mailinfo and applymbox updates

This attempts to minimally cope with a subset of MIME "features" often
seen in patches sent to our mailing lists.  Namely:

 - People's name spelled in characters outside ASCII (both on From:
   header and the signed-off-by line).

 - Content-transfer-encoding using quoted-printable (both in
   multipart and non-multipart messages).

These MIME features are detected and decoded by "git mailinfo".

Optionally, with the '-u' flag, the output to .info and .msg is
transliterated from its original chaset to utf-8.  This is to
encourage people to use utf8 in their commit messages for
interoperability.

Applymbox accepts additional flag '-u' which is passed to mailinfo.

Signed-off-by: Junio C Hamano / 濱野 純 <junkio@cox.net>

1 files changed, 9 insertions, 3 deletions

diff --git a/tools/git-applymbox b/tools/git-applymbox
index afcb00a3f5..2b32dab5f5 100755
--- a/tools/git-applymbox
+++ b/tools/git-applymbox
@@ -9,7 +9,7 @@
 ## You give it a mbox-format collection of emails, and it will try to
 ## apply them to the kernel using "applypatch"
 ##
-## applymbox [ -k ] [ -q ] (-c .dotest/msg-number | mail_archive) [Signoff_file]"
+## applymbox [-u] [-k] [-q] (-c .dotest/msg-number | mail_archive) [Signoff_file]"
 ##
 ## The patch application may fail in the middle.  In which case:
 ## (1) look at .dotest/patch and fix it up to apply
@@ -20,10 +20,16 @@
 
 . git-sh-setup-script || die "Not a git archive"
 
-keep_subject= query_apply= continue= resume=t
+usage () {
+    echo >&2 "applymbox [-u] [-k] [-q] (-c .dotest/<num> | mbox) [signoff]"
+    exit 1
+}
+
+keep_subject= query_apply= continue= utf8= resume=t
 while case "$#" in 0) break ;; esac
 do
 	case "$1" in
+	-u)	utf8=-u ;;
 	-k)	keep_subject=-k ;;
 	-q)	query_apply=t ;;
 	-c)	continue="$2"; resume=f; shift ;;
@@ -64,7 +70,7 @@ do
     f,$i)	resume=t;;
     f,*)	continue;;
     *)
-	    git-mailinfo $keep_subject \
+	    git-mailinfo $keep_subject $utf8 \
 		.dotest/msg .dotest/patch <$i >.dotest/info || exit 1
 	    git-stripspace < .dotest/msg > .dotest/msg-clean
 	    ;;