Merge branch 'master' into lt/apply

* master: (40 commits)
  Clean up sha1 file writing
  Builtin git-cat-file
  builtin format-patch: squelch content-type for 7-bit ASCII
  CMIT_FMT_EMAIL: Q-encode Subject: and display-name part of From: fields.
  add more informative error messages to git-mktag
  remove the artificial restriction tagsize < 8kb
  git-rebase: use canonical A..B syntax to format-patch
  git-format-patch: now built-in.
  fmt-patch: Support --attach
  fmt-patch: understand old <his> notation
  Teach fmt-patch about --keep-subject
  Teach fmt-patch about --numbered
  fmt-patch: implement -o <dir>
  fmt-patch: output file names to stdout
  Teach fmt-patch to write individual files.
  Use RFC2822 dates from "git fmt-patch".
  git-fmt-patch: thinkofix to show [PATCH] properly.
  rename internal format-patch wip
  Minor tweak on subject line in --pretty=email
  Tentative built-in format-patch.
  ...

1 files changed, 25 insertions, 4 deletions

diff --git a/date.c b/date.c
index 034d7228bf..365dc3b14e 100644
--- a/date.c
+++ b/date.c
@@ -42,18 +42,24 @@ static const char *weekday_names[] = {
  * thing, which means that tz -0100 is passed in as the integer -100,
  * even though it means "sixty minutes off"
  */
-const char *show_date(unsigned long time, int tz)
+static struct tm *time_to_tm(unsigned long time, int tz)
 {
-	struct tm *tm;
 	time_t t;
-	static char timebuf[200];
 	int minutes;
 
 	minutes = tz < 0 ? -tz : tz;
 	minutes = (minutes / 100)*60 + (minutes % 100);
 	minutes = tz < 0 ? -minutes : minutes;
 	t = time + minutes * 60;
-	tm = gmtime(&t);
+	return gmtime(&t);
+}
+
+const char *show_date(unsigned long time, int tz)
+{
+	struct tm *tm;
+	static char timebuf[200];
+
+	tm = time_to_tm(time, tz);
 	if (!tm)
 		return NULL;
 	sprintf(timebuf, "%.3s %.3s %d %02d:%02d:%02d %d %+05d",
@@ -65,6 +71,21 @@ const char *show_date(unsigned long time, int tz)
 	return timebuf;
 }
 
+const char *show_rfc2822_date(unsigned long time, int tz)
+{
+	struct tm *tm;
+	static char timebuf[200];
+
+	tm = time_to_tm(time, tz);
+	if (!tm)
+		return NULL;
+	sprintf(timebuf, "%.3s, %d %.3s %d %02d:%02d:%02d %+05d",
+		weekday_names[tm->tm_wday], tm->tm_mday,
+		month_names[tm->tm_mon], tm->tm_year + 1900,
+		tm->tm_hour, tm->tm_min, tm->tm_sec, tz);
+	return timebuf;
+}
+
 /*
  * Check these. And note how it doesn't do the summer-time conversion.
  *