Add simple MAXTHREADS variable for low memory machines

[bpgallery.git] / bpgallery.sh

diff --git a/bpgallery.sh b/bpgallery.sh
index 4f421c9f0116765f7f1a99b59ccfb4ecf427cab9..e3110fdcf2cec20b0faf7505174ad9171c73d315 100755 (executable)
--- a/bpgallery.sh
+++ b/bpgallery.sh
@@ -19,7 +19,7 @@
 
 set -f
 
 
 set -f
 

-VERSION="1.1.3"
+VERSION="1.1.4"

 
 function bpgallery_default_head() {
 cat <<END
 
 function bpgallery_default_head() {
 cat <<END


@@ -377,6 +377,16 @@ else
        WCCOMMAND="$WCCOMMAND -l"
 fi
 
        WCCOMMAND="$WCCOMMAND -l"
 fi
 

+if [[ -z $MAXTHREADS ]]; then
+       # if there's more than 2G of memory, then do 4 threads, otherwise, just 1
+       __total_memory=$(free -t -g | sed -ne '2 { s#Mem:[[:space:]]*\([0-9]*\)[[:space:]]*.*$#\1#; p; }')
+       if [[ $__total_memory -ge 2 ]]; then
+               MAXTHREADS=4
+       else
+               MAXTHREADS=1
+       fi
+fi
+

 if [[ -z $WIDTH ]]; then
        WIDTH=100
 fi
 if [[ -z $WIDTH ]]; then
        WIDTH=100
 fi


@@ -543,6 +553,10 @@ function check_dimensions() {
        wantedheight=$2
        dir=$3
        filename=$4
        wantedheight=$2
        dir=$3
        filename=$4

+       if [ ! -e "$dir/$filename" ]; then
+               echo 0
+               return
+       fi

        iconwidth=$($IDENTIFYCOMMAND -format "%wx%h" "$dir/$filename")
        iconheight=${iconwidth//*x}
        iconwidth=${iconwidth//x*}
        iconwidth=$($IDENTIFYCOMMAND -format "%wx%h" "$dir/$filename")
        iconheight=${iconwidth//*x}
        iconwidth=${iconwidth//x*}


@@ -627,7 +641,7 @@ function generate_resized_images() {
                                        $ECHOCOMMAND -n -e "\000"
                        fi
                done | \
                                        $ECHOCOMMAND -n -e "\000"
                        fi
                done | \

-               $XARGSCOMMAND -0 --verbose --max-procs=4 -I {} $CONVERTTOOL -resize $1 '{}' $2/'{}' 2>&1 | \
+               $XARGSCOMMAND -0 --verbose --max-procs=$MAXTHREADS -I {} $CONVERTTOOL -resize $1 '{}' $2/'{}' 2>&1 | \

                        while read throwout; do
                                $ECHOCOMMAND done: $currentimage/$imagestoupdate images
                                currentimage=$((currentimage+1))
                        while read throwout; do
                                $ECHOCOMMAND done: $currentimage/$imagestoupdate images
                                currentimage=$((currentimage+1))