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shell-scripting-templates/syncScripts/SyncTemplate.sh
2015-01-03 10:44:07 -05:00

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#!/usr/bin/env bash
# ##################################################
# My Generic sync script.
#
# This script will give you the option of using rsync
# or Unison. Rsync is for one-way syncing, Unison is for
# two-way syncing.
#
# Depending on what flags are passed to the script and
# what information is written in the config file, this script
# will perform different behavior.
#
# USAGE:
#
# 1) IMPORTANT: Copy this script and rename it for your purpose before running.
# 2) Run the script. This will create a blank config file for you and then exit.
# 3) Enter your information within the config file
# 4) Run the script again.
#
# DISCLAIMER:
# I am a novice programmer and I bear no responsibility whatsoever
# if this (or any other) script that I write wipes your computer,
# destroys your data, crashes your car, or otherwise causes mayhem
# and destruction. USE AT YOUR OWN RISK.
#
VERSION="1.1"
#
# HISTORY
# * 2015-01-03 - v.1.1 - Added version number
# - Added support for using roots in Unison .prf
# * 2015-01-02 - v.1.0 - First Creation
#
# ##################################################
# Source Scripting Utilities
if [ -f "../lib/utils.sh" ]; then
source "../lib/utils.sh"
else
echo "Please find the file util.sh and add a reference to it in this script. Exiting."
exit 1
fi
# This script calls for a configuration file.
# This is its location
CONFIG="../etc/$SCRIPTNAME.cfg"
# HELP
# When -h is passed to the script, this will display inline help
function HELP () {
e_bold "\nHelp for $SCRIPTNAME"
echo -e "This script will give you the option of using rsync"
echo -e "or Unison. Rsync is for one-way syncing, Unison is for"
echo -e "two-way syncing.\n"
echo -e "Depending on what flags are passed to the script and"
echo -e "what information is written in the config file, this script"
echo -e "will perform different behavior.\n"
echo -e "USAGE:"
echo -e " 1) Copy this script and rename it for your purpose before running."
echo -e " The script will do this for you when run."
echo -e " 2) Run the new script. This will create a blank config file for you and then exit."
echo -e " 3) Enter your information within the config file"
echo -e " 4) Run the script again.\n"
echo -e "This script requires a config file located at: \"$CONFIG\""
echo -e "Ensure that the config file is correct before running."
echo -e "If the config file is not found at all, the script will create a new one for you.\n"
echo -e "MODIFIERS:"
echo -e "-n: Dry Run. This will show what would have been transferred. Works in rsync only."
echo -e "-z: Compresses data during the transfer. Good for low bandwidth. Works in rsync only."
echo -e "-h: View help"
exit 0
}
# READ OPTIONS
# Reads the options passed to the script
# from the command line
# ------------------------
while getopts "hnz" opt; do
case $opt in
h) # show help
HELP
;;
n) # Show progress in terminal
DRYRUN="n"
;;
z) # Compress Data
COMPRESS="z"
;;
\?)
HELP
;;
esac
done
# Create new copy of the script if template is being executed
function newCopy() {
scriptPath
if [ "$SCRIPTNAME" = "SyncTemplate.sh" ]; then
e_bold "name your new script:"
read newname
cp "$SCRIPTPATH"/"$SCRIPTNAME" "$SCRIPTPATH"/"$newname"
e_success "$newname created."
exit 0
fi
}
function configFile() {
# Here we source the Config file or create a new one if none exists.
if is_file "$CONFIG"; then
source "$CONFIG"
else
seek_confirmation "Config file does not exist. Would you like to create one?"
if is_not_confirmed; then
die "No config file. Exiting"
else
touch "$CONFIG"
cat >"$CONFIG" <<EOL
# ##################################################
# CONFIG FILE FOR $SCRIPTNAME
# CREATED ON $NOW
#
# Created by version "$VERSION" of "$SCRIPTNAME"
# ##################################################
# ---------------------------
# BASE CONFIGURATION
# ---------------------------
# METHOD
# ---------------------------
# This script will work with both Unison and rsync.
# Set the METHOD variable to either 'unison' or 'rsync'
METHOD=""
# ---------------------------
# Network Volume Mounting
# ---------------------------
# If one of the directies you need to sync is on a network drive set
# the variable NEEDMOUNT to 'true'
NEEDMOUNT="false"
