platform_build_soong/python/builder.go

148 lines
4.2 KiB
Go

// Copyright 2017 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 python
// This file contains Ninja build actions for building Python program.
import (
"strings"
"android/soong/android"
"github.com/google/blueprint"
_ "github.com/google/blueprint/bootstrap"
)
var (
pctx = android.NewPackageContext("android/soong/python")
par = pctx.AndroidStaticRule("par",
blueprint.RuleParams{
Command: `touch $initFile && ` +
`sed -e 's/%interpreter%/$interp/g' -e 's/%main%/$main/g' $template > $stub && ` +
`$parCmd -o $parFile $parArgs && echo '#!/usr/bin/env python' | cat - $parFile > $out && ` +
`chmod +x $out && (rm -f $initFile; rm -f $stub; rm -f $parFile)`,
CommandDeps: []string{"$parCmd", "$template"},
},
"initFile", "interp", "main", "template", "stub", "parCmd", "parFile", "parArgs")
)
func init() {
pctx.Import("github.com/google/blueprint/bootstrap")
pctx.Import("android/soong/common")
pctx.HostBinToolVariable("parCmd", "soong_zip")
}
type fileListSpec struct {
fileList android.Path
relativeRoot string
}
type parSpec struct {
rootPrefix string
fileListSpecs []fileListSpec
}
func (p parSpec) soongParArgs() string {
ret := "-P " + p.rootPrefix
for _, spec := range p.fileListSpecs {
ret += " -C " + spec.relativeRoot + " -l " + spec.fileList.String()
}
return ret
}
func registerBuildActionForModuleFileList(ctx android.ModuleContext,
name string, files android.Paths) android.Path {
fileList := android.PathForModuleOut(ctx, name+".list")
content := []string{}
for _, file := range files {
content = append(content, file.String())
}
ctx.ModuleBuild(pctx, android.ModuleBuildParams{
Rule: android.WriteFile,
Description: "generate " + fileList.Rel(),
Output: fileList,
Implicits: files,
Args: map[string]string{
"content": strings.Join(content, `\n`),
},
})
return fileList
}
func registerBuildActionForParFile(ctx android.ModuleContext,
interpreter, main, binName string, newPyPkgs []string, parSpecs []parSpec) android.Path {
// intermediate output path for __init__.py
initFile := android.PathForModuleOut(ctx, initFileName).String()
// the path of stub_template_host.txt from source tree.
template := android.PathForSource(ctx, stubTemplateHost)
// intermediate output path for __main__.py
stub := android.PathForModuleOut(ctx, mainFileName).String()
// intermediate output path for par file.
parFile := android.PathForModuleOut(ctx, binName+parFileExt)
// intermediate output path for bin executable.
binFile := android.PathForModuleOut(ctx, binName)
// implicit dependency for parFile build action.
implicits := android.Paths{}
for _, p := range parSpecs {
for _, f := range p.fileListSpecs {
implicits = append(implicits, f.fileList)
}
}
parArgs := []string{}
parArgs = append(parArgs, "-C "+strings.TrimSuffix(stub, mainFileName)+" -f "+stub)
parArgs = append(parArgs, "-C "+strings.TrimSuffix(initFile, initFileName)+" -f "+initFile)
for _, pkg := range newPyPkgs {
parArgs = append(parArgs, "-P "+pkg+" -f "+initFile)
}
for _, p := range parSpecs {
parArgs = append(parArgs, p.soongParArgs())
}
ctx.ModuleBuild(pctx, android.ModuleBuildParams{
Rule: par,
Description: "python archive",
Output: binFile,
Implicits: implicits,
Args: map[string]string{
"initFile": initFile,
// the "\" isn't being interpreted by regex parser, it's being
// interpreted in the string literal.
"interp": strings.Replace(interpreter, "/", `\/`, -1),
"main": strings.Replace(main, "/", `\/`, -1),
"template": template.String(),
"stub": stub,
"parFile": parFile.String(),
"parArgs": strings.Join(parArgs, " "),
},
})
return binFile
}