[skip ci] update workflows

.github/scripts/cronet.sh

@@ -1,14 +1,16 @@
 #!/usr/bin/env bash
 
-echo "fetch release info from https://chromiumdash.appspot.com ..."
-
-branch="Stable"
+branch=$1
+[ -z $1 ] && branch=Stable
+[ -z $GITHUB_ENV ] && echo "Error: Unexpected github workflow environment" && exit
 
+# 获取最新cronet版本
+echo "fetch $branch release info from https://chromiumdash.appspot.com ..."
 lastest_cronet_version=`curl -s "https://chromiumdash.appspot.com/fetch_releases?channel=$branch&platform=Android&num=1&offset=0" | jq .[0].version -r`
 echo "lastest_cronet_version: $lastest_cronet_version"
 #lastest_cronet_version=100.0.4845.0
 lastest_cronet_main_version=${lastest_cronet_version%%\.*}.0.0.0
-
+# 检查版本是否存在
 function checkVersionExit() {
     local jar_url="https://storage.googleapis.com/chromium-cronet/android/$lastest_cronet_version/Release/cronet/cronet_api.jar"
     statusCode=$(curl -s -I -w %{http_code} "$jar_url" -o /dev/null)
@@ -17,18 +19,25 @@ function checkVersionExit() {
         exit
     fi
 }
-
+# 添加变量到github env
+function writeVariableToGithubEnv() {
+    echo "$1=$2" >> $GITHUB_ENV
+}
+# 获取本地cronet版本
 path=$GITHUB_WORKSPACE/gradle.properties
 current_cronet_version=`cat $path | grep CronetVersion | sed s/CronetVersion=//`
 echo "current_cronet_version: $current_cronet_version"
 
 if [[  $current_cronet_version < $lastest_cronet_version ]];then
     checkVersionExit
+    # 更新gradle.properties
     sed -i s/CronetVersion=.*/CronetVersion=$lastest_cronet_version/ $path
     sed -i s/CronetMainVersion=.*/CronetMainVersion=$lastest_cronet_main_version/ $path
+    # 添加更新日志
     sed "15a* 更新cronet: $lastest_cronet_version" -i $GITHUB_WORKSPACE/app/src/main/assets/updateLog.md
-    echo "start download latest cronet"
-    chmod +x gradlew
-    ./gradlew app:downloadCronet
-fi
-
+    # 生成pull request信息
+    writeVariableToGithubEnv PR_TITLE "Bump cronet from $current_cronet_version to $lastest_cronet_version"
+    writeVariableToGithubEnv PR_BODY "Changes in the [Git log](https://chromium.googlesource.com/chromium/src/+log/$current_cronet_version..$lastest_cronet_version)"
+    # 生成cronet flag
+    writeVariableToGithubEnv cronet ok
+fi