From 705d2970699a0fe4251343bfcc5b9cab3c897002 Mon Sep 17 00:00:00 2001
From: mrbar42 <mrbar42@gmail.com>
Date: Sun, 28 Jan 2018 20:13:17 +0200
Subject: [PATCH] add TypeScript support

---
 graceful.d.ts       |  21 +
 package-lock.json   | 950 ++++++++++++++++++++++++++++++++++++++++++++
 package.json        |  15 +-
 tests/TypeScript.ts |  25 ++
 tslint.json         |   9 +
 5 files changed, 1016 insertions(+), 4 deletions(-)
 create mode 100644 graceful.d.ts
 create mode 100644 package-lock.json
 create mode 100644 tests/TypeScript.ts
 create mode 100644 tslint.json

diff --git a/graceful.d.ts b/graceful.d.ts
new file mode 100644
index 0000000..1f13834
--- /dev/null
+++ b/graceful.d.ts
@@ -0,0 +1,21 @@
+type SignalListener = (done: () => void, event: any, signal: string) => (undefined | Promise)
+type cancelSubscription = () => void
+
+
+export declare module Graceful {
+    let exitOnDouble: boolean;
+    let timeout: number;
+
+    function on(event: string, listener: Function, deadly?: boolean): cancelSubscription;
+    function on(event: "SIGTERM", listener: SignalListener, deadly?: boolean): cancelSubscription;
+    function on(event: "SIGINT", listener: SignalListener, deadly?: boolean): cancelSubscription;
+    function on(event: "SIGBREAK", listener: SignalListener, deadly?: boolean): cancelSubscription;
+    function on(event: "SIGHUP", listener: SignalListener, deadly?: boolean): cancelSubscription;
+    function on(event: "exit", listener: SignalListener, deadly?: boolean): cancelSubscription;
+
+    function off(event: string, listener: Function): void;
+
+    function clear(signal?: string): void;
+
+    function exit(code?: number | string, signal?: string): void;
+}
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..9fdf747
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,950 @@
+{
+  "name": "node-graceful",
+  "version": "0.2.3",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "6to5": {
+      "version": "3.6.5",
+      "resolved": "https://registry.npmjs.org/6to5/-/6to5-3.6.5.tgz",
+      "integrity": "sha1-WeSfprhPiwW19f14tuIo9xtvd0M=",
+      "dev": true,
+      "requires": {
+        "acorn-6to5": "0.11.1-31",
+        "ast-types": "0.6.16",
+        "chalk": "0.5.1",
+        "chokidar": "0.12.6",
+        "commander": "2.6.0",
+        "core-js": "0.5.4",
+        "debug": "2.6.9",
+        "detect-indent": "3.0.0",
+        "estraverse": "1.9.1",
+        "esutils": "1.1.6",
+        "fs-readdir-recursive": "0.1.0",
+        "globals": "5.1.0",
+        "js-tokenizer": "1.3.3",
+        "lodash": "3.0.0",
+        "output-file-sync": "1.1.0",
+        "private": "0.1.6",
+        "regenerator-6to5": "0.8.10-1",
+        "regexpu": "1.1.0",
+        "roadrunner": "1.0.4",
+        "source-map": "0.1.43",
+        "source-map-support": "0.2.9",
+        "supports-color": "1.2.0",
+        "useragent": "2.2.1"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "0.2.1",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-0.2.1.tgz",
+          "integrity": "sha1-DY6UaWej2BQ/k+JOKYUl/BsiNfk=",
+          "dev": true
+        },
+        "ansi-styles": {
+          "version": "1.1.0",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-1.1.0.tgz",
+          "integrity": "sha1-6uy/Zs1waIJ2Cy9GkVgrj1XXp94=",
+          "dev": true
+        },
+        "chalk": {
+          "version": "0.5.1",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-0.5.1.tgz",
+          "integrity": "sha1-Zjs6ZItotV0EaQ1JFnqoN4WPIXQ=",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "1.1.0",
+            "escape-string-regexp": "1.0.5",
+            "has-ansi": "0.1.0",
+            "strip-ansi": "0.3.0",
+            "supports-color": "0.2.0"
+          },
+          "dependencies": {
+            "supports-color": {
+              "version": "0.2.0",
+              "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-0.2.0.tgz",
+              "integrity": "sha1-2S3iaU6z9nMjlz1649i1W0wiGQo=",
+              "dev": true
+            }
+          }
+        },
+        "commander": {
+          "version": "2.6.0",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.6.0.tgz",
+          "integrity": "sha1-nfflL7Kgyw+4kFjugMMQQiXzfh0=",
