static int spec_looks_like_describe_output(const char *spec)
{
regex_t regex;
int regex_error, retcode;
regex_error = regcomp(&regex, ".+-[0-9]+-g[0-9a-fA-F]+", REG_EXTENDED);
if (regex_error != 0) {
giterr_set_regex(&regex, regex_error);
return 1; /* To be safe */
}
retcode = regexec(&regex, spec, 0, NULL, 0);
regfree(&regex);
return retcode == 0;
}
static int revparse_lookup_object(git_object **out, git_repository *repo, const char *spec)
{
size_t speclen = strlen(spec);
git_object *obj = NULL;
git_oid oid;
git_buf refnamebuf = GIT_BUF_INIT;
static const char* formatters[] = {
"refs/%s",
"refs/tags/%s",
"refs/heads/%s",
"refs/remotes/%s",
"refs/remotes/%s/HEAD",
NULL
};
unsigned int i;
const char *substr;
/* "git describe" output; snip everything before/including "-g" */
substr = strstr(spec, "-g");
if (substr &&
spec_looks_like_describe_output(spec) &&
!revparse_lookup_object(out, repo, substr+2)) {
return 0;
}
/* SHA or prefix */
if (!git_oid_fromstrn(&oid, spec, speclen)) {
if (!git_object_lookup_prefix(&obj, repo, &oid, speclen, GIT_OBJ_ANY)) {
*out = obj;
return 0;
}
}
/* Fully-named ref */
if (!revparse_lookup_fully_qualifed_ref(&obj, repo, spec)) {
*out = obj;
return 0;
}
/* Partially-named ref; match in this order: */
for (i=0; formatters[i]; i++) {
git_buf_clear(&refnamebuf);
if (git_buf_printf(&refnamebuf, formatters[i], spec) < 0) {
return GIT_ERROR;
}
if (!revparse_lookup_fully_qualifed_ref(&obj, repo, git_buf_cstr(&refnamebuf))) {
git_buf_free(&refnamebuf);
*out = obj;
return 0;
}
}
git_buf_free(&refnamebuf);
giterr_set(GITERR_REFERENCE, "Refspec '%s' not found.", spec);
return GIT_ERROR;
}
static int all_chars_are_digits(const char *str, size_t len)
{
size_t i=0;
for (i=0; i<len; i++) {
if (str[i] < '0' || str[i] > '9') return 0;
}
return 1;
}
static void normalize_maybe_empty_refname(git_buf *buf, git_repository *repo, const char *refspec, size_t refspeclen)
{
git_reference *ref;
if (!refspeclen) {
/* Empty refspec means current branch (target of HEAD) */
git_reference_lookup(&ref, repo, "HEAD");
git_buf_puts(buf, git_reference_target(ref));
git_reference_free(ref);
} else if (strstr(refspec, "HEAD")) {
/* Explicit head */
git_buf_puts(buf, refspec);
}else {
if (git__prefixcmp(refspec, "refs/heads/") != 0) {
git_buf_printf(buf, "refs/heads/%s", refspec);
} else {
git_buf_puts(buf, refspec);
}
}
}
static int walk_ref_history(git_object **out, git_repository *repo, const char *refspec, const char *reflogspec)
{
git_reference *ref;
git_reflog *reflog = NULL;
int n, retcode = GIT_ERROR;
int i, refloglen;
const git_reflog_entry *entry;
git_buf buf = GIT_BUF_INIT;
size_t refspeclen = strlen(refspec);
size_t reflogspeclen = strlen(reflogspec);
if (git__prefixcmp(reflogspec, "@{") != 0 ||
git__suffixcmp(reflogspec, "}") != 0) {
giterr_set(GITERR_INVALID, "Bad reflogspec '%s'", reflogspec);
return GIT_ERROR;
}
/* "@{-N}" form means walk back N checkouts. That means the HEAD log. */
if (refspeclen == 0 && !git__prefixcmp(reflogspec, "@{-")) {
regex_t regex;
int regex_error;
if (git__strtol32(&n, reflogspec+3, NULL, 0) < 0 ||
n < 1) {
giterr_set(GITERR_INVALID, "Invalid reflogspec %s", reflogspec);
return GIT_ERROR;
}
if (!git_reference_lookup(&ref, repo, "HEAD")) {
if (!git_reflog_read(&reflog, ref)) {
regex_error = regcomp(&regex, "checkout: moving from (.*) to .*", REG_EXTENDED);
if (regex_error != 0) {
giterr_set_regex(&regex, regex_error);
} else {
regmatch_t regexmatches[2];
refloglen = git_reflog_entrycount(reflog);
for (i=refloglen-1; i >= 0; i--) {
const char *msg;
entry = git_reflog_entry_byindex(reflog, i);
msg = git_reflog_entry_msg(entry);
if (!regexec(&regex, msg, 2, regexmatches, 0)) {
n--;
if (!n) {
git_buf_put(&buf, msg+regexmatches[1].rm_so, regexmatches[1].rm_eo - regexmatches[1].rm_so);
retcode = revparse_lookup_object(out, repo, git_buf_cstr(&buf));
break;
}
}
}
regfree(&regex);
}
}
git_reference_free(ref);
}
} else {
int date_error = 0;
git_time_t timestamp;
git_buf datebuf = GIT_BUF_INIT;
git_buf_put(&datebuf, reflogspec+2, reflogspeclen-3);
