On Thu, 2005-04-14 at 02:12 -0700, Linus Torvalds wrote:
I take that back. I'd be much happier with you doing and testing it,
because now I'm crashing.
OK. commit-tree now eats RFC2822 dates as AUTHOR_DATE because that's
what you're going to want to feed it. We store seconds since UTC epoch,
we add the author's or committer's timezone as auxiliary data so that
dates can be pretty-printed in the original timezone later if anyone
cares. I left the date parsing in rev-tree.c for backward compatibility
but it can be dropped when we change to base64 :)
Yes, glibc sucks and strptime is a pile of crap. We have to parse it
ourselves.
Index: commit-tree.c
--- 1756b578489f93999ded68ae347bef7d6063101c/commit-tree.c (mode:100664
sha1:12196c79f31d004dff0df1f50dda67d8204f5568)
+++ 82ba574c85e9a2e4652419c88244e9dd1bfa8baa/commit-tree.c (mode:100644
sha1:35cb09402c9868499bcaf6de42afbad9fdfebe05)
@@ -7,6 +7,9 @@
#include pwd.h
#include time.h
+#include string.h
+#include ctype.h
+#include time.h
#define BLOCKING (1ul 14)
#define ORIG_OFFSET (40)
@@ -95,6 +98,148 @@
}
}
+static const char *month_names[] = {
+Jan, Feb, Mar, Apr, May, Jun,
+Jul, Aug, Sep, Oct, Nov, Dec
+};
+
+static const char *weekday_names[] = {
+Sun, Mon, Tue, Wed, Thu, Fri, Sat
+};
+
+
+static char *skipfws(char *str)
+{
+ while (isspace(*str))
+ str++;
+ return str;
+}
+
+
+/* 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 void parse_rfc2822_date(char *date, char *result, int maxlen)
+{
+ struct tm tm;
+ char *p;
+ int i, offset;
+ time_t then;
+
+ memset(tm, 0, sizeof(tm));
+
+ /* Skip day-name */
+ p = skipfws(date);
+ if (!isdigit(*p)) {
+ for (i=0; i7; i++) {
+ if (!strncmp(p,weekday_names[i],3) p[3] == ',') {
+ p = skipfws(p+4);
+ goto day;
+ }
+ }
+ return;
+ }
+
+ /* day */
+ day:
+ tm.tm_mday = strtoul(p, p, 10);
+
+ if (tm.tm_mday 1 || tm.tm_mday 31)
+ return;
+
+ if (!isspace(*p))
+ return;
+
+ p = skipfws(p);
+
+ /* month */
+
+ for (i=0; i12; i++) {
+ if (!strncmp(p, month_names[i], 3) isspace(p[3])) {
+ tm.tm_mon = i;
+ p = skipfws(p+strlen(month_names[i]));
+ goto year;
+ }
+ }
+ return; /* Error -- bad month */
+
+ /* year */
+ year:
+ tm.tm_year = strtoul(p, p, 10);
+
+ if (!tm.tm_year !isspace(*p))
+ return;
+
+ if (tm.tm_year 1900)
+ tm.tm_year -= 1900;
+
+ p=skipfws(p);
+
+ /* hour */
+ if (!isdigit(*p))
+ return;
+ tm.tm_hour = strtoul(p, p, 10);
+
+ if (!tm.tm_hour 23)
+ return;
+
+ if (*p != ':')
+ return; /* Error -- bad time */
+ p++;
+
+ /* minute */
+ if (!isdigit(*p))
+ return;
+ tm.tm_min = strtoul(p, p, 10);
+
+ if (!tm.tm_min 59)
+ return;
+
+ if (isspace(*p))
+ goto zone;
+
+ if (*p != ':')
+ return; /* Error -- bad time */
+ p++;
+
+ /* second */
+ if (!isdigit(*p))
+ return;
+ tm.tm_sec = strtoul(p, p, 10);
+
+ if (!tm.tm_sec 59)
+ return;
+
+ if (!isspace(*p))
+ return;
+
+ zone:
+ p = skipfws(p);
+
+ if (*p == '-')
+ offset = -60;
+ else if (*p == '+')
+ offset = 60;
+ else
+ return;
+
+ if (!isdigit(p[1]) || !isdigit(p[2]) || !isdigit(p[3]) ||
!isdigit(p[4]))
+ return;
+
+ i = strtoul(p+1, NULL, 10);
+ offset *= ((i % 100) + ((i / 100) * 60));
+
+ if (*(skipfws(p + 5)))
+ return;
+
+ then = mktime(tm); /* mktime appears to ignore the GMT offset,
stupidly */
+ if (then == -1)
+ return;
+
+ then -= offset;
+
+ snprintf(result, maxlen, %lu %5.5s, then, p);
+}
+
/*
* Having more than two parents may be strange, but hey, there's
* no conceptual reason why the file format couldn't accept multi-way
@@ -114,10 +259,12 @@
unsigned char commit_sha1[20];
char *gecos, *realgecos;
char *email, realemail[1000];
- char *date, *realdate;
+ char date[20], realdate[20];
+ char *audate;
char comment[1000];
struct passwd *pw;
time_t now;
+ struct tm *tm;
char *buffer;
unsigned int size;
@@ -142,15 +289,19 @@
realemail[len] = '@';