+          "dev": true
+        },
+        "esutils": {
+          "version": "1.1.6",
+          "resolved": "https://registry.npmjs.org/esutils/-/esutils-1.1.6.tgz",
+          "integrity": "sha1-wBzKqa5LiXxtDD4hCuUvPHqEQ3U=",
+          "dev": true
+        },
+        "has-ansi": {
+          "version": "0.1.0",
+          "resolved": "https://registry.npmjs.org/has-ansi/-/has-ansi-0.1.0.tgz",
+          "integrity": "sha1-hPJlqujA5qiKEtcCKJS3VoiUxi4=",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "0.2.1"
+          }
+        },
+        "strip-ansi": {
+          "version": "0.3.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-0.3.0.tgz",
+          "integrity": "sha1-JfSOoiynkYfzF0pNuHWTR7sSYiA=",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "0.2.1"
+          }
+        },
+        "supports-color": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-1.2.0.tgz",
+          "integrity": "sha1-/x7R5hFp0Gs88tWI4YixjYhH4X4=",
+          "dev": true
+        }
+      }
+    },
+    "acorn": {
+      "version": "5.3.0",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.3.0.tgz",
+      "integrity": "sha512-Yej+zOJ1Dm/IMZzzj78OntP/r3zHEaKcyNoU2lAaxPtrseM6rF0xwqoz5Q5ysAiED9hTjI2hgtvLXitlCN1/Ug==",
+      "dev": true
+    },
+    "acorn-6to5": {
+      "version": "0.11.1-31",
+      "resolved": "https://registry.npmjs.org/acorn-6to5/-/acorn-6to5-0.11.1-31.tgz",
+      "integrity": "sha1-JoZKcB03UAebYlnaXfFgNvu0ZPs=",
+      "dev": true
+    },
+    "amdefine": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/amdefine/-/amdefine-1.0.1.tgz",
+      "integrity": "sha1-SlKCrBZHKek2Gbz9OtFR+BfOkfU=",
+      "dev": true
+    },
+    "ansi-regex": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
+      "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
+      "dev": true
+    },
+    "ansi-styles": {
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-2.2.1.tgz",
+      "integrity": "sha1-tDLdM1i2NM914eRmQ2gkBTPB3b4=",
+      "dev": true
+    },
+    "argparse": {
+      "version": "1.0.9",
+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.9.tgz",
+      "integrity": "sha1-c9g7wmP4bpf4zE9rrhsOkKfSLIY=",
+      "dev": true,
+      "requires": {
+        "sprintf-js": "1.0.3"
+      }
+    },
+    "ast-types": {
+      "version": "0.6.16",
+      "resolved": "https://registry.npmjs.org/ast-types/-/ast-types-0.6.16.tgz",
+      "integrity": "sha1-BCBbcu3dGVqP6qCB8R0ClKJN7ZM=",
+      "dev": true
+    },
+    "async-each": {
+      "version": "0.1.6",
+      "resolved": "https://registry.npmjs.org/async-each/-/async-each-0.1.6.tgz",
+      "integrity": "sha1-tn6Z7c3fllQeRK9WKQzX1cbnBDk=",
+      "dev": true
+    },
+    "babel-code-frame": {
+      "version": "6.26.0",
+      "resolved": "https://registry.npmjs.org/babel-code-frame/-/babel-code-frame-6.26.0.tgz",
+      "integrity": "sha1-Y/1D99weO7fONZR9uP42mj9Yx0s=",
+      "dev": true,
+      "requires": {
+        "chalk": "1.1.3",
+        "esutils": "2.0.2",
+        "js-tokens": "3.0.2"
+      },
+      "dependencies": {
+        "chalk": {
+          "version": "1.1.3",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+          "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "2.2.1",
+            "escape-string-regexp": "1.0.5",
+            "has-ansi": "2.0.0",
+            "strip-ansi": "3.0.1",
+            "supports-color": "2.0.0"
+          }
+        }
+      }
+    },
+    "balanced-match": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
+      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
+      "dev": true
+    },
+    "brace-expansion": {
+      "version": "1.1.8",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.8.tgz",
+      "integrity": "sha1-wHshHHyVLsH479Uad+8NHTmQopI=",
+      "dev": true,
+      "requires": {
+        "balanced-match": "1.0.0",
+        "concat-map": "0.0.1"
+      }
+    },
+    "builtin-modules": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/builtin-modules/-/builtin-modules-1.1.1.tgz",
+      "integrity": "sha1-Jw8HbFpywC9bZaR9+Uxf46J4iS8=",
+      "dev": true
+    },
+    "chalk": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.3.0.tgz",
