117 lines
3.9 KiB
Go
117 lines
3.9 KiB
Go
// Copyright 2020 Google Inc. 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.
|
|
|
|
package bazel
|
|
|
|
import (
|
|
"encoding/json"
|
|
"strings"
|
|
|
|
"github.com/google/blueprint/proptools"
|
|
)
|
|
|
|
// artifact contains relevant portions of Bazel's aquery proto, Artifact.
|
|
// Represents a single artifact, whether it's a source file or a derived output file.
|
|
type artifact struct {
|
|
Id string
|
|
ExecPath string
|
|
}
|
|
|
|
// KeyValuePair represents Bazel's aquery proto, KeyValuePair.
|
|
type KeyValuePair struct {
|
|
Key string
|
|
Value string
|
|
}
|
|
|
|
// depSetOfFiles contains relevant portions of Bazel's aquery proto, DepSetOfFiles.
|
|
// Represents a data structure containing one or more files. Depsets in Bazel are an efficient
|
|
// data structure for storing large numbers of file paths.
|
|
type depSetOfFiles struct {
|
|
Id string
|
|
// TODO(cparsons): Handle non-flat depsets.
|
|
DirectArtifactIds []string
|
|
}
|
|
|
|
// action contains relevant portions of Bazel's aquery proto, Action.
|
|
// Represents a single command line invocation in the Bazel build graph.
|
|
type action struct {
|
|
Arguments []string
|
|
EnvironmentVariables []KeyValuePair
|
|
InputDepSetIds []string
|
|
Mnemonic string
|
|
OutputIds []string
|
|
}
|
|
|
|
// actionGraphContainer contains relevant portions of Bazel's aquery proto, ActionGraphContainer.
|
|
// An aquery response from Bazel contains a single ActionGraphContainer proto.
|
|
type actionGraphContainer struct {
|
|
Artifacts []artifact
|
|
Actions []action
|
|
DepSetOfFiles []depSetOfFiles
|
|
}
|
|
|
|
// BuildStatement contains information to register a build statement corresponding (one to one)
|
|
// with a Bazel action from Bazel's action graph.
|
|
type BuildStatement struct {
|
|
Command string
|
|
OutputPaths []string
|
|
InputPaths []string
|
|
Env []KeyValuePair
|
|
Mnemonic string
|
|
}
|
|
|
|
// AqueryBuildStatements returns an array of BuildStatements which should be registered (and output
|
|
// to a ninja file) to correspond one-to-one with the given action graph json proto (from a bazel
|
|
// aquery invocation).
|
|
func AqueryBuildStatements(aqueryJsonProto []byte) []BuildStatement {
|
|
buildStatements := []BuildStatement{}
|
|
|
|
var aqueryResult actionGraphContainer
|
|
json.Unmarshal(aqueryJsonProto, &aqueryResult)
|
|
|
|
artifactIdToPath := map[string]string{}
|
|
for _, artifact := range aqueryResult.Artifacts {
|
|
artifactIdToPath[artifact.Id] = artifact.ExecPath
|
|
}
|
|
depsetIdToArtifactIds := map[string][]string{}
|
|
for _, depset := range aqueryResult.DepSetOfFiles {
|
|
depsetIdToArtifactIds[depset.Id] = depset.DirectArtifactIds
|
|
}
|
|
|
|
for _, actionEntry := range aqueryResult.Actions {
|
|
outputPaths := []string{}
|
|
for _, outputId := range actionEntry.OutputIds {
|
|
// TODO(cparsons): Validate the id is present.
|
|
outputPaths = append(outputPaths, artifactIdToPath[outputId])
|
|
}
|
|
inputPaths := []string{}
|
|
for _, inputDepSetId := range actionEntry.InputDepSetIds {
|
|
// TODO(cparsons): Validate the id is present.
|
|
for _, inputId := range depsetIdToArtifactIds[inputDepSetId] {
|
|
// TODO(cparsons): Validate the id is present.
|
|
inputPaths = append(inputPaths, artifactIdToPath[inputId])
|
|
}
|
|
}
|
|
buildStatement := BuildStatement{
|
|
Command: strings.Join(proptools.ShellEscapeList(actionEntry.Arguments), " "),
|
|
OutputPaths: outputPaths,
|
|
InputPaths: inputPaths,
|
|
Env: actionEntry.EnvironmentVariables,
|
|
Mnemonic: actionEntry.Mnemonic}
|
|
buildStatements = append(buildStatements, buildStatement)
|
|
}
|
|
|
|
return buildStatements
|
|
}
|