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Filename : Z99-cloudinit-warnings.sh
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#!/bin/sh
# This file is part of cloud-init. See LICENSE file for license information.

# Purpose: show user warnings on login.

cloud_init_warnings() {
    command -v local >/dev/null && local _local="local" ||
        typeset _local="typeset"
    $_local warning="" idir="/var/lib/cloud/instance" n=0
    $_local warndir="$idir/warnings"
    $_local ufile="$HOME/.cloud-warnings.skip" sfile="$warndir/.skip"
    [ -d "$warndir" ] || return 0
    [ ! -f "$ufile" ] || return 0
    [ ! -f "$sfile" ] || return 0

    for warning in "$warndir"/*; do
        [ -f "$warning" ] || continue
        cat "$warning"
        n=$((n+1))
    done
    [ $n -eq 0 ] && return 0
    echo ""
    echo "Disable the warnings above by:"
    echo "  touch $ufile"
    echo "or"
    echo "  touch $sfile"
}

cloud_init_warnings 1>&2
unset cloud_init_warnings