This script acts as an adapter to the Bash_INI_Parser.

IniParserToParameterAdapter

#!/bin/bash
#
# Copyright (c) 2014-2017 Praveen Saxena <>
# License: BSD-3-Clause
#
# To Use:
# wget -O IniParserToParameterAdapter https://gist.githubusercontent.com/saxenap/fd1328c6e6cfa0b2b08a/raw
#
# Requires:
# 1. Common Functions from https://gist.githubusercontent.com/saxenap/073049d1ead105417837/raw
# 2. Ini Parser from https://github.com/rudimeier/bash_ini_parser

# Arg1: Common Functions
# Arg2: INI Parser
main()
{
    local helpers="${1}"
    local iniParser="${2}"

    source ${helpers}
    source ${iniParser}
}

if [ "${1}" != "--source-only" ]; then
    main "${@}"
fi

readIniFile()
{
    set +o nounset
    set +o errexit
    
    local filename=$@
    read_ini "${filename}" && rc=$? || rc=$?
    
    set -o errexit
    set -o nounset
    
    if [[ ${rc} != 0 ]] ; then
        die "read_ini exited with error code ${rc}."
    fi
}

# Call this function to parse a section.
# Stores parsed keys in a global array as INI__{SectionName}
# Example: 
# parseVarsInSection "PhpPackagesToInstall"
# This would store keys from section "PhpPackagesToInstall" 
# in global array INI__PhpPackagesToInstall
parseVarsInSection()
{
    local section="${1}"
    local i=0

    eval "INI__${section}=()"

    for (( ; ; ))
    do
        ((++i))
        local iniVarname="$(makeIniVariableFor ${section} ${i})"
        local dummy=$(iniValueFor ${iniVarname})
        [ -z "$dummy" ] && break
        eval "INI__${section}[$i]=${dummy}"
    done
}

# Returns the value or empty string for given ini variable
# Usage: iniValueFor INI__PHP__2
iniValueFor()
{
    local iniVarname="${1}"
    eval "local iniVarValue=\${$iniVarname:-}"
    echo "${iniVarValue}"
}

makeIniVariableFor()
{
    local section="${1}"
    local key="${2}"

    local var="INI__${section}__${key}"
    echo "${var}"
}

. ./ini_helper "/home/ec2-user/helper_functions_for_bash" "/home/ec2-user/read_ini.sh"

readIniFile "/home/ec2-user/server_config"

parseVarsInSection "PhpPackagesToInstall"
_install "$(eachFrom INI__PhpPackagesToInstall[@])"