+      "integrity": "sha512-Az5zJR2CBujap2rqXGaJKaPHyJ0IrUimvYNX+ncCy8PJP4ltOGTrHUIo097ZaL2zMeKYpiCdqDvS6zdrTFok3Q==",
+      "dev": true,
+      "requires": {
+        "ansi-styles": "3.2.0",
+        "escape-string-regexp": "1.0.5",
+        "supports-color": "4.5.0"
+      },
+      "dependencies": {
+        "ansi-styles": {
+          "version": "3.2.0",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.0.tgz",
+          "integrity": "sha512-NnSOmMEYtVR2JVMIGTzynRkkaxtiq1xnFBcdQD/DnNCYPoEPsVJhM98BDyaoNOQIi7p4okdi3E27eN7GQbsUug==",
+          "dev": true,
+          "requires": {
+            "color-convert": "1.9.1"
+          }
+        },
+        "supports-color": {
+          "version": "4.5.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-4.5.0.tgz",
+          "integrity": "sha1-vnoN5ITexcXN34s9WRJQRJEvY1s=",
+          "dev": true,
+          "requires": {
+            "has-flag": "2.0.0"
+          }
+        }
+      }
+    },
+    "chokidar": {
+      "version": "0.12.6",
+      "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-0.12.6.tgz",
+      "integrity": "sha1-viBPW5Y04AkxElbl1ujg5QgoTS8=",
+      "dev": true,
+      "requires": {
+        "async-each": "0.1.6",
+        "fsevents": "0.3.8",
+        "readdirp": "1.3.0"
+      }
+    },
+    "color-convert": {
+      "version": "1.9.1",
+      "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.1.tgz",
+      "integrity": "sha512-mjGanIiwQJskCC18rPR6OmrZ6fm2Lc7PeGFYwCmy5J34wC6F1PzdGL6xeMfmgicfYcNLGuVFA3WzXtIDCQSZxQ==",
+      "dev": true,
+      "requires": {
+        "color-name": "1.1.3"
+      }
+    },
+    "color-name": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.3.tgz",
+      "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=",
+      "dev": true
+    },
+    "commander": {
+      "version": "2.13.0",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-2.13.0.tgz",
+      "integrity": "sha512-MVuS359B+YzaWqjCL/c+22gfryv+mCBPHAv3zyVI2GN8EY6IRP8VwtasXn8jyyhvvq84R4ImN1OKRtcbIasjYA==",
+      "dev": true
+    },
+    "commoner": {
+      "version": "0.10.8",
+      "resolved": "https://registry.npmjs.org/commoner/-/commoner-0.10.8.tgz",
+      "integrity": "sha1-NPw2cs0kOT6LtH5wyqApOBH08sU=",
+      "dev": true,
+      "requires": {
+        "commander": "2.13.0",
+        "detective": "4.7.1",
+        "glob": "5.0.15",
+        "graceful-fs": "4.1.11",
+        "iconv-lite": "0.4.19",
+        "mkdirp": "0.5.1",
+        "private": "0.1.6",
+        "q": "1.5.1",
+        "recast": "0.11.23"
+      },
+      "dependencies": {
+        "glob": {
+          "version": "5.0.15",
+          "resolved": "https://registry.npmjs.org/glob/-/glob-5.0.15.tgz",
+          "integrity": "sha1-G8k2ueAvSmA/zCIuz3Yz0wuLk7E=",
+          "dev": true,
+          "requires": {
+            "inflight": "1.0.6",
+            "inherits": "2.0.3",
+            "minimatch": "3.0.4",
+            "once": "1.4.0",
+            "path-is-absolute": "1.0.1"
+          }
+        },
+        "graceful-fs": {
+          "version": "4.1.11",
+          "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.1.11.tgz",
+          "integrity": "sha1-Dovf5NHduIVNZOBOp8AOKgJuVlg=",
+          "dev": true
+        }
+      }
+    },
+    "concat-map": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
+      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
+      "dev": true
+    },
+    "core-js": {
+      "version": "0.5.4",
+      "resolved": "https://registry.npmjs.org/core-js/-/core-js-0.5.4.tgz",
+      "integrity": "sha1-BKnyoLshlG2YFkY0tKe5kKOIEpY=",
+      "dev": true
+    },
+    "core-util-is": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
+      "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=",
+      "dev": true
+    },
+    "debug": {
+      "version": "2.6.9",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+      "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+      "dev": true,
+      "requires": {
+        "ms": "2.0.0"
+      }
+    },
+    "defined": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/defined/-/defined-1.0.0.tgz",
+      "integrity": "sha1-yY2bzvdWdBiOEQlpFRGZ45sfppM=",
+      "dev": true
