#!/bin/sh
#
# Simple pre-commit hook to check that there are no errors in the fdroid
# metadata files.

# Redirect output to stderr.
exec 1>&2

FILES="fdroid makebuildserver setup.py examples/*.py buildserver/*.py fdroidserver/*.py"

cmd_exists() {
	command -v $1 1>/dev/null
}

# For systems that switched to python3, first check for the python2 versions
if cmd_exists pyflakes-python2; then
	PYFLAKES=pyflakes-python2
elif cmd_exists pyflakes; then
	PYFLAKES=pyflakes
else
	echo "pyflakes is not installed!"
fi

if cmd_exists pep8-python2; then
	PEP8=pep8-python2
elif cmd_exists pep8; then
	PEP8=pep8
else
	echo "pep8 is not installed!"
fi

# If there are python errors or warnings, print them and fail.
[ -n $PYFLAKES ] && $PYFLAKES $FILES
[ -n $PEP8 ] && $PEP8 --ignore=E123,E501 $FILES


#------------------------------------------------------------------------------#
# check the syntax of included shell scripts

exitstatus=0
# use bash to check that the syntax is correct
for f in fd-commit jenkins-build docs/*.sh hooks/pre-commit; do
    if bash -n $f; then
        : # success! do nothing
    else
        echo "FAILED!"
        exitstatus=1
    fi
done

exit $exitstatus