diff --git a/package-lock.json b/package-lock.json
index 06ee06d8e..7ee8f8f8a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -525,24 +525,6 @@
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@@ -1473,12 +1466,130 @@
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+          "integrity": "sha1-RdG35QbHF93UgndaK3eSCjwMV6c=",
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@@ -1488,6 +1599,12 @@
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           "dev": true,
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@@ -1686,15 +1811,6 @@
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@@ -1877,6 +1984,12 @@
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@@ -2244,23 +2357,20 @@
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-        "pify": "2.3.0",
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@@ -2639,6 +2727,21 @@
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-    "path-exists": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-2.1.0.tgz",
-      "integrity": "sha1-D+tsZPD8UY2adU3V77YscCJ2H0s=",
-      "dev": true,
-      "requires": {
-        "pinkie-promise": "2.0.1"
-      }
-    },
     "path-is-absolute": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
@@ -2693,25 +2778,6 @@
       "integrity": "sha1-PBrfhx6pzWyUMbbqK9dKD/BVxME=",
       "dev": true
     },
-    "path-type": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/path-type/-/path-type-1.1.0.tgz",
-      "integrity": "sha1-WcRPfuSR2nBNpBXaWkBwuk+P5EE=",
-      "dev": true,
-      "requires": {
-        "graceful-fs": "4.1.11",
-        "pify": "2.3.0",
-        "pinkie-promise": "2.0.1"
-      },
-      "dependencies": {
-        "pify": {
-          "version": "2.3.0",
-          "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
-          "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw=",
-          "dev": true
-        }
-      }
-    },
     "performance-now": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/performance-now/-/performance-now-0.2.0.tgz",
@@ -2723,21 +2789,6 @@
       "integrity": "sha1-5aSs0sEB/fPZpNB/DbxNtJ3SgXY=",
       "dev": true
     },
-    "pinkie": {
-      "version": "2.0.4",
-      "resolved": "https://registry.npmjs.org/pinkie/-/pinkie-2.0.4.tgz",
-      "integrity": "sha1-clVrgM+g1IqXToDnckjoDtT3+HA=",
-      "dev": true
-    },
-    "pinkie-promise": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/pinkie-promise/-/pinkie-promise-2.0.1.tgz",
-      "integrity": "sha1-ITXW36ejWMBprJsXh3YogihFD/o=",
-      "dev": true,
-      "requires": {
-        "pinkie": "2.0.4"
-      }
-    },
     "pkg-to-id": {
       "version": "0.0.3",
       "resolved": "https://registry.npmjs.org/pkg-to-id/-/pkg-to-id-0.0.3.tgz",
@@ -2800,6 +2851,12 @@
       "resolved": "https://registry.npmjs.org/qs/-/qs-6.4.0.tgz",
       "integrity": "sha1-E+JtKK1rD/qpExLNO/cI7TUecjM="
     },
+    "quick-lru": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/quick-lru/-/quick-lru-1.1.0.tgz",
+      "integrity": "sha1-Q2CxfGETatOAeDl/8RQW4Ybc+7g=",
+      "dev": true
+    },
     "rc": {
       "version": "1.2.2",
       "resolved": "https://registry.npmjs.org/rc/-/rc-1.2.2.tgz",
@@ -2829,27 +2886,6 @@
         "mute-stream": "0.0.7"
       }
     },
-    "read-pkg": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/read-pkg/-/read-pkg-1.1.0.tgz",
-      "integrity": "sha1-9f+qXs0pyzHAR0vKfXVra7KePyg=",
-      "dev": true,
-      "requires": {
-        "load-json-file": "1.1.0",
-        "normalize-package-data": "2.4.0",
-        "path-type": "1.1.0"
-      }
-    },
-    "read-pkg-up": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/read-pkg-up/-/read-pkg-up-1.0.1.tgz",
