$ fixheaders()

  > {

  >     sed -e 's/\(Message-Id:.*@\).*/\1/'  \

  >         -e 's/\(In-Reply-To:.*@\).*/\1/' \

  >         -e 's/\(References:.*@\).*/\1/'  \

  >         -e 's/\(User-Agent:.*\)\/.*/\1/'  \

  >         -e 's/===.*/===/'

  > }

  $ echo "[extensions]" >> $HGRCPATH

  $ echo "patchbomb=" >> $HGRCPATH

  $ hg init t

  $ cd t

  $ echo a > a

  $ hg commit -Ama -d '1 0'

  adding a

  $ hg email --date '1970-1-1 0:1' -n -f quux -t foo -c bar -r tip

  This patch series consists of 1 patches.

  Displaying [PATCH] a ...

  Content-Type: text/plain; charset="us-ascii"

  MIME-Version: 1.0

  Content-Transfer-Encoding: 7bit

  Subject: [PATCH] a

  X-Mercurial-Node: 8580ff50825a50c8f716709acdf8de0deddcd6ab

  Message-Id: <8580ff50825a50c8f716.60@* (glob)

  User-Agent: Mercurial-patchbomb/* (glob)

  Date: Thu, 01 Jan 1970 00:01:00 +0000

  From: quux

  To: foo

  Cc: bar

  # HG changeset patch

  # User test

  # Date 1 0

  # Node ID 8580ff50825a50c8f716709acdf8de0deddcd6ab

  # Parent  0000000000000000000000000000000000000000

  a

  diff -r 000000000000 -r 8580ff50825a a

  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000

  +++ b/a	Thu Jan 01 00:00:01 1970 +0000

  @@ -0,0 +1,1 @@

  +a

  $ hg --config ui.interactive=1 email --confirm -n -f quux -t foo -c bar -r tip<<EOF

  > n

  > EOF

  This patch series consists of 1 patches.

  Final summary:

  From: quux

  To: foo

  Cc: bar

  Subject: [PATCH] a

   a |  1 +

   1 files changed, 1 insertions(+), 0 deletions(-)

  are you sure you want to send (yn)? abort: patchbomb canceled

  [255]

  $ echo b > b

  $ hg commit -Amb -d '2 0'

  adding b

  $ hg email --date '1970-1-1 0:2' -n -f quux -t foo -c bar -s test -r 0:tip

  This patch series consists of 2 patches.

  Write the introductory message for the patch series.

  Displaying [PATCH 0 of 2] test ...

  Content-Type: text/plain; charset="us-ascii"

  MIME-Version: 1.0

  Content-Transfer-Encoding: 7bit

  Subject: [PATCH 0 of 2] test

  Message-Id: <patchbomb\.120@[^>]*> (re)

  User-Agent: Mercurial-patchbomb/* (glob)

  Date: Thu, 01 Jan 1970 00:02:00 +0000

  From: quux

  To: foo

  Cc: bar

  Displaying [PATCH 1 of 2] a ...

  Content-Type: text/plain; charset="us-ascii"

  MIME-Version: 1.0

  Content-Transfer-Encoding: 7bit

  Subject: [PATCH 1 of 2] a

  X-Mercurial-Node: 8580ff50825a50c8f716709acdf8de0deddcd6ab

  Message-Id: <8580ff50825a50c8f716\.121@[^>]*> (re)

  In-Reply-To: <patchbomb\.120@[^>]*> (re)

  References: <patchbomb\.120@[^>]*> (re)

  User-Agent: Mercurial-patchbomb/* (glob)

  Date: Thu, 01 Jan 1970 00:02:01 +0000

  From: quux

  To: foo

  Cc: bar

  # HG changeset patch

  # User test

  # Date 1 0

  # Node ID 8580ff50825a50c8f716709acdf8de0deddcd6ab

  # Parent  0000000000000000000000000000000000000000

  a

  diff -r 000000000000 -r 8580ff50825a a

  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000

  +++ b/a	Thu Jan 01 00:00:01 1970 +0000

  @@ -0,0 +1,1 @@

  +a

  Displaying [PATCH 2 of 2] b ...

  Content-Type: text/plain; charset="us-ascii"

  MIME-Version: 1.0

  Content-Transfer-Encoding: 7bit

  Subject: [PATCH 2 of 2] b

  X-Mercurial-Node: 97d72e5f12c7e84f85064aa72e5a297142c36ed9

  Message-Id: <97d72e5f12c7e84f8506\.122@[^>]*> (re)

  In-Reply-To: <patchbomb\.120@[^>]*> (re)

  References: <patchbomb\.120@[^>]*> (re)

  User-Agent: Mercurial-patchbomb/* (glob)

