#!/bin/bash

# This script is for use on the machine where the nightly Expeditee binaries are to be 
# uploaded. Put this script in the same folder as the uploads are meant to go.
# When any binary or its log *.out file is being uploaded via secure shell, this script
# will be called. The invocation of this script should go into .ssh/authorizedkeys.
# Then this script will delete all other files in this folder that have the same naming
# pattern as the uploaded binary/log file, excepting any existing file with the current
# date in its name (in case this turns out to be the uploaded file itself).


# http://stackoverflow.com/questions/1401482/yyyy-mm-dd-format-date-in-shell-script                                                                    
date=`date +%Y-%m-%d`

# code from Puka
# the file uploaded is the one with the latest timestamp
# ls -rt lists files by time, then get the last one
#incoming_file=$1
incoming_file=`ls -rt *$date* 2>/dev/null | tail -n 1`
echo $incoming_file

# arrays
# make sure -linux64 comes before linux, because we'll be matching against these 
# strings, so need the longest strings to be matched first.
bin_suffix=("-linux64" "-linux" "-windows.exe" "-MacOS-intel-MountainLion.dmg")
rke_suffix=("-linux64" "-linux" "-windows" "-mac-MountainLion")


# http://stackoverflow.com/questions/2172352/in-bash-how-can-i-check-if-a-string-begins-with-some-value
# http://stackoverflow.com/questions/229551/string-contains-in-bash
rke_file_pattern=
if [[ $incoming_file == "rke-"* ]] ; then
    for suffix in ${rke_suffix[@]}; do
	if [[ $incoming_file == *"$suffix"* ]]; then
	    rke_file_pattern="rke-*${suffix}.out"
	    break
	fi
    done

    # ONE WAY:
    #echo "found $rke_file_pattern"
    # -f to make it silent: will also be silent if there's nothing to rm
    #rm -f $rke_file_pattern

    # OR:
    # get rid of all files of the pattern that are not of the current date 
    # http://stackoverflow.com/questions/10981439/reading-filenames-into-an-array
    
    # setting for fileglobbing: 
    # for using wildcards to get matching files on filesystem into array
    # "The nullglob option causes the array to be empty if there are no matched."
    # http://stackoverflow.com/questions/10981439/reading-filenames-into-an-array
    # See shopt command at http://www.gnu.org/software/bash/manual/html_node/The-Shopt-Builtin.html
    shopt -s nullglob

    files=($rke_file_pattern)
    for file in ${files[@]}; do
	# set nullglob earlier, so won't be here if there's no file that matched
	if [[ $file != "rke-$date${suffix}.out" ]]; then
	    rm -rf $file
	fi
    done

    shopt -u nullglob
fi

# binaries start with "Expeditee-1-"
bin_file_pattern=
if [[ $incoming_file == "Expeditee-"* ]] ; then
    for suffix in ${bin_suffix[@]}; do
	if [[ $incoming_file == *"$suffix" ]]; then
	    bin_file_pattern="Expeditee-1-*$suffix"
	    break
	fi
    done

    # ONE WAY:
    #echo "found $bin_file_pattern"
    # -f to make it silent: will also be silent if there's nothing to rm
    #rm -rf $bin_file_pattern

    # OR:
    # get rid of all files of the pattern that are not of the current date
    # http://stackoverflow.com/questions/10981439/reading-filenames-into-an-array
    shopt -s nullglob
    files=($bin_file_pattern)
    for file in ${files[@]}; do
	# set nullglob earlier, so won't be here if there's no file that matched
	if [[ $file != "Expeditee-1-$date$suffix" ]]; then
	    echo "$file"
	    rm -rf $file
	fi
    done
    shopt -u nullglob
fi

# clean up ._Expeditee-1-YYYY-MM-DD-MacOS-intel-MountainLion.dmg temp files
#ls -la "._Expeditee*dmg"
rm -rf "._Expeditee*dmg"