432 prove that we can show a diff of an amend using committemplate:

   433 

   434   $ hg init issue4470

   435   $ cd issue4470

   436   $ cat >> .hg/hgrc <<EOF

   437   > [committemplate]

   438   > changeset = {desc}\n\n

   439   >      HG: {extramsg}

   440   >      HG: user: {author}\n{ifeq(p2rev, "-1", "",

   441   >     "HG: branch merge\n")

   442   >     }HG: branch '{branch}'\n{if(currentbookmark,

   443   >     "HG: bookmark '{currentbookmark}'\n")  }{subrepos %

   444   >     "HG: subrepo {subrepo}\n"              }

   445   >     {splitlines(diff()) % 'HG: {line}\n'}

   446   > EOF

   447   $ echo a > a

   448   $ echo b > b

   449   $ hg addr

   450   adding a

   451   adding b

   452   $ hg ci -m 'init'

   453   $ hg rm b

   454   $ hg ci -m 'rm b'

   455   $ hg export .

   456   # HG changeset patch

   457   # User test

   458   # Date 0 0

   459   #      Thu Jan 01 00:00:00 1970 +0000

   460   # Node ID 88d0ffa85e7a92ccc7c9cc187f9b17858bd206a7

   461   # Parent  9118d25c26b1ca5cab5683b02100e7eb2c0d9471

   462   rm b

   463   

   464   diff -r 9118d25c26b1 -r 88d0ffa85e7a b

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

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

   467   @@ -1,1 +0,0 @@

   468   -b

   469   $ echo a >> a

   470   $ HGEDITOR=cat hg commit --amend

   471   rm b

   472   

   473   

   474   HG: Leave message empty to abort commit.

   475   HG: user: test

   476   HG: branch 'default'

   477   

   478   HG: diff -r 9118d25c26b1 a

   479   HG: --- a/a	Thu Jan 01 00:00:00 1970 +0000

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

   481   HG: @@ -1,1 +1,2 @@

   482   HG:  a

   483   HG: +a

   484   HG: diff -r 9118d25c26b1 b

   485   HG: --- a/b	Thu Jan 01 00:00:00 1970 +0000

   486   HG: +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000

   487   HG: @@ -1,1 +0,0 @@

   488   HG: -b

   489   saved backup bundle to $TESTTMP/*/*-amend-backup.hg (glob)

   490   $ cd ..

   491 

   492 cleanup