tests/test-check-code

util.copyfiles: don't try os_link() again if it failed before

If the os_link() call on the first file in the directory fails [1],
we switch mode to using shutil.copy() for all remaining files.

[1] happens for example on Windows for every file when cloning from a UNC
path without specifying --pull.

#!/bin/sh
#cd `dirname $0`
cat > correct.py <<EOF
def toto(arg1, arg2):
    del arg2
    return (5 + 6, 9)
EOF

cat > wrong.py <<EOF
def toto( arg1, arg2):
    del(arg2)
    return ( 5+6, 9)
EOF

cat > quote.py <<EOF
# let's use quote in comments
(''' ( 4x5 )
but """\\''' and finally''',
"""let's fool checkpatch""", '1+2',
'"""', 42+1, """and
( 4-1 ) """, "( 1+1 )\" and ")
a, '\\\\\\\\', "\\\\\\" x-2", "c-1"
EOF

check_code=`dirname $0`/../contrib/check-code.py
${check_code} ./wrong.py ./correct.py ./quote.py