view tests/test-mq-header-date.t @ 36426:23d12524a202

http: drop custom http client logic

Eight and a half years ago, as my starter bug on code.google.com, I
investigated a mysterious "broken pipe" error from seemingly random
clients[0]. That investigation revealed a tragic story: the Python
standard library's httplib was (and remains) barely functional. During
large POSTs, if a server responds early with an error (even a
permission denied error!) the client only notices that the server
closed the connection and everything breaks. Such server behavior is
implicitly legal under RFC 2616 (the latest HTTP RFC as of when I was
last working on this), and my understanding is that later RFCs have
made it explicitly legal to respond early with any status code outside
the 2xx range.

I embarked, probably foolishly, on a journey to write a new http
library with better overall behavior. The http library appears to work
well in most cases, but it can get confused in the presence of
proxies, and it depends on select(2) which limits its utility if a lot
of file descriptors are open. I haven't touched the http library in
almost two years, and in the interim the Python community has
discovered a better way[1] of writing network code. In theory some day
urllib3 will have its own home-grown http library built on h11[2], or
we could do that. Either way, it's time to declare our current
confusingly-named "http2" client logic and move on. I do hope to
revisit this some day: it's still garbage that we can't even respond
with a 401 or 403 without reading the entire POST body from the
client, but the goalposts on writing a new http client library have
moved substantially. We're almost certainly better off just switching
to requests and eventually picking up their http fixes than trying to
live with something that realistically only we'll ever use. Another
approach would be to write an adapter so that Mercurial can use pycurl
if it's installed. Neither of those approaches seem like they should
be investigated prior to a release of Mercurial that works on Python
3: that's where the mindshare is going to be for any improvements to
the state of the http client art.

0: http://web.archive.org/web/20130501031801/http://code.google.com/p/support/issues/detail?id=2716
1: http://sans-io.readthedocs.io/
2: https://github.com/njsmith/h11

