yaml-diff-patch/dist/bin/yaml-patch.js

Apply a JSON diff/patch to YAML while preserving whitespace, comments and overall structure

#!/usr/bin/env node
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const oppa_1 = require("oppa");
const fs_1 = require("fs");
const path = require("path");
const __1 = require("..");
const binName = path.basename(process.argv[1], path.extname(process.argv[1]));
const bailHelp = (op) => {
    op.showHelp(false);
    process.exit(1);
};
const argOutput = {
    name: 'output',
    alias: 'o',
    type: 'string',
    description: 'Output filename to write to, or "-" for stdout',
    default: '-',
    argumentName: 'file',
};
async function writeOut(result, output) {
    if (output === '')
        process.stdout.write(result);
    else
        await fs_1.promises.writeFile(output, result);
}
async function main() {
    if (binName === 'yaml-patch') {
        const op = (0, oppa_1.oppa)({
            name: binName,
            usage: `${binName} source.yaml patch.json`,
            description: `Patches <source.yaml> with the RFC6902 in <patch.json>`
        })
            .add(argOutput);
        const { rest, args } = op.parse();
        const { output } = args;
        const [yamlSourceFile, jsonPatchFile] = rest;
        if (!jsonPatchFile)
            bailHelp(op);
        const [yamlSource, jsonPatch] = await Promise.all([
            fs_1.promises.readFile(yamlSourceFile, 'utf-8'),
            fs_1.promises.readFile(jsonPatchFile, 'utf-8'),
        ]);
        const res = (0, __1.yamlPatch)(yamlSource, JSON.parse(jsonPatch));
        await writeOut(res, output);
    }
    else if (binName === 'yaml-diff-patch') {
        const op = (0, oppa_1.oppa)({
            name: binName,
            usage: `${binName} source.yaml old.json new.json`,
            description: `Patches <source.yaml> with the diff between ` +
                `<old.json> and <new.json>`
        })
            .add(argOutput);
        const { rest, args } = op.parse();
        const { output } = args;
        const [yamlSourceFile, oldJsonFile, newJsonFile] = rest;
        if (!newJsonFile)
            bailHelp(op);
        const [yamlSource, oldJson, newJson] = await Promise.all([
            fs_1.promises.readFile(yamlSourceFile, 'utf-8'),
            fs_1.promises.readFile(oldJsonFile, 'utf-8'),
            fs_1.promises.readFile(newJsonFile, 'utf-8'),
        ]);
        const res = (0, __1.yamlDiffPatch)(yamlSource, JSON.parse(oldJson), JSON.parse(newJson));
        await writeOut(res, output);
    }
    else if (binName === 'yaml-overwrite') {
        const op = (0, oppa_1.oppa)({
            name: binName,
            usage: `${binName} source.yaml source.json`,
            description: `Patches <source.yaml> with the diff between ` +
                `<source.yaml> and <source.json>`
        })
            .add(argOutput);
        const { rest, args } = op.parse();
        const { output } = args;
        const [yamlSourceFile, jsonSourceFile] = rest;
        if (!jsonSourceFile)
            bailHelp(op);
        const [yamlSource, jsonSource] = await Promise.all([
            fs_1.promises.readFile(yamlSourceFile, 'utf-8'),
            fs_1.promises.readFile(jsonSourceFile, 'utf-8'),
        ]);
        const res = (0, __1.yamlOverwrite)(yamlSource, JSON.parse(jsonSource));
        await writeOut(res, output);
    }
    else {
        console.error(`Unknown program ${binName}`);
        process.exit(1);
    }
}
main()
    .catch(err => {
    console.error(`Failed to patch file: ` + err.message);
    process.exit(2);
});