date_error = git__date_parse(&timestamp, git_buf_cstr(&datebuf));
/* @{u} or @{upstream} -> upstream branch, for a tracking branch. This is stored in the config. */
if (!strcmp(reflogspec, "@{u}") || !strcmp(reflogspec, "@{upstream}")) {
git_config *cfg;
if (!git_repository_config(&cfg, repo)) {
/* Is the ref a tracking branch? */
const char *remote;
git_buf_clear(&buf);
git_buf_printf(&buf, "branch.%s.remote", refspec);
if (!git_config_get_string(&remote, cfg, git_buf_cstr(&buf))) {
/* Yes. Find the first merge target name. */
const char *mergetarget;
git_buf_clear(&buf);
git_buf_printf(&buf, "branch.%s.merge", refspec);
if (!git_config_get_string(&mergetarget, cfg, git_buf_cstr(&buf)) &&
!git__prefixcmp(mergetarget, "refs/heads/")) {
/* Success. Look up the target and fetch the object. */
git_buf_clear(&buf);
git_buf_printf(&buf, "refs/remotes/%s/%s", remote, mergetarget+11);
retcode = revparse_lookup_fully_qualifed_ref(out, repo, git_buf_cstr(&buf));
}
}
git_config_free(cfg);
}
}
/* @{N} -> Nth prior value for the ref (from reflog) */
else if (all_chars_are_digits(reflogspec+2, reflogspeclen-3) &&
!git__strtol32(&n, reflogspec+2, NULL, 0) &&
n <= 100000000) { /* Allow integer time */
normalize_maybe_empty_refname(&buf, repo, refspec, refspeclen);
if (n == 0) {
retcode = revparse_lookup_fully_qualifed_ref(out, repo, git_buf_cstr(&buf));
} else if (!git_reference_lookup(&ref, repo, git_buf_cstr(&buf))) {
if (!git_reflog_read(&reflog, ref)) {
int numentries = git_reflog_entrycount(reflog);
if (numentries < n) {
giterr_set(GITERR_REFERENCE, "Reflog for '%s' has only %d entries, asked for %d",
git_buf_cstr(&buf), numentries, n);
retcode = GIT_ERROR;
} else {
const git_reflog_entry *entry = git_reflog_entry_byindex(reflog, n);
const git_oid *oid = git_reflog_entry_oidold(entry);
retcode = git_object_lookup(out, repo, oid, GIT_OBJ_ANY);
}
}
git_reference_free(ref);
}
}
else if (!date_error) {
/* Ref as it was on a certain date */
normalize_maybe_empty_refname(&buf, repo, refspec, refspeclen);
if (!git_reference_lookup(&ref, repo, git_buf_cstr(&buf))) {
git_reflog *reflog;
if (!git_reflog_read(&reflog, ref)) {
/* Keep walking until we find an entry older than the given date */
int numentries = git_reflog_entrycount(reflog);
int i;
/* TODO: clunky. Factor "now" into a utility */
git_signature *sig;
git_time as_of;
git_signature_now(&sig, "blah", "blah");
as_of = sig->when;
git_signature_free(sig);
as_of.time = (timestamp > 0)
? timestamp
: sig->when.time + timestamp;
for (i=numentries-1; i>0; i--) {
const git_reflog_entry *entry = git_reflog_entry_byindex(reflog, i);
git_time commit_time = git_reflog_entry_committer(entry)->when;
if (git__time_cmp(&commit_time, &as_of) <= 0 ) {
retcode = git_object_lookup(out, repo, git_reflog_entry_oidnew(entry), GIT_OBJ_ANY);
break;
}
}
if (!i) {
/* Didn't find a match. Use the oldest revision in the reflog. */
const git_reflog_entry *entry = git_reflog_entry_byindex(reflog, 0);
retcode = git_object_lookup(out, repo, git_reflog_entry_oidnew(entry), GIT_OBJ_ANY);
}
git_reflog_free(reflog);
}
git_reference_free(ref);
}
}
git_buf_free(&datebuf);
}
if (reflog) git_reflog_free(reflog);
git_buf_free(&buf);
return retcode;
}
static git_object* dereference_object(git_object *obj)
{
git_otype type = git_object_type(obj);
switch (type) {
case GIT_OBJ_COMMIT:
{
git_tree *tree = NULL;
if (0 == git_commit_tree(&tree, (git_commit*)obj)) {
return (git_object*)tree;
}
}
break;
case GIT_OBJ_TAG:
{
git_object *newobj = NULL;
if (0 == git_tag_target(&newobj, (git_tag*)obj)) {
return newobj;
}
}
break;
default:
case GIT_OBJ_TREE:
case GIT_OBJ_BLOB:
case GIT_OBJ_OFS_DELTA:
case GIT_OBJ_REF_DELTA:
break;
}
/* Can't dereference some types */
return NULL;
}
static int dereference_to_type(git_object **out, git_object *obj, git_otype target_type)
{
int retcode = 1;
git_object *obj1 = obj, *obj2 = obj;
while (retcode > 0) {
git_otype this_type = git_object_type(obj1);
if (this_type == target_type) {
*out = obj1;
retcode = 0;
} else {