Differential Revision: https://phab.mercurial-scm.org/D2444

  $ cat <<EOF >> $HGRCPATH
  > [extensions]
  > mq =
  > [diff]
  > nodates = true
  > EOF
  $ catpatch() {
  >     cat .hg/patches/$1.patch | sed -e "s/^diff \-r [0-9a-f]* /diff -r ... /" \
  >                                    -e "s/^\(# Parent \).*/\1/"
  > }
  $ catlog() {
  >     catpatch $1
  >     hg log --template "{rev}: {node|short} {desc} - {author}\n"
  > }
  $ catlogd() {
  >     catpatch $1
  >     hg log --template "{rev}: {node|short} {desc} - {author} - {date}\n"
  > }
  $ drop() {
  >     hg qpop
  >     hg qdel $1.patch
  > }
  $ runtest() {
  >     echo ==== init
  >     hg init a
  >     cd a
  >     hg qinit
  > 
  > 
  >     echo ==== qnew -d
  >     hg qnew -d '3 0' 1.patch
  >     catlogd 1
  > 
  >     echo ==== qref
  >     echo "1" >1
  >     hg add
  >     hg qref
  >     catlogd 1
  > 
  >     echo ==== qref -d
  >     hg qref -d '4 0'
  >     catlogd 1
  > 
  > 
  >     echo ==== qnew
  >     hg qnew 2.patch
  >     echo "2" >2
  >     hg add
  >     hg qref
  >     catlog 2
  > 
  >     echo ==== qref -d
  >     hg qref -d '5 0'
  >     catlog 2
  > 
  >     drop 2
  > 
  > 
  >     echo ==== qnew -d -m
  >     hg qnew -d '6 0' -m "Three" 3.patch
  >     catlogd 3
  > 
  >     echo ==== qref
  >     echo "3" >3
  >     hg add
  >     hg qref
  >     catlogd 3
  > 
  >     echo ==== qref -m
  >     hg qref -m "Drei"
  >     catlogd 3
  > 
  >     echo ==== qref -d
  >     hg qref -d '7 0'
  >     catlogd 3
  > 
  >     echo ==== qref -d -m
  >     hg qref -d '8 0' -m "Three (again)"
  >     catlogd 3
  > 
  > 
  >     echo ==== qnew -m
  >     hg qnew -m "Four" 4.patch
  >     echo "4" >4
  >     hg add
  >     hg qref
  >     catlog 4
  > 
  >     echo ==== qref -d
  >     hg qref -d '9 0'
  >     catlog 4
  > 
  >     drop 4
  > 
  > 
  >     echo ==== qnew with HG header
  >     hg qnew --config 'mq.plain=true' 5.patch
  >     hg qpop
  >     echo "# HG changeset patch" >>.hg/patches/5.patch
  >     echo "# Date 10 0" >>.hg/patches/5.patch
  >     hg qpush 2>&1 | grep 'Now at'
  >     catlogd 5
  > 
  >     echo ==== hg qref
  >     echo "5" >5
  >     hg add
  >     hg qref
  >     catlogd 5
  > 
  >     echo ==== hg qref -d
  >     hg qref -d '11 0'
  >     catlogd 5
  > 
  > 
  >     echo ==== qnew with plain header
  >     hg qnew --config 'mq.plain=true' -d '12 0' 6.patch
  >     hg qpop
  >     hg qpush 2>&1 | grep 'now at'
  >     catlog 6
  > 
  >     echo ==== hg qref
  >     echo "6" >6
  >     hg add
  >     hg qref
  >     catlogd 6
  > 
  >     echo ==== hg qref -d
  >     hg qref -d '13 0'
  >     catlogd 6
  > 
  >     drop 6
  > 
  > 
  >     echo ==== qnew -u
  >     hg qnew -u jane 6.patch
  >     echo "6" >6
  >     hg add
  >     hg qref
  >     catlog 6
  > 
  >     echo ==== qref -d
  >     hg qref -d '12 0'
  >     catlog 6
  > 
  >     drop 6
  > 
  > 
  >     echo ==== qnew -d
  >     hg qnew -d '13 0' 7.patch
  >     echo "7" >7
  >     hg add
  >     hg qref
  >     catlog 7
  > 
  >     echo ==== qref -u
  >     hg qref -u john
  >     catlogd 7
  > 
  > 
  >     echo ==== qnew
  >     hg qnew 8.patch
  >     echo "8" >8
  >     hg add
  >     hg qref
  >     catlog 8
  > 
  >     echo ==== qref -u -d
  >     hg qref -u john -d '14 0'
  >     catlog 8
  > 
  >     drop 8
  > 
  > 
  >     echo ==== qnew -m
  >     hg qnew -m "Nine" 9.patch
  >     echo "9" >9
  >     hg add
  >     hg qref
  >     catlog 9
  > 
  >     echo ==== qref -u -d
  >     hg qref -u john -d '15 0'
  >     catlog 9
  > 
  >     drop 9
  > 
  > 
  >     echo ==== "qpop -a / qpush -a"
  >     hg qpop -a
  >     hg qpush -a
  >     hg log --template "{rev}: {node|short} {desc} - {author} - {date}\n"
  > }

======= plain headers

  $ echo "[mq]" >> $HGRCPATH
  $ echo "plain=true" >> $HGRCPATH
  $ mkdir sandbox
  $ (cd sandbox ; runtest)
  ==== init
  ==== qnew -d
  Date: 3 0
  
  0: 758bd2596a39 [mq]: 1.patch - test - 3.00
  ==== qref
  adding 1
  Date: 3 0
  
  diff -r ... 1
  --- /dev/null
  +++ b/1
  @@ -0,0 +1,1 @@
  +1
  0: 8c640e9949a8 [mq]: 1.patch - test - 3.00
  ==== qref -d
  Date: 4 0
  
  diff -r ... 1
  --- /dev/null
  +++ b/1
  @@ -0,0 +1,1 @@
  +1
  0: 4a67dfeea974 [mq]: 1.patch - test - 4.00
  ==== qnew
  adding 2
  diff -r ... 2
  --- /dev/null
  +++ b/2
  @@ -0,0 +1,1 @@
  +2
  1: fc7e8a2f6499 [mq]: 2.patch - test
  0: 4a67dfeea974 [mq]: 1.patch - test
  ==== qref -d
  Date: 5 0
  
  diff -r ... 2
  --- /dev/null
  +++ b/2
  @@ -0,0 +1,1 @@
  +2
  1: 1d9a6a118fd1 [mq]: 2.patch - test
  0: 4a67dfeea974 [mq]: 1.patch - test
  popping 2.patch
  now at: 1.patch
  ==== qnew -d -m
  Date: 6 0
  
