forked from MapComplete/MapComplete
38 lines
1.2 KiB
TypeScript
38 lines
1.2 KiB
TypeScript
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import * as fs from "fs";
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import {TagUtils} from "../Logic/Tags/TagUtils";
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import {writeFileSync} from "fs";
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function main(args) {
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if (args.length < 2) {
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console.log("Given a single geojson file and a filter specification, will print all the entries to std-out which pass the property")
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console.log("USAGE: perProperty `file.geojson` `key=value` [outputfile]")
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return
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}
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const path = args[0]
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const spec = args[1]
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const output = args[2]
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const data = JSON.parse(fs.readFileSync(path, "UTF8"))
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const filter = TagUtils.Tag(JSON.parse(spec))
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const features = data.features.filter(f => filter.matchesProperties(f.properties))
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if(features.length === 0){
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console.log("Warning: no features matched the filter. Exiting now")
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return
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}
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const collection = {
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type:"FeatureCollection",
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features
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}
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const stringified = JSON.stringify(collection, null, " ")
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if(output === undefined){
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console.log(stringified)
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}else{
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console.log("Filtered "+path+": kept "+features.length+" out of "+data.features.length+" objects")
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writeFileSync(output, stringified)
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}
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}
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main(process.argv.slice(2))
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