+    },
+    "detect-indent": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/detect-indent/-/detect-indent-3.0.0.tgz",
+      "integrity": "sha1-ehLEthvk68FwzW1BbOQ3VBJGN9g=",
+      "dev": true,
+      "requires": {
+        "get-stdin": "3.0.2",
+        "minimist": "1.2.0",
+        "repeating": "1.1.3"
+      }
+    },
+    "detective": {
+      "version": "4.7.1",
+      "resolved": "https://registry.npmjs.org/detective/-/detective-4.7.1.tgz",
+      "integrity": "sha512-H6PmeeUcZloWtdt4DAkFyzFL94arpHr3NOwwmVILFiy+9Qd4JTxxXrzfyGk/lmct2qVGBwTSwSXagqu2BxmWig==",
+      "dev": true,
+      "requires": {
+        "acorn": "5.3.0",
+        "defined": "1.0.0"
+      }
+    },
+    "diff": {
+      "version": "3.4.0",
+      "resolved": "https://registry.npmjs.org/diff/-/diff-3.4.0.tgz",
+      "integrity": "sha512-QpVuMTEoJMF7cKzi6bvWhRulU1fZqZnvyVQgNhPaxxuTYwyjn/j1v9falseQ/uXWwPnO56RBfwtg4h/EQXmucA==",
+      "dev": true
+    },
+    "escape-string-regexp": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
+      "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=",
+      "dev": true
+    },
+    "esprima": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/esprima/-/esprima-4.0.0.tgz",
+      "integrity": "sha512-oftTcaMu/EGrEIu904mWteKIv8vMuOgGYo7EhVJJN00R/EED9DCua/xxHRdYnKtcECzVg7xOWhflvJMnqcFZjw==",
+      "dev": true
+    },
+    "estraverse": {
+      "version": "1.9.1",
+      "resolved": "https://registry.npmjs.org/estraverse/-/estraverse-1.9.1.tgz",
+      "integrity": "sha1-VTp0gp73Y+phU4B/hrkMzeXjIjE=",
+      "dev": true
+    },
+    "esutils": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/esutils/-/esutils-2.0.2.tgz",
+      "integrity": "sha1-Cr9PHKpbyx96nYrMbepPqqBLrJs=",
+      "dev": true
+    },
+    "fs-readdir-recursive": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/fs-readdir-recursive/-/fs-readdir-recursive-0.1.0.tgz",
+      "integrity": "sha1-QrIwNHUxdK5Xu4EfMsOld3OjLj8=",
+      "dev": true
+    },
+    "fs.realpath": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
+      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8=",
+      "dev": true
+    },
+    "fsevents": {
+      "version": "0.3.8",
+      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-0.3.8.tgz",
+      "integrity": "sha1-mZLxAyySXIKVVNDVmAHcoDE6U1Y=",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "nan": "2.8.0"
+      }
+    },
+    "get-stdin": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/get-stdin/-/get-stdin-3.0.2.tgz",
+      "integrity": "sha1-wc7SS5A5s43thb3xYeV3E7bdSr4=",
+      "dev": true
+    },
+    "glob": {
+      "version": "7.1.2",
+      "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.2.tgz",
+      "integrity": "sha512-MJTUg1kjuLeQCJ+ccE4Vpa6kKVXkPYJ2mOCQyUuKLcLQsdrMCpBPUi8qVE6+YuaJkozeA9NusTAw3hLr8Xe5EQ==",
+      "dev": true,
+      "requires": {
+        "fs.realpath": "1.0.0",
+        "inflight": "1.0.6",
+        "inherits": "2.0.3",
+        "minimatch": "3.0.4",
+        "once": "1.4.0",
+        "path-is-absolute": "1.0.1"
+      }
+    },
+    "globals": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/globals/-/globals-5.1.0.tgz",
+      "integrity": "sha1-Tcr+TpCNZmuuCGI0vLNKtVPlUk4=",
+      "dev": true
+    },
+    "graceful-fs": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-2.0.3.tgz",
+      "integrity": "sha1-fNLNsiiko/Nule+mzBQt59GhNtA=",
+      "dev": true
+    },
+    "has-ansi": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/has-ansi/-/has-ansi-2.0.0.tgz",
+      "integrity": "sha1-NPUEnOHs3ysGSa8+8k5F7TVBbZE=",
+      "dev": true,
+      "requires": {
+        "ansi-regex": "2.1.1"
+      }
+    },
+    "has-flag": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-2.0.0.tgz",
+      "integrity": "sha1-6CB68cx7MNRGzHC3NLXovhj4jVE=",
+      "dev": true
+    },
+    "iconv-lite": {
+      "version": "0.4.19",
+      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.19.tgz",
+      "integrity": "sha512-oTZqweIP51xaGPI4uPa56/Pri/480R+mo7SeU+YETByQNhDG55ycFyNLIgta9vXhILrxXDmF7ZGhqZIcuN0gJQ==",
+      "dev": true
+    },
+    "inflight": {
+      "version": "1.0.6",
+      "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
