@cdktf/hcl2json
Version:
Transform HCL into JSON
75 lines • 9.43 kB
JavaScript
"use strict";
/**
* Copyright (c) HashiCorp, Inc.
* SPDX-License-Identifier: MPL-2.0
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.wrapTerraformExpression = exports.replaceQuotes = void 0;
/**
* This function is used to escape quotes within a string.
* Note: This is a really naive implmentation that will not be able to work with
* nested templates. However, nested templates require parsing, so we will
* only handle strings without nested templates for the moment
* @param input The string to escape
*/
function replaceQuotes(input) {
const fullyQuotedMatch = /^(\s*")(.*)("\s*)$/.exec(input);
const hasTemplate = /(?<!\$)\$\{/.test(input);
if (fullyQuotedMatch !== null && !hasTemplate) {
return `${fullyQuotedMatch[1]}${fullyQuotedMatch[2].replace(/"/g, `\\"`)}${fullyQuotedMatch[3]}`;
}
return input;
}
exports.replaceQuotes = replaceQuotes;
/**
* This function is used to wrap a string in quotes conditionally.
* - If the string is already quoted, it will be returned as-is.
* - If the string contains a newline, it will be wrapped in a heredoc.
* - If the string is a number, it will be returned as-is.
* - If the string is a boolean, it will be returned as-is.
* - If the string is a list or map, it will be returned as-is.
*
* @param input The string to wrap
* @returns The wrapped string, and the offset of the cursor within the string
*
* @example
* wrapTerraformExpression("foo") // { wrap: '"foo"', wrapOffset: 1 }
* wrapTerraformExpression("foo\nbar") // { wrap: '<<EOE\nfoo\nbar\nEOE\n', wrapOffset: 5 }
* wrapTerraformExpression("22") // { wrap: '22', wrapOffset: 0 }
* wrapTerraformExpression("true") // { wrap: 'true', wrapOffset: 0 }
* wrapTerraformExpression("[22, 10]") // { wrap: '[22, 10]', wrapOffset: 0 }
* wrapTerraformExpression("{ foo = 22 }") // { wrap: '{ foo = 22 }', wrapOffset: 0 }
*/
function wrapTerraformExpression(input) {
input = replaceQuotes(input);
if (!isNaN(Number(input))) {
return { wrap: input, wrapOffset: 0 };
}
if (input === "true" || input === "false") {
return { wrap: input, wrapOffset: 0 };
}
if (input.startsWith(`"`)) {
if (input.indexOf("\n") >= 0) {
const trimWrapped = input.substring(1, input.length - 1);
return {
wrap: `<<EOE\n${trimWrapped}\nEOE\n`,
wrapOffset: 5,
};
}
return { wrap: input, wrapOffset: 0 };
}
if (input.startsWith("[") || input.startsWith("{")) {
return { wrap: input, wrapOffset: 0 };
}
if (input.startsWith("<<")) {
// For Heredocs, we need to ensure that the string ends with an empty newline as
// the HCL parser doesn't find the ending token otherwise
if (!input.endsWith("\n")) {
return { wrap: input + "\n", wrapOffset: 0 };
}
return { wrap: input, wrapOffset: 0 };
}
return { wrap: `"${input}"`, wrapOffset: 1 };
}
exports.wrapTerraformExpression = wrapTerraformExpression;
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