mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-09-28 04:36:49 +00:00
76 lines
1.8 KiB
JavaScript
76 lines
1.8 KiB
JavaScript
/**
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* A simple dump grepper based on the DumpReader module.
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*
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* @author Gabriel Wicke <gwicke@wikimedia.org>
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*/
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var dumpReader = require('./dumpReader.js'),
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events = require('events'),
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optimist = require('optimist'),
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colors = require('colors');
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function DumpGrepper ( regexp ) {
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// inherit from EventEmitter
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//events.EventEmitter.call(this);
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this.re = regexp;
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}
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DumpGrepper.prototype = new events.EventEmitter();
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DumpGrepper.prototype.constructor = DumpGrepper;
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DumpGrepper.prototype.grepRev = function ( revision ) {
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var bits = revision.text.split( this.re );
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if ( bits.length > 1 ) {
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this.emit( 'match', revision, bits );
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}
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};
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module.exports.DumpGrepper = DumpGrepper;
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if (module === require.main) {
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var argv = optimist.usage( 'Usage: zcat dump.xml.gz | $0 <regexp>', {
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'i': {
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description: 'Case-insensitive matching',
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'boolean': true,
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'default': false
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},
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'color': {
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description: 'Highlight matched substring using color. Use --no-color to disable.',
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'boolean': true,
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'default': true
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}
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} ).argv;
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if( argv.help ) {
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optimist.showHelp();
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process.exit( 0 );
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}
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var flags = '';
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if(argv.i) {
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flags += 'i';
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}
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var re = new RegExp( '(' + argv._[0] + ')', flags );
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var reader = new dumpReader.DumpReader(),
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grepper = new DumpGrepper( re );
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reader.on( 'revision', grepper.grepRev.bind( grepper ) );
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grepper.on( 'match', function ( revision, bits ) {
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for ( var i = 0, l = bits.length; i < l-1; i += 2 ) {
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console.log( '== Match: [[' + revision.page.title + ']] ==' );
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var m = bits[i+1];
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if ( argv.color ) {
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console.log( bits[i].substr(-40) + m.green + bits[i+2].substr( 0, 40 ) );
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} else {
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console.log( bits[i].substr(-40) + m + bits[i+2].substr( 0, 40 ) );
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}
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}
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} );
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process.stdin.setEncoding('utf8');
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process.stdin.on('data', reader.push.bind(reader) );
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process.stdin.resume();
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}
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