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#!/bin/bash

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# vim: set ft=sh :

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#

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# Command-line option handling

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# use color output?

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IS_TTY=

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## Options

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LOG_ERROR=y

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LOG_WARN=y

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LOG=y

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LOG_FORCE=y

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LOG_UPDATE=y

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LOG_NOOP=y

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LOG_SKIP=

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LOG_DEBUG=

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LOG_CMD=

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LOG_DIFF=y

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UPDATE_FORCE=

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UPDATE_NOOP=

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UPDATE_DIFF=

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SERIAL_NOOP=

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SERIAL_FORCE=

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COMMIT_SKIP=

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COMMIT_FORCE=

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COMMIT_MSG=' '

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## Output command-line argument help.

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function help_args {

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    local prog=$1

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    cat <<END

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Usage: $prog [options]

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General:

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    -h      display this help text

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    -d DIR  datadir

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Logging:    

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    -q      quiet

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    -v      verbose

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    -D      debug

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    -V      debug commands

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Updates:

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    -p      show changes

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    -F      force-updates without checking src mtime

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    -S      do not update serial

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    -s      update serials

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    -n      no-op/mock-update; don't actually change/deploy anything; implies -SpC

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Commit:

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    -C      do not commit changes

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    -c      commit changes

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    -m MSG  commit message

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Deploy:

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    -R      do not reload zones

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    -r      force reload zones

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END

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}

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## Parse any command-line arguments, setting the global options vars.

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function parse_args {

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    OPTIND=1

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    while getopts 'hd:qvDVpFSsnCcm:Rr' opt "$@"; do

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        case $opt in

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            h)  

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                help_args $0

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                exit 0

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            ;;

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            d)  ROOT="$OPTARG" ;;

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            q)  

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                LOG= 

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                LOG_WARN=

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                LOG_UPDATE=

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                LOG_FORCE=

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                LOG_NOOP=

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                LOG_DIFF=

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                ;;

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            v)  LOG_SKIP=y ;;

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            D)  

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                LOG_DEBUG=y

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                LOG_INFO=y

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                ;;

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            V)  LOG_CMD=y ;;

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            p)  UPDATE_DIFF=y   ;;

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            F)  UPDATE_FORCE=y  ;;

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            S)  SERIAL_NOOP=y   ;;

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            s)  SERIAL_FORCE=y  ;;

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            n)  

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                UPDATE_NOOP=y 

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                # implies -Sp

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                UPDATE_DIFF=y

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                SERIAL_NOUPDATE=y

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                COMMIT_SKIP=y

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                ;;

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            C)  COMMIT_SKIP=y ;;

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            c)  COMMIT_FORCE=y ;;

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            m)  COMMIT_MSG="$OPTARG" ;;

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            ?)  

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                die 

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            ;;

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        esac

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    done

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}

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