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

# Redirect output to stderr.
exec 1>&2

PY_FILES="fdroid makebuildserver setup.py examples/*.py buildserver/*.py fdroidserver/*.py"
SH_FILES="hooks/pre-commit"
BASH_FILES="fd-commit jenkins-build docs/update.sh completion/bash-completion"
RB_FILES="buildserver/cookbooks/*/recipes/*.rb"

# In the default configuration, the checks E123, E133, E226, E241 and E242 are
# ignored because they are not rules unanimously accepted
# On top of those, we ignore:
# * E501: line too long (82 > 79 characters)
#   - Recommended for readability but not enforced
#   - Some lines are awkward to wrap around a char limit
# * W503: line break before binary operator
#   - It's quite new
#   - Quite pedantic

PEP8_IGNORE="E123,E133,E226,E241,E242,E501,W503"

err() {
	echo ERROR: "$@"
	exit 1
}

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

if cmd_exists pyflakes-python2; then
	PYFLAKES=pyflakes-python2
elif cmd_exists pyflakes; then
	PYFLAKES=pyflakes
else
	err "pyflakes is not installed!"
fi

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

if ! $PYFLAKES $PY_FILES; then
	err "pyflakes tests failed!"
fi

if ! $PEP8 --ignore=$PEP8_IGNORE $PY_FILES; then
	err "pep8 tests failed!"
fi


for f in $SH_FILES; do
	if ! dash -n $f; then
		err "dash tests failed!"
	fi
done

for f in $BASH_FILES; do
	if ! bash -n $f; then
		err "bash tests failed!"
	fi
done

for f in $RB_FILES; do
	if ! ruby -c $f 1>/dev/null; then
		err "ruby tests failed!"
	fi
done

exit 0