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391 lines
11 KiB
391 lines
11 KiB
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Gajus Kuizinas @gajus
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*/
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"use strict";
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const WebpackError = require("./WebpackError");
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const webpackOptionsSchema = require("../schemas/WebpackOptions.json");
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const getSchemaPart = (path, parents, additionalPath) => {
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parents = parents || 0;
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path = path.split("/");
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path = path.slice(0, path.length - parents);
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if (additionalPath) {
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additionalPath = additionalPath.split("/");
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path = path.concat(additionalPath);
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}
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let schemaPart = webpackOptionsSchema;
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for (let i = 1; i < path.length; i++) {
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const inner = schemaPart[path[i]];
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if (inner) schemaPart = inner;
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}
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return schemaPart;
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};
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const getSchemaPartText = (schemaPart, additionalPath) => {
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if (additionalPath) {
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for (let i = 0; i < additionalPath.length; i++) {
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const inner = schemaPart[additionalPath[i]];
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if (inner) schemaPart = inner;
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}
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}
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while (schemaPart.$ref) {
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schemaPart = getSchemaPart(schemaPart.$ref);
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}
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let schemaText = WebpackOptionsValidationError.formatSchema(schemaPart);
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if (schemaPart.description) {
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schemaText += `\n-> ${schemaPart.description}`;
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}
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return schemaText;
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};
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const getSchemaPartDescription = schemaPart => {
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while (schemaPart.$ref) {
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schemaPart = getSchemaPart(schemaPart.$ref);
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}
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if (schemaPart.description) {
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return `\n-> ${schemaPart.description}`;
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}
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return "";
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};
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const SPECIFICITY = {
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type: 1,
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oneOf: 1,
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anyOf: 1,
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allOf: 1,
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additionalProperties: 2,
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enum: 1,
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instanceof: 1,
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required: 2,
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minimum: 2,
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uniqueItems: 2,
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minLength: 2,
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minItems: 2,
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minProperties: 2,
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absolutePath: 2
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};
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const filterMax = (array, fn) => {
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const max = array.reduce((max, item) => Math.max(max, fn(item)), 0);
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return array.filter(item => fn(item) === max);
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};
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const filterChildren = children => {
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children = filterMax(children, err =>
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err.dataPath ? err.dataPath.length : 0
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);
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children = filterMax(children, err => SPECIFICITY[err.keyword] || 2);
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return children;
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};
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const indent = (str, prefix, firstLine) => {
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if (firstLine) {
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return prefix + str.replace(/\n(?!$)/g, "\n" + prefix);
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} else {
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return str.replace(/\n(?!$)/g, `\n${prefix}`);
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}
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};
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class WebpackOptionsValidationError extends WebpackError {
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constructor(validationErrors) {
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super(
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"Invalid configuration object. " +
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"Webpack has been initialised using a configuration object that does not match the API schema.\n" +
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validationErrors
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.map(
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err =>
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" - " +
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indent(
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WebpackOptionsValidationError.formatValidationError(err),
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" ",
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false
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)
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)
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.join("\n")
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);
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this.name = "WebpackOptionsValidationError";
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this.validationErrors = validationErrors;
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Error.captureStackTrace(this, this.constructor);
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}
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static formatSchema(schema, prevSchemas) {
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prevSchemas = prevSchemas || [];
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const formatInnerSchema = (innerSchema, addSelf) => {
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if (!addSelf) {
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return WebpackOptionsValidationError.formatSchema(
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innerSchema,
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prevSchemas
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);
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}
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if (prevSchemas.includes(innerSchema)) {
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return "(recursive)";
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}
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return WebpackOptionsValidationError.formatSchema(
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innerSchema,
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prevSchemas.concat(schema)
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);
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};
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if (schema.type === "string") {
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if (schema.minLength === 1) {
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return "non-empty string";
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}
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if (schema.minLength > 1) {
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return `string (min length ${schema.minLength})`;
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}
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return "string";