/* Dereference once, if possible. */
obj2 = dereference_object(obj1);
if (!obj2) {
giterr_set(GITERR_REFERENCE, "Can't dereference to type");
retcode = GIT_ERROR;
}
}
if (obj1 != obj && obj1 != obj2) {
git_object_free(obj1);
}
obj1 = obj2;
}
return retcode;
}
static git_otype parse_obj_type(const char *str)
{
if (!strcmp(str, "{commit}")) return GIT_OBJ_COMMIT;
if (!strcmp(str, "{tree}")) return GIT_OBJ_TREE;
if (!strcmp(str, "{blob}")) return GIT_OBJ_BLOB;
if (!strcmp(str, "{tag}")) return GIT_OBJ_TAG;
return GIT_OBJ_BAD;
}
static int handle_caret_syntax(git_object **out, git_repository *repo, git_object *obj, const char *movement)
{
git_commit *commit;
size_t movementlen = strlen(movement);
int n;
if (*movement == '{') {
if (movement[movementlen-1] != '}') {
set_invalid_syntax_err(movement);
return GIT_ERROR;
}
/* {} -> Dereference until we reach an object that isn't a tag. */
if (movementlen == 2) {
git_object *newobj = obj;
git_object *newobj2 = newobj;
while (git_object_type(newobj2) == GIT_OBJ_TAG) {
newobj2 = dereference_object(newobj);
if (newobj != obj) git_object_free(newobj);
if (!newobj2) {
giterr_set(GITERR_REFERENCE, "Couldn't find object of target type.");
return GIT_ERROR;
}
newobj = newobj2;
}
*out = newobj2;
return 0;
}
/* {/...} -> Walk all commits until we see a commit msg that matches the phrase. */
if (movement[1] == '/') {
int retcode = GIT_ERROR;
git_revwalk *walk;
if (!git_revwalk_new(&walk, repo)) {
git_oid oid;
regex_t preg;
int reg_error;
git_buf buf = GIT_BUF_INIT;
git_revwalk_sorting(walk, GIT_SORT_TIME);
git_revwalk_push(walk, git_object_id(obj));
/* Extract the regex from the movement string */
git_buf_put(&buf, movement+2, strlen(movement)-3);
reg_error = regcomp(&preg, git_buf_cstr(&buf), REG_EXTENDED);
if (reg_error != 0) {
giterr_set_regex(&preg, reg_error);
} else {
while(!git_revwalk_next(&oid, walk)) {
git_object *walkobj;
/* Fetch the commit object, and check for matches in the message */
if (!git_object_lookup(&walkobj, repo, &oid, GIT_OBJ_COMMIT)) {
if (!regexec(&preg, git_commit_message((git_commit*)walkobj), 0, NULL, 0)) {
/* Found it! */
retcode = 0;
*out = walkobj;
if (obj == walkobj) {
/* Avoid leaking an object */
git_object_free(walkobj);
}
break;
}
git_object_free(walkobj);
}
}
if (retcode < 0) {
giterr_set(GITERR_REFERENCE, "Couldn't find a match for %s", movement);
}
regfree(&preg);
}
git_buf_free(&buf);
git_revwalk_free(walk);
}
return retcode;
}
/* {...} -> Dereference until we reach an object of a certain type. */
if (dereference_to_type(out, obj, parse_obj_type(movement)) < 0) {
return GIT_ERROR;
}
return 0;
}
/* Dereference until we reach a commit. */
if (dereference_to_type(&obj, obj, GIT_OBJ_COMMIT) < 0) {
/* Can't dereference to a commit; fail */
return GIT_ERROR;
}
/* "^" is the same as "^1" */
if (movementlen == 0) {
n = 1;
} else {
git__strtol32(&n, movement, NULL, 0);
}
commit = (git_commit*)obj;
/* "^0" just returns the input */
if (n == 0) {
*out = obj;
return 0;
}
if (git_commit_parent(&commit, commit, n-1) < 0) {
return GIT_ERROR;
}
*out = (git_object*)commit;
return 0;
}
static int handle_linear_syntax(git_object **out, git_object *obj, const char *movement)
{
git_commit *commit1, *commit2;
int i, n;
/* Dereference until we reach a commit. */
if (dereference_to_type(&obj, obj, GIT_OBJ_COMMIT) < 0) {
/* Can't dereference to a commit; fail */
return GIT_ERROR;
}
/* "~" is the same as "~1" */
if (strlen(movement) == 0) {
n = 1;
} else {
git__strtol32(&n, movement, NULL, 0);
}
commit1 = (git_commit*)obj;
/* "~0" just returns the input */
if (n == 0) {
*out = obj;
return 0;
}
for (i=0; i<n; i++) {
if (git_commit_parent(&commit2, commit1, 0) < 0) {
return GIT_ERROR;
}
if (commit1 != (git_commit*)obj) {
git_commit_free(commit1);
}
commit1 = commit2;
}
*out = (git_object*)commit1;
return 0;
}
static int oid_for_tree_path(git_oid *out, git_tree *tree, git_repository *repo, const char *path)
{
char *str = git__strdup(path);
char *tok;
void *alloc = str;
git_tree *tree2 = tree;
const git_tree_entry *entry;
