1 #!/bin/sh

     2 

     3 cat >findbranch.py <<EOF

     4 import re, sys

     5 

     6 head_re = re.compile('^#(?:(?:\\s+([A-Za-z][A-Za-z0-9_]*)(?:\\s.*)?)|(?:\\s*))$')

     7 

     8 for line in sys.stdin:

     9     hmatch = head_re.match(line)

    10     if not hmatch:

    11         sys.exit(1)

    12     if hmatch.group(1) == 'Branch':

    13         sys.exit(0)

    14 sys.exit(1)

    15 EOF

    16 hg init a

    17 cd a

    18 echo "Rev 1" >rev

    19 hg add rev

    20 hg commit -m "No branch."

    21 hg branch abranch

    22 echo "Rev  2" >rev

    23 hg commit -m "With branch."

    24 if hg export 0 | python ../findbranch.py; then

    25     echo "Export of default branch revision has Branch header" 1>&2

    26     exit 1

    27 fi

    28 if hg export 1 | python ../findbranch.py; then

    29     :  # Do nothing

    30 else

    31     echo "Export of branch revision is missing Branch header" 1>&2

    32     exit 1

    33 fi

    34 # Make sure import still works with branch information in patches.

    35 cd ..

    36 hg init b

    37 cd b

    38 hg -R ../a export 0 | hg import -

    39 hg -R ../a export 1 | hg import -