// Copyright 2014 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package bootstrap
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import (
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"os"
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"path/filepath"
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"runtime"
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"strings"
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"github.com/google/blueprint"
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)
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func bootstrapVariable(name string, value func() string) blueprint.Variable {
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return pctx.VariableFunc(name, func(config interface{}) (string, error) {
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return value(), nil
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})
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}
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var (
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// These variables are the only configuration needed by the boostrap
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// modules.
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srcDir = bootstrapVariable("srcDir", func() string {
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return SrcDir
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})
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buildDir = bootstrapVariable("buildDir", func() string {
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return BuildDir
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})
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ninjaBuildDir = bootstrapVariable("ninjaBuildDir", func() string {
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return NinjaBuildDir
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})
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goRoot = bootstrapVariable("goRoot", func() string {
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goroot := runtime.GOROOT()
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// Prefer to omit absolute paths from the ninja file
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if cwd, err := os.Getwd(); err == nil {
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if relpath, err := filepath.Rel(cwd, goroot); err == nil {
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if !strings.HasPrefix(relpath, "../") {
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goroot = relpath
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}
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}
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}
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return goroot
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})
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compileCmd = bootstrapVariable("compileCmd", func() string {
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return "$goRoot/pkg/tool/" + runtime.GOOS + "_" + runtime.GOARCH + "/compile"
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})
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linkCmd = bootstrapVariable("linkCmd", func() string {
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return "$goRoot/pkg/tool/" + runtime.GOOS + "_" + runtime.GOARCH + "/link"
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})
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)
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type ConfigInterface interface {
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// GeneratingPrimaryBuilder should return true if this build invocation is
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// creating a .bootstrap/build.ninja file to be used to build the
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// primary builder
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GeneratingPrimaryBuilder() bool
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}
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type ConfigRemoveAbandonedFilesUnder interface {
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// RemoveAbandonedFilesUnder should return two slices:
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// - a slice of path prefixes that will be cleaned of files that are no
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// longer active targets, but are listed in the .ninja_log.
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// - a slice of paths that are exempt from cleaning
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RemoveAbandonedFilesUnder() (under, except []string)
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}
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type ConfigBlueprintToolLocation interface {
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// BlueprintToolLocation can return a path name to install blueprint tools
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// designed for end users (bpfmt, bpmodify, and anything else using
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// blueprint_go_binary).
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BlueprintToolLocation() string
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}
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type StopBefore int
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const (
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StopBeforePrepareBuildActions StopBefore = 1
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)
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type ConfigStopBefore interface {
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StopBefore() StopBefore
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}
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type Stage int
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const (
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StagePrimary Stage = iota
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StageMain
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)
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type Config struct {
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stage Stage
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topLevelBlueprintsFile string
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emptyNinjaFile bool
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runGoTests bool
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moduleListFile string
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}
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