mirror of https://github.com/webpack/webpack.git
192 lines
7.3 KiB
JavaScript
192 lines
7.3 KiB
JavaScript
/*
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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 webpackOptionsSchema = require("../schemas/webpackOptionsSchema.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)
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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)
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schemaPart = inner;
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}
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}
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while(schemaPart.$ref) schemaPart = getSchemaPart(schemaPart.$ref);
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let schemaText = WebpackOptionsValidationError.formatSchema(schemaPart);
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if(schemaPart.description)
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schemaText += `\n${schemaPart.description}`;
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return schemaText;
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};
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const indent = (str, prefix, firstLine) => {
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if(firstLine) {
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return prefix + str.replace(/\n(?!$)/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 Error {
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constructor(validationErrors) {
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super();
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if(Error.hasOwnProperty("captureStackTrace")) {
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Error.captureStackTrace(this, this.constructor);
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}
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this.name = "WebpackOptionsValidationError";
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this.message = "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.map(err => " - " + indent(WebpackOptionsValidationError.formatValidationError(err), " ", false)).join("\n");
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this.validationErrors = validationErrors;
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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) return WebpackOptionsValidationError.formatSchema(innerSchema, prevSchemas);
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if(prevSchemas.indexOf(innerSchema) >= 0) return "(recursive)";
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return WebpackOptionsValidationError.formatSchema(innerSchema, prevSchemas.concat(schema));
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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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else if(schema.minLength > 1)
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return `string (min length ${schema.minLength})`;
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return "string";
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} else if(schema.type === "boolean") {
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return "boolean";
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} else if(schema.type === "number") {
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return "number";
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} else 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).map(property => {
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if(required.indexOf(property) < 0) return property + "?";
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return property;
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}).concat(schema.additionalProperties ? ["..."] : []).join(", ")} }`;
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}
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if(schema.additionalProperties) {
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return `object { <key>: ${formatInnerSchema(schema.additionalProperties)} }`;
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}
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return "object";
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} else if(schema.type === "array") {
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return `[${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.$ref) return formatInnerSchema(getSchemaPart(schema.$ref), true);
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if(schema.allOf) return schema.allOf.map(formatInnerSchema).join(" & ");
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if(schema.oneOf) return schema.oneOf.map(formatInnerSchema).join(" | ");
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if(schema.anyOf) return schema.anyOf.map(formatInnerSchema).join(" | ");
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if(schema.enum) return schema.enum.map(item => JSON.stringify(item)).join(" | ");
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return JSON.stringify(schema, 0, 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 '${err.params.additionalProperty}'. These properties are valid:\n${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 `${baseMessage}\n` +
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"The 'debug' property was removed in webpack 2.\n" +
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"Loaders should be updated to allow passing this option via loader options in module.rules.\n" +
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"Until loaders are updated one can use the LoaderOptionsPlugin to switch loaders into debug mode:\n" +
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"plugins: [\n" +
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" new webpack.LoaderOptionsPlugin({\n" +
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" debug: true\n" +
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" })\n" +
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"]";
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}
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return baseMessage + "\n" +
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"For typos: please correct them.\n" +
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"For loader options: webpack 2 no longer allows custom properties in configuration.\n" +
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" Loaders should be updated to allow passing options via loader options in module.rules.\n" +
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" Until loaders are updated one can use the LoaderOptionsPlugin to pass these options to the loader:\n" +
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" plugins: [\n" +
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" new webpack.LoaderOptionsPlugin({\n" +
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" // test: /\\.xxx$/, // may apply this only for some modules\n" +
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" options: {\n" +
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` ${err.params.additionalProperty}: ...\n` +
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" }\n" +
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" })\n" +
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" ]";
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}
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return baseMessage;
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} else if(err.keyword === "oneOf" || err.keyword === "anyOf") {
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if(err.children && err.children.length > 0) {
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return `${dataPath} should be one of these:\n${getSchemaPartText(err.parentSchema)}\n` +
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`Details:\n${err.children.map(err => " * " + indent(WebpackOptionsValidationError.formatValidationError(err), " ", false)).join("\n")}`;
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}
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return `${dataPath} should be one of these:\n${getSchemaPartText(err.parentSchema)}`;
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} else if(err.keyword === "enum") {
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if(err.parentSchema && err.parentSchema.enum && err.parentSchema.enum.length === 1) {
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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${getSchemaPartText(err.parentSchema)}`;
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} else if(err.keyword === "allOf") {
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return `${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.`;
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case "string":
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return `${dataPath} should be a string.`;
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case "boolean":
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return `${dataPath} should be a boolean.`;
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case "number":
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return `${dataPath} should be a number.`;
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case "array":
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return `${dataPath} should be an array:\n${getSchemaPartText(err.parentSchema)}`;
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}
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return `${dataPath} should be ${err.params.type}:\n${getSchemaPartText(err.parentSchema)}`;
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} else if(err.keyword === "instanceof") {
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return `${dataPath} should be an instance of ${getSchemaPartText(err.parentSchema)}.`;
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} else if(err.keyword === "required") {
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const missingProperty = err.params.missingProperty.replace(/^\./, "");
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return `${dataPath} misses the property '${missingProperty}'.\n${getSchemaPartText(err.parentSchema, ["properties", missingProperty])}`;
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} else if(err.keyword === "minLength" || err.keyword === "minItems") {
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if(err.params.limit === 1)
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return `${dataPath} should not be empty.`;
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else
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return `${dataPath} ${err.message}`;
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} else {
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// eslint-disable-line no-fallthrough
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return `${dataPath} ${err.message} (${JSON.stringify(err, 0, 2)}).\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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