pre-commit

#!/bin/bash
#
# Copyright (c) 2014 ThESCOM (Max Oberberger -- max@thescom.de)
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License 
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
######
#
# pre-commit git hook to check the validity of a puppet manifest on client-side
#

echo "### Checking puppet syntax, for science! ###"
for file in `git diff --name-only --cached | grep -E '\.(pp)'`
do
    # Only check new/modified files
    if [[ -f $file ]]
    then
        puppet-lint \
            --no-80chars-check \
            --no-autoloader_layout-check \
            --no-nested_classes_or_defines-check \
            --no-only_variable_string-check \
            --no-2sp_soft_tabs-check \
            --with-filename $file

        # Set us up to bail if we receive any syntax errors
        if [[ $? -ne 0 ]]
        then
            syntax_is_bad=1
        else
            echo "$file looks good"
        fi
    fi
done
echo ""

echo "### Checking if puppet manifests are valid ###"
# validating the whole manifest takes too long. Therefore we validate just the
# relevant file.
for file in `git diff --name-only --cached | grep -E '\.(pp)'`
do
    if [[ -f $file ]] 
    then
        puppet parser validate $file
        if [[ $? -ne 0 ]]
        then
            echo "ERROR: puppet parser failed at: $file"
            syntax_is_bad=1
        else
            echo "OK: $file looks valid"
        fi
    fi
done
echo ""

if [[ $syntax_is_bad -eq 1 ]]
then
    echo "FATAL: Syntax is bad. See above errors"
    echo "Bailing"
    exit 1
else
    echo "Everything looks good."
fi