post-commit

#!/bin/sh
#
# continuous export post-commit.sh v.1.1
#
############################# License #########################################
# Copyright (c) 2015, Najub ApS
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#     * Redistributions of source code must retain the above copyright
#       notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above copyright
#       notice, this list of conditions and the following disclaimer in the
#       documentation and/or other materials provided with the distribution.
#     * Neither the name of Najub ApS nor the
#       names of its contributors may be used to endorse or promote products
#       derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL EAKTION APS BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
################################# Script ######################################
# This script runs after a commit and checks the diff between the last
# (the current) commit and the previous one.
# The files in the branch are used to synchronize the content of a folder
# "model_folder/<branch_name>" created at the same level of the current
# repository. If there are edited, added or removed files in the branch
# they will be copied (for changed and added) or removed respectively
#
# /some/path/to/repo/<YOUR_REPO_FOLDER>
# /some/path/to/repo/model_folder/<branch_name>
#
# If the directory does not exists we create and copy everything
###############################################################################

current=${PWD/c:/c}

################################ EDIT ###############################################
# Write here the repo name
#
#reponame='testing_git'

reponame=$(basename "$PWD")
#strip possibly a .git ending
reponame=${reponame%.git}

CURRENT_BRANCH=`git rev-parse --abbrev-ref HEAD`

SKIP_MARK="nv"

if [[ $CURRENT_BRANCH == "$SKIP_MARK"* ]]

then
	echo "Not-for-VEDA branch recognised. Nothing to do."
	exit
fi

parent=${current%/*}

##################################### EDIT ############################################
# comment out if you use an absolute path below
#target_folder="$parent/model_folder"
##################################### EDIT ############################################
# Write here the absolute path to your model folder.Start with small /c
# or comment out if you use a relative path
#
target_folder="/c/VEDA/VEDA_Models"
aPrefix="~g2v_"
###############################################################################



target_folder="$target_folder/$aPrefix$reponame/$CURRENT_BRANCH"
current_folder="${current%/*}/$reponame"

echo ''
echo 'post-commit running...'


if [ -d "$target_folder" ]

then
	echo "$target_folder" found

#protect file array
IFS=$'\t\n'

###############################################################################
# Load an array with alternatively symbols and filepths
# The symbols are D A M for deleted added modified
# Act on the filespaths corresponding to the found symbols
#
FILE_ARR=( `git diff --name-status --no-renames HEAD@{1} HEAD` )

total=${#FILE_ARR[*]}

echo $(($total/2)) files modified
echo ''

for (( i = 0; i<=$(( $total - 1 )); i++ ))
do
    next=$(($i+1))
    check=${FILE_ARR[$i]}

    if [ $check = 'D' ]

# the file has been removed

        then
        echo  "removing $folder/${FILE_ARR[$next]} "
        path="$target_folder/${FILE_ARR[$next]}"
        DIR="${path%/*}"
        rm "$target_folder/${FILE_ARR[$next]}"
        #check if the directory is empty, in case remove it
        [ "$(ls -A $DIR)" ] || rm -r "$DIR"

    elif [ $check = 'M' -o  $check = 'A' ]

#the file has been modified or added

        then
        echo copying "${FILE_ARR[$next]}" to "$target_folder/${FILE_ARR[$next]}"
        path="$target_folder/${FILE_ARR[$next]}"
        DIR="${path%/*}"
        #create subdirs before files
        mkdir -p "${DIR}"
        cp -dR "${FILE_ARR[$next]}" "$target_folder/${FILE_ARR[$next]}"
#set to normal
unset $IFS
    fi
done

else
	echo "$target_folder does not exist. Copying the whole repo in a new $target_folder/"
    git checkout-index -a -f --prefix=".temp/$CURRENT_BRANCH/"
    mkdir -p "${target_folder%/*}"
    mv ./.temp/"$CURRENT_BRANCH" "${target_folder%/*}"
    rm -r ./.temp

fi