  Three
  
  1: 2a9ef0bdefba Three - test - 6.00
  0: 4a67dfeea974 [mq]: 1.patch - test - 4.00
  ==== qref
  adding 3
  Date: 6 0
  
  Three
  
  diff -r ... 3
  --- /dev/null
  +++ b/3
  @@ -0,0 +1,1 @@
  +3
  1: 7f19ad9eea7b Three - test - 6.00
  0: 4a67dfeea974 [mq]: 1.patch - test - 4.00
  ==== qref -m
  Date: 6 0
  
  Drei
  
  diff -r ... 3
  --- /dev/null
  +++ b/3
  @@ -0,0 +1,1 @@
  +3
  1: 7ff7377793e3 Drei - test - 6.00
  0: 4a67dfeea974 [mq]: 1.patch - test - 4.00
  ==== qref -d
  Date: 7 0
  
  Drei
  
  diff -r ... 3
  --- /dev/null
  +++ b/3
  @@ -0,0 +1,1 @@
  +3
  1: d89d3144f518 Drei - test - 7.00
  0: 4a67dfeea974 [mq]: 1.patch - test - 4.00
  ==== qref -d -m
  Date: 8 0
  
  Three (again)
  
  diff -r ... 3
  --- /dev/null
  +++ b/3
  @@ -0,0 +1,1 @@
  +3
  1: b1b6b0fe0e6d Three (again) - test - 8.00
  0: 4a67dfeea974 [mq]: 1.patch - test - 4.00
  ==== qnew -m
  adding 4
  Four
  
  diff -r ... 4
  --- /dev/null
  +++ b/4
  @@ -0,0 +1,1 @@
  +4
  2: 74ded07d166b Four - test
  1: b1b6b0fe0e6d Three (again) - test
  0: 4a67dfeea974 [mq]: 1.patch - test
  ==== qref -d
  Date: 9 0
  
  Four
  
  diff -r ... 4
  --- /dev/null
  +++ b/4
  @@ -0,0 +1,1 @@
  +4
  2: 1a651320cf8e Four - test
  1: b1b6b0fe0e6d Three (again) - test
  0: 4a67dfeea974 [mq]: 1.patch - test
  popping 4.patch
  now at: 3.patch
  ==== qnew with HG header
  popping 5.patch
  now at: 3.patch
  # HG changeset patch
  # Date 10 0
  2: d16a272220d2 imported patch 5.patch - test - 10.00
  1: b1b6b0fe0e6d Three (again) - test - 8.00
  0: 4a67dfeea974 [mq]: 1.patch - test - 4.00
  ==== hg qref
  adding 5
  # HG changeset patch
  # Date 10 0
  # Parent 
  
  diff -r ... 5
  --- /dev/null
  +++ b/5
  @@ -0,0 +1,1 @@
  +5
  2: 5dbf69c07df9 [mq]: 5.patch - test - 10.00
  1: b1b6b0fe0e6d Three (again) - test - 8.00
  0: 4a67dfeea974 [mq]: 1.patch - test - 4.00
  ==== hg qref -d
  # HG changeset patch
  # Date 11 0
  # Parent 
  
  diff -r ... 5
  --- /dev/null
  +++ b/5
  @@ -0,0 +1,1 @@
  +5
  2: 049de6af0c1d [mq]: 5.patch - test - 11.00
  1: b1b6b0fe0e6d Three (again) - test - 8.00
  0: 4a67dfeea974 [mq]: 1.patch - test - 4.00
  ==== qnew with plain header
  popping 6.patch
  now at: 5.patch
  now at: 6.patch
  Date: 12 0
  