while ((tok = git__strtok(&str, "/\\")) != NULL) {
entry = git_tree_entry_byname(tree2, tok);
if (tree2 != tree) git_tree_free(tree2);
if (git_tree_entry__is_tree(entry)) {
if (git_tree_lookup(&tree2, repo, &entry->oid) < 0) {
git__free(alloc);
return GIT_ERROR;
}
}
}
git_oid_cpy(out, git_tree_entry_id(entry));
git__free(alloc);
return 0;
}
static int handle_colon_syntax(git_object **out,
git_repository *repo,
git_object *obj,
const char *path)
{
git_tree *tree;
git_oid oid;
/* Dereference until we reach a tree. */
if (dereference_to_type(&obj, obj, GIT_OBJ_TREE) < 0) {
return GIT_ERROR;
}
tree = (git_tree*)obj;
/* Find the blob at the given path. */
oid_for_tree_path(&oid, tree, repo, path);
git_tree_free(tree);
return git_object_lookup(out, repo, &oid, GIT_OBJ_ANY);
}
static int revparse_global_grep(git_object **out, git_repository *repo, const char *pattern)
{
git_revwalk *walk;
int retcode = GIT_ERROR;
if (!git_revwalk_new(&walk, repo)) {
regex_t preg;
int reg_error;
git_oid oid;
git_revwalk_sorting(walk, GIT_SORT_TIME);
git_revwalk_push_glob(walk, "refs/heads/*");
reg_error = regcomp(&preg, pattern, REG_EXTENDED);
if (reg_error != 0) {
giterr_set_regex(&preg, reg_error);
} else {
git_object *walkobj = NULL, *resultobj = NULL;
while(!git_revwalk_next(&oid, walk)) {
/* Fetch the commit object, and check for matches in the message */
if (walkobj != resultobj) git_object_free(walkobj);
if (!git_object_lookup(&walkobj, repo, &oid, GIT_OBJ_COMMIT)) {
if (!regexec(&preg, git_commit_message((git_commit*)walkobj), 0, NULL, 0)) {
/* Match! */
resultobj = walkobj;
retcode = 0;
break;
}
}
}
if (!resultobj) {
giterr_set(GITERR_REFERENCE, "Couldn't find a match for %s", pattern);
} else {
*out = resultobj;
}
regfree(&preg);
git_revwalk_free(walk);
}
}
return retcode;
}
int git_revparse_single(git_object **out, git_repository *repo, const char *spec)
{
revparse_state current_state = REVPARSE_STATE_INIT, next_state = REVPARSE_STATE_INIT;
const char *spec_cur = spec;
git_object *cur_obj = NULL, *next_obj = NULL;
git_buf specbuffer = GIT_BUF_INIT, stepbuffer = GIT_BUF_INIT;
int retcode = 0;
assert(out && repo && spec);
if (spec[0] == ':') {
if (spec[1] == '/') {
return revparse_global_grep(out, repo, spec+2);
}
/* TODO: support merge-stage path lookup (":2:Makefile"). */
giterr_set(GITERR_INVALID, "Unimplemented");
return GIT_ERROR;
}
while (current_state != REVPARSE_STATE_DONE) {
switch (current_state) {
case REVPARSE_STATE_INIT:
if (!*spec_cur) {
/* No operators, just a name. Find it and return. */
retcode = revparse_lookup_object(out, repo, spec);
next_state = REVPARSE_STATE_DONE;
} else if (*spec_cur == '@') {
/* '@' syntax doesn't allow chaining */
git_buf_puts(&stepbuffer, spec_cur);
retcode = walk_ref_history(out, repo, git_buf_cstr(&specbuffer), git_buf_cstr(&stepbuffer));
next_state = REVPARSE_STATE_DONE;
} else if (*spec_cur == '^') {
next_state = REVPARSE_STATE_CARET;
} else if (*spec_cur == '~') {
next_state = REVPARSE_STATE_LINEAR;
} else if (*spec_cur == ':') {
next_state = REVPARSE_STATE_COLON;
} else {
git_buf_putc(&specbuffer, *spec_cur);
}
spec_cur++;
if (current_state != next_state && next_state != REVPARSE_STATE_DONE) {
/* Leaving INIT state, find the object specified, in case that state needs it */
if (revparse_lookup_object(&next_obj, repo, git_buf_cstr(&specbuffer)) < 0) {
retcode = GIT_ERROR;
next_state = REVPARSE_STATE_DONE;
}
}
break;
case REVPARSE_STATE_CARET:
/* Gather characters until NULL, '~', or '^' */
if (!*spec_cur) {
retcode = handle_caret_syntax(out, repo, cur_obj, git_buf_cstr(&stepbuffer));
next_state = REVPARSE_STATE_DONE;
} else if (*spec_cur == '~') {
retcode = handle_caret_syntax(&next_obj, repo, cur_obj, git_buf_cstr(&stepbuffer));
git_buf_clear(&stepbuffer);
next_state = !retcode ? REVPARSE_STATE_LINEAR : REVPARSE_STATE_DONE;
} else if (*spec_cur == '^') {
retcode = handle_caret_syntax(&next_obj, repo, cur_obj, git_buf_cstr(&stepbuffer));
git_buf_clear(&stepbuffer);
if (retcode < 0) {
next_state = REVPARSE_STATE_DONE;