+      "integrity": "sha1-Sb1jMdfQLQwJvJEKEHW6gWW1bfk=",
+      "dev": true,
+      "requires": {
+        "once": "1.4.0",
+        "wrappy": "1.0.2"
+      }
+    },
+    "inherits": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
+      "integrity": "sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=",
+      "dev": true
+    },
+    "is-finite": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/is-finite/-/is-finite-1.0.2.tgz",
+      "integrity": "sha1-zGZ3aVYCvlUO8R6LSqYwU0K20Ko=",
+      "dev": true,
+      "requires": {
+        "number-is-nan": "1.0.1"
+      }
+    },
+    "isarray": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/isarray/-/isarray-0.0.1.tgz",
+      "integrity": "sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8=",
+      "dev": true
+    },
+    "js-tokenizer": {
+      "version": "1.3.3",
+      "resolved": "https://registry.npmjs.org/js-tokenizer/-/js-tokenizer-1.3.3.tgz",
+      "integrity": "sha1-N7kl7w0D3xsf/CBc9e43xjKE9Iw=",
+      "dev": true
+    },
+    "js-tokens": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-3.0.2.tgz",
+      "integrity": "sha1-mGbfOVECEw449/mWvOtlRDIJwls=",
+      "dev": true
+    },
+    "js-yaml": {
+      "version": "3.10.0",
+      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.10.0.tgz",
+      "integrity": "sha512-O2v52ffjLa9VeM43J4XocZE//WT9N0IiwDa3KSHH7Tu8CtH+1qM8SIZvnsTh6v+4yFy5KUY3BHUVwjpfAWsjIA==",
+      "dev": true,
+      "requires": {
+        "argparse": "1.0.9",
+        "esprima": "4.0.0"
+      }
+    },
+    "jsesc": {
+      "version": "0.5.0",
+      "resolved": "https://registry.npmjs.org/jsesc/-/jsesc-0.5.0.tgz",
+      "integrity": "sha1-597mbjXW/Bb3EP6R1c9p9w8IkR0=",
+      "dev": true
+    },
+    "lodash": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-3.0.0.tgz",
+      "integrity": "sha1-STNktxg6NxBNZSVfOLD+WGnL4P0=",
+      "dev": true
+    },
+    "lru-cache": {
+      "version": "2.7.3",
+      "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-2.7.3.tgz",
+      "integrity": "sha1-bUUk6LlV+V1PW1iFHOId1y+06VI=",
+      "dev": true
+    },
+    "minimatch": {
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
+      "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
+      "dev": true,
+      "requires": {
+        "brace-expansion": "1.1.8"
+      }
+    },
+    "minimist": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
+      "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
+      "dev": true
+    },
+    "mkdirp": {
+      "version": "0.5.1",
+      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
+      "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
+      "dev": true,
+      "requires": {
+        "minimist": "0.0.8"
+      },
+      "dependencies": {
+        "minimist": {
+          "version": "0.0.8",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
+          "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
+          "dev": true
+        }
+      }
+    },
+    "ms": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+      "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=",
+      "dev": true
+    },
+    "nan": {
+      "version": "2.8.0",
+      "resolved": "https://registry.npmjs.org/nan/-/nan-2.8.0.tgz",
+      "integrity": "sha1-7XFfP+neArV6XmJS2QqWZ14fCFo=",
+      "dev": true,
+      "optional": true
+    },
+    "number-is-nan": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/number-is-nan/-/number-is-nan-1.0.1.tgz",
+      "integrity": "sha1-CXtgK1NCKlIsGvuHkDGDNpQaAR0=",
+      "dev": true
+    },
+    "once": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
+      "integrity": "sha1-WDsap3WWHUsROsF9nFC6753Xa9E=",
+      "dev": true,
+      "requires": {
+        "wrappy": "1.0.2"
+      }
+    },
+    "os-tmpdir": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/os-tmpdir/-/os-tmpdir-1.0.2.tgz",
+      "integrity": "sha1-u+Z0BseaqFxc/sdm/lc0VV36EnQ=",
+      "dev": true
+    },
+    "output-file-sync": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/output-file-sync/-/output-file-sync-1.1.0.tgz",
+      "integrity": "sha1-sQ3GCJP4PeheXVU6djJwWSlf+NY=",
+      "dev": true,
+      "requires": {