  3: 8ad9ebc22b96 imported patch 6.patch - test
  2: 049de6af0c1d [mq]: 5.patch - test
  1: b1b6b0fe0e6d Three (again) - test
  0: 4a67dfeea974 [mq]: 1.patch - test
  ==== hg qref
  adding 6
  Date: 12 0
  
  diff -r ... 6
  --- /dev/null
  +++ b/6
  @@ -0,0 +1,1 @@
  +6
  3: 038c46b02a56 [mq]: 6.patch - test - 12.00
  2: 049de6af0c1d [mq]: 5.patch - test - 11.00
  1: b1b6b0fe0e6d Three (again) - test - 8.00
  0: 4a67dfeea974 [mq]: 1.patch - test - 4.00
  ==== hg qref -d
  Date: 13 0
  
  diff -r ... 6
  --- /dev/null
  +++ b/6
  @@ -0,0 +1,1 @@
  +6
  3: 2785642ea4b4 [mq]: 6.patch - test - 13.00
  2: 049de6af0c1d [mq]: 5.patch - test - 11.00
  1: b1b6b0fe0e6d Three (again) - test - 8.00
  0: 4a67dfeea974 [mq]: 1.patch - test - 4.00
  popping 6.patch
  now at: 5.patch
  ==== qnew -u
  adding 6
  From: jane
  
  diff -r ... 6
  --- /dev/null
  +++ b/6
  @@ -0,0 +1,1 @@
  +6
  3: a05a33f187ce [mq]: 6.patch - jane
  2: 049de6af0c1d [mq]: 5.patch - test
  1: b1b6b0fe0e6d Three (again) - test
  0: 4a67dfeea974 [mq]: 1.patch - test
  ==== qref -d
  From: jane
  Date: 12 0
  
  diff -r ... 6
  --- /dev/null
  +++ b/6
  @@ -0,0 +1,1 @@
  +6
  3: 5702c529dfe9 [mq]: 6.patch - jane
  2: 049de6af0c1d [mq]: 5.patch - test
  1: b1b6b0fe0e6d Three (again) - test
  0: 4a67dfeea974 [mq]: 1.patch - test
  popping 6.patch
  now at: 5.patch
  ==== qnew -d
  adding 7
  Date: 13 0
  
  diff -r ... 7
  --- /dev/null
  +++ b/7
  @@ -0,0 +1,1 @@
  +7
  3: 8dd1eb8d4132 [mq]: 7.patch - test
  2: 049de6af0c1d [mq]: 5.patch - test
  1: b1b6b0fe0e6d Three (again) - test
  0: 4a67dfeea974 [mq]: 1.patch - test
  ==== qref -u
  From: john
  Date: 13 0
  
  diff -r ... 7
  --- /dev/null
  +++ b/7
  @@ -0,0 +1,1 @@
  +7
  3: 4f9d07369cc4 [mq]: 7.patch - john - 13.00
  2: 049de6af0c1d [mq]: 5.patch - test - 11.00
  1: b1b6b0fe0e6d Three (again) - test - 8.00
  0: 4a67dfeea974 [mq]: 1.patch - test - 4.00
  ==== qnew
  adding 8
  diff -r ... 8
  --- /dev/null
  +++ b/8
  @@ -0,0 +1,1 @@
  +8
  4: 868b62f09492 [mq]: 8.patch - test
  3: 4f9d07369cc4 [mq]: 7.patch - john
  2: 049de6af0c1d [mq]: 5.patch - test
  1: b1b6b0fe0e6d Three (again) - test
  0: 4a67dfeea974 [mq]: 1.patch - test
  ==== qref -u -d
  From: john
  Date: 14 0
  
  diff -r ... 8
  --- /dev/null
  +++ b/8
  @@ -0,0 +1,1 @@
  +8
  4: b1e878ae55b9 [mq]: 8.patch - john
  3: 4f9d07369cc4 [mq]: 7.patch - john
  2: 049de6af0c1d [mq]: 5.patch - test
  1: b1b6b0fe0e6d Three (again) - test
  0: 4a67dfeea974 [mq]: 1.patch - test
  popping 8.patch
  now at: 7.patch
  ==== qnew -m
  adding 9
  Nine
  
  diff -r ... 9
  --- /dev/null
  +++ b/9
  @@ -0,0 +1,1 @@
  +9
  4: 7251936ac2bf Nine - test
  3: 4f9d07369cc4 [mq]: 7.patch - john
  2: 049de6af0c1d [mq]: 5.patch - test
  1: b1b6b0fe0e6d Three (again) - test
  0: 4a67dfeea974 [mq]: 1.patch - test
  ==== qref -u -d
  From: john
  Date: 15 0
  
