add rollout strategy

src/core.ts

@@ -14,7 +14,7 @@ export const PushyModule =
     : NativeModules.Pushy;
 
 if (!PushyModule) {
-  throw new Error('react-native-update模块无法加载，请对照安装文档检查配置。');
+  throw new Error('react-native-update 模块无法加载，请对照安装文档检查配置。');
 }
 
 const PushyConstants = isTurboModuleEnabled
@@ -33,7 +33,7 @@ let uuid = PushyConstants.uuid;
 
 if (Platform.OS === 'android' && !PushyConstants.isUsingBundleUrl) {
   throw new Error(
-    'react-native-update模块无法加载，请对照文档检查Bundle URL的配置',
+    'react-native-update 模块无法加载，请对照文档检查 Bundle URL 的配置',
   );
 }
 

src/isInRollout.ts

@@ -0,0 +1,77 @@
+/* eslint-disable no-fallthrough */
+
+import { cInfo } from './core';
+
+/* eslint-disable no-bitwise */
+function murmurhash3_32_gc(key: string, seed = 0) {
+  let remainder, bytes, h1, h1b, c1, c2, k1, i;
+
+  remainder = key.length & 3; // key.length % 4
+  bytes = key.length - remainder;
+  h1 = seed;
+  c1 = 0xcc9e2d51;
+  c2 = 0x1b873593;
+  i = 0;
+
+  while (i < bytes) {
+    k1 =
+      (key.charCodeAt(i) & 0xff) |
+      ((key.charCodeAt(++i) & 0xff) << 8) |
+      ((key.charCodeAt(++i) & 0xff) << 16) |
+      ((key.charCodeAt(++i) & 0xff) << 24);
+    ++i;
+
+    ((k1 & 0xffff) * c1 + ((((k1 >>> 16) * c1) & 0xffff) << 16)) & 0xffffffff;
+    k1 = (k1 << 15) | (k1 >>> 17);
+    k1 =
+      ((k1 & 0xffff) * c2 + ((((k1 >>> 16) * c2) & 0xffff) << 16)) & 0xffffffff;
+
+    h1 ^= k1;
+    h1 = (h1 << 13) | (h1 >>> 19);
+    h1b =
+      ((h1 & 0xffff) * 5 + ((((h1 >>> 16) * 5) & 0xffff) << 16)) & 0xffffffff;
+    h1 = (h1b & 0xffff) + 0x6b64 + ((((h1b >>> 16) + 0xe654) & 0xffff) << 16);
+  }
+
+  k1 = 0;
+
+  switch (remainder) {
+    case 3:
+      k1 ^= (key.charCodeAt(i + 2) & 0xff) << 16;
+    case 2:
+      k1 ^= (key.charCodeAt(i + 1) & 0xff) << 8;
+    case 1:
+      k1 ^= key.charCodeAt(i) & 0xff;
+
+      k1 =
+        ((k1 & 0xffff) * c1 + ((((k1 >>> 16) * c1) & 0xffff) << 16)) &
+        0xffffffff;
+      k1 = (k1 << 15) | (k1 >>> 17);
+      k1 =
+        ((k1 & 0xffff) * c2 + ((((k1 >>> 16) * c2) & 0xffff) << 16)) &
+        0xffffffff;
+      h1 ^= k1;
+  }
+
+  h1 ^= key.length;
+
+  h1 ^= h1 >>> 16;
+  h1 =
+    ((h1 & 0xffff) * 0x85ebca6b +
+      ((((h1 >>> 16) * 0x85ebca6b) & 0xffff) << 16)) &
+    0xffffffff;
+  h1 ^= h1 >>> 13;
+  h1 =
+    ((h1 & 0xffff) * 0xc2b2ae35 +
+      ((((h1 >>> 16) * 0xc2b2ae35) & 0xffff) << 16)) &
+    0xffffffff;
+  h1 ^= h1 >>> 16;
+
+  return h1 >>> 0;
+}
+
+const intForUUID = murmurhash3_32_gc(cInfo.uuid);
+
+export function isInRollout(rollout: number) {
+  return intForUUID % 100 < rollout;
+}

src/provider.tsx

@@ -22,6 +22,8 @@ import {
 import { CheckResult, ProgressData, PushyTestPayload } from './type';
 import { PushyContext } from './context';
 import { URL } from 'react-native-url-polyfill';
+import { isInRollout } from './isInRollout';
+import { log } from './utils';
 
 export const PushyProvider = ({
   client,
@@ -165,6 +167,14 @@ export const PushyProvider = ({
       if (!info) {
         return;
       }
+      const rollout = info.config?.rollout;
+      if (rollout) {
+        if (!isInRollout(rollout)) {
+          log(`not in ${rollout}% rollout, ignored`);
+          return;
+        }
+        log(`in ${rollout}% rollout, continue`);
+      }
       info.description = info.description ?? '';
       updateInfoRef.current = info;
       setUpdateInfo(info);

src/type.ts

@@ -7,6 +7,10 @@ export interface CheckResult {
   hash?: string;
   description?: string;
   metaInfo?: string;
+  config?: {
+    rollout?: number;
+    [key: string]: any;
+  };
   pdiff?: string;
   diff?: string;
   full?: string;