}
} else {
git_buf_putc(&stepbuffer, *spec_cur);
}
spec_cur++;
break;
case REVPARSE_STATE_LINEAR:
if (!*spec_cur) {
retcode = handle_linear_syntax(out, cur_obj, git_buf_cstr(&stepbuffer));
next_state = REVPARSE_STATE_DONE;
} else if (*spec_cur == '~') {
retcode = handle_linear_syntax(&next_obj, cur_obj, git_buf_cstr(&stepbuffer));
git_buf_clear(&stepbuffer);
if (retcode < 0) {
next_state = REVPARSE_STATE_DONE;
}
} else if (*spec_cur == '^') {
retcode = handle_linear_syntax(&next_obj, cur_obj, git_buf_cstr(&stepbuffer));
git_buf_clear(&stepbuffer);
next_state = !retcode ? REVPARSE_STATE_CARET : REVPARSE_STATE_DONE;
} else {
git_buf_putc(&stepbuffer, *spec_cur);
}
spec_cur++;
break;
case REVPARSE_STATE_COLON:
if (*spec_cur) {
git_buf_putc(&stepbuffer, *spec_cur);
} else {
retcode = handle_colon_syntax(out, repo, cur_obj, git_buf_cstr(&stepbuffer));
next_state = REVPARSE_STATE_DONE;
}
spec_cur++;
break;
case REVPARSE_STATE_DONE:
if (cur_obj && *out != cur_obj) git_object_free(cur_obj);
if (next_obj && *out != next_obj) git_object_free(next_obj);
break;
}
current_state = next_state;
if (cur_obj != next_obj) {
if (cur_obj) git_object_free(cur_obj);
cur_obj = next_obj;
}
}
if (*out != cur_obj) git_object_free(cur_obj);
if (*out != next_obj && next_obj != cur_obj) git_object_free(next_obj);
git_buf_free(&specbuffer);
git_buf_free(&stepbuffer);
return retcode;
}
GIT_END_DECL
src/signature.c
......@@ -113,26 +113,14 @@ int git_signature_now(git_signature **sig_out, const char *name, const char *ema
time_t offset;
struct tm *utc_tm, *local_tm;
git_signature *sig;
#ifndef GIT_WIN32
struct tm _utc, _local;
#endif
*sig_out = NULL;
time(&now);
/**
* On Win32, `gmtime_r` doesn't exist but
* `gmtime` is threadsafe, so we can use that
*/
#ifdef GIT_WIN32
utc_tm = gmtime(&now);
local_tm = localtime(&now);
#else
utc_tm = gmtime_r(&now, &_utc);
local_tm = localtime_r(&now, &_local);
#endif
utc_tm = p_gmtime_r(&now, &_utc);
local_tm = p_localtime_r(&now, &_local);
offset = mktime(local_tm) - mktime(utc_tm);
offset /= 60;
......
src/util.h
......@@ -209,6 +209,13 @@ GIT_INLINE(bool) git__isspace(int c)
return (c == ' ' || c == '\t' || c == '\n' || c == '\f' || c == '\r' || c == '\v');
}
GIT_INLINE(int) git__time_cmp(const git_time *a, const git_time *b)
{
/* Adjust for time zones. Times are in seconds, offsets are in minutes. */
git_time_t adjusted_a = a->time + ((b->offset - a->offset) * 60);
return (int)(adjusted_a - b->time);
}
GIT_INLINE(bool) git__iswildcard(int c)
{
return (c == '*' || c == '?' || c == '[');
......@@ -223,4 +230,14 @@ GIT_INLINE(bool) git__iswildcard(int c)
*/
extern int git__parse_bool(int *out, const char *value);
/*
* Parse a string into a value as a git_time_t.
*
* Sample valid input:
* - "yesterday"
* - "July 17, 2003"
* - "2003-7-17 08:23"
*/
int git__date_parse(git_time_t *out, const char *date);
#endif /* INCLUDE_util_h__ */
src/win32/posix_w32.c
......@@ -470,3 +470,79 @@ int p_send(GIT_SOCKET socket, const void *buffer, size_t length, int flags)
return send(socket, buffer, (int)length, flags);
}
/**
* Borrowed from http://old.nabble.com/Porting-localtime_r-and-gmtime_r-td15282276.html
* On Win32, `gmtime_r` doesn't exist but `gmtime` is threadsafe, so we can use that
*/
struct tm *
p_localtime_r (const time_t *timer, struct tm *result)
{
struct tm *local_result;
local_result = localtime (timer);
if (local_result == NULL || result == NULL)
return NULL;
memcpy (result, local_result, sizeof (struct tm));
return result;
}
struct tm *
p_gmtime_r (const time_t *timer, struct tm *result)
{
struct tm *local_result;
local_result = gmtime (timer);
if (local_result == NULL || result == NULL)
return NULL;
memcpy (result, local_result, sizeof (struct tm));
return result;
}
#if defined(_MSC_VER) || defined(_MSC_EXTENSIONS)
#define DELTA_EPOCH_IN_MICROSECS 11644473600000000Ui64
#else
#define DELTA_EPOCH_IN_MICROSECS 11644473600000000ULL
#endif
struct timezone
{
int tz_minuteswest; /* minutes W of Greenwich */
int tz_dsttime; /* type of dst correction */