  Nine
  
  diff -r ... 9
  --- /dev/null
  +++ b/9
  @@ -0,0 +1,1 @@
  +9
  4: a0de5bf6e9f7 Nine - john
  3: 4f9d07369cc4 [mq]: 7.patch - john
  2: 049de6af0c1d [mq]: 5.patch - test
  1: b1b6b0fe0e6d Three (again) - test
  0: 4a67dfeea974 [mq]: 1.patch - test
  popping 9.patch
  now at: 7.patch
  ==== qpop -a / qpush -a
  popping 7.patch
  popping 5.patch
  popping 3.patch
  popping 1.patch
  patch queue now empty
  applying 1.patch
  applying 3.patch
  applying 5.patch
  applying 7.patch
  now at: 7.patch
  3: d26a5b7ffce1 imported patch 7.patch - john - 13.00
  2: dda6cf77060a imported patch 5.patch - test - 11.00
  1: 25e32d66c8c7 Three (again) - test - 8.00
  0: e5011c0211fe imported patch 1.patch - test - 4.00
  $ rm -r sandbox

======= hg headers

  $ echo "plain=false" >> $HGRCPATH
  $ mkdir sandbox
  $ (cd sandbox ; runtest)
  ==== init
  ==== qnew -d
  # HG changeset patch
  # Date 3 0
  # Parent 
  
  0: 758bd2596a39 [mq]: 1.patch - test - 3.00
  ==== qref
  adding 1
  # HG changeset patch
  # Date 3 0
  # Parent 
  
  diff -r ... 1
  --- /dev/null
  +++ b/1
  @@ -0,0 +1,1 @@
  +1
  0: 8c640e9949a8 [mq]: 1.patch - test - 3.00
  ==== qref -d
  # HG changeset patch
  # Date 4 0
  # Parent 
  
  diff -r ... 1
  --- /dev/null
  +++ b/1
  @@ -0,0 +1,1 @@
  +1
  0: 4a67dfeea974 [mq]: 1.patch - test - 4.00
  ==== qnew
  adding 2
  # HG changeset patch
  # Parent 
  
  diff -r ... 2
  --- /dev/null
  +++ b/2
  @@ -0,0 +1,1 @@
  +2
  1: fc7e8a2f6499 [mq]: 2.patch - test
  0: 4a67dfeea974 [mq]: 1.patch - test
  ==== qref -d
  # HG changeset patch
  # Date 5 0
  # Parent 
  
  diff -r ... 2
  --- /dev/null
  +++ b/2
  @@ -0,0 +1,1 @@
  +2
  1: 1d9a6a118fd1 [mq]: 2.patch - test
  0: 4a67dfeea974 [mq]: 1.patch - test
  popping 2.patch
  now at: 1.patch
  ==== qnew -d -m
  # HG changeset patch
  # Date 6 0
  # Parent 
  Three
  
  1: 2a9ef0bdefba Three - test - 6.00
  0: 4a67dfeea974 [mq]: 1.patch - test - 4.00
  ==== qref
  adding 3
  # HG changeset patch
  # Date 6 0
  # Parent 
  Three
  
  diff -r ... 3
  --- /dev/null
  +++ b/3
  @@ -0,0 +1,1 @@
  +3
  1: 7f19ad9eea7b Three - test - 6.00
  0: 4a67dfeea974 [mq]: 1.patch - test - 4.00
  ==== qref -m
  # HG changeset patch
  # Date 6 0
  # Parent 
  Drei
  
  diff -r ... 3
  --- /dev/null
  +++ b/3
  @@ -0,0 +1,1 @@
  +3
  1: 7ff7377793e3 Drei - test - 6.00
  0: 4a67dfeea974 [mq]: 1.patch - test - 4.00
  ==== qref -d
  # HG changeset patch
  # Date 7 0
  # Parent 
  Drei
  
  diff -r ... 3
  --- /dev/null
  +++ b/3
  @@ -0,0 +1,1 @@
  +3
  1: d89d3144f518 Drei - test - 7.00
  0: 4a67dfeea974 [mq]: 1.patch - test - 4.00
  ==== qref -d -m
  # HG changeset patch
  # Date 8 0
  # Parent 
  Three (again)
  
