65 lines
1.6 KiB
JavaScript
Executable File
65 lines
1.6 KiB
JavaScript
Executable File
#!/usr/bin/env node
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'use strict';
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var program = require('commander');
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var fs = require('fs');
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var zopfli = require('../lib/zopfli');
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program
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.version(require('../package.json').version)
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.usage('[options] [files...]')
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.option('--deflate', 'raw deflate (without container)')
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.option('--zlib', 'deflate using zlib container')
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.option('--gzip', 'deflate using gzip container')
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.option('-e, --ext <s>', 'overwrite default file extension')
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.option('-i, --iterations <n>', 'number of iterations (higher = smaller = slower)', parseInt)
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.option('-v, --verbose', 'Verbose')
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.parse(process.argv);
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var options = {
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verbose: false,
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verbose_more: false,
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numiterations: 15,
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blocksplitting: true,
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blocksplittinglast: false,
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blocksplittingmax: 15
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};
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if (program.iterations) options.numiterations = parseInt(program.iterations, 10);
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if (program.verbose) options.verbose = program.verbose;
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var method = zopfli.createGzip;
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var extension = 'gz';
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if (program.deflate) {
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method = zopfli.createDeflate;
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extension = 'deflate';
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}
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if (program.zlib) {
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method = zopfli.createZlib;
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extension = 'zlib';
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}
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if (program.ext) {
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extension = program.ext;
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}
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if (program.args.length === 0) {
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program.outputHelp();
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process.exit(1);
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} else {
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Promise.all(
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program.args.map(function(item) {
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return new Promise(function(resolve, reject) {
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fs.createReadStream(item)
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.on('error', reject)
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.pipe(new method(options))
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.on('error', reject)
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.pipe(fs.createWriteStream(item + '.' + extension))
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.on('error', reject)
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.on('finish', resolve);
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});
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})
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);
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}
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