drone/gitrpc/internal/service/diff.go

64 lines
1.5 KiB
Go

// Copyright 2022 Harness Inc. All rights reserved.
// Use of this source code is governed by the Polyform Free Trial License
// that can be found in the LICENSE.md file for this repository.
package service
import (
"github.com/harness/gitness/gitrpc/internal/streamio"
"github.com/harness/gitness/gitrpc/internal/types"
"github.com/harness/gitness/gitrpc/rpc"
)
type DiffService struct {
rpc.UnimplementedDiffServiceServer
adapter GitAdapter
reposRoot string
}
func NewDiffService(adapter GitAdapter, reposRoot string) (*DiffService, error) {
return &DiffService{
adapter: adapter,
reposRoot: reposRoot,
}, nil
}
func (s DiffService) RawDiff(request *rpc.RawDiffRequest, stream rpc.DiffService_RawDiffServer) error {
err := validateDiffRequest(request)
if err != nil {
return err
}
ctx := stream.Context()
base := request.GetBase()
sw := streamio.NewWriter(func(p []byte) error {
return stream.Send(&rpc.RawDiffResponse{Data: p})
})
repoPath := getFullPathForRepo(s.reposRoot, base.GetRepoUid())
args := []string{}
if request.GetMergeBase() {
args = []string{
"--merge-base",
}
}
return s.adapter.RawDiff(ctx, repoPath, request.GetBaseRef(), request.GetHeadRef(), sw, args...)
}
func validateDiffRequest(in *rpc.RawDiffRequest) error {
if in.GetBase() == nil {
return types.ErrBaseCannotBeEmpty
}
if in.GetBaseRef() == "" {
return types.ErrEmptyBaseRef
}
if in.GetHeadRef() == "" {
return types.ErrEmptyHeadRef
}
return nil
}