Attachment 213166 Details for Bug 387555

determine_active_scanners

determine_active_scanners (text/plain), 3.07 KB, created by Johannes Meixner on 2008-05-07 13:45:22 UTC

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Creator: Johannes Meixner

Created: 2008-05-07 13:45:22 UTC

Size: 3.07 KB

patch

obsolete

>#! /bin/bash
>#
># Johannes Meixner <jsmeix@suse.de>, 2004, 2005, 2006, 2007, 2008
>
>#set -x
>
>export PATH="/sbin:/usr/sbin:/usr/bin:/bin"
>export LC_ALL="POSIX"
>export LANG="POSIX"
>umask 022
>
>MY_NAME=${0##*/}
>OUTPUT_FORMAT="$1"
>[ -z "$OUTPUT_FORMAT" ] && OUTPUT_FORMAT="ASCII"
>[ "$OUTPUT_FORMAT" != "ASCII" -a "$OUTPUT_FORMAT" != "YCP" ] && { echo -en "\nUsage:\n$MY_NAME {ASCII|YCP}\n" 1>&2 ; exit 1 ; }
>
># Input:
>
># Create temporary file names:
>TMP_DATA=$(mktemp -u /tmp/$MY_NAME.XXXXXX)
>TMP_DATA_RAW=$(mktemp -u /tmp/$MY_NAME.XXXXXX)
>
># Get the raw data
>MAXIMUM_WAIT="60"
>if [ -x /usr/bin/scanimage ]
>then scanimage -f '%d,%v,%m;' >$TMP_DATA_RAW &
>     scanimagePID=$!
>     for i in $( seq $MAXIMUM_WAIT )
>     do ps $scanimagePID &>/dev/null || break
>        sleep 1
>     done
>     if ps $scanimagePID &>/dev/null
>     then [ "$OUTPUT_FORMAT" = "YCP" ] && echo "[]"
>          # I do not know how to suppress the "...Killed..." notification on stderr
>          # which disturbs my error message.
>          # Therefore the error message is output before the kill command is executed.
>          # This has also the advantage that usually the "...Killed..." notification
>          # happens after the "exit" so that it is nicely lost in the middle of nowhere:
>          echo "There is no response from the 'scanimage -L' command." 1>&2
>          echo "Therefore it was aborted after $MAXIMUM_WAIT seconds timeout." 1>&2
>          if grep -q '^net$' /etc/sane.d/dll.conf
>          then echo "" 1>&2
>               echo "When the 'net' metadriver is activated and something is wrong" 1>&2
>               echo "in the network, it can happen that there is no response from" 1>&2
>               echo "the 'scanimage -L' command. For example when the communication" 1>&2
>               echo "with a server which should be used by the 'net' metadriver" 1>&2
>               echo "gets distorted because a firewall drops some network traffic." 1>&2
>               echo "In this case it should help to disable the 'net' metadriver" 1>&2
>               echo "as a workaround until the issue in the network is fixed." 1>&2
>          fi
>          echo "" 1>&2
>          kill -9 $scanimagePID &>/dev/null
>          exit 10
>     fi
>else 
>    echo "Cannot execute /usr/bin/scanimage" 1>&2
>    exit 2
>fi
>tr ';' '\n' <$TMP_DATA_RAW | sort -u >$TMP_DATA
>
># Output:
>
># Output header:
>if [ "$OUTPUT_FORMAT" = "YCP" ]
>then echo "[" 
>else echo "BACKEND|SANE_DEVICE|MANUFACTURER|MODEL"
>fi
>
># Output scanner entries:
>exec <$TMP_DATA
>while read LINE
>do BACKEND=$( echo $LINE | grep -o '^[^:]*' )
>   SANE_DEVICE=$( echo $LINE | cut -d ',' -s -f 1 )
>   MANUFACTURER=$( echo $LINE | cut -d ',' -s -f 2 )
>   MODEL=$( echo $LINE | cut -d ',' -s -f 3 )
>   if [ "$OUTPUT_FORMAT" = "YCP" ]
>   then echo -e "  \$[ \"backend\":\"$BACKEND\",\n     \"sane_device\":\"$SANE_DEVICE\",\n     \"manufacturer\":\"$MANUFACTURER\",\n     \"model\":\"$MODEL\"\n  ],"
>   else echo "$BACKEND|$SANE_DEVICE|$MANUFACTURER|$MODEL"
>   fi
>done
>
># Output a footer for YCP
>if [ "$OUTPUT_FORMAT" = "YCP" ]
>then echo -e "  \$[]\n]"
>fi
>
># Remove the temporary files:
>rm $TMP_DATA $TMP_DATA_RAW
>exit 0
>

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Attachments on bug 387555: 213166