chore(third_party): Add a script to update MLMD. (#6454)

* chore(third_party): Add a script to update MLMD

* address comments

third_party/ml-metadata/README.md

@@ -2,12 +2,35 @@
 
 Upstream repo location: <https://github.com/google/ml-metadata>.
 
+## Upgrade MLMD versions
+
+First change the MLMD version in VERSION file in current folder, for example: $VERSION=1.2.0.
+
+```
+echo -n "\$VERSION" > VERSION
+```
+
+Run the `update_version.sh` script in current folder to update related image references:
+
+```
+./update_version.sh
+```
+
+Run update_dependencies.sh in the following way:
+
+```
+../../hack/update-all-requirements.sh
+```
+
+Make sure the generated files are as expected. Update clients as described below:
+
 ## Build golang gRPC client from proto
 
 * [MLMD proto definitions](https://github.com/google/ml-metadata/tree/master/ml_metadata/proto)
 * [grpc go quickstart](https://grpc.io/docs/languages/go/quickstart/)
 * [client example code](https://github.com/grpc/grpc-go/blob/master/examples/helloworld/greeter_client/main.go)
 
+
 ## Build JS client from proto
 
 Refer to [frontend/README.md](frontend/README.md) for `npm run build:replace` command. 

third_party/ml-metadata/VERSION

@@ -0,0 +1 @@
+1.2.0

third_party/ml-metadata/update_version.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+
+set -e
+
+echo "Usage: update kubeflow/pipelines/third_party/ml-metadata/VERSION to new MLMD version tag by"
+echo '`echo -n "\$VERSION" > VERSION` first, then run this script.'
+echo "Please use the above command to make sure the file doesn't have extra"
+echo "line endings."
+echo "MLMD version page: https://github.com/google/ml-metadata/releases"
+
+DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" > /dev/null && pwd)"
+TAG_NAME="$(cat $DIR/VERSION)"
+REPO_ROOT="$DIR/../.."
+
+cd $REPO_ROOT
+echo $PWD
+echo $TAG_NAME
+
+image_files=( "$REPO_ROOT/.cloudbuild.yaml" \
+              "$REPO_ROOT/.release.cloudbuild.yaml" \
+              "$REPO_ROOT/manifests/kustomize/base/metadata/base/metadata-grpc-deployment.yaml" \
+              "$REPO_ROOT/test/tag_for_hosted.sh" \
+              "$REPO_ROOT/v2/Makefile" \
+              )
+for i in "${image_files[@]}"
+do
+    echo "Replacing $i"
+    sed -i.bak -r "s/gcr.io\/tfx-oss-public\/ml_metadata_store_server\:[0-9.-a-z]+/gcr.io\/tfx-oss-public\/ml_metadata_store_server\:$TAG_NAME/g" "$i"
+done
+
+requirement_files=( "$REPO_ROOT/backend/metadata_writer/requirements.in" ) 
+for i in "${requirement_files[@]}"
+do
+    echo "Replacing $i"
+    sed -i.bak -r "s/ml-metadata==[0-9.-a-z]+/ml-metadata==$TAG_NAME/g" "$i"
+done