upgrade bazel to 2.2.0

bazel/update_mirror.sh

@@ -56,6 +56,10 @@ upload github.com/bazelbuild/bazel/releases/download/1.0.0/bazel-1.0.0-linux-x86
 upload github.com/bazelbuild/bazel/releases/download/1.0.0/bazel-1.0.0-darwin-x86_64
 upload github.com/bazelbuild/bazel/releases/download/1.0.0/bazel-1.0.0-windows-x86_64.exe
 
+upload github.com/bazelbuild/bazel/releases/download/2.2.0/bazel-2.2.0-linux-x86_64
+upload github.com/bazelbuild/bazel/releases/download/2.2.0/bazel-2.2.0-darwin-x86_64
+upload github.com/bazelbuild/bazel/releases/download/2.2.0/bazel-2.2.0-windows-x86_64.exe
+
 # Collect the github archives to mirror from grpc_deps.bzl
 grep -o '"https://github.com/[^"]*"' bazel/grpc_deps.bzl | sed 's/^"https:\/\///' | sed 's/"$//' | while read -r line ; do
     echo "Updating mirror for ${line}"

templates/tools/dockerfile/bazel.include

@@ -2,7 +2,7 @@
 # Bazel installation
 
 # Must be in sync with tools/bazel
-ENV BAZEL_VERSION 1.0.0
+ENV BAZEL_VERSION 2.2.0
 
 # The correct bazel version is already preinstalled, no need to use //tools/bazel wrapper.
 ENV DISABLE_BAZEL_WRAPPER 1

tools/bazel

@@ -40,7 +40,7 @@ then
   fi
 fi
 
-VERSION=1.0.0
+VERSION=2.2.0
 echo "INFO: Running bazel wrapper (see //tools/bazel for details), bazel version $VERSION will be used instead of system-wide bazel installation." >&2
 
 # update tools/update_mirror.sh to populate the mirror with new bazel archives

tools/internal_ci/windows/bazel_rbe.bat

@@ -14,7 +14,7 @@
 
 @rem TODO(jtattermusch): make this generate less output
 @rem TODO(jtattermusch): use tools/bazel script to keep the versions in sync
-choco install bazel -y --version 1.0.0 --limit-output
+choco install bazel -y --version 2.2.0 --limit-output
 
 cd github/grpc
 set PATH=C:\tools\msys64\usr\bin;C:\Python27;%PATH%