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Remove meow package #89

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c1961b6
Remove meow package
kaisermann Jun 23, 2025
a073b88
Add minimum engine
kaisermann Jun 23, 2025
8f06fcb
Fix quotes
kaisermann Jun 23, 2025
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106 changes: 50 additions & 56 deletions bin/polyline.bin.js
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@tristen tristen Oct 7, 2025 •
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Apologies for the late review on this and thanks for the contribution! Could you add in an argument for --help as meow previously provided this out of the box?

Original file line number Diff line number Diff line change
@@ -1,70 +1,43 @@
#!/usr/bin/env node

const meow = require('meow');
const { parseArgs } = require('node:util');
const polyline = require('../');

const cli = meow(
`
Provide data from stdin and use with --decode (default), --encode, --toGeoJSON, or --fromGeoJSON. Optionally provide precision.

Usage
$ cat file.json | polyline --fromGeoJSON > file.geojson
Options
--decode -d return an array of lat, lon pairs
--toGeoJSON return GeoJSON from string-encoded polyline
--encode -e return a string-encoded polyline
--fromGeoJSON return a string-encoded polyline from GeoJSON
--precision, -p set a precision.
`,
{
flags: {
decode: {
type: 'boolean',
alias: 'd'
},
toGeoJSON: {
type: 'boolean'
},
encode: {
type: 'boolean',
alias: 'e'
},
fromGeoJSON: {
type: 'boolean'
},
precision: {
type: 'string',
alias: 'p'
}
}
}
);

const {
precision,
decode,
toGeoJSON,
toGeoJson,
encode,
fromGeoJSON,
fromGeoJson
} = cli.flags;
let {
values: {
decode,
encode,
toGeoJSON,
fromGeoJSON,
toGeoJson,
fromGeoJson,
precision,
},
} = parseArgs({
options: {
decode: { type: 'boolean', short: 'd', default: true },
encode: { type: 'boolean', short: 'e' },
toGeoJSON: { type: 'boolean' },
fromGeoJSON: { type: 'boolean' },
precision: { type: 'string', short: 'p' },
},
strict: false,
});

let p;
toGeoJSON = toGeoJSON || toGeoJson;
fromGeoJSON = fromGeoJSON || fromGeoJson;
decode = encode ? false : decode;

if (precision) {
p = parseInt(precision, 10);
}
const p = precision ? parseInt(precision, 10) : undefined;

let rawInput = '';
process.stdin.on('readable', function() {
process.stdin.on('readable', function () {
const chunk = process.stdin.read();
if (chunk !== null) {
rawInput += chunk;
}
});

process.stdin.on('end', function() {
process.stdin.on('end', function () {
const converted = convert(rawInput);
if (!converted) {
exit();
Expand All @@ -85,10 +58,31 @@ function convert(rawString) {
return polyline.fromGeoJSON(JSON.parse(rawString), p);
}

return polyline.decode(rawString, p);
if (decode) {
return polyline.decode(rawString, p);
}

process.stderr.write('No valid option provided.\n');
showHelp();
}

function showHelp() {
console.log(`
Provide data from stdin and use with --decode (default), --encode, --toGeoJSON, or --fromGeoJSON. Optionally provide precision.

Usage:
$ cat file.json | polyline --fromGeoJSON > file.geojson

Options:
--decode, -d Return an array of lat/lon pairs (default)
--toGeoJSON Convert encoded string to GeoJSON
--encode, -e Return a string-encoded polyline
--fromGeoJSON Convert GeoJSON to string-encoded polyline
--precision, -p Set a precision (default is 5)
`);
}

function exit() {
process.stdout.write(cli.showHelp());
showHelp();
process.exit();
}
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