+        "mkdirp": "0.5.1",
+        "xtend": "4.0.1"
+      }
+    },
+    "path-is-absolute": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
+      "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18=",
+      "dev": true
+    },
+    "path-parse": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.5.tgz",
+      "integrity": "sha1-PBrfhx6pzWyUMbbqK9dKD/BVxME=",
+      "dev": true
+    },
+    "private": {
+      "version": "0.1.6",
+      "resolved": "https://registry.npmjs.org/private/-/private-0.1.6.tgz",
+      "integrity": "sha1-VcapdtD5uvuZJIUTUP5HubX7t8E=",
+      "dev": true
+    },
+    "q": {
+      "version": "1.5.1",
+      "resolved": "https://registry.npmjs.org/q/-/q-1.5.1.tgz",
+      "integrity": "sha1-fjL3W0E4EpHQRhHxvxQQmsAGUdc=",
+      "dev": true
+    },
+    "readable-stream": {
+      "version": "1.0.34",
+      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-1.0.34.tgz",
+      "integrity": "sha1-Elgg40vIQtLyqq+v5MKRbuMsFXw=",
+      "dev": true,
+      "requires": {
+        "core-util-is": "1.0.2",
+        "inherits": "2.0.3",
+        "isarray": "0.0.1",
+        "string_decoder": "0.10.31"
+      }
+    },
+    "readdirp": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/readdirp/-/readdirp-1.3.0.tgz",
+      "integrity": "sha1-6vGptGO+moGQ/JrhY6oayTSqNAs=",
+      "dev": true,
+      "requires": {
+        "graceful-fs": "2.0.3",
+        "minimatch": "0.2.14",
+        "readable-stream": "1.0.34"
+      },
+      "dependencies": {
+        "minimatch": {
+          "version": "0.2.14",
+          "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-0.2.14.tgz",
+          "integrity": "sha1-x054BXT2PG+aCQ6Q775u9TpqdWo=",
+          "dev": true,
+          "requires": {
+            "lru-cache": "2.7.3",
+            "sigmund": "1.0.1"
+          }
+        }
+      }
+    },
+    "recast": {
+      "version": "0.11.23",
+      "resolved": "https://registry.npmjs.org/recast/-/recast-0.11.23.tgz",
+      "integrity": "sha1-RR/TAEqx5N+bTktmN2sqIZEkYtM=",
+      "dev": true,
+      "requires": {
+        "ast-types": "0.9.6",
+        "esprima": "3.1.3",
+        "private": "0.1.6",
+        "source-map": "0.5.7"
+      },
+      "dependencies": {
+        "ast-types": {
+          "version": "0.9.6",
+          "resolved": "https://registry.npmjs.org/ast-types/-/ast-types-0.9.6.tgz",
+          "integrity": "sha1-ECyenpAF0+fjgpvwxPok7oYu6bk=",
+          "dev": true
+        },
+        "esprima": {
+          "version": "3.1.3",
+          "resolved": "https://registry.npmjs.org/esprima/-/esprima-3.1.3.tgz",
+          "integrity": "sha1-/cpRzuYTOJXjyI1TXOSdv/YqRjM=",
+          "dev": true
+        },
+        "source-map": {
+          "version": "0.5.7",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
+          "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=",
+          "dev": true
+        }
+      }
+    },
+    "regenerate": {
+      "version": "1.3.3",
+      "resolved": "https://registry.npmjs.org/regenerate/-/regenerate-1.3.3.tgz",
+      "integrity": "sha512-jVpo1GadrDAK59t/0jRx5VxYWQEDkkEKi6+HjE3joFVLfDOh9Xrdh0dF1eSq+BI/SwvTQ44gSscJ8N5zYL61sg==",
+      "dev": true
+    },
+    "regenerator-6to5": {
+      "version": "0.8.10-1",
+      "resolved": "https://registry.npmjs.org/regenerator-6to5/-/regenerator-6to5-0.8.10-1.tgz",
+      "integrity": "sha1-RvdkcGUYFyiXxN6OlhB8j79+tFI=",
+      "dev": true,
+      "requires": {
+        "ast-types": "0.6.16",
+        "commoner": "0.10.8",
+        "private": "0.1.6",
+        "through": "2.3.8"
+      }
+    },
+    "regexpu": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/regexpu/-/regexpu-1.1.0.tgz",
+      "integrity": "sha1-+vzfNKWb6xc99tmX0I0D0F3avo0=",
+      "dev": true,
+      "requires": {
+        "recast": "0.9.18",
+        "regenerate": "1.3.3",
+        "regjsgen": "0.2.0",
+        "regjsparser": "0.1.5"
+      },
+      "dependencies": {
+        "esprima-fb": {
+          "version": "10001.1.0-dev-harmony-fb",
+          "resolved": "https://registry.npmjs.org/esprima-fb/-/esprima-fb-10001.1.0-dev-harmony-fb.tgz",
+          "integrity": "sha1-9++0UtPIAG3eazxZZ4YE9xFKiCw=",
