Created
September 12, 2017 15:00
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Backup Heroku MySQL to local
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#!/usr/bin/env bash | |
function join_by { local IFS="$1"; shift; echo "$*"; } | |
# Check for commands used by this script | |
command -v pv >/dev/null 2>&1 || { echo >&2 "I require pv but it's not installed. Aborting."; exit 1; } | |
command -v mysqldump >/dev/null 2>&1 || { echo >&2 "I require mysqldump but it's not installed. Aborting."; exit 1; } | |
command -v gzip >/dev/null 2>&1 || { echo >&2 "I require gzip but it's not installed. Aborting."; exit 1; } | |
stages=$(git remote | sed 's/origin//g' | tr '\n' ' ' | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//') | |
stage_req=$1 | |
availible_stages=$(IFS=, ; echo "${stages[*]}") | |
if [ "$1" == "" ]; then | |
echo "Please give the stage to backup: (${availible_stages})" | |
exit 1 | |
fi | |
if [ "$1" == "-h" ]; then | |
echo "This script is used to backup the database before deploy!" | |
exit 2 | |
fi | |
if [[ " ${stages[@]} " =~ " $stage_req " ]]; then | |
database_url=`heroku config -r ${stage_req} | grep DATABASE_URL | sed 's/DATABASE_URL://g' | sed 's/ //g'` | |
database=`echo ${database_url} | sed -nE 's/.*\/{1}(.+)\?.*/\1/p'` | |
dbhost=`echo ${database_url} | sed -nE 's/.*\@(.+)\/{1}.*/\1/p' | sed -nE 's/(.*)\/.*/\1/p'` | |
dbuser=`echo ${database_url} | sed -nE 's/.*\/\/(.+)\:.*/\1/p'` | |
dbpasswd=`echo ${database_url} | sed -nE 's/.*\:(.+)\@.*/\1/p'` | |
else | |
# is not correct | |
echo "Please use a stage! (${availible_stages})" | |
echo "${stage_req} is not a known stage!" | |
exit 3 | |
fi | |
echo "Backing up ${database} database" | |
backup_date=`date +%Y_%m_%d_%H_%M` | |
backup_dir=$HOME/dumps | |
echo "Location: $backup_dir" | |
mkdir -p $backup_dir | |
mysqldump -h ${dbhost} -u ${dbuser} --password=${dbpasswd} --compress --skip-lock-tables --port=3306 --single-transaction --routines --triggers --databases ${database} | pv | gzip -c > ${backup_dir}/${backup_date}_${database}.sql.gz | |
if [ $? -ne 0 ]; then | |
echo "Error executing backup for $stage ! Exiting!" | |
exit 4 | |
fi | |
arr=(staging acceptance) | |
if [[ " ${arr[@]} " =~ " $stage " ]]; then | |
echo "Cleaning up older backups. Keeping latest 2." | |
ls -tp ${backup_dir}/*_${database}.sql.gz | tail -n +3 | while IFS= read -r f; do rm "$f"; done | |
else | |
echo "Cleaning up older backups. Keeping latest 4." | |
ls -tp ${backup_dir}/*_${database}.sql.gz | tail -n +5 | while IFS= read -r f; do rm "$f"; done | |
fi | |
file_size=`du -h ${backup_dir}/${backup_date}_${database}.sql.gz` | |
echo "Done with backup! Size: $file_size" | |
exit 0 |
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