mirror of
https://github.com/denoland/deno.git
synced 2024-12-27 01:29:14 -05:00
109 lines
12 KiB
TypeScript
109 lines
12 KiB
TypeScript
#!/usr/bin/env -S deno run --allow-read
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// Ported from: https://github.com/soheilpro/catj
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// Copyright (c) 2014 Soheil Rashidi
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// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
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// Install using `deno install`
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// $ deno install --allow-read https://deno.land/std/examples/catj.ts
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import { parse } from "../flags/mod.ts";
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import * as colors from "../fmt/colors.ts";
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const decoder = new TextDecoder();
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// deno-lint-ignore no-explicit-any
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function isObject(arg: any): arg is Record<string, unknown> {
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return !!arg && arg.constructor === Object;
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}
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function isValidIdentifier(value: string): boolean {
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// eslint-disable-next-line max-len
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return 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.test(
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value,
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);
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}
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function printValue(value: unknown, path: string): void {
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if (typeof value === "string") {
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value = colors.green('"' + value + '"');
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} else if (typeof value === "number") {
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value = value.toString();
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} else if (typeof value === "boolean") {
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value = colors.yellow(value.toString());
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}
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console.log(path + " = " + value);
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}
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function printObject(obj: Record<string, unknown>, path: string): void {
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for (const key of Object.keys(obj)) {
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const value = obj[key];
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let nodePath = path + colors.cyan(".") + key;
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if (!isValidIdentifier(key)) {
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nodePath = (path ? path : colors.cyan(".")) + '["' + key + '"]';
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}
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if (Array.isArray(value)) {
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printArray(value, nodePath);
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} else if (isObject(value)) {
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printObject(value, nodePath);
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} else {
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printValue(value, nodePath);
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}
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}
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}
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function printArray(array: unknown[], path: string): void {
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for (const index in array) {
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const value = array[index];
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const nodePath = (path ? path : colors.cyan(".")) + "[" +
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colors.cyan(index) + "]";
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if (Array.isArray(value)) {
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printArray(value, nodePath);
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} else if (isObject(value)) {
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printObject(value, nodePath);
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} else {
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printValue(value, nodePath);
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}
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}
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}
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// deno-lint-ignore no-explicit-any
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function print(data: any[] | Record<string, unknown>): void {
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if (Array.isArray(data)) {
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printArray(data, "");
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} else {
|
|
printObject(data, "");
|
|
}
|
|
}
|
|
|
|
if (import.meta.main) {
|
|
const parsedArgs = parse(Deno.args);
|
|
|
|
if (parsedArgs.h || parsedArgs.help || parsedArgs._.length === 0) {
|
|
console.log("Usage: catj [-h|--help] [file...]");
|
|
console.log();
|
|
console.log("Examples:");
|
|
console.log();
|
|
console.log("// print file:\n catj file.json");
|
|
console.log();
|
|
console.log("// print multiple files:\n catj file1.json file2.json");
|
|
console.log();
|
|
console.log("// print from stdin:\n cat file.json | catj -");
|
|
}
|
|
|
|
if (parsedArgs._[0] === "-") {
|
|
const contents = await Deno.readAll(Deno.stdin);
|
|
const json = JSON.parse(decoder.decode(contents));
|
|
print(json);
|
|
} else {
|
|
for (const fileName of parsedArgs._) {
|
|
const fileContents = await Deno.readFile(fileName.toString());
|
|
const json = JSON.parse(decoder.decode(fileContents));
|
|
print(json);
|
|
}
|
|
}
|
|
}
|