From: Heiko Voigt <git-list@hvoigt.net>
To: Michael Haggerty <mhagger@alum.mit.edu>,
Junio C Hamano <gitster@pobox.com>,
ydirson@altern.org
Cc: git@vger.kernel.org
Subject: [CVSPS PATCH] fix: correct rev order in case commiters clocks were not syncronised
Date: Mon, 09 Mar 2009 12:26:18 +0100 [thread overview]
Message-ID: <49B4FCDA.4030106@hvoigt.net> (raw)
In-Reply-To: <49AC1E88.1010709@hvoigt.net>
This fixes the following kind of cvsps issues:
Structure of the test cvs repository
Message File:Content Commit Time
Rev 1 a: 1.1 2009-02-21 19:11:43 +0100
Rev 2 a: 1.2 b: 1.1 2009-02-21 19:11:14 +0100
Rev 3 b: 1.2 2009-02-21 19:11:43 +0100
As you can see the commit of Rev 3 has the same time as
Rev 1 this was leading to a broken estimation of patchset
order.
Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
---
After precisely formulating my problem with cvsps I was curious if this
issue actually could be fixed. Additionally I don't want my test to be
disabled ;). This patch seems to fix it. Is Yann still maintaining the
patches for cvsps or should I forward this patch to someone else ?
Calculating with time_t like I did is probably not valid on all systems
if you know of a nicer, more portable solution please let me know.
cvsps.c | 40 ++++++++++++++++++++++++++++++++++++++++
1 files changed, 40 insertions(+), 0 deletions(-)
diff --git a/cvsps.c b/cvsps.c
index 81c6e21..d5c30d4 100644
--- a/cvsps.c
+++ b/cvsps.c
@@ -259,6 +259,32 @@ int main(int argc, char *argv[])
exit(0);
}
+void detect_and_repair_time_skew(const char *last_date, char *date, int n,
+ const char *filename)
+{
+
+ time_t smaller;
+ time_t bigger;
+ struct tm *ts;
+
+ /* if last_date does not exist do nothing */
+ if (last_date[0] == '\0')
+ return;
+
+ /* important: because rlog is showing revisions backwards last_date should
+ * always be bigger than date */
+ convert_date(&bigger, last_date);
+ convert_date(&smaller, date);
+
+ if (difftime(bigger, smaller) <= 0) {
+ debug(DEBUG_APPMSG1, "broken revision date: %s -> %s file: %s, repairing.\n",
+ date, last_date, filename);
+ smaller = bigger - 1;
+ ts = gmtime(&smaller);
+ strftime(date, n, "%Y-%m-%d %H:%M:%S", ts);
+ }
+}
+
static void load_from_cvs()
{
FILE * cvsfp;
@@ -267,6 +293,7 @@ static void load_from_cvs()
CvsFile * file = NULL;
PatchSetMember * psm = NULL;
char datebuff[20];
+ char last_datebuff[20];
char authbuff[AUTH_STR_MAX];
int logbufflen = LOG_STR_MAX + 1;
char * logbuff = malloc(logbufflen);
@@ -334,6 +361,8 @@ static void load_from_cvs()
exit(1);
}
+ /* initialize the last_datebuff with value indicating invalid date */
+ last_datebuff[0]='\0';
for (;;)
{
char * tst;
@@ -474,8 +503,14 @@ static void load_from_cvs()
{
if (psm)
{
+ detect_and_repair_time_skew(last_datebuff, datebuff, 20, psm->file->filename);
PatchSet * ps = get_patch_set(datebuff, logbuff, authbuff, psm->post_rev->branch, psm);
patch_set_add_member(ps, psm);
+
+ /* remember last revision */
+ strncpy(last_datebuff, datebuff, 20);
+ /* just to be sure */
+ last_datebuff[19] = '\0';
}
logbuff[0] = 0;
@@ -487,8 +522,13 @@ static void load_from_cvs()
{
if (psm)
{
+ detect_and_repair_time_skew(last_datebuff, datebuff, 20, psm->file->filename);
PatchSet * ps = get_patch_set(datebuff, logbuff, authbuff, psm->post_rev->branch, psm);
patch_set_add_member(ps, psm);
+
+ /* just finished the last revision of this file, set last_datebuff to invalid */
+ last_datebuff[0]='\0';
+
assign_pre_revision(psm, NULL);
}
next prev parent reply other threads:[~2009-03-09 11:27 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-23 18:49 [PATCH] cvsimport: add test illustrating a bug in cvsps Heiko Voigt
2009-02-23 20:35 ` Heiko Voigt
2009-02-24 5:00 ` Michael Haggerty
2009-03-02 17:59 ` [PATCH v2 0/1] " Heiko Voigt
2009-03-02 17:59 ` [PATCH v2 1/1] " Heiko Voigt
2009-03-09 11:26 ` Heiko Voigt [this message]
2009-03-09 15:02 ` [CVSPS PATCH] fix: correct rev order in case commiters clocks were not syncronised Michael Haggerty
2009-03-18 17:33 ` [PATCH v3 0/2] cvsimport: add test illustrating a bug in cvsps Heiko Voigt
2009-03-18 18:22 ` Junio C Hamano
2009-03-19 10:41 ` Michael J Gruber
2009-03-19 11:00 ` Johannes Schindelin
2009-03-19 11:22 ` Michael J Gruber
2009-03-21 5:41 ` Michael Haggerty
2009-03-23 18:11 ` started a cvsps testsuite Was: " Heiko Voigt
2009-03-23 19:06 ` Martin Langhoff
2009-03-24 4:50 ` Michael Haggerty
2009-04-06 19:01 ` Heiko Voigt
2009-03-23 17:47 ` Heiko Voigt
2009-03-18 17:33 ` [PATCH v3 1/2] " Heiko Voigt
2009-03-18 17:33 ` [PATCH v3 2/2] cvsimport: extend testcase about patchset order to contain branches Heiko Voigt
2009-03-18 17:34 ` [CVSPS PATCH v2] fix: correct rev order in case commiters clocks were not syncronised Heiko Voigt
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