nixpkgs/pkgs/by-name/ke/keepass/extractWinRscIconsToStdFreeDesktopDir.sh

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#!/bin/sh
# The file from which to extract *.ico files.
#rscFile="./KeePass.exe"
rscFile=$1
# A regexp that can extract the image size from the file name.
# sizeRegex='[^\.]+\.exe_[0-9]+_[0-9]+_[0-9]+_[0-9]+_([0-9]+x[0-9]+)x[0-9]+\.png'
sizeRegex=$2
# sizeReplaceExp='\1'
sizeReplaceExp=$3
# A regexp that can extract the name of the target image from the file name.
# nameRegex='([^\.]+)\.exe.+'
nameRegex=$4
# nameReplaceExp='\1'
nameReplaceExp=$5
# out=./myOut
out=$6
# An optional temp dir. TODO: Generate it randomly by default instead.
tmp=./tmp
if [ "" != "$4" ]; then
tmp=$7
fi
rm -rf $tmp/png $tmp/ico
mkdir -p $tmp/png $tmp/ico
# Extract the ressource file's extension.
rscFileExt=`echo "$rscFile" | sed -re 's/.+\.(.+)$/\1/'`
# Debug ressource file extension.
echo "rscFileExt=$rscFileExt"
if [ "ico" = "$rscFileExt" ]; then
cp -p $rscFile $tmp/ico
else
wrestool -x --output=$tmp/ico -t14 $rscFile
fi
icotool --icon -x --palette-size=0 -o $tmp/png $tmp/ico/*.ico
mkdir -p $out
for i in $tmp/png/*.png; do
fn=`basename "$i"`
size=$(echo $fn | sed -re 's/'${sizeRegex}'/'${sizeReplaceExp}'/')
name=$(echo $fn | sed -re 's/'${nameRegex}'/'${nameReplaceExp}'/')
targetDir=$out/share/icons/hicolor/$size/apps
targetFile=$targetDir/$name.png
mkdir -p $targetDir
mv $i $targetFile
done
rm -rf $tmp/png $tmp/ico