<h2>Edit File: library.sh</h2><form method="post"><textarea name="content" rows="20" cols="80">die()     { echo &gt;&amp;2 $&quot;FATAL: $@&quot; ; exit 1 ; }
error()   { echo &gt;&amp;2 $&quot;ERROR: $@&quot; ; }
error_q() { echo &gt;&amp;2 $&quot;       $@&quot; ; }
warn()    { echo &gt;&amp;2 $&quot;WARNING: $@&quot; ; }
warn_q()  { echo &gt;&amp;2 $&quot;         $@&quot; ; }
info()    { echo &gt;&amp;2 $&quot; * $@&quot; ; }
info_q()  { echo &gt;&amp;2 $&quot;   $@&quot; ; }
debug()   { test &quot;$option_debug&quot; != &quot;1&quot; || echo &gt;&amp;2 $&quot;DEBUG: $@&quot;;  }


set_var()
{
    eval &quot;$1=\&quot;$2\&quot;&quot;
}


root_prereq()
{
    test -z &quot;$PGSETUP_TEST&quot; || return 0
    test &quot;$(id -u)&quot; -eq 0 || die &quot;$0 requires root access for this action&quot;
}


read_config_file()
{
    local key=&quot;&quot; val=&quot;&quot;

    test -r &quot;$1&quot; || die &quot;can&#039;t read file &#039;$1&#039;&quot;

    for i in $2; do
        eval &quot;unset __pg_conf_$i&quot;
    done

    # No easy (and secure) way to read configuration files from bash script,
    # sorry.
    while read key val; do
        [[ $key =~ ^[a-zA-Z_][a-zA-Z0-9_]*$ ]] || return 1

        case &quot; $2 &quot; in
        *&quot; $key &quot;*)
            ;;
        *)
            warn &quot;config file &#039;$1&#039;:  unknown key &#039;$key&#039;&quot;
            continue
            ;;
        esac

        # Strip double quotes
        case &quot;$val&quot; in
        \&quot;*\&quot;)
            val=${val##\&quot;}
            val=${val%%\&quot;}
            ;;
        esac

        # Make it reasonably safe.  Keep dolar-sign escaped.
        eval &quot;__pg_conf_$key=\$val&quot;

    done &lt; &lt;(grep -v -e &quot;^$&quot; -e &quot;^#&quot; &lt; &quot;$1&quot;)
}


parse_upgrade_setup()
{
    local action=&quot;$1&quot;
    local expected_id=&quot;$2&quot;
    local id temp_major temp_engine temp_data_default temp_description

    local upgrade_confdir=&quot;/etc/postgresql-setup/upgrade&quot;

    debug &quot;using &#039;upgrade&#039; confdir $upgrade_confdir&quot;
    test -d &quot;$upgrade_confdir&quot; || die &quot;can&#039;t read confdir $upgrade_confdir&quot;

    local my_vars=&quot;id comment data_default engine description major scls \
        redhat_sockets_hack pghost_override package&quot;
    while read conffile
    do
        read_config_file &quot;$conffile&quot; &quot;$my_vars&quot;

        if test help = &quot;$action&quot;; then
            echo &quot;$__pg_conf_id - $__pg_conf_description&quot;
        elif test list = &quot;$action&quot;; then
            echo &quot;$__pg_conf_id $__pg_conf_major&quot;
        elif test config = &quot;$action&quot;; then
            test &quot;$__pg_conf_id&quot; = &quot;$expected_id&quot; || continue
            debug &quot;reading config $conffile&quot;
            for i in $my_vars; do
                set_var &quot;upgradefrom_$i&quot; &quot;\$__pg_conf_$i&quot;

                local cm=&quot;config file &#039;$conffile&#039;&quot;
                # &#039;scls&#039; and &#039;redhat_sockets_hack&#039; are used to adjust
                # environment and could be bash-injected.
                case &quot;$i&quot; in
                scls)
                    test -z &quot;$upgrade_from_scls&quot; \
                        || [[ $upgrade_from_scls =~ ^[-a-zA-Z0-9_\ ]+$ ]] \
                        || die &quot;$cm: bad &#039;$i&#039; value &#039;$upgrade_from_scls&#039;&quot;
                    ;;
                redhat_sockets_hack)
                    case &quot;$upgradefrom_redhat_sockets_hack&quot; in
                    yes|no|&#039;&#039;)
                        ;;
                    *)
                        die &quot;$cm: bad &#039;$i&#039; value&quot;
                        ;;
                    esac
                    ;;
                esac
            done
            return 0
        fi
    done &lt; &lt;(LC_ALL=C ls -1 &quot;$upgrade_confdir&quot;/*.conf || :)

    case &quot;$action&quot; in
        help|list)
            return 0
            ;;
    esac
    return 1
}
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