[console-log-level] initial types (#27506)

* [console-log-level] initial types

* [squash] address review feedback

* [squash] export more types in namespace

types/console-log-level/console-log-level-tests.ts

@@ -0,0 +1,20 @@
+import consoleLogLevel = require("console-log-level");
+
+const logger1 = consoleLogLevel({
+    level: "trace",
+    stderr: undefined,
+    prefix: () => "SOME PREFIX"
+});
+
+const logger2 = consoleLogLevel({
+    level: "trace",
+    stderr: true,
+    prefix: "OTHER PREFIX"
+});
+
+logger1.trace("hello %s", "world");
+logger2.debug("hello %s", "world");
+logger2.info("hello %s", "world");
+logger2.warn("hello %s", "world");
+logger2.error("hello %s", "world");
+logger2.fatal("hello %s", "world");

types/console-log-level/index.d.ts

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+// Type definitions for console-log-level 1.4
+// Project: https://github.com/watson/console-log-level
+// Definitions by: Ali Ijaz Sheikh <https://github.com/ofrobots>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.1
+
+type PrefixFunction = (level: string) => string;
+
+declare namespace consoleLogLevel {
+    type LogLevelNames =
+        "trace" | "debug" | "info" | "warn" | "error" | "fatal";
+    type Logger = Record<LogLevelNames, (...args: any[]) => void>;
+}
+
+interface Options {
+    level?: consoleLogLevel.LogLevelNames;
+    prefix?: string | PrefixFunction;
+    stderr?: boolean;
+}
+
+declare function consoleLogLevel(opts: Options): consoleLogLevel.Logger;
+
+export = consoleLogLevel;

types/console-log-level/tsconfig.json

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+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true,
+        "strictFunctionTypes": true
+    },
+    "files": [
+        "index.d.ts",
+        "console-log-level-tests.ts"
+    ]
+}

types/console-log-level/tslint.json

@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }