// Copyright 2018 The Bazel Authors. All rights reserved.
//
// 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.

syntax = "proto3";

package analysis;

import "src/main/protobuf/build.proto";

option java_package = "com.google.devtools.build.lib.analysis";
option java_outer_classname = "AnalysisProtosV2";

// Container for the action graph properties.
message ActionGraphContainer {
  repeated ActionGraphComponent action_graph_components = 1;
}

// One single component of the final action graph, classified by Discriminator.
message ActionGraphComponent {
  oneof component {
    Artifact artifact = 1;
    Action action = 2;
    Target target = 3;
    DepSetOfFiles dep_set_of_files = 4;
    Configuration configuration = 5;
    AspectDescriptor aspect_descriptor = 6;
    RuleClass rule_class = 7;
    PathFragment path_fragment = 8;
    Target configured_target = 9;
  }
}

// Represents a single artifact, whether it's a source file or a derived output
// file.
message Artifact {
  // Identifier for this artifact; this is a uint32, only valid for this
  // particular dump of the analysis.
  uint32 id = 1;

  // The id of the PathFragment that represents the relative path of the file
  // within the execution root.
  uint32 path_fragment_id = 2;

  // True iff the artifact is a tree artifact, i.e. the above exec_path refers
  // a directory.
  bool is_tree_artifact = 3;
}

// Represents a single action, which is a function from Artifact(s) to
// Artifact(s).
message Action {
  // The target that was responsible for the creation of the action.
  uint32 target_id = 1;

  // The aspects that were responsible for the creation of the action (if any).
  // In the case of aspect-on-aspect, AspectDescriptors are listed in
  // topological order of the dependency graph.
  // e.g. [A, B] would imply that aspect A is applied on top of aspect B.
  repeated uint32 aspect_descriptor_ids = 2;

  // Encodes all significant behavior that might affect the output. The key
  // must change if the work performed by the execution of this action changes.
  // Note that the key doesn't include checksums of the input files.
  string action_key = 3;

  // The mnemonic for this kind of action.
  string mnemonic = 4;

  // The configuration under which this action is executed.
  uint32 configuration_id = 5;

  // The command line arguments of the action. This will be only set if
  // explicitly requested.
  repeated string arguments = 6;

  // The list of environment variables to be set before executing the command.
  repeated KeyValuePair environment_variables = 7;

  // The set of input dep sets that the action depends upon. If the action does
  // input discovery, the contents of this set might change during execution.
  repeated uint32 input_dep_set_ids = 8;

  // The list of Artifact IDs that represent the output files that this action
  // will generate.
  repeated uint32 output_ids = 9;

  // True iff the action does input discovery during execution.
  bool discovers_inputs = 10;

  // Execution info for the action.  Remote execution services may use this
  // information to modify the execution environment, but actions will
  // generally not be aware of it.
  repeated KeyValuePair execution_info = 11;

  // The list of param files. This will be only set if explicitly requested.
  repeated ParamFile param_files = 12;
}

// Represents a single target (without configuration information) that is
// associated with an action.
message Target {
  // Identifier for this target; this is a uint32, only valid for this
  // particular dump of the analysis.
  uint32 id = 1;

  // Label of the target, e.g. //foo:bar.
  string label = 2;

  // Class of the rule.
  uint32 rule_class_id = 3;
}

message RuleClass {
  // Identifier for this rule class; this is a uint32, only valid for
  // this particular dump of the analysis.
  uint32 id = 1;

  // Name of the rule class, e.g. cc_library.
  string name = 2;
}

// Represents an invocation specific descriptor of an aspect.
message AspectDescriptor {
  // Identifier for this aspect descriptor; this is a uint32, only valid
  // for the particular dump of the analysis.
  uint32 id = 1;

  // The name of the corresponding aspect. For native aspects, it's the Java
  // class name, for Skylark aspects it's the bzl file followed by a % sign
  // followed by the name of the aspect.
  string name = 2;

  // The list of parameters bound to a particular invocation of that aspect on
  // a target. Note that aspects can be executed multiple times on the same
  // target in different order.
  repeated KeyValuePair parameters = 3;
}

message DepSetOfFiles {
  // Identifier for this named set of files; this is a uint32, only
  // valid for the particular dump of the analysis.
  uint32 id = 1;

  // Other transitively included named set of files.
  repeated uint32 transitive_dep_set_ids = 2;

  // The list of input artifact IDs that are immediately contained in this set.
  repeated uint32 direct_artifact_ids = 3;
}

message Configuration {
  // Identifier for this configuration; this is a uint32, only valid for
  // the particular dump of the analysis.
  uint32 id = 1;

  // The mnemonic representing the build configuration.
  string mnemonic = 2;

  // The platform string.
  string platform_name = 3;

  // The checksum representation of the configuration options;
  string checksum = 4;
}

message KeyValuePair {
  // The variable name.
  string key = 1;

  // The variable value.
  string value = 2;
}

message ConfiguredTarget {
  // The target. We use blaze_query.Target defined in build.proto instead of
  // the Target defined in this file because blaze_query.Target is much heavier
  // and will output proto results similar to what users are familiar with from
  // regular blaze query.
  blaze_query.Target target = 1;

  // The configuration
  Configuration configuration = 2;
}

// Container for cquery results
message CqueryResult {
  // All the configuredtargets returns by cquery
  repeated ConfiguredTarget results = 1;
}

// Content of a param file.
message ParamFile {
  // The exec path of the param file artifact.
  string exec_path = 1;

  // The arguments in the param file.
  // Each argument corresponds to a line in the param file.
  repeated string arguments = 2;
}

// The path fragment that makes up a full path.
message PathFragment {
  // Identifier for this path fragment.
  uint32 id = 1;

  // The label of the section in the path.
  string label = 2;

  // The id of the parent path fragment.
  uint32 parent_id = 3;
}