  diff -r ... 3
  --- /dev/null
  +++ b/3
  @@ -0,0 +1,1 @@
  +3
  1: b1b6b0fe0e6d Three (again) - test - 8.00
  0: 4a67dfeea974 [mq]: 1.patch - test - 4.00
  ==== qnew -m
  adding 4
  # HG changeset patch
  # Parent 
  Four
  
  diff -r ... 4
  --- /dev/null
  +++ b/4
  @@ -0,0 +1,1 @@
  +4
  2: 74ded07d166b Four - test
  1: b1b6b0fe0e6d Three (again) - test
  0: 4a67dfeea974 [mq]: 1.patch - test
  ==== qref -d
  # HG changeset patch
  # Date 9 0
  # Parent 
  Four
  
  diff -r ... 4
  --- /dev/null
  +++ b/4
  @@ -0,0 +1,1 @@
  +4
  2: 1a651320cf8e Four - test
  1: b1b6b0fe0e6d Three (again) - test
  0: 4a67dfeea974 [mq]: 1.patch - test
  popping 4.patch
  now at: 3.patch
  ==== qnew with HG header
  popping 5.patch
  now at: 3.patch
  # HG changeset patch
  # Date 10 0
  2: d16a272220d2 imported patch 5.patch - test - 10.00
  1: b1b6b0fe0e6d Three (again) - test - 8.00
  0: 4a67dfeea974 [mq]: 1.patch - test - 4.00
  ==== hg qref
  adding 5
  # HG changeset patch
  # Date 10 0
  # Parent 
  
  diff -r ... 5
  --- /dev/null
  +++ b/5
  @@ -0,0 +1,1 @@
  +5
  2: 5dbf69c07df9 [mq]: 5.patch - test - 10.00
  1: b1b6b0fe0e6d Three (again) - test - 8.00
  0: 4a67dfeea974 [mq]: 1.patch - test - 4.00
  ==== hg qref -d
  # HG changeset patch
  # Date 11 0
  # Parent 
  
  diff -r ... 5
  --- /dev/null
  +++ b/5
  @@ -0,0 +1,1 @@
  +5
  2: 049de6af0c1d [mq]: 5.patch - test - 11.00
  1: b1b6b0fe0e6d Three (again) - test - 8.00
  0: 4a67dfeea974 [mq]: 1.patch - test - 4.00
  ==== qnew with plain header
  popping 6.patch
  now at: 5.patch
  now at: 6.patch
  Date: 12 0
  
  3: 8ad9ebc22b96 imported patch 6.patch - test
  2: 049de6af0c1d [mq]: 5.patch - test
  1: b1b6b0fe0e6d Three (again) - test
  0: 4a67dfeea974 [mq]: 1.patch - test
  ==== hg qref
  adding 6
  Date: 12 0
  
  diff -r ... 6
  --- /dev/null
  +++ b/6
  @@ -0,0 +1,1 @@
  +6
  3: 038c46b02a56 [mq]: 6.patch - test - 12.00
  2: 049de6af0c1d [mq]: 5.patch - test - 11.00
  1: b1b6b0fe0e6d Three (again) - test - 8.00
  0: 4a67dfeea974 [mq]: 1.patch - test - 4.00
  ==== hg qref -d
  Date: 13 0
  
  diff -r ... 6
  --- /dev/null
  +++ b/6
  @@ -0,0 +1,1 @@
  +6
  3: 2785642ea4b4 [mq]: 6.patch - test - 13.00
  2: 049de6af0c1d [mq]: 5.patch - test - 11.00
  1: b1b6b0fe0e6d Three (again) - test - 8.00
  0: 4a67dfeea974 [mq]: 1.patch - test - 4.00
  popping 6.patch
  now at: 5.patch
  ==== qnew -u
  adding 6
  # HG changeset patch
  # User jane
  # Parent 
  
  diff -r ... 6
  --- /dev/null
  +++ b/6
  @@ -0,0 +1,1 @@
  +6
  3: a05a33f187ce [mq]: 6.patch - jane
  2: 049de6af0c1d [mq]: 5.patch - test
  1: b1b6b0fe0e6d Three (again) - test
  0: 4a67dfeea974 [mq]: 1.patch - test
  ==== qref -d
  # HG changeset patch
  # User jane
  # Date 12 0
  # Parent 
  
