commons

#!/usr/bin/env bash


# This script is meant to be sourced
#
# When you source this script, than you would be able to connect various modules,
# that can help you to add functionality to new script quickly.

if [ -z "$BASH_VERSION" ] && [ -z "$ZSH_VERSION" ]; then
    echo "Sorry, but awesome shell commons can be used/sourced only with bash or zsh";
else
    declare -f "awesome_shell_include" > /dev/null
    if [ $? -ne 0 ]; then
        [ -z "$awesome_shell_commons_file_dir" ] &&
            awesome_shell_commons_file_dir=$( cd "$( dirname "${BASH_SOURCE[0]:-$0}" )" && pwd );
        awesome_shell_includes_list=();
        awesome_shell_arguments=("$@");

        awesome_shell_include(){
            local retries_remaining=2
            while [[ $retries_remaining -gt 0 ]];do
                retries_remaining=$((retries_remaining -1))
                if [ -z "$awesome_shell_arguments" ];then
                    awesome_shell_arguments=("${BASH_ARGV[@]}")
                fi;
                for include in "${awesome_shell_includes_list[@]}"; do
                    if [ "$include" = "$*" ]; then
                        # Include only once
                        return;
                    fi;
                done
                local needs_retry=0
                if [ -n "$awesome_shell_commit_ref" ];then
                    lib_content=$(cd "$awesome_shell_commons_file_dir" && git show "$awesome_shell_commit_ref:shell-libs/$*") && eval "$lib_content"
                elif [ -f "$awesome_shell_commons_file_dir/shell-libs/$*" ]; then
                    source "$awesome_shell_commons_file_dir/shell-libs/$*"
                else
                    needs_retry=1
                    echo "Will try to fetch upstream repo in order to find $*";
                    cd "$awesome_shell_commons_file_dir" && git pull origin 1>/dev/null 2>&1
                    if [ $? -eq 0 ];then
                        echo "awesome-shell updates have been fetched from origin";
                    else
                        retries_remaining=0
                    fi;
                fi;
                if [ $? -eq 0 ] && [ $needs_retry -eq 0 ];then
                    awesome_shell_includes_list+=("$*")
                    return 0
                fi;
            done
            echo "Fatal error: cannot include required file $*";
            exit 1;
        }
    fi;
fi;