+          "dev": true
+        },
+        "recast": {
+          "version": "0.9.18",
+          "resolved": "https://registry.npmjs.org/recast/-/recast-0.9.18.tgz",
+          "integrity": "sha1-9wkhu59zfY4fsGpEAxW9fsFFh8k=",
+          "dev": true,
+          "requires": {
+            "ast-types": "0.6.16",
+            "esprima-fb": "10001.1.0-dev-harmony-fb",
+            "private": "0.1.6",
+            "source-map": "0.1.43"
+          }
+        }
+      }
+    },
+    "regjsgen": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/regjsgen/-/regjsgen-0.2.0.tgz",
+      "integrity": "sha1-bAFq3qxVT3WCP+N6wFuS1aTtsfc=",
+      "dev": true
+    },
+    "regjsparser": {
+      "version": "0.1.5",
+      "resolved": "https://registry.npmjs.org/regjsparser/-/regjsparser-0.1.5.tgz",
+      "integrity": "sha1-fuj4Tcb6eS0/0K4ijSS9lJ6tIFw=",
+      "dev": true,
+      "requires": {
+        "jsesc": "0.5.0"
+      }
+    },
+    "repeating": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/repeating/-/repeating-1.1.3.tgz",
+      "integrity": "sha1-PUEUIYh3U3SU+X93+Xhfq4EPpKw=",
+      "dev": true,
+      "requires": {
+        "is-finite": "1.0.2"
+      }
+    },
+    "resolve": {
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.5.0.tgz",
+      "integrity": "sha512-hgoSGrc3pjzAPHNBg+KnFcK2HwlHTs/YrAGUr6qgTVUZmXv1UEXXl0bZNBKMA9fud6lRYFdPGz0xXxycPzmmiw==",
+      "dev": true,
+      "requires": {
+        "path-parse": "1.0.5"
+      }
+    },
+    "roadrunner": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/roadrunner/-/roadrunner-1.0.4.tgz",
+      "integrity": "sha1-pp5dkssQZ+koGiECp23TcUC87S4=",
+      "dev": true
+    },
+    "semver": {
+      "version": "5.5.0",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-5.5.0.tgz",
+      "integrity": "sha512-4SJ3dm0WAwWy/NVeioZh5AntkdJoWKxHxcmyP622fOkgHa4z3R0TdBJICINyaSDE6uNwVc8gZr+ZinwZAH4xIA==",
+      "dev": true
+    },
+    "sigmund": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/sigmund/-/sigmund-1.0.1.tgz",
+      "integrity": "sha1-P/IfGYytIXX587eBhT/ZTQ0ZtZA=",
+      "dev": true
+    },
+    "source-map": {
+      "version": "0.1.43",
+      "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.1.43.tgz",
+      "integrity": "sha1-wkvBRspRfBRx9drL4lcbK3+eM0Y=",
+      "dev": true,
+      "requires": {
+        "amdefine": "1.0.1"
+      }
+    },
+    "source-map-support": {
+      "version": "0.2.9",
+      "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.2.9.tgz",
+      "integrity": "sha1-C/s72uaA82tRgVFgu5UNCxf0okg=",
+      "dev": true,
+      "requires": {
+        "source-map": "0.1.32"
+      },
+      "dependencies": {
+        "source-map": {
+          "version": "0.1.32",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.1.32.tgz",
+          "integrity": "sha1-yLbBZ3l7pHQKjqMyUhYv8IWRsmY=",
+          "dev": true,
+          "requires": {
+            "amdefine": "1.0.1"
+          }
+        }
+      }
+    },
+    "sprintf-js": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
+      "integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=",
+      "dev": true
+    },
+    "string_decoder": {
+      "version": "0.10.31",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz",
+      "integrity": "sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=",
+      "dev": true
+    },
+    "strip-ansi": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+      "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
+      "dev": true,
+      "requires": {
+        "ansi-regex": "2.1.1"
+      }
+    },
+    "supports-color": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-2.0.0.tgz",
+      "integrity": "sha1-U10EXOa2Nj+kARcIRimZXp3zJMc=",
+      "dev": true
+    },
+    "through": {
+      "version": "2.3.8",
+      "resolved": "https://registry.npmjs.org/through/-/through-2.3.8.tgz",
+      "integrity": "sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU=",
+      "dev": true
+    },
+    "tmp": {
+      "version": "0.0.33",
+      "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.0.33.tgz",
+      "integrity": "sha512-jRCJlojKnZ3addtTOjdIqoRuPEKBvNXcGYqzO6zWZX8KfKEpnGY5jfggJQ3EjKuu8D4bJRr0y+cYJFmYbImXGw==",
