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feat: add catjson #517

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merged 5 commits into from
Jun 22, 2019
Merged

feat: add catjson #517

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26998c1
pin eslint version for CI
bartlomieju Jun 22, 2019
7ab17c0
properly install eslint
bartlomieju Jun 22, 2019
1bab3b2
add catjson
bartlomieju Jun 22, 2019
ee6c92b
better help
bartlomieju Jun 22, 2019
57ae483
format & lint
bartlomieju Jun 22, 2019
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2 changes: 1 addition & 1 deletion .ci/template.linux.yml
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
steps:
- bash: npm install eslint typescript@$(TS_VERSION) @typescript-eslint/eslint-plugin @typescript-eslint/parser eslint-config-prettier
- bash: npm install eslint@5.16.0 typescript@$(TS_VERSION) @typescript-eslint/eslint-plugin @typescript-eslint/parser eslint-config-prettier
- template: ./template.unix.yml
- bash: npx eslint **/*.ts --max-warnings=0
- template: ./template.common.yml
2 changes: 1 addition & 1 deletion .ci/template.mac.yml
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
steps:
- bash: npm install -g functional-red-black-tree
- bash: npm -g install eslint typescript@$(TS_VERSION) @typescript-eslint/eslint-plugin @typescript-eslint/parser eslint-config-prettier
- bash: npm -g install eslint@5.16.0 typescript@$(TS_VERSION) @typescript-eslint/eslint-plugin @typescript-eslint/parser eslint-config-prettier
- template: ./template.unix.yml
- bash: eslint **/*.ts --max-warnings=0
- template: ./template.common.yml
2 changes: 1 addition & 1 deletion .ci/template.windows.yml
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
steps:
- bash: npm install eslint typescript@$(TS_VERSION) @typescript-eslint/eslint-plugin @typescript-eslint/parser eslint-config-prettier
- bash: npm install eslint@5.16.0 typescript@$(TS_VERSION) @typescript-eslint/eslint-plugin @typescript-eslint/parser eslint-config-prettier
- powershell: iwr https://deno.land/x/install/install.ps1 -out install.ps1; .\install.ps1 $(DENO_VERSION)
- bash: echo "##vso[task.prependpath]C:\Users\VssAdministrator\.deno\\bin"
- bash: npx eslint **/*.ts --max-warnings=0
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110 changes: 110 additions & 0 deletions examples/catjson.ts
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#!/usr/bin/env deno --allow-read
// Ported from: https://github.com/soheilpro/catj
// Copyright (c) 2014 Soheil Rashidi
// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.

// Install using `deno install`
// $ deno install catjson https://deno.land/std/examples/catjson.ts --allow-read

/* eslint-disable @typescript-eslint/no-use-before-define */
import { parse } from "../flags/mod.ts";
import * as colors from "../colors/mod.ts";

const decoder = new TextDecoder();

function isObject(arg): arg is object {
return !!arg && arg.constructor === Object;
}

function isValidIdentifier(value: string): boolean {
// eslint-disable-next-line max-len
return 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value
);
}

function printValue(value: unknown, path: string): void {
if (typeof value === "string") {
value = colors.green('"' + value + '"');
} else if (typeof value === "number") {
value = value.toString();
} else if (typeof value === "boolean") {
value = colors.yellow(value.toString());
}

console.log(path + " = " + value);
}

function printObject(obj: object, path: string): void {
for (const key of Object.keys(obj)) {
const value = obj[key];
let nodePath = path + colors.cyan(".") + key;

if (!isValidIdentifier(key)) {
nodePath = (path ? path : colors.cyan(".")) + '["' + key + '"]';
}

if (Array.isArray(value)) {
printArray(value, nodePath);
} else if (isObject(value)) {
printObject(value, nodePath);
} else {
printValue(value, nodePath);
}
}
}

function printArray(array: unknown[], path: string): void {
for (const index in array) {
const value = array[index];
const nodePath =
(path ? path : colors.cyan(".")) + "[" + colors.cyan(index) + "]";

if (Array.isArray(value)) {
printArray(value, nodePath);
} else if (isObject(value)) {
printObject(value as object, nodePath);
} else {
printValue(value, nodePath);
}
}
}

// eslint-disable-next-line @typescript-eslint/no-explicit-any
function print(data: any): void {
if (Array.isArray(data)) {
printArray(data, "");
} else {
printObject(data, "");
}
}

async function main(): Promise<void> {
const parsedArgs = parse(Deno.args.slice(1));

if (parsedArgs.h || parsedArgs.help || parsedArgs._.length === 0) {
console.log("Usage: catjson [-h|--help] [file...]");
console.log();
console.log("Examples:");
console.log();
console.log("// print file:\n catjson file.json");
console.log();
console.log("// print multiple files:\n catjson file1.json file2.json");
console.log();
console.log("// print from stdin:\n cat file.json | catjson -");
}

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);
const json = JSON.parse(decoder.decode(fileContents));
print(json);
}
}
}

main();