-      "integrity": "sha1-nWPBMnbAZZGNV/ACpX9AobZD+wI=",
-      "dev": true,
-      "requires": {
-        "find-up": "1.1.2",
-        "read-pkg": "1.1.0"
-      }
-    },
     "readable-stream": {
       "version": "2.3.3",
       "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.3.tgz",
@@ -2864,16 +2900,6 @@
         "util-deprecate": "1.0.2"
       }
     },
-    "redent": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/redent/-/redent-1.0.0.tgz",
-      "integrity": "sha1-z5Fqsf1fHxbfsggi3W7H9zDCr94=",
-      "dev": true,
-      "requires": {
-        "indent-string": "2.1.0",
-        "strip-indent": "1.0.1"
-      }
-    },
     "registry-auth-token": {
       "version": "3.3.1",
       "resolved": "https://registry.npmjs.org/registry-auth-token/-/registry-auth-token-3.3.1.tgz",
@@ -2899,15 +2925,6 @@
       "integrity": "sha1-jcrkcOHIirwtYA//Sndihtp15jc=",
       "dev": true
     },
-    "repeating": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/repeating/-/repeating-2.0.1.tgz",
-      "integrity": "sha1-UhTFOpJtNVJwdSf7q0FdvAjQbdo=",
-      "dev": true,
-      "requires": {
-        "is-finite": "1.0.2"
-      }
-    },
     "request": {
       "version": "2.81.0",
       "resolved": "https://registry.npmjs.org/request/-/request-2.81.0.tgz",
@@ -3203,30 +3220,12 @@
         "ansi-regex": "2.1.1"
       }
     },
-    "strip-bom": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/strip-bom/-/strip-bom-2.0.0.tgz",
-      "integrity": "sha1-YhmoVhZSBJHzV4i9vxRHqZx+aw4=",
-      "dev": true,
-      "requires": {
-        "is-utf8": "0.2.1"
-      }
-    },
     "strip-eof": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/strip-eof/-/strip-eof-1.0.0.tgz",
       "integrity": "sha1-u0P/VZim6wXYm1n80SnJgzE2Br8=",
       "dev": true
     },
-    "strip-indent": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/strip-indent/-/strip-indent-1.0.1.tgz",
-      "integrity": "sha1-DHlipq3vp7vUrDZkYKY4VSrhoKI=",
-      "dev": true,
-      "requires": {
-        "get-stdin": "4.0.1"
-      }
-    },
     "strip-json-comments": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-2.0.1.tgz",
@@ -3290,12 +3289,6 @@
         "punycode": "1.4.1"
       }
     },
-    "trim-newlines": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/trim-newlines/-/trim-newlines-1.0.0.tgz",
-      "integrity": "sha1-WIeWa7WCpFA6QetST301ARgVphM=",
-      "dev": true
-    },
     "tslib": {
       "version": "1.7.1",
       "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.7.1.tgz",
diff --git a/src/agent/debuglet.ts b/src/agent/debuglet.ts
index 7802f6fa4..9bfee536c 100644
--- a/src/agent/debuglet.ts
+++ b/src/agent/debuglet.ts
@@ -293,9 +293,7 @@ export class Debuglet extends EventEmitter {
     try {
       fileStats =
           await scanner.scan(!id, that.config.workingDirectory, /.js$|.map$/);
-      fileStats.errors().forEach(err => {
-        that.logger.warn(err);
-      });
+      fileStats.errors().forEach(that.logger.warn);
     } catch (err) {
       that.logger.error('Error scanning the filesystem.', err);
       that.emit('initError', err);
diff --git a/src/agent/io/scanner.ts b/src/agent/io/scanner.ts
index e64ff350f..ddd93fc3c 100644
--- a/src/agent/io/scanner.ts
+++ b/src/agent/io/scanner.ts
@@ -253,11 +253,8 @@ function statsForFile(
         if (error) {
           reject(error);
         } else {
-          let d: string|undefined;
-          if (shouldHash) {
-            d = shasum.digest('hex');
-          }
-          resolve({hash: d, lines});
+          const hash = shouldHash ? shasum.digest('hex') : undefined;
+          resolve({hash, lines});
         }
       });
     });