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Diffstat (limited to 'src/csharp/Grpc.Tools/ProtoReadDependencies.cs')
-rw-r--r-- | src/csharp/Grpc.Tools/ProtoReadDependencies.cs | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/src/csharp/Grpc.Tools/ProtoReadDependencies.cs b/src/csharp/Grpc.Tools/ProtoReadDependencies.cs new file mode 100644 index 0000000000..963837e8b7 --- /dev/null +++ b/src/csharp/Grpc.Tools/ProtoReadDependencies.cs @@ -0,0 +1,78 @@ +#region Copyright notice and license + +// Copyright 2018 gRPC authors. +// +// 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. + +#endregion + +using System.Collections.Generic; +using Microsoft.Build.Framework; +using Microsoft.Build.Utilities; + +namespace Grpc.Tools +{ + public class ProtoReadDependencies : Task + { + /// <summary> + /// The collection is used to collect possible additional dependencies + /// of proto files cached under ProtoDepDir. + /// </summary> + [Required] + public ITaskItem[] ProtoBuf { get; set; } + + /// <summary> + /// Directory where protoc dependency files are cached. + /// </summary> + [Required] + public string ProtoDepDir { get; set; } + + /// <summary> + /// Additional items that a proto file depends on. This list may include + /// extra dependencies; we do our best to include as few extra positives + /// as reasonable to avoid missing any. The collection item is the + /// dependency, and its Source metadatum is the dependent proto file, like + /// <ItemName Include="/usr/include/proto/wrapper.proto" + /// Source="my_proto.proto" /> + /// </summary> + [Output] + public ITaskItem[] Dependencies { get; private set; } + + public override bool Execute() + { + // Read dependency files, where available. There might be none, + // just use a best effort. + if (ProtoDepDir != null) + { + var dependencies = new List<ITaskItem>(); + foreach (var proto in ProtoBuf) + { + string[] deps = DepFileUtil.ReadDependencyInputs(ProtoDepDir, proto.ItemSpec, Log); + foreach (string dep in deps) + { + var ti = new TaskItem(dep); + ti.SetMetadata(Metadata.Source, proto.ItemSpec); + dependencies.Add(ti); + } + } + Dependencies = dependencies.ToArray(); + } + else + { + Dependencies = new ITaskItem[0]; + } + + return !Log.HasLoggedErrors; + } + }; +} |