# MOUNTPOINT is the address of the drive to be mounted.
# Use the format afp://username:password@address/mountname
# to be prompted to enter a password, change MOUNTPW to 'true'
MOUTPW="false"
MOUNTPOINT=""
# REMOTEVOLUME is the directory that the drive should be mounted
# into on the local computer. Typically this is in the /Volumes/ dir.
# and should be named the same as the mountname in the MOUNTPOINT.
# Use a complete path, not a relative path without a trailing slash.
REMOTEVOLUME=""
# Directories To Sync
# ---------------------------
# These are the COMPLETE paths two directories that will be synced.
# Be sure to include trailing slashes on directories.
SOURCEDIRECTORY=""
TARGETDIRECTORY=""
# ---------------------------
# UNISON PREFERENCES
# ---------------------------
# If you are using UNISON to sync your directories, fill in this section.
# Unison keeps its own config profiles which configure
# much of the script. These .prf files are located in '~/.unison/'
# more info: http://www.cis.upenn.edu/~bcpierce/unison/download/releases/stable/unison-manual.html
#
# If you wish to use a Unison profile change USERPROFILE to 'true'
# and add the profile name to UNISONPROFILE.
#
# If your Unison profile contains the 'roots' to by synced, change PROFILEROOTS to 'true'.
# If this remains 'false', the directories to by synced will be the ones specified above.
USEPROFILE="false"
PROFILEROOTS="false"
UNISONPROFILE=""
# ---------------------------
# RSYNC PREFENCES
# ---------------------------
# If you are using rsync, complete this section
# EXCLUDE is a text file that contains all the rsync excludes.
# Anything listed within this file will be ignored during sync.
EXCLUDE=""
# ---------------------------
# ADDITIONAL OPTIONS
# ---------------------------
# LOGFILE is a text file to log all script activity to.
# Use the format /some/directory/file.txt
# If you don't want a log of the activity leave this as /dev/null
LOGFILE="/dev/null"
# PUSHOVER is an online notification tool.
# If you want to receive notifications upon completion
# set the following value to "true"
PUSHOVERNOTIFY="false"
# CANONICALHOST is used to denote a sync hub which should never initiate a sync.
# Leave blank if not needed.
CANONICALHOST=""
EOL
e_success "Config file created. Edit the values before running this script again."
e_arrow "The file is located at: $CONFIG"
echo "Exiting."
exit 0
fi
fi
}
# HostCheck
# Confirm we can run this script. If a canonical host is set in
# the config file we check it here.
function hostCheck() {
if [ "$THISHOST" = "$CANONICALHOST" ]; then
echo "$NOW - Script was not run since we were on the wrong host" >> "$LOGFILE"
die "We are currently on $THISHOST and can not proceed. Be sure to run this script on the non-canonical host."
fi
}
# MethodCheck
# Confirm we have either Unison or Rsync specified
# in the config file. Exit if not
function MethodCheck() {
if [ "$METHOD" != "rsync" ] && [ "$METHOD" != "unison" ]; then
echo "$NOW - Script aborted without a method specified in the config file." >> "$LOGFILE"
die "We can not continue. Please specify a sync method in the config file."
fi
}
function mainScript() {
# Time the script by logging the start time
STARTTIME=$(date +"%s")
# Log Script Start to $LOGFILE
echo -e "-----------------------------------------------------" >> "$LOGFILE"
echo -e "$NOW - $SCRIPTNAME Begun" >> "$LOGFILE"
echo -e "-----------------------------------------------------\n" >> "$LOGFILE"
if [ "$NEEDMOUNT" = "true" ] || [ "$NEEDMOUNT" = "TRUE" ]; then
# Mount AFP volume
if is_not_dir "$REMOTEVOLUME"; then
e_arrow "Mounting drive"
mkdir "$REMOTEVOLUME"
if [ "$MOUTPW" = "true" ]; then # if password prompt needed
mount_afp -i "$MOUNTPOINT" "$REMOTEVOLUME"
else
mount_afp "$MOUNTPOINT" "$REMOTEVOLUME"
fi
sleep 10
echo "$NOW - $REMOTEVOLUME Mounted" >> "$LOGFILE"
e_success "$REMOTEVOLUME Mounted"
else
e_success "$REMOTEVOLUME already mounted"
fi
fi
# Test for source directories.
# If they don't exist we can't continue
# test for target
if is_dir "$TARGETDIRECTORY"; then
e_success "$TARGETDIRECTORY exists"
else
if [ "$NEEDMOUNT" = "true" ] || [ "$NEEDMOUNT" = "TRUE" ]; then
unmountDrive "$REMOTEVOLUME"
if is_dir "$REMOTEVOLUME"; then
rm -r "$REMOTEVOLUME"
fi
fi
echo -e "$NOW - Script aborted since target dir: $TARGETDIRECTORY was not found. Exited.\n" >> "$LOGFILE"
die "target directory: $TARGETDIRECTORY does not exist. Exiting."
