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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,195 @@ | ||
| #!/bin/bash | ||
| # Borrowed from https://gist.github.com/lgiraudel/6065155 | ||
| # Inplace mode added by Raphaël Doursenaud <rdoursenaud@gpcsolutions.fr> | ||
|
|
||
| PROGNAME=${0##*/} | ||
| INPUT='' | ||
| QUIET='0' | ||
| NOSTATS='0' | ||
| INPLACE='0' | ||
| max_input_size=0 | ||
| max_output_size=0 | ||
|
|
||
| usage() | ||
| { | ||
| cat <<EO | ||
| Usage: $PROGNAME [options] | ||
| Script to optimize JPG and PNG images in a directory. | ||
| Options: | ||
| EO | ||
| cat <<EO | column -s\& -t | ||
| -h, --help & shows this help | ||
| -q, --quiet & disables output | ||
| -i, --input [dir] & specify input directory (current directory by default) | ||
| -o, --output [dir] & specify output directory ("output" by default) | ||
| -ns, --no-stats & no stats at the end | ||
| -p, --inplace & optimizes files inplace | ||
| EO | ||
| } | ||
|
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||
| # $1: input image | ||
| # $2: output image | ||
| optimize_image() | ||
| { | ||
| input_file_size=$(stat -c%s "$1") | ||
| max_input_size=$(expr $max_input_size + $input_file_size) | ||
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| if [ "${1##*.}" = "png" ]; then | ||
| optipng -o1 -clobber -quiet $1 -out $2.firstpass | ||
| pngcrush -q -rem alla -reduce $2.firstpass $2 >/dev/null | ||
| rm -fr $2.firstpass | ||
| fi | ||
| if [ "${1##*.}" = "jpg" -o "${1##*.}" = "jpeg" ]; then | ||
| jpegtran -copy none -progressive $1 > $2 | ||
| fi | ||
|
|
||
| output_file_size=$(stat -c%s "$2") | ||
| max_output_size=$(expr $max_output_size + $output_file_size) | ||
| } | ||
|
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||
| get_max_file_length() | ||
| { | ||
| local maxlength=0 | ||
|
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| IMAGES=$(find $INPUT -regextype posix-extended -regex '.*\.(jpg|jpeg|png)' | grep -v $OUTPUT) | ||
|
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| for CURRENT_IMAGE in $IMAGES; do | ||
| filename=$(basename "$CURRENT_IMAGE") | ||
| if [[ ${#filename} -gt $maxlength ]]; then | ||
| maxlength=${#filename} | ||
| fi | ||
| done | ||
|
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||
| echo "$maxlength" | ||
| } | ||
|
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| main() | ||
| { | ||
| # If $INPUT is empty, then we use current directory | ||
| if [[ "$INPUT" == "" ]]; then | ||
| INPUT=$(pwd) | ||
| fi | ||
|
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||
| # If $OUTPUT is empty, then we use the directory "output" in the current directory | ||
| if [[ "$OUTPUT" == "" ]]; then | ||
| OUTPUT=$(pwd)/output | ||
| fi | ||
| # If inplace, we use /tmp for output | ||
| if [[ "$INPLACE" == "1" ]]; then | ||
| OUTPUT='/tmp/optimize' | ||
| fi | ||
|
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||
| # We create the output directory | ||
| mkdir -p $OUTPUT | ||
|
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||
| # To avoid some troubles with filename with spaces, we store the current IFS (Internal File Separator)... | ||
| SAVEIFS=$IFS | ||
| # ...and we set a new one | ||
| IFS=$(echo -en "\n\b") | ||
|
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||
| max_filelength=`get_max_file_length` | ||
| pad=$(printf '%0.1s' "."{1..600}) | ||
| sDone=' [ DONE ]' | ||
| linelength=$(expr $max_filelength + ${#sDone} + 5) | ||
|
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||
| # Search of all jpg/jpeg/png in $INPUT | ||
| # We remove images from $OUTPUT if $OUTPUT is a subdirectory of $INPUT | ||
| IMAGES=$(find $INPUT -regextype posix-extended -regex '.*\.(jpg|jpeg|png)' | grep -v $OUTPUT) | ||
|
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||
| if [ "$QUIET" == "0" ]; then | ||
| echo --- Optimizing $INPUT --- | ||
| echo | ||
| fi | ||
| for CURRENT_IMAGE in $IMAGES; do | ||
| filename=$(basename $CURRENT_IMAGE) | ||
| if [ "$QUIET" == "0" ]; then | ||
| printf '%s ' "$filename" | ||
| printf '%*.*s' 0 $((linelength - ${#filename} - ${#sDone} )) "$pad" | ||
| fi | ||
|
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| optimize_image $CURRENT_IMAGE $OUTPUT/$filename | ||
|
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| # Replace file | ||
| if [[ "$INPLACE" == "1" ]]; then | ||
| mv $OUTPUT/$filename $CURRENT_IMAGE | ||
| fi | ||
|
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||
| if [ "$QUIET" == "0" ]; then | ||
| printf '%s\n' "$sDone" | ||
| fi | ||
| done | ||
|
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||
| # Cleanup | ||
| if [[ "$INPLACE" == "1" ]]; then | ||
| rm -rf $OUTPUT | ||
| fi | ||
|
|
||
| # we restore the saved IFS | ||
| IFS=$SAVEIFS | ||
|
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||
| if [ "$NOSTATS" == "0" -a "$QUIET" == "0" ]; then | ||
| echo | ||
| echo "Input: " $(human_readable_filesize $max_input_size) | ||
| echo "Output: " $(human_readable_filesize $max_output_size) | ||
| space_saved=$(expr $max_input_size - $max_output_size) | ||
| echo "Space save: " $(human_readable_filesize $space_saved) | ||
| fi | ||
| } | ||
|
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||
| human_readable_filesize() | ||
| { | ||
| echo -n $1 | awk 'function human(x) { | ||
| s=" b Kb Mb Gb Tb" | ||
| while (x>=1024 && length(s)>1) | ||
| {x/=1024; s=substr(s,4)} | ||
| s=substr(s,1,4) | ||
| xf=(s==" b ")?"%5d ":"%.2f" | ||
| return sprintf( xf"%s", x, s) | ||
| } | ||
| {gsub(/^[0-9]+/, human($1)); print}' | ||
| } | ||
|
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||
| SHORTOPTS="h,i:,o:,q,s,p" | ||
| LONGOPTS="help,input:,output:,quiet,no-stats,inplace" | ||
| ARGS=$(getopt -s bash --options $SHORTOPTS --longoptions $LONGOPTS --name $PROGNAME -- "$@") | ||
|
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||
| eval set -- "$ARGS" | ||
| while true; do | ||
| case $1 in | ||
| -h|--help) | ||
| usage | ||
| exit 0 | ||
| ;; | ||
| -i|--input) | ||
| shift | ||
| INPUT=$1 | ||
| ;; | ||
| -o|--output) | ||
| shift | ||
| OUTPUT=$1 | ||
| ;; | ||
| -q|--quiet) | ||
| QUIET='1' | ||
| ;; | ||
| -s|--no-stats) | ||
| NOSTATS='1' | ||
| ;; | ||
| -p|--inplace) | ||
| INPLACE='1' | ||
| ;; | ||
| --) | ||
| shift | ||
| break | ||
| ;; | ||
| *) | ||
| shift | ||
| break | ||
| ;; | ||
| esac | ||
| shift | ||
| done | ||
|
|
||
| main | ||
|
|
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