};
int p_gettimeofday(struct timeval *tv, struct timezone *tz)
{
FILETIME ft;
unsigned __int64 tmpres = 0;
static int tzflag;
if (NULL != tv)
{
GetSystemTimeAsFileTime(&ft);
tmpres |= ft.dwHighDateTime;
tmpres <<= 32;
tmpres |= ft.dwLowDateTime;
/*converting file time to unix epoch*/
tmpres /= 10; /*convert into microseconds*/
tmpres -= DELTA_EPOCH_IN_MICROSECS;
tv->tv_sec = (long)(tmpres / 1000000UL);
tv->tv_usec = (long)(tmpres % 1000000UL);
}
if (NULL != tz)
{
if (!tzflag)
{
_tzset();
tzflag++;
}
tz->tz_minuteswest = _timezone / 60;
tz->tz_dsttime = _daylight;
}
return 0;
}
tests-clar/date/date.c 0 → 100644
#include "clar_libgit2.h"
#include "util.h"
void test_date_date__overflow(void)
{
#ifdef __LP64__
git_time_t d2038, d2039;
/* This is expected to fail on a 32-bit machine. */
cl_git_pass(git__date_parse(&d2038, "2038-1-1"));
cl_git_pass(git__date_parse(&d2039, "2039-1-1"));
cl_assert(d2038 < d2039);
#endif
}
tests-clar/network/remotelocal.c
......@@ -107,7 +107,7 @@ void test_network_remotelocal__retrieve_advertised_references(void)
cl_git_pass(git_remote_ls(remote, &count_ref__cb, &how_many_refs));
cl_assert(how_many_refs == 14); /* 1 HEAD + 6 heads + 1 lightweight tag + 3 annotated tags + 3 peeled target */
cl_assert_equal_i(how_many_refs, 20);
}
void test_network_remotelocal__retrieve_advertised_references_from_spaced_repository(void)
......@@ -121,7 +121,7 @@ void test_network_remotelocal__retrieve_advertised_references_from_spaced_reposi
cl_git_pass(git_remote_ls(remote, &count_ref__cb, &how_many_refs));
cl_assert(how_many_refs == 14); /* 1 HEAD + 6 heads + 1 lightweight tag + 3 annotated tags + 3 peeled target */
cl_assert_equal_i(how_many_refs, 20);
git_remote_free(remote); /* Disconnect from the "spaced repo" before the cleanup */
remote = NULL;
......
tests-clar/refs/branches/listall.c
......@@ -30,22 +30,22 @@ static void assert_retrieval(unsigned int flags, unsigned int expected_count)
{
cl_git_pass(git_branch_list(&branch_list, repo, flags));
cl_assert_equal_i(expected_count, branch_list.count);
cl_assert_equal_i(branch_list.count, expected_count);
}
void test_refs_branches_listall__retrieve_all_branches(void)
{
assert_retrieval(GIT_BRANCH_LOCAL | GIT_BRANCH_REMOTE, 6 + 1);
assert_retrieval(GIT_BRANCH_LOCAL | GIT_BRANCH_REMOTE, 9);
}
void test_refs_branches_listall__retrieve_remote_branches(void)
{
assert_retrieval(GIT_BRANCH_REMOTE, 1);
assert_retrieval(GIT_BRANCH_REMOTE, 2);
}
void test_refs_branches_listall__retrieve_local_branches(void)
{
assert_retrieval(GIT_BRANCH_LOCAL, 6);
assert_retrieval(GIT_BRANCH_LOCAL, 7);
}
static void assert_branch_list_contains(git_strarray *branches, const char* expected_branch_name)
......
tests-clar/refs/revparse.c 0 → 100644
#include "clar_libgit2.h"
#include "git2/revparse.h"
static git_repository *g_repo;
static git_object *g_obj;
/* Helpers */
static void test_object(const char *spec, const char *expected_oid)
{
char objstr[64] = {0};
cl_git_pass(git_revparse_single(&g_obj, g_repo, spec));
git_oid_fmt(objstr, git_object_id(g_obj));
cl_assert_equal_s(objstr, expected_oid);
git_object_free(g_obj);
g_obj = NULL;
}
void test_refs_revparse__initialize(void)
{
g_repo = cl_git_sandbox_init("testrepo.git");
}
void test_refs_revparse__cleanup(void)
{
cl_git_sandbox_cleanup();
g_obj = NULL;
}
void test_refs_revparse__nonexistant_object(void)
{
cl_git_fail(git_revparse_single(&g_obj, g_repo, "this doesn't exist"));
cl_git_fail(git_revparse_single(&g_obj, g_repo, "this doesn't exist^1"));
cl_git_fail(git_revparse_single(&g_obj, g_repo, "this doesn't exist~2"));
}
void test_refs_revparse__shas(void)
{
test_object("c47800c7266a2be04c571c04d5a6614691ea99bd", "c47800c7266a2be04c571c04d5a6614691ea99bd");
test_object("c47800c", "c47800c7266a2be04c571c04d5a6614691ea99bd");
}
void test_refs_revparse__head(void)
{
test_object("HEAD", "a65fedf39aefe402d3bb6e24df4d4f5fe4547750");
}
void test_refs_revparse__full_refs(void)
{
test_object("refs/heads/master", "a65fedf39aefe402d3bb6e24df4d4f5fe4547750");
