BashRC: Added new Git and Docker helper functions.

{

    docker rmi --force $(docker images -a | awk '{print $3}')

}

function git-branch-last-commitdate()

{

    git for-each-ref --sort=-committerdate refs/remotes/origin/ \

        --format='%(committerdate:short) %(committeremail) %(refname:short) %(upstream:short)'

}

# Based on https://gist.github.com/jehiah/1288596

function git-branch-status()

{

    TMP_FILE=$(mktemp)

    (

        git-branch-last-commitdate | while read committerdate authoremail local remote; do

            [ -z "$remote" ] && remote="origin/master"

            git rev-list --left-right ${local}...${remote} -- 2>/dev/null \

                >${TMP_FILE} || continue

            LEFT_AHEAD=$(grep -c '^<' ${TMP_FILE})

            RIGHT_AHEAD=$(grep -c '^>' ${TMP_FILE})

            echo "$local | (ahead $LEFT_AHEAD) | (behind $RIGHT_AHEAD) \

                | $remote | $committerdate | $authoremail"

        done

    ) | column -t -s '|'

    rm ${TMP_FILE}

}

# Based on http://www.commandlinefu.com/commands/view/13708/show-memory-usage-of-all-docker-lxc-containers

function docker-memory-usage()

{

    TMP_FILE=$(mktemp)

    (

        echo 0 > ${TMP_FILE}

        for line in `docker ps | awk '{print $1}' | grep -v CONTAINER`; do

            name=$(docker ps | grep $line | awk '{printf $NF" "}')

            mem=$(echo $(( `cat /sys/fs/cgroup/memory/system.slice/docker-$line*/memory.usage_in_bytes` / 1024 / 1024 )))

            all=$[$(cat $TMP_FILE) + $mem]

            echo $all > ${TMP_FILE}

            printf '%s | %dMB\n' $name $mem

        done | sort -rh -k3

        printf '| -----\nMemory summary | %dMB' $(cat $TMP_FILE)

    ) | column -t -s '|'

    rm ${TMP_FILE}

}