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node_modules/tslint/lib/rules/noImplicitDependenciesRule.js

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+"use strict";
+/**
+ * @license
+ * Copyright 2017 Palantir Technologies, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+var tslib_1 = require("tslib");
+var builtins = require("builtin-modules");
+var fs = require("fs");
+var path = require("path");
+var tsutils_1 = require("tsutils");
+var ts = require("typescript");
+var Lint = require("../index");
+var OPTION_DEV = "dev";
+var OPTION_OPTIONAL = "optional";
+var Rule = /** @class */ (function (_super) {
+    tslib_1.__extends(Rule, _super);
+    function Rule() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    /* tslint:enable:object-literal-sort-keys */
+    Rule.FAILURE_STRING_FACTORY = function (module) {
+        return "Module '" + module + "' is not listed as dependency in package.json";
+    };
+    Rule.prototype.apply = function (sourceFile) {
+        var whitelist = this.ruleArguments.find(function (arg) { return Array.isArray(arg); });
+        if (whitelist === null || whitelist === undefined) {
+            whitelist = [];
+        }
+        return this.applyWithFunction(sourceFile, walk, {
+            dev: this.ruleArguments.indexOf(OPTION_DEV) !== -1,
+            optional: this.ruleArguments.indexOf(OPTION_OPTIONAL) !== -1,
+            whitelist: whitelist,
+        });
+    };
+    /* tslint:disable:object-literal-sort-keys */
+    Rule.metadata = {
+        ruleName: "no-implicit-dependencies",
+        description: "Disallows importing modules that are not listed as dependency in the project's package.json",
+        descriptionDetails: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["\n            Disallows importing transient dependencies and modules installed above your package's root directory.\n        "], ["\n            Disallows importing transient dependencies and modules installed above your package's root directory.\n        "]))),
+        optionsDescription: Lint.Utils.dedent(templateObject_2 || (templateObject_2 = tslib_1.__makeTemplateObject(["\n            By default the rule looks at `\"dependencies\"` and `\"peerDependencies\"`.\n            By adding the `\"", "\"` option the rule also looks at `\"devDependencies\"`.\n            By adding the `\"", "\"` option the rule also looks at `\"optionalDependencies\"`.\n            An array of whitelisted modules can be added to skip checking their existence in package.json.\n        "], ["\n            By default the rule looks at \\`\"dependencies\"\\` and \\`\"peerDependencies\"\\`.\n            By adding the \\`\"", "\"\\` option the rule also looks at \\`\"devDependencies\"\\`.\n            By adding the \\`\"", "\"\\` option the rule also looks at \\`\"optionalDependencies\"\\`.\n            An array of whitelisted modules can be added to skip checking their existence in package.json.\n        "])), OPTION_DEV, OPTION_OPTIONAL),
+        options: {
+            type: "array",
+            items: [
+                {
+                    type: "string",
+                    enum: [OPTION_DEV, OPTION_OPTIONAL],
+                },
+                {
+                    type: "array",
+                },
+            ],
+            minItems: 0,
+            maxItems: 3,
+        },
+        optionExamples: [true, [true, OPTION_DEV], [true, OPTION_OPTIONAL], [true, ["src", "app"]]],
+        type: "functionality",
+        typescriptOnly: false,
+    };
+    return Rule;
+}(Lint.Rules.AbstractRule));
+exports.Rule = Rule;
+function walk(ctx) {
+    var options = ctx.options;
+    var dependencies;
+    var whitelist = new Set(options.whitelist);
+    for (var _i = 0, _a = tsutils_1.findImports(ctx.sourceFile, 63 /* All */); _i < _a.length; _i++) {
+        var name = _a[_i];
+        if (!ts.isExternalModuleNameRelative(name.text)) {
+            var packageName = getPackageName(name.text, whitelist);
+            if (!whitelist.has(packageName) &&
+                builtins.indexOf(packageName) === -1 &&
+                !hasDependency(packageName)) {
+                ctx.addFailureAtNode(name, Rule.FAILURE_STRING_FACTORY(packageName));
+            }
+        }
+    }
+    function hasDependency(module) {
+        if (dependencies === undefined) {
+            dependencies = getDependencies(ctx.sourceFile.fileName, options);
+        }
+        return dependencies.has(module);
+    }
+}
+function getPackageName(name, whitelist) {
+    var parts = name.split(/\//g);
+    if (name[0] !== "@" || whitelist.has(parts[0])) {
+        return parts[0];
+    }
+    if (whitelist.has(name)) {
+        return name;
+    }
+    return parts[0] + "/" + parts[1];
+}
+function getDependencies(fileName, options) {
+    var result = new Set();
+    var packageJsonPath = findPackageJson(path.resolve(path.dirname(fileName)));
+    if (packageJsonPath !== undefined) {
+        try {
+            // don't use require here to avoid caching
+            // remove BOM from file content before parsing
+            var content = JSON.parse(fs.readFileSync(packageJsonPath, "utf8").replace(/^\uFEFF/, ""));
+            if (content.dependencies !== undefined) {
+                addDependencies(result, content.dependencies);
+            }
+            if (content.peerDependencies !== undefined) {
+                addDependencies(result, content.peerDependencies);
+            }
+            if (options.dev && content.devDependencies !== undefined) {
+                addDependencies(result, content.devDependencies);
+            }
+            if (options.optional && content.optionalDependencies !== undefined) {
+                addDependencies(result, content.optionalDependencies);
+            }
+        }
+        catch (_a) {
+            // treat malformed package.json files as empty
+        }
+    }
+    return result;
+}
+function addDependencies(result, dependencies) {
+    for (var _i = 0, _a = Object.keys(dependencies); _i < _a.length; _i++) {
+        var name = _a[_i];
+        result.add(name);
+    }
+}
+function findPackageJson(current) {
+    var prev;
+    do {
+        var fileName = path.join(current, "package.json");
+        if (fs.existsSync(fileName)) {
+            return fileName;
+        }
+        prev = current;
+        current = path.dirname(current);
+    } while (prev !== current);
+    return undefined;
+}
+var templateObject_1, templateObject_2;