test_object("refs/heads/test", "e90810b8df3e80c413d903f631643c716887138d");
test_object("refs/tags/test", "b25fa35b38051e4ae45d4222e795f9df2e43f1d1");
}
void test_refs_revparse__partial_refs(void)
{
test_object("point_to_blob", "1385f264afb75a56a5bec74243be9b367ba4ca08");
test_object("packed-test", "4a202b346bb0fb0db7eff3cffeb3c70babbd2045");
test_object("br2", "a4a7dce85cf63874e984719f4fdd239f5145052f");
}
void test_refs_revparse__describe_output(void)
{
test_object("blah-7-gc47800c", "c47800c7266a2be04c571c04d5a6614691ea99bd");
test_object("not-good", "a65fedf39aefe402d3bb6e24df4d4f5fe4547750");
}
void test_refs_revparse__nth_parent(void)
{
test_object("be3563a^1", "9fd738e8f7967c078dceed8190330fc8648ee56a");
test_object("be3563a^", "9fd738e8f7967c078dceed8190330fc8648ee56a");
test_object("be3563a^2", "c47800c7266a2be04c571c04d5a6614691ea99bd");
test_object("be3563a^1^1", "4a202b346bb0fb0db7eff3cffeb3c70babbd2045");
test_object("be3563a^2^1", "5b5b025afb0b4c913b4c338a42934a3863bf3644");
test_object("be3563a^0", "be3563ae3f795b2b4353bcce3a527ad0a4f7f644");
}
void test_refs_revparse__not_tag(void)
{
test_object("point_to_blob^{}", "1385f264afb75a56a5bec74243be9b367ba4ca08");
test_object("wrapped_tag^{}", "a65fedf39aefe402d3bb6e24df4d4f5fe4547750");
}
void test_refs_revparse__to_type(void)
{
test_object("wrapped_tag^{commit}", "a65fedf39aefe402d3bb6e24df4d4f5fe4547750");
test_object("wrapped_tag^{tree}", "944c0f6e4dfa41595e6eb3ceecdb14f50fe18162");
test_object("point_to_blob^{blob}", "1385f264afb75a56a5bec74243be9b367ba4ca08");
cl_git_fail(git_revparse_single(&g_obj, g_repo, "wrapped_tag^{blob}"));
}
void test_refs_revparse__linear_history(void)
{
test_object("master~0", "a65fedf39aefe402d3bb6e24df4d4f5fe4547750");
test_object("master~1", "be3563ae3f795b2b4353bcce3a527ad0a4f7f644");
test_object("master~2", "9fd738e8f7967c078dceed8190330fc8648ee56a");
test_object("master~1~1", "9fd738e8f7967c078dceed8190330fc8648ee56a");
}
void test_refs_revparse__chaining(void)
{
test_object("master~1^1", "9fd738e8f7967c078dceed8190330fc8648ee56a");
test_object("master~1^2", "c47800c7266a2be04c571c04d5a6614691ea99bd");
test_object("master^1^2~1", "5b5b025afb0b4c913b4c338a42934a3863bf3644");
test_object("master^1^1^1^1^1", "8496071c1b46c854b31185ea97743be6a8774479");
}
void test_refs_revparse__reflog(void)
{
cl_git_fail(git_revparse_single(&g_obj, g_repo, "@{-xyz}"));
cl_git_fail(git_revparse_single(&g_obj, g_repo, "@{-0}"));
cl_git_fail(git_revparse_single(&g_obj, g_repo, "@{1000}"));
test_object("@{-2}", "a65fedf39aefe402d3bb6e24df4d4f5fe4547750");
test_object("@{-1}", "a4a7dce85cf63874e984719f4fdd239f5145052f");
test_object("master@{0}", "a65fedf39aefe402d3bb6e24df4d4f5fe4547750");
test_object("master@{1}", "be3563ae3f795b2b4353bcce3a527ad0a4f7f644");
test_object("@{0}", "a65fedf39aefe402d3bb6e24df4d4f5fe4547750");
test_object("@{1}", "be3563ae3f795b2b4353bcce3a527ad0a4f7f644");
test_object("master@{upstream}", "be3563ae3f795b2b4353bcce3a527ad0a4f7f644");
test_object("master@{u}", "be3563ae3f795b2b4353bcce3a527ad0a4f7f644");
}
void test_refs_revparse__revwalk(void)
{
cl_git_fail(git_revparse_single(&g_obj, g_repo, "master^{/not found in any commit}"));
cl_git_fail(git_revparse_single(&g_obj, g_repo, "master^{/merge}"));
cl_git_fail(git_revparse_single(&g_obj, g_repo, "master^{/((}"));
test_object("master^{/anoth}", "5b5b025afb0b4c913b4c338a42934a3863bf3644");
test_object("master^{/Merge}", "be3563ae3f795b2b4353bcce3a527ad0a4f7f644");
test_object("br2^{/Merge}", "a4a7dce85cf63874e984719f4fdd239f5145052f");
test_object("master^{/fo.rth}", "9fd738e8f7967c078dceed8190330fc8648ee56a");
}
void test_refs_revparse__date(void)
{
test_object("HEAD@{10 years ago}", "be3563ae3f795b2b4353bcce3a527ad0a4f7f644");
test_object("HEAD@{1 second}", "a65fedf39aefe402d3bb6e24df4d4f5fe4547750");
test_object("master@{2012-4-30 10:23:20 -0800}", "be3563ae3f795b2b4353bcce3a527ad0a4f7f644");
test_object("master@{2012-4-30 10:24 -0800}", "a65fedf39aefe402d3bb6e24df4d4f5fe4547750");
