diff --git a/packages/jest-haste-map/src/lib/RecrawlWarning.js b/packages/jest-haste-map/src/lib/RecrawlWarning.js
new file mode 100644
index 000000000000..2e65459b6f9d
--- /dev/null
+++ b/packages/jest-haste-map/src/lib/RecrawlWarning.js
@@ -0,0 +1,51 @@
+'use strict';
+
+class RecrawlWarning {
+  constructor(root, count) {
+    this.root = root;
+    this.count = count;
+  }
+
+  static findByRoot(root) {
+    for (let i = 0; i < this.RECRAWL_WARNINGS.length; i++) {
+      const warning = this.RECRAWL_WARNINGS[i];
+      if (warning.root === root) {
+        return warning;
+      }
+    }
+  }
+
+  static isRecrawlWarningDupe(warningMessage) {
+    if (typeof warningMessage !== 'string') {
+      return false;
+    }
+    const match = warningMessage.match(this.REGEXP);
+    if (!match) {
+      return false;
+    }
+    const count = Number(match[1]);
+    const root = match[2];
+
+    const warning = this.findByRoot(root);
+
+    if (warning) {
+      // only keep the highest count, assume count to either stay the same or
+      // increase.
+      if (warning.count >= count) {
+        return true;
+      } else {
+        // update the existing warning to the latest (highest) count
+        warning.count = count;
+        return false;
+      }
+    } else {
+      this.RECRAWL_WARNINGS.push(new RecrawlWarning(root, count));
+      return false;
+    }
+  }
+}
+
+RecrawlWarning.RECRAWL_WARNINGS = [];
+RecrawlWarning.REGEXP = /Recrawled this watch (\d+) times, most recently because:\n([^:]+)/;
+
+module.exports = RecrawlWarning;
diff --git a/packages/jest-haste-map/src/lib/WatchmanWatcher.js b/packages/jest-haste-map/src/lib/WatchmanWatcher.js
index 548843543d9f..b2172547a9ce 100644
--- a/packages/jest-haste-map/src/lib/WatchmanWatcher.js
+++ b/packages/jest-haste-map/src/lib/WatchmanWatcher.js
@@ -8,15 +8,16 @@
 import assert from 'assert';
 import {EventEmitter} from 'events';
 import path from 'path';
+import anymatch from 'anymatch';
 import watchman from 'fb-watchman';
 import * as fs from 'graceful-fs';
-import common from 'sane/src/common';
-import RecrawlWarning from 'sane/src/utils/recrawl-warning-dedupe';
+import micromatch from 'micromatch';
+import RecrawlWarning from './RecrawlWarning';
 
-const CHANGE_EVENT = common.CHANGE_EVENT;
-const DELETE_EVENT = common.DELETE_EVENT;
-const ADD_EVENT = common.ADD_EVENT;
-const ALL_EVENT = common.ALL_EVENT;
+const CHANGE_EVENT = 'change';
+const DELETE_EVENT = 'delete';
+const ADD_EVENT = 'add';
+const ALL_EVENT = 'all';
 const SUB_NAME = 'sane-sub';
 
 /**
@@ -29,7 +30,7 @@ const SUB_NAME = 'sane-sub';
  */
 
 export default function WatchmanWatcher(dir, opts) {
-  common.assignOptions(this, opts);
+  assignOptions(this, opts);
   this.root = path.resolve(dir);
   this.init();
 }
@@ -226,7 +227,7 @@ WatchmanWatcher.prototype.handleFileChange = function (changeDescriptor) {
 
   if (
     !(self.capabilities.wildmatch && !this.hasIgnore) &&
-    !common.isFileIncluded(this.globs, this.dot, this.doIgnore, relativePath)
+    !isFileIncluded(this.globs, this.dot, this.doIgnore, relativePath)
   ) {
     return;
   }
@@ -321,3 +322,33 @@ function handleWarning(resp) {
     return false;
   }
 }
+
+function assignOptions(watcher, opts) {
+  opts = opts || {};
+  watcher.globs = opts.glob || [];
+  watcher.dot = opts.dot || false;
+  watcher.ignored = opts.ignored || false;
+
+  if (!Array.isArray(watcher.globs)) {
+    watcher.globs = [watcher.globs];
+  }
+  watcher.hasIgnore =
+    Boolean(opts.ignored) && !(Array.isArray(opts) && opts.length > 0);
+  watcher.doIgnore = opts.ignored ? anymatch(opts.ignored) : () => false;
+
+  if (opts.watchman && opts.watchmanPath) {
+    watcher.watchmanPath = opts.watchmanPath;
+  }
+
+  return opts;
+}
+
+function isFileIncluded(globs, dot, doIgnore, relativePath) {
+  if (doIgnore(relativePath)) {
+    return false;
+  }
+  return globs.length
+    ? micromatch.some(relativePath, globs, {dot})
+    : dot || micromatch.some(relativePath, '**/*');
+}
+