drone/gitrpc/client.go

93 lines
2.8 KiB
Go

// Copyright 2023 Harness, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package gitrpc
import (
"fmt"
"time"
"github.com/harness/gitness/gitrpc/rpc"
"google.golang.org/grpc"
"google.golang.org/grpc/backoff"
"google.golang.org/grpc/credentials/insecure"
)
type Client struct {
conn *grpc.ClientConn
repoService rpc.RepositoryServiceClient
refService rpc.ReferenceServiceClient
httpService rpc.SmartHTTPServiceClient
commitFilesService rpc.CommitFilesServiceClient
diffService rpc.DiffServiceClient
mergeService rpc.MergeServiceClient
blameService rpc.BlameServiceClient
pushService rpc.PushServiceClient
}
func New(config Config) (*Client, error) {
if err := config.Validate(); err != nil {
return nil, fmt.Errorf("provided config is invalid: %w", err)
}
// create interceptors
logIntc := NewClientLogInterceptor()
// preparate all grpc options
grpcOpts := []grpc.DialOption{
grpc.WithDefaultServiceConfig(fmt.Sprintf(`{"loadBalancingPolicy":"%s"}`, config.LoadBalancingPolicy)),
grpc.WithTransportCredentials(insecure.NewCredentials()),
grpc.WithChainUnaryInterceptor(
logIntc.UnaryClientInterceptor(),
),
grpc.WithChainStreamInterceptor(
logIntc.StreamClientInterceptor(),
),
grpc.WithConnectParams(
grpc.ConnectParams{
// This config optimizes for connection recovery instead of load reduction.
// NOTE: we only expect limited number of internal clients, thus low number of connections.
Backoff: backoff.Config{
BaseDelay: 100 * time.Millisecond,
Multiplier: 1.6, // same as default
Jitter: 0.2, // same as default
MaxDelay: time.Second,
},
},
),
}
conn, err := grpc.Dial(config.Addr, grpcOpts...)
if err != nil {
return nil, err
}
return NewWithConn(conn), nil
}
func NewWithConn(conn *grpc.ClientConn) *Client {
return &Client{
conn: conn,
repoService: rpc.NewRepositoryServiceClient(conn),
refService: rpc.NewReferenceServiceClient(conn),
httpService: rpc.NewSmartHTTPServiceClient(conn),
commitFilesService: rpc.NewCommitFilesServiceClient(conn),
diffService: rpc.NewDiffServiceClient(conn),
mergeService: rpc.NewMergeServiceClient(conn),
blameService: rpc.NewBlameServiceClient(conn),
pushService: rpc.NewPushServiceClient(conn),
}
}