test_object("master@{2012-4-30 16:24 -0200}", "a65fedf39aefe402d3bb6e24df4d4f5fe4547750");
test_object("master@{1335806600}", "be3563ae3f795b2b4353bcce3a527ad0a4f7f644");
test_object("master@{1335816640}", "a65fedf39aefe402d3bb6e24df4d4f5fe4547750");
/* Core git gives a65fedf, because they don't take time zones into account. */
test_object("master@{1335806640}", "be3563ae3f795b2b4353bcce3a527ad0a4f7f644");
}
void test_refs_revparse__colon(void)
{
cl_git_fail(git_revparse_single(&g_obj, g_repo, ":/"));
cl_git_fail(git_revparse_single(&g_obj, g_repo, ":/not found in any commit"));
cl_git_fail(git_revparse_single(&g_obj, g_repo, ":2:README"));
test_object("subtrees:ab/4.txt", "d6c93164c249c8000205dd4ec5cbca1b516d487f");
test_object("subtrees:ab/de/fgh/1.txt", "1f67fc4386b2d171e0d21be1c447e12660561f9b");
test_object("master:README", "a8233120f6ad708f843d861ce2b7228ec4e3dec6");
test_object("master:new.txt", "a71586c1dfe8a71c6cbf6c129f404c5642ff31bd");
test_object(":/Merge", "a4a7dce85cf63874e984719f4fdd239f5145052f");
test_object(":/one", "c47800c7266a2be04c571c04d5a6614691ea99bd");
test_object(":/packed commit t", "41bc8c69075bbdb46c5c6f0566cc8cc5b46e8bd9");
}
tests-clar/resources/testrepo.git/config
......@@ -6,3 +6,7 @@
[remote "test"]
url = git://github.com/libgit2/libgit2
fetch = +refs/heads/*:refs/remotes/test/*
[branch "master"]
remote = test
merge = refs/heads/master
tests-clar/resources/testrepo.git/logs/HEAD 0 → 100644
0000000000000000000000000000000000000000 be3563ae3f795b2b4353bcce3a527ad0a4f7f644 Ben Straub <bstraub@github.com> 1335806563 -0700 clone: from /Users/ben/src/libgit2/tests/resources/testrepo.git
be3563ae3f795b2b4353bcce3a527ad0a4f7f644 a65fedf39aefe402d3bb6e24df4d4f5fe4547750 Ben Straub <bstraub@github.com> 1335806603 -0900 commit:
a65fedf39aefe402d3bb6e24df4d4f5fe4547750 c47800c7266a2be04c571c04d5a6614691ea99bd Ben Straub <bstraub@github.com> 1335806608 -0900 checkout: moving from master to br2
c47800c7266a2be04c571c04d5a6614691ea99bd a4a7dce85cf63874e984719f4fdd239f5145052f Ben Straub <bstraub@github.com> 1335806617 -0900 commit: checking in
a4a7dce85cf63874e984719f4fdd239f5145052f a65fedf39aefe402d3bb6e24df4d4f5fe4547750 Ben Straub <bstraub@github.com> 1335806621 -0900 checkout: moving from br2 to master
tests-clar/resources/testrepo.git/logs/refs/heads/br2 0 → 100644
0000000000000000000000000000000000000000 c47800c7266a2be04c571c04d5a6614691ea99bd Ben Straub <bstraub@github.com> 1335806608 -0700 branch: Created from refs/remotes/origin/br2
a4a7dce85cf63874e984719f4fdd239f5145052f a4a7dce85cf63874e984719f4fdd239f5145052f Ben Straub <bstraub@github.com> 1335806617 -0700 commit: checking in
tests-clar/resources/testrepo.git/logs/refs/heads/master 0 → 100644
0000000000000000000000000000000000000000 be3563ae3f795b2b4353bcce3a527ad0a4f7f644 Ben Straub <bstraub@github.com> 1335806563 -0800 clone: from /Users/ben/src/libgit2/tests/resources/testrepo.git
be3563ae3f795b2b4353bcce3a527ad0a4f7f644 a65fedf39aefe402d3bb6e24df4d4f5fe4547750 Ben Straub <bstraub@github.com> 1335806603 -0800 commit: checking in
tests-clar/resources/testrepo.git/logs/refs/heads/not-good 0 → 100644
0000000000000000000000000000000000000000 a65fedf39aefe402d3bb6e24df4d4f5fe4547750 Ben Straub <bstraub@github.com> 1336761944 -0700 branch: Created from master
tests-clar/resources/testrepo.git/logs/refs/remotes/origin/HEAD 0 → 100644
0000000000000000000000000000000000000000 be3563ae3f795b2b4353bcce3a527ad0a4f7f644 Ben Straub <bstraub@github.com> 1335806563 -0700 clone: from /Users/ben/src/libgit2/tests/resources/testrepo.git
tests-clar/resources/testrepo.git/refs/heads/not-good 0 → 100644
a65fedf39aefe402d3bb6e24df4d4f5fe4547750
tests-clar/resources/testrepo.git/refs/remotes/test/master 0 → 100644
be3563ae3f795b2b4353bcce3a527ad0a4f7f644
tests-clar/resources/testrepo.git/refs/tags/hard_tag 0 → 100644
849a5e34a26815e821f865b8479f5815a47af0fe
tests-clar/resources/testrepo.git/refs/tags/wrapped_tag 0 → 100644
849a5e34a26815e821f865b8479f5815a47af0fe
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