fi
# Test for source directory
if is_dir "$SOURCEDIRECTORY"; then
e_success "$SOURCEDIRECTORY exists"
else
if [ "$NEEDMOUNT" = "true" ] || [ "$NEEDMOUNT" = "TRUE" ]; then
unmountDrive "$REMOTEVOLUME"
if is_dir "$REMOTEVOLUME"; then
rm -r "$REMOTEVOLUME"
fi
fi
echo -e "$NOW - Script aborted since source dir: $SOURCEDIRECTORY was not found. Exited.\n" >> "$LOGFILE"
die "source directory: $SOURCEDIRECTORY does not exist. Exiting."
fi
# Time to sync
if [ "$METHOD" = "rsync" ]; then
/usr/bin/rsync -vahh"$DRYRUN""$COMPRESS" --progress --force --delete --exclude-from="$EXCLUDE" "$SOURCEDIRECTORY" "$TARGETDIRECTORY" --log-file="$LOGFILE"
fi
if [ "$METHOD" = "unison" ]; then
# Check if Unison is installed. It is not a standard package
if type_not_exists 'unison'; then
seek_confirmation "Unison not installed, install it?"
if is_confirmed; then
hasHomebrew
brewMaintenance
brew install unison
else
if [ "$NEEDMOUNT" = "true" ] || [ "$NEEDMOUNT" = "TRUE" ]; then
unmountDrive "$REMOTEVOLUME"
if is_dir "$REMOTEVOLUME"; then
rm -r "$REMOTEVOLUME"
fi
fi
die "Can not continue without Unison."
fi
fi
# Run Unison
if [ "$PROFILEROOTS" = "true" ]; then
# Throw error if we don't have enough information
if [ "$USEPROFILE" = "false" ] || [ "$UNISONPROFILE" = "" ]; then
echo "$NOW - We were missing the Unison Profile. Could not sync." >> "$LOGFILE"
die "We were missing the Unison Profile. Could not sync."
fi
# Run unison with the profile
echo "$NOW - Beginning Unison Sync" >> "$LOGFILE"
unison "$UNISONPROFILE"
else
if [ "$USEPROFILE" = "true" ]; then
# Throw error if we can't find the profile
if [ "$UNISONPROFILE" = "" ]; then
echo "$NOW - We were missing the Unison Profile. Could not sync." >> "$LOGFILE"
die "We were missing the Unison Profile. Could not sync."
fi
# Run unison with a profile
echo "$NOW - Beginning Unison Sync" >> "$LOGFILE"
unison "$UNISONPROFILE" "$SOURCEDIRECTORY" "$TARGETDIRECTORY"
else
# Run Unison without a profile
echo "$NOW - Beginning Unison Sync" >> "$LOGFILE"
unison "$SOURCEDIRECTORY" "$TARGETDIRECTORY"
fi
fi
fi
# Unmount the drive (if mounted)
if [ "$NEEDMOUNT" = "true" ] || [ "$NEEDMOUNT" = "TRUE" ]; then
unmountDrive "$REMOTEVOLUME"
fi
# Time the script by logging the end time
ENDTIME=$(date +"%s")
TOTALTIME=$(($ENDTIME-$STARTTIME-20))
# notify with pushover if requested
if [ "$PUSHOVERNOTIFY" = "true" ]; then
pushover "$SCRIPTNAME Completed" "$SCRIPTNAME was run in $(convertsecs $TOTALTIME)"
fi
echo -e "\n-----------------------------------------------------" >> "$LOGFILE"
echo "$NOW - $SCRIPTNAME completed in $(convertsecs $TOTALTIME)" >> "$LOGFILE"
echo -e "-----------------------------------------------------\n" >> "$LOGFILE"
e_success "$NOW - $SCRIPTNAME completed in $(convertsecs $TOTALTIME)"
}
newCopy
configFile
hostCheck
MethodCheck
mainScript