  Date: Thu, 01 Jan 1970 00:02:02 +0000

  From: quux

  To: foo

  Cc: bar

  # HG changeset patch

  # User test

  # Date 2 0

  # Node ID 97d72e5f12c7e84f85064aa72e5a297142c36ed9

  # Parent  8580ff50825a50c8f716709acdf8de0deddcd6ab

  b

  diff -r 8580ff50825a -r 97d72e5f12c7 b

  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000

  +++ b/b	Thu Jan 01 00:00:02 1970 +0000

  @@ -0,0 +1,1 @@

  +b

.hg/last-email.txt

  $ cat > editor << '__EOF__'

  > #!/bin/sh

  > echo "a precious introductory message" > "$1"

  > __EOF__

  $ chmod +x editor

  $ HGEDITOR="'`pwd`'"/editor hg email -n -t foo -s test -r 0:tip > /dev/null

  $ cat .hg/last-email.txt

  a precious introductory message

  $ hg email -m test.mbox -f quux -t foo -c bar -s test 0:tip \

  > --config extensions.progress= --config progress.assume-tty=1 \

  > --config progress.delay=0 --config progress.refresh=0 \

  > --config progress.width=60 2>&1 | \

  > python $TESTDIR/filtercr.py

  This patch series consists of 2 patches.

  Write the introductory message for the patch series.

  writing [                                             ] 0/3

  writing [                                             ] 0/3

  writing [==============>                              ] 1/3

  writing [==============>                              ] 1/3

  writing [=============================>               ] 2/3

  writing [=============================>               ] 2/3

                                                              \r (esc)

  Writing [PATCH 0 of 2] test ...

  Writing [PATCH 1 of 2] a ...

  Writing [PATCH 2 of 2] b ...

  $ cd ..

  $ hg clone -q t t2

  $ cd t2

  $ echo c > c

  $ hg commit -Amc -d '3 0'

  adding c

  $ cat > description <<EOF

  > a multiline

  > 

  > description

  > EOF

test bundle and description:

  $ hg email --date '1970-1-1 0:3' -n -f quux -t foo \

  >  -c bar -s test -r tip -b --desc description | fixheaders

  searching for changes

  1 changesets found

  Displaying test ...

  Content-Type: multipart/mixed; boundary="===

  MIME-Version: 1.0

  Subject: test

  Message-Id: <patchbomb.180@

  User-Agent: Mercurial-patchbomb

  Date: Thu, 01 Jan 1970 00:03:00 +0000

  From: quux

  To: foo

  Cc: bar

  --===

  Content-Type: text/plain; charset="us-ascii"

  MIME-Version: 1.0

  Content-Transfer-Encoding: 7bit

  a multiline

  description

  --===

  Content-Type: application/x-mercurial-bundle

  MIME-Version: 1.0

  Content-Disposition: attachment; filename="bundle.hg"

  Content-Transfer-Encoding: base64

  SEcxMEJaaDkxQVkmU1nvR7I3AAAN////lFYQWj1/4HwRkdC/AywIAk0E4pfoSIIIgQCgGEQOcLAA

  2tA1VPyp4mkeoG0EaaPU0GTT1GjRiNPIg9CZGBqZ6UbU9J+KFU09DNUaGgAAAAAANAGgAAAAA1U8

  oGgAADQGgAANNANAAAAAAZipFLz3XoakCEQB3PVPyHJVi1iYkAAKQAZQGpQGZESInRnCFMqLDla2

  Bx3qfRQeA2N4lnzKkAmP8kR2asievLLXXebVU8Vg4iEBqcJNJAxIapSU6SM4888ZAciRG6MYAIEE

  SlIBpFisgGkyRjX//TMtfcUAEsGu56+YnE1OlTZmzKm8BSu2rvo4rHAYYaadIFFuTy0LYgIkgLVD

  sgVa2F19D1tx9+hgbAygLgQwaIqcDdgA4BjQgIiz/AEP72++llgDKhKducqodGE4B0ETqF3JFOFC

  Q70eyNw=

  --===

utf-8 patch:

  $ python -c 'fp = open("utf", "wb"); fp.write("h\xC3\xB6mma!\n"); fp.close();'

  $ hg commit -A -d '4 0' -m 'charset=utf-8; content-transfer-encoding: base64'

  adding description

  adding utf

no mime encoding for email --test:

  $ hg email --date '1970-1-1 0:4' -f quux -t foo -c bar -r tip -n | fixheaders > mailtest

md5sum of 8-bit output:

  $ $TESTDIR/md5sum.py mailtest

  e726c29b3008e77994c7572563e57c34  mailtest

  $ rm mailtest

mime encoded mbox (base64):

  $ hg email --date '1970-1-1 0:4' -f quux -t foo -c bar -r tip -m mbox

  This patch series consists of 1 patches.

  Writing [PATCH] charset=utf-8; content-transfer-encoding: base64 ...

