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TiddlyWiki5/bin/optimise-svgs.js
2021-04-16 09:20:39 +01:00

80 lines
2.0 KiB
JavaScript
Executable File

#!/usr/bin/env node
/*
Optimise the SVGs in ./core/images using SVGO from https://github.com/svg/svgo
Install SVGO with the following command in the root of the repo:
npm install svgo@2.3.0
*/
"use strict";
var fs = require("fs"),
path = require("path"),
{ optimize } = require("svgo"),
config = {
plugins: [
'cleanupAttrs',
'removeDoctype',
'removeXMLProcInst',
'removeComments',
'removeMetadata',
'removeTitle',
'removeDesc',
'removeUselessDefs',
'removeEditorsNSData',
'removeEmptyAttrs',
'removeHiddenElems',
'removeEmptyText',
'removeEmptyContainers',
// 'removeViewBox',
'cleanupEnableBackground',
'convertStyleToAttrs',
'convertColors',
'convertPathData',
'convertTransform',
'removeUnknownsAndDefaults',
'removeNonInheritableGroupAttrs',
'removeUselessStrokeAndFill',
'removeUnusedNS',
'cleanupIDs',
'cleanupNumericValues',
'moveElemsAttrsToGroup',
'moveGroupAttrsToElems',
'collapseGroups',
// 'removeRasterImages',
'mergePaths',
'convertShapeToPath',
'sortAttrs',
//'removeDimensions',
{name: 'removeAttrs', params: { attrs: '(stroke|fill)' } }
]
};
var basepath = "./core/images/",
files = fs.readdirSync(basepath).sort();
files.forEach(function(filename) {
if(filename.slice(-4) === ".tid") {
var filepath = path.resolve(basepath,filename),
data = fs.readFileSync(filepath,"utf8"),
lines = data.split("\n"),
blankLine = lines.indexOf(""),
header = lines.slice(0,blankLine),
body = lines.slice(blankLine + 1),
fakeSVG = body.join("\n");
// A hack to make the new-journal-button work
fakeSVG = fakeSVG.replace("<<now \"DD\">>","&lt;&lt;now &quot;DD&quot;&gt;&gt;");
config.path = filepath;
var result = optimize(fakeSVG,config);
if(result) {
var newSVG = header.join("\n") + "\n\n" + result.data.replace("&lt;&lt;now &quot;DD&quot;&gt;&gt;","<<now \"DD\">>");
fs.writeFileSync(filepath,newSVG);
} else {
console.log("Error " + err + " with " + filename)
process.exit();
};
}
});