  diff -r ... 6
  --- /dev/null
  +++ b/6
  @@ -0,0 +1,1 @@
  +6
  3: 5702c529dfe9 [mq]: 6.patch - jane
  2: 049de6af0c1d [mq]: 5.patch - test
  1: b1b6b0fe0e6d Three (again) - test
  0: 4a67dfeea974 [mq]: 1.patch - test
  popping 6.patch
  now at: 5.patch
  ==== qnew -d
  adding 7
  # HG changeset patch
  # Date 13 0
  # Parent 
  
  diff -r ... 7
  --- /dev/null
  +++ b/7
  @@ -0,0 +1,1 @@
  +7
  3: 8dd1eb8d4132 [mq]: 7.patch - test
  2: 049de6af0c1d [mq]: 5.patch - test
  1: b1b6b0fe0e6d Three (again) - test
  0: 4a67dfeea974 [mq]: 1.patch - test
  ==== qref -u
  # HG changeset patch
  # User john
  # Date 13 0
  # Parent 
  
  diff -r ... 7
  --- /dev/null
  +++ b/7
  @@ -0,0 +1,1 @@
  +7
  3: 4f9d07369cc4 [mq]: 7.patch - john - 13.00
  2: 049de6af0c1d [mq]: 5.patch - test - 11.00
  1: b1b6b0fe0e6d Three (again) - test - 8.00
  0: 4a67dfeea974 [mq]: 1.patch - test - 4.00
  ==== qnew
  adding 8
  # HG changeset patch
  # Parent 
  
  diff -r ... 8
  --- /dev/null
  +++ b/8
  @@ -0,0 +1,1 @@
  +8
  4: 868b62f09492 [mq]: 8.patch - test
  3: 4f9d07369cc4 [mq]: 7.patch - john
  2: 049de6af0c1d [mq]: 5.patch - test
  1: b1b6b0fe0e6d Three (again) - test
  0: 4a67dfeea974 [mq]: 1.patch - test
  ==== qref -u -d
  # HG changeset patch
  # User john
  # Date 14 0
  # Parent 
  
  diff -r ... 8
  --- /dev/null
  +++ b/8
  @@ -0,0 +1,1 @@
  +8
  4: b1e878ae55b9 [mq]: 8.patch - john
  3: 4f9d07369cc4 [mq]: 7.patch - john
  2: 049de6af0c1d [mq]: 5.patch - test
  1: b1b6b0fe0e6d Three (again) - test
  0: 4a67dfeea974 [mq]: 1.patch - test
  popping 8.patch
  now at: 7.patch
  ==== qnew -m
  adding 9
  # HG changeset patch
  # Parent 
  Nine
  
  diff -r ... 9
  --- /dev/null
  +++ b/9
  @@ -0,0 +1,1 @@
  +9
  4: 7251936ac2bf Nine - test
  3: 4f9d07369cc4 [mq]: 7.patch - john
  2: 049de6af0c1d [mq]: 5.patch - test
  1: b1b6b0fe0e6d Three (again) - test
  0: 4a67dfeea974 [mq]: 1.patch - test
  ==== qref -u -d
  # HG changeset patch
  # User john
  # Date 15 0
  # Parent 
  Nine
  
  diff -r ... 9
  --- /dev/null
  +++ b/9
  @@ -0,0 +1,1 @@
  +9
  4: a0de5bf6e9f7 Nine - john
  3: 4f9d07369cc4 [mq]: 7.patch - john
  2: 049de6af0c1d [mq]: 5.patch - test
  1: b1b6b0fe0e6d Three (again) - test
  0: 4a67dfeea974 [mq]: 1.patch - test
  popping 9.patch
  now at: 7.patch
  ==== qpop -a / qpush -a
  popping 7.patch
  popping 5.patch
  popping 3.patch
  popping 1.patch
  patch queue now empty
  applying 1.patch
  applying 3.patch
  applying 5.patch
  applying 7.patch
  now at: 7.patch
  3: d26a5b7ffce1 imported patch 7.patch - john - 13.00
  2: dda6cf77060a imported patch 5.patch - test - 11.00
  1: 25e32d66c8c7 Three (again) - test - 8.00
  0: e5011c0211fe imported patch 1.patch - test - 4.00
  $ rm -r sandbox