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  • Committer: Package Import Robot
  • Author(s): Scott Moser
  • Date: 2013-03-26 01:10:01 UTC
  • Revision ID: package-import@ubuntu.com-20130326011001-342bcgb65worw4r8
Tags: upstream-0.1.0~bzr191
Import upstream version 0.1.0~bzr191

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tools/hook-ec2-id
 
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#!/bin/bash
 
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set -f
 
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RC_FILTER_INCLUDE=0
 
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RC_FILTER_EXCLUDE=1
 
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RC_FAIL=2
 
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VERBOSITY=${VERBOSITY:-0}
 
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MAP=(
 
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 ARCH:arch RELEASE:release REGION:cloud VIRT:virt STORE:root_store
 
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)
 
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error() { echo "$@" 1>&2; }
 
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fail() { [ $# -eq 0 ] || error "$@"; exit "$RC_FAIL"; }
 
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debug() {
 
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    [ "${VERBOSITY}" -lt "$1" ] && return
 
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    shift
 
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    error "$@"
 
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}
 
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Usage() {
 
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   cat <<EOF
 
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Usage: ${0##*/}
 
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  This program is expected to be called by sstream-sync.
 
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  sstream-sync "--hook=$0" \\
 
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     http://cloud-images.ubuntu.com/eightprotons/ streams/v1/index.js
 
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  It filters output based on environment variables:
 
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$(for m in ${MAP[@]}; do echo "   ${m}"; done)
 
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  Example:
 
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   * VIRT=hvm REGION=us-east-1 ./tools/tenv sstream-sync --max=1 \\
 
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      "--hook=$0" http://cloud-images.ubuntu.com/eightprotons/ \\
 
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      streams/v1/index.js
 
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EOF
 
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}
 
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is_excluded() {
 
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    local ename iname pair
 
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    for pair in "${MAP[@]}"; do
 
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        ename=${pair%:*}
 
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        iname=${pair#*:}
 
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        [ -n "${!ename}" -a -n "${!iname}" -a "${!ename}" != "${!iname}" ] &&
 
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            return 0
 
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    done
 
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    return 1
 
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}
 
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noop() {
 
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    return 0;
 
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}
 
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main() {
 
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    [ "$1" = "--help" -o "$1" = "-h" -o "$1" = "usage" ] &&
 
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        { Usage; exit 0; }
 
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    [ $# -eq 0 ] || fail "Unexpected arguments.  See --help" 
 
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    [ -n "$HOOK" ] ||
 
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        { Usage 1>&2; fail "HOOK not available in environment"; }
 
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    # we only operate on
 
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    case "$HOOK" in
 
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        filter_item|filter_product)
 
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            is_excluded && return "${RC_FILTER_EXCLUDE}"
 
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            return "${RC_FILTER_INCLUDE}"
 
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            ;;
 
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        filter_index_entry)
 
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            case "${content_id}" in
 
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                *:aws) return "${RC_FILTER_INCLUDE}";;
 
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                *) return "${RC_FILTER_EXCLUDE}";;
 
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            esac
 
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            ;;
 
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        insert_item)
 
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            echo "$cloud ${id} ${root_store}/${virt}/${pubname}";;
 
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        filter_*) return "${RC_FILTER_INCLUDE}";;
 
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        *) noop;;
 
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    esac
 
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}
 
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main "$@"
 
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exit $?
 
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# vi: ts=4 expandtab