$ echo "[extensions]" >> $HGRCPATH

  $ echo "churn=" >> $HGRCPATH

create test repository

  $ hg init repo

  $ cd repo

  $ echo a > a

  $ hg ci -Am adda -u user1 -d 6:00

  adding a

  $ echo b >> a

  $ echo b > b

  $ hg ci -m changeba -u user2 -d 9:00 a

  $ hg ci -Am addb -u user2 -d 9:30

  adding b

  $ echo c >> a

  $ echo c >> b

  $ echo c > c

  $ hg ci -m changeca -u user3 -d 12:00 a

  $ hg ci -m changecb -u user3 -d 12:15 b

  $ hg ci -Am addc -u user3 -d 12:30

  adding c

  $ mkdir -p d/e

  $ echo abc > d/e/f1.txt

  $ hg ci -Am "add d/e/f1.txt" -u user1 -d 12:45 d/e/f1.txt

  $ mkdir -p d/g

  $ echo def > d/g/f2.txt

  $ hg ci -Am "add d/g/f2.txt" -u user1 -d 13:00 d/g/f2.txt

churn separate directories

  $ cd d

  $ hg churn e

  user1      1 ***************************************************************

churn all

  $ hg churn

  user1      3 ***************************************************************

  user3      3 ***************************************************************

  user2      2 ******************************************

churn excluding one dir

  $ hg churn -X e

  user3      3 ***************************************************************

  user1      2 ******************************************

  user2      2 ******************************************

churn up to rev 2

  $ hg churn -r :2

  user2      2 ***************************************************************

  user1      1 *******************************

  $ cd ..

churn with aliases

  $ cat > ../aliases <<EOF

  > user1 alias1

  > user3 alias3

  > not-an-alias

  > EOF

churn with .hgchurn

  $ mv ../aliases .hgchurn

  $ hg churn

  skipping malformed alias: not-an-alias

  alias1      3 **************************************************************

  alias3      3 **************************************************************

  user2       2 *****************************************

  $ rm .hgchurn

churn with column specifier

  $ COLUMNS=40 hg churn

  user1      3 ***********************

  user3      3 ***********************

  user2      2 ***************

churn by hour

  $ hg churn -f '%H' -s

  06      1 ****************

  09      2 *********************************

  12      4 ******************************************************************

  13      1 ****************

churn with separated added/removed lines

  $ hg rm d/g/f2.txt

  $ hg ci -Am "removed d/g/f2.txt" -u user1 -d 14:00 d/g/f2.txt

  $ hg churn --diffstat

  user1           +3/-1 ++++++++++++++++++++++++++++++++++++++++-------------

  user3           +3/-0 ++++++++++++++++++++++++++++++++++++++++

  user2           +2/-0 +++++++++++++++++++++++++++

churn --diffstat with color

  $ hg --config extensions.color= churn --config color.mode=ansi \

  >     --diffstat --color=always

  user1           +3/-1 \x1b[0;32m++++++++++++++++++++++++++++++++++++++++\x1b[0m\x1b[0;31m-------------\x1b[0m (esc)

  user3           +3/-0 \x1b[0;32m++++++++++++++++++++++++++++++++++++++++\x1b[0m (esc)

  user2           +2/-0 \x1b[0;32m+++++++++++++++++++++++++++\x1b[0m (esc)

changeset number churn

  $ hg churn -c

  user1      4 ***************************************************************

  user3      3 ***********************************************

  user2      2 *******************************

  $ echo 'with space = no-space' >> ../aliases

  $ echo a >> a

  $ hg commit -m a -u 'with space' -d 15:00

churn with space in alias

  $ hg churn --aliases ../aliases -r tip

  no-space      1 ************************************************************

  $ cd ..

Issue833: ZeroDivisionError

  $ hg init issue-833

  $ cd issue-833

  $ touch foo

  $ hg ci -Am foo

  adding foo

this was failing with a ZeroDivisionError

  $ hg churn

  test      0 

  $ cd ..

Ignore trailing or leading spaces in emails

  $ cd repo

  $ touch bar

  $ hg ci -Am'bar' -u 'user4 <user4@x.com>'

  adding bar

  $ touch foo

  $ hg ci -Am'foo' -u 'user4 < user4@x.com >'

  adding foo

  $ hg log -l2 --template '[{author|email}]\n'

  [ user4@x.com ]

  [user4@x.com]

  $ hg churn -c

  user1            4 *********************************************************

  user3            3 ******************************************

  user2            2 ****************************

  user4@x.com      2 ****************************

  with space       1 **************

Test multibyte sequences in names

  $ echo bar >> bar

  $ hg --encoding utf-8 ci -m'changed bar' -u 'El Niño <nino@x.com>'

  $ hg --encoding utf-8 churn -ct '{author|person}'

  user1           4 **********************************************************

  user3           3 *******************************************

  user2           2 *****************************

  user4           2 *****************************

  El Ni\xc3\xb1o         1 ************** (esc)

  with space      1 **************

Test --template argument, with backwards compatibility

  $ hg churn -t '{author|user}'

  user1      4 ***************************************************************

  user3      3 ***********************************************

  user2      2 *******************************

  nino       1 ***************

  with       1 ***************

             0 

  user4      0 

  $ hg churn -T '{author|user}'

  user1      4 ***************************************************************

  user3      3 ***********************************************

  user2      2 *******************************

  nino       1 ***************

  with       1 ***************

             0 

  user4      0 

  $ hg churn -t 'alltogether'

  alltogether     11 *********************************************************

  $ hg churn -T 'alltogether'

  alltogether     11 *********************************************************

  $ cd ..

count lines that look like headings but are not

  $ hg init not-headers

  $ cd not-headers

  $ cat > a <<EOF

  > diff

  > @@ -195,3 +195,21 @@

  > -- a/tests/test-churn.t

  > ++ b/tests/test-churn.t

  > EOF

  $ hg ci -Am adda -u user1

  adding a

  $ hg churn --diffstat

  user1           +4/-0 ++++++++++++++++++++++++++++++++++++++++++++++++++++++

  $ hg rm a

  $ hg ci -Am removea -u user1

  $ hg churn --diffstat

  user1           +4/-4 +++++++++++++++++++++++++++---------------------------