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}
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if (schema.type === "boolean") {
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return "boolean";
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}
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if (schema.type === "number") {
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return "number";
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}
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if (schema.type === "object") {
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if (schema.properties) {
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const required = schema.required || [];
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return `object { ${Object.keys(schema.properties)
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.map(property => {
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if (!required.includes(property)) return property + "?";
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return property;
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})
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.concat(schema.additionalProperties ? ["…"] : [])
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.join(", ")} }`;
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}
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if (schema.additionalProperties) {
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return `object { <key>: ${formatInnerSchema(
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schema.additionalProperties
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)} }`;
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}
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return "object";
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}
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if (schema.type === "array") {
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return `[${formatInnerSchema(schema.items)}]`;
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}
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switch (schema.instanceof) {
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case "Function":
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return "function";
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case "RegExp":
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return "RegExp";
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}
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if (schema.enum) {
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return schema.enum.map(item => JSON.stringify(item)).join(" | ");
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}
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if (schema.$ref) {
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return formatInnerSchema(getSchemaPart(schema.$ref), true);
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}
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if (schema.allOf) {
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return schema.allOf.map(formatInnerSchema).join(" & ");
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}
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if (schema.oneOf) {
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return schema.oneOf.map(formatInnerSchema).join(" | ");
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}
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if (schema.anyOf) {
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return schema.anyOf.map(formatInnerSchema).join(" | ");
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}
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return JSON.stringify(schema, null, 2);
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}
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static formatValidationError(err) {
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const dataPath = `configuration${err.dataPath}`;
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if (err.keyword === "additionalProperties") {
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const baseMessage = `${dataPath} has an unknown property '${
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err.params.additionalProperty
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}'. These properties are valid:\n${getSchemaPartText(err.parentSchema)}`;
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if (!err.dataPath) {
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switch (err.params.additionalProperty) {
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case "debug":
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return (
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`${baseMessage}\n` +
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"The 'debug' property was removed in webpack 2.0.0.\n" +
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"Loaders should be updated to allow passing this option via loader options in module.rules.\n" +
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"Until loaders are updated one can use the LoaderOptionsPlugin to switch loaders into debug mode:\n" +
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"plugins: [\n" +
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" new webpack.LoaderOptionsPlugin({\n" +
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" debug: true\n" +
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" })\n" +
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"]"
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);
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}
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return (
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`${baseMessage}\n` +
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"For typos: please correct them.\n" +
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"For loader options: webpack >= v2.0.0 no longer allows custom properties in configuration.\n" +
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" Loaders should be updated to allow passing options via loader options in module.rules.\n" +
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" Until loaders are updated one can use the LoaderOptionsPlugin to pass these options to the loader:\n" +
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" plugins: [\n" +
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" new webpack.LoaderOptionsPlugin({\n" +
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" // test: /\\.xxx$/, // may apply this only for some modules\n" +
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" options: {\n" +
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` ${err.params.additionalProperty}: …\n` +
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" }\n" +
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" })\n" +
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" ]"
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);
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}
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return baseMessage;
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} else if (err.keyword === "oneOf" || err.keyword === "anyOf") {
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if (err.children && err.children.length > 0) {
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if (err.schema.length === 1) {
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const lastChild = err.children[err.children.length - 1];
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const remainingChildren = err.children.slice(
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0,
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err.children.length - 1
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);
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return WebpackOptionsValidationError.formatValidationError(
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Object.assign({}, lastChild, {
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children: remainingChildren,
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parentSchema: Object.assign(
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{},
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err.parentSchema,
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lastChild.parentSchema
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)
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})
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);
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}
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const children = filterChildren(err.children);
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if (children.length === 1) {
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return WebpackOptionsValidationError.formatValidationError(
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children[0]
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);
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}
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return (
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`${dataPath} should be one of these:\n${getSchemaPartText(
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err.parentSchema
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)}\n` +
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`Details:\n${children
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.map(
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err =>
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" * " +
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indent(
