#!/usr/bin/env bash

token=UTjgSspYQcX-BVUd1UsC
api=https://gitlab.itpartner.no/api/v4

prune () {
    id=$1
    reg=$(curl -s --header "PRIVATE-TOKEN: $token" \
        "$api/projects/$id/registry/repositories" \
        | json_pp | sed -n 's/^ *"id" *: *\([0-9]\+\).*/\1/p')
    for i in $reg; do
        curl -s --request DELETE --data 'keep_n=10' \
            --data 'name_regex=.*[0-9].*' \
            --header "PRIVATE-TOKEN: $token" \
            "$api/projects/$id/registry/repositories/$i/tags"
    done
}

gc () {
    pod=$(kubectl get pod -n gitlab -lapp=registry | tail -1 | cut -d' ' -f1)
    kubectl exec -n gitlab $pod -- \
      registry garbage-collect /etc/docker/registry/config.yml -m
}

all () {
    groups=$(curl -s --header "PRIVATE-TOKEN: $token" "$api/groups" \
        | json_pp | sed -n 's/^ *"id" *: *\([0-9]\+\).*/\1/p')
    for g in $groups; do
        proj=$(curl -s --header "PRIVATE-TOKEN: $token" \
            "$api/groups/$g/projects?simple=true&include_subgroups=true" \
            | json_pp | sed -n 's/^ \{6\}"id" *: *\([0-9]\+\).*/\1/p')
        for p in $proj; do
            prune $p
        done
    done
}

projects () {
    for i in $@; do
      prune $(echo $i | sed 's,/,%2F,g')
    done
}

case $1 in
    --all) all ;;
    *) projects $@
esac

gc