minideb/buildall

#!/bin/bash

# Build a minideb image for each supported dist

set -e
set -u
set -o pipefail

DISTS="buster-snapshot"

# is_snapshot() {
#     local -r dist_snapshot_regex="^(jessie|stretch|buster|unstable)-snapshot"
#     [[ $1 =~ $dist_snapshot_regex ]]
# }

get_latest_month_query(){
    local -r snapshot_tmp_dir=$(mktemp -d)
    local -r snapshot_archive_tmp_file="${snapshot_tmp_dir}/archive.html"
    mkdir -p "${snapshot_tmp_dir}"

    ! curl -sSfL "https://snapshot.debian.org/archive/debian/" > "$snapshot_archive_tmp_file" && echo "Error when accessing https://snapshot.debian.org/archive/debian/" && return 1

    local month_query=$(grep -Po "(\?year=\d\d\d\d&month=\d+)" "${snapshot_archive_tmp_file}" | tail -1)

    [[ -z "$month_query" ]] && echo "Not found snapshots using the following regex: (?year=\d\d\d\d&month=\d+)" && return 1

    echo "$month_query"
}

get_latest_debian_snapshot_id() {
    local -r snapshot_tmp_dir=$(mktemp -d)
    local -r snapshot_list_tmp_file="${snapshot_tmp_dir}/month-snapshots.html"
    mkdir -p "${snapshot_tmp_dir}"

    ! month_query=$(get_latest_month_query) && return 1

    ! curl -sSfL "https://snapshot.debian.org/archive/debian/$month_query" > "$snapshot_list_tmp_file" && echo "Not found snapshots for these parameters: query=${month_query}" && return 1

    local snapshot_id=$(grep -Po "(\d+T.*Z)" "${snapshot_list_tmp_file}" | tail -1)

    [[ -z "$snapshot_id" ]] && echo "Not found snapshot id using the following regex: (\d+T.*Z)" && return 1

    echo "$snapshot_id"
}

! snapshot_id=$(get_latest_debian_snapshot_id) && exit 1

for DIST in $DISTS; do
    DIST=${DIST%-*}

    ./buildone "$DIST" "$snapshot_id"
done

mkdir -p build
echo "$snapshot_id" > build/snapshot_id