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WebpackOptionsValidationError.formatValidationError(err),
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" ",
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false
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)
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)
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.join("\n")}`
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);
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}
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return `${dataPath} should be one of these:\n${getSchemaPartText(
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err.parentSchema
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)}`;
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} else if (err.keyword === "enum") {
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if (
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err.parentSchema &&
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err.parentSchema.enum &&
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err.parentSchema.enum.length === 1
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) {
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return `${dataPath} should be ${getSchemaPartText(err.parentSchema)}`;
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}
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return `${dataPath} should be one of these:\n${getSchemaPartText(
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err.parentSchema
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)}`;
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} else if (err.keyword === "allOf") {
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return `${dataPath} should be:\n${getSchemaPartText(err.parentSchema)}`;
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} else if (err.keyword === "type") {
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switch (err.params.type) {
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case "object":
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return `${dataPath} should be an object.${getSchemaPartDescription(
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err.parentSchema
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)}`;
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case "string":
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return `${dataPath} should be a string.${getSchemaPartDescription(
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err.parentSchema
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)}`;
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case "boolean":
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return `${dataPath} should be a boolean.${getSchemaPartDescription(
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err.parentSchema
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)}`;
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case "number":
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return `${dataPath} should be a number.${getSchemaPartDescription(
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err.parentSchema
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)}`;
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case "array":
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return `${dataPath} should be an array:\n${getSchemaPartText(
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err.parentSchema
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)}`;
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}
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return `${dataPath} should be ${err.params.type}:\n${getSchemaPartText(
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err.parentSchema
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)}`;
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} else if (err.keyword === "instanceof") {
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return `${dataPath} should be an instance of ${getSchemaPartText(
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err.parentSchema
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)}`;
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} else if (err.keyword === "required") {
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const missingProperty = err.params.missingProperty.replace(/^\./, "");
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return `${dataPath} misses the property '${missingProperty}'.\n${getSchemaPartText(
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err.parentSchema,
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["properties", missingProperty]
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)}`;
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} else if (err.keyword === "minimum") {
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return `${dataPath} ${err.message}.${getSchemaPartDescription(
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err.parentSchema
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)}`;
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} else if (err.keyword === "uniqueItems") {
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return `${dataPath} should not contain the item '${
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err.data[err.params.i]
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}' twice.${getSchemaPartDescription(err.parentSchema)}`;
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} else if (
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err.keyword === "minLength" ||
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err.keyword === "minItems" ||
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err.keyword === "minProperties"
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) {
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if (err.params.limit === 1) {
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switch (err.keyword) {
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case "minLength":
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return `${dataPath} should be an non-empty string.${getSchemaPartDescription(
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err.parentSchema
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)}`;
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case "minItems":
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return `${dataPath} should be an non-empty array.${getSchemaPartDescription(
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err.parentSchema
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)}`;
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case "minProperties":
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return `${dataPath} should be an non-empty object.${getSchemaPartDescription(
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err.parentSchema
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)}`;
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}
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return `${dataPath} should be not empty.${getSchemaPartDescription(
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err.parentSchema
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)}`;
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} else {
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return `${dataPath} ${err.message}${getSchemaPartDescription(
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err.parentSchema
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)}`;
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}
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} else if (err.keyword === "not") {
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return `${dataPath} should not be ${getSchemaPartText(
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err.schema
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)}\n${getSchemaPartText(err.parentSchema)}`;
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} else if (err.keyword === "absolutePath") {
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const baseMessage = `${dataPath}: ${
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err.message
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}${getSchemaPartDescription(err.parentSchema)}`;
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if (dataPath === "configuration.output.filename") {
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return (
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`${baseMessage}\n` +
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"Please use output.path to specify absolute path and output.filename for the file name."
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);
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}
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return baseMessage;
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} else {
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return `${dataPath} ${err.message} (${JSON.stringify(
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err,
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null,
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2
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)}).\n${getSchemaPartText(err.parentSchema)}`;
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}
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}
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}
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module.exports = WebpackOptionsValidationError;
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