+      "dev": true,
+      "requires": {
+        "os-tmpdir": "1.0.2"
+      }
+    },
+    "tslib": {
+      "version": "1.9.0",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.9.0.tgz",
+      "integrity": "sha512-f/qGG2tUkrISBlQZEjEqoZ3B2+npJjIf04H1wuAv9iA8i04Icp+61KRXxFdha22670NJopsZCIjhC3SnjPRKrQ==",
+      "dev": true
+    },
+    "tslint": {
+      "version": "5.9.1",
+      "resolved": "https://registry.npmjs.org/tslint/-/tslint-5.9.1.tgz",
+      "integrity": "sha1-ElX4ej/1frCw4fDmEKi0dIBGya4=",
+      "dev": true,
+      "requires": {
+        "babel-code-frame": "6.26.0",
+        "builtin-modules": "1.1.1",
+        "chalk": "2.3.0",
+        "commander": "2.13.0",
+        "diff": "3.4.0",
+        "glob": "7.1.2",
+        "js-yaml": "3.10.0",
+        "minimatch": "3.0.4",
+        "resolve": "1.5.0",
+        "semver": "5.5.0",
+        "tslib": "1.9.0",
+        "tsutils": "2.19.1"
+      }
+    },
+    "tsutils": {
+      "version": "2.19.1",
+      "resolved": "https://registry.npmjs.org/tsutils/-/tsutils-2.19.1.tgz",
+      "integrity": "sha512-1B3z4H4HddgzWptqLzwrJloDEsyBt8DvZhnFO14k7A4RsQL/UhEfQjD4hpcY5NpF3veBkjJhQJ8Bl7Xp96cN+A==",
+      "dev": true,
+      "requires": {
+        "tslib": "1.9.0"
+      }
+    },
+    "typescript": {
+      "version": "2.6.2",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-2.6.2.tgz",
+      "integrity": "sha1-PFtv1/beCRQmkCfwPAlGdY92c6Q=",
+      "dev": true
+    },
+    "useragent": {
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/useragent/-/useragent-2.2.1.tgz",
+      "integrity": "sha1-z1k+9PLRdYdei7ZY6pLhik/QbY4=",
+      "dev": true,
+      "requires": {
+        "lru-cache": "2.2.4",
+        "tmp": "0.0.33"
+      },
+      "dependencies": {
+        "lru-cache": {
+          "version": "2.2.4",
+          "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-2.2.4.tgz",
+          "integrity": "sha1-bGWGGb7PFAMdDQtZSxYELOTcBj0=",
+          "dev": true
+        }
+      }
+    },
+    "wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
+      "dev": true
+    },
+    "xtend": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
+      "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68=",
+      "dev": true
+    }
+  }
+}
diff --git a/package.json b/package.json
index a2d5b9d..bbb7323 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "node-graceful",
-  "version": "0.2.3",
+  "version": "0.2.4",
   "description": "Graceful process exit manager. allows waiting on multiple async services.",
   "main": "graceful.js",
   "repository": {
@@ -17,10 +17,17 @@
     "shutdown"
   ],
   "scripts": {
-    "test": "node tests/runner",
+    "test:unit": "node tests/runner",
+    "test:lint": "tslint -c tslint.json --fix tests/*.ts",
+    "test": "npm run test:unit && npm run test:lint",
     "transpile": "cat graceful.js | 6to5 > es5/index.js",
-    "prepublish": "npm run transpile"
+    "prepublish": "npm run test && npm run transpile"
   },
   "author": "mrbar42",
-  "license": "WTFPL"
+  "license": "WTFPL",
+  "devDependencies": {
+    "6to5": "3.6.5",
+    "tslint": "5.9.1",
+    "typescript": "2.6.2"
+  }
 }
diff --git a/tests/TypeScript.ts b/tests/TypeScript.ts
new file mode 100644
index 0000000..5344ca8
--- /dev/null
+++ b/tests/TypeScript.ts
@@ -0,0 +1,25 @@
+import {Graceful} from "../graceful";
+
+const listener = (done, event, signal) => {
+    done();
+};
+
+const listenerPromise = (done, event, signal) => Promise.resolve();
+
+Graceful.on("exit", listener);
+Graceful.on("exit", listener, true);
+Graceful.on("exit", listenerPromise);
+Graceful.on("exit", listenerPromise, true);
+
+Graceful.off("exit", listener);
+
+Graceful.clear();
+Graceful.clear("SIGTERM");
+
+Graceful.exit();
+Graceful.exit(1);
+Graceful.exit(0, "SIGTERM");
+Graceful.exit("SIGTERM");
+
+Graceful.exitOnDouble = true;
+Graceful.timeout = 30000;
diff --git a/tslint.json b/tslint.json
new file mode 100644
index 0000000..32fa6e5
--- /dev/null
+++ b/tslint.json
@@ -0,0 +1,9 @@
+{
+    "defaultSeverity": "error",
+    "extends": [
+        "tslint:recommended"
+    ],
+    "jsRules": {},
+    "rules": {},
+    "rulesDirectory": []
+}
\ No newline at end of file