Concurrent bash tasks

parallel.sh

#!/bin/bash

BASE_URL=git@github.com:tiagocoutinho
REPOS=( "gepace" "cryocon" "vacuubrand" "xia-pfcu" "mythen-dcs" )

CLONE="git clone --depth=1 --no-single-branch"

function fetch {
        for repo in "${REPOS[@]}"
        do
                echo "Start fetching $repo..."
                $CLONE $BASE_URL/$repo
	done
}

function fetch_background {
	repos_urls=()
	repos_pids=()

	for repo in "${REPOS[@]}"
	do
		echo "Start fetching $repo..."
		url="$BASE_URL/$repo/"
		repos_urls[${#repos_urls[@]}]=$url
        	$CLONE -q $url &
		repos_pids[${#repos_pids[@]}]=$!
	done

	for job in "${repos_pids[@]}"
	do
		wait $job
		echo "Finished $job"
	done
}

function fetch_parallel {
	# --halt now,fail=1     exit when the first job fails. Kill running jobs.
	parallel $CLONE $BASE_URL/{} ::: ${REPOS[@]}
}