  $ cat mbox

  From quux Thu Jan 01 00:04:01 1970

  Content-Type: text/plain; charset="utf-8"

  MIME-Version: 1.0

  Content-Transfer-Encoding: base64

  Subject: [PATCH] charset=utf-8; content-transfer-encoding: base64

  X-Mercurial-Node: c3c9e37db9f4fe4882cda39baf42fed6bad8b15a

  Message-Id: <c3c9e37db9f4fe4882cd.240@* (glob)

  User-Agent: Mercurial-patchbomb/* (glob)

  Date: Thu, 01 Jan 1970 00:04:00 +0000

  From: quux

  To: foo

  Cc: bar

  IyBIRyBjaGFuZ2VzZXQgcGF0Y2gKIyBVc2VyIHRlc3QKIyBEYXRlIDQgMAojIE5vZGUgSUQgYzNj

  OWUzN2RiOWY0ZmU0ODgyY2RhMzliYWY0MmZlZDZiYWQ4YjE1YQojIFBhcmVudCAgZmYyYzlmYTIw

  MThiMTVmYTc0YjMzMzYzYmRhOTUyNzMyM2UyYTk5ZgpjaGFyc2V0PXV0Zi04OyBjb250ZW50LXRy

  YW5zZmVyLWVuY29kaW5nOiBiYXNlNjQKCmRpZmYgLXIgZmYyYzlmYTIwMThiIC1yIGMzYzllMzdk

  YjlmNCBkZXNjcmlwdGlvbgotLS0gL2Rldi9udWxsCVRodSBKYW4gMDEgMDA6MDA6MDAgMTk3MCAr

  MDAwMAorKysgYi9kZXNjcmlwdGlvbglUaHUgSmFuIDAxIDAwOjAwOjA0IDE5NzAgKzAwMDAKQEAg

  LTAsMCArMSwzIEBACithIG11bHRpbGluZQorCitkZXNjcmlwdGlvbgpkaWZmIC1yIGZmMmM5ZmEy

  MDE4YiAtciBjM2M5ZTM3ZGI5ZjQgdXRmCi0tLSAvZGV2L251bGwJVGh1IEphbiAwMSAwMDowMDow

  MCAxOTcwICswMDAwCisrKyBiL3V0ZglUaHUgSmFuIDAxIDAwOjAwOjA0IDE5NzAgKzAwMDAKQEAg

  LTAsMCArMSwxIEBACitow7ZtbWEhCg==

  $ rm mbox

mime encoded mbox (quoted-printable):

  $ python -c 'fp = open("qp", "wb"); fp.write("%s\nfoo\n\nbar\n" % ("x" * 1024)); fp.close();'

  $ hg commit -A -d '4 0' -m 'charset=utf-8; content-transfer-encoding: quoted-printable'

  adding qp

no mime encoding for email --test:

  $ hg email --date '1970-1-1 0:4' -f quux -t foo -c bar -r tip -n | \

  >  fixheaders > mailtest

md5sum of qp output:

  $ $TESTDIR/md5sum.py mailtest

  0402c7d033e04044e423bb04816f9dae  mailtest

  $ rm mailtest

mime encoded mbox (quoted-printable):

  $ hg email --date '1970-1-1 0:4' -f quux -t foo -c bar -r tip -m mbox

  This patch series consists of 1 patches.

  Writing [PATCH] charset=utf-8; content-transfer-encoding: quoted-printable ...

  $ cat mbox | fixheaders

  From quux Thu Jan 01 00:04:01 1970

  Content-Type: text/plain; charset="us-ascii"

  MIME-Version: 1.0

  Content-Transfer-Encoding: quoted-printable

  Subject: [PATCH] charset=utf-8; content-transfer-encoding: quoted-printable

  X-Mercurial-Node: c655633f8c87700bb38cc6a59a2753bdc5a6c376

  Message-Id: <c655633f8c87700bb38c.240@

  User-Agent: Mercurial-patchbomb

  Date: Thu, 01 Jan 1970 00:04:00 +0000

  From: quux

  To: foo

  Cc: bar

  # HG changeset patch

  # User test

  # Date 4 0

  # Node ID c655633f8c87700bb38cc6a59a2753bdc5a6c376

  # Parent  c3c9e37db9f4fe4882cda39baf42fed6bad8b15a

  charset=3Dutf-8; content-transfer-encoding: quoted-printable

  diff -r c3c9e37db9f4 -r c655633f8c87 qp

  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000

  +++ b/qp	Thu Jan 01 00:00:04 1970 +0000

  @@ -0,0 +1,4 @@

  +xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=

  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=

  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=

  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=

  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=

  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=

  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=

  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=

  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=

  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=

  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=

  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=

  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=

  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

  +foo

  +

  +bar

  $ rm mbox

iso-8859-1 patch:

  $ python -c 'fp = open("isolatin", "wb"); fp.write("h\xF6mma!\n"); fp.close();'

  $ hg commit -A -d '5 0' -m 'charset=us-ascii; content-transfer-encoding: 8bit'

  adding isolatin

fake ascii mbox:

  $ hg email --date '1970-1-1 0:5' -f quux -t foo -c bar -r tip -m mbox

  This patch series consists of 1 patches.

  Writing [PATCH] charset=us-ascii; content-transfer-encoding: 8bit ...

  $ fixheaders < mbox > mboxfix