platform_build_soong/python/builder.go

134 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")
zip = pctx.AndroidStaticRule("zip",
blueprint.RuleParams{
Command: `$parCmd -o $out $args`,
CommandDeps: []string{"$parCmd"},
},
"args")
combineZip = pctx.AndroidStaticRule("combineZip",
blueprint.RuleParams{
Command: `$mergeParCmd $out $in`,
CommandDeps: []string{"$mergeParCmd"},
},
)
hostPar = pctx.AndroidStaticRule("hostPar",
blueprint.RuleParams{
Command: `sed -e 's/%interpreter%/$interp/g' -e 's/%main%/$main/g' $template > $stub && ` +
`$mergeParCmd -p -pm $stub $mergedZip $srcsZips && echo '#!/usr/bin/env python' | cat - $mergedZip > $out && ` +
`chmod +x $out && (rm -f $stub; rm -f $mergedZip)`,
CommandDeps: []string{"$mergeParCmd"},
},
"interp", "main", "template", "stub", "mergedZip", "srcsZips")
embeddedPar = pctx.AndroidStaticRule("embeddedPar",
blueprint.RuleParams{
Command: `echo '$main' > $entryPoint &&` +
`$mergeParCmd -p -e $entryPoint $mergedZip $srcsZips && cat $launcher | cat - $mergedZip > $out && ` +
`chmod +x $out && (rm -f $entryPoint; rm -f $mergedZip)`,
CommandDeps: []string{"$mergeParCmd"},
},
"main", "entryPoint", "mergedZip", "srcsZips", "launcher")
)
func init() {
pctx.Import("github.com/google/blueprint/bootstrap")
pctx.Import("android/soong/common")
pctx.HostBinToolVariable("parCmd", "soong_zip")
pctx.HostBinToolVariable("mergeParCmd", "merge_zips")
}
func registerBuildActionForParFile(ctx android.ModuleContext, embeddedLauncher bool,
launcherPath android.Path, interpreter, main, binName string,
srcsZips android.Paths) android.Path {
// .intermediate output path for merged zip file.
mergedZip := android.PathForModuleOut(ctx, binName+".mergedzip")
// .intermediate output path for bin executable.
binFile := android.PathForModuleOut(ctx, binName)
// implicit dependency for parFile build action.
implicits := srcsZips
if !embeddedLauncher {
// the path of stub_template_host.txt from source tree.
template := android.PathForSource(ctx, stubTemplateHost)
implicits = append(implicits, template)
// intermediate output path for __main__.py
stub := android.PathForModuleOut(ctx, mainFileName).String()
ctx.Build(pctx, android.BuildParams{
Rule: hostPar,
Description: "host python archive",
Output: binFile,
Implicits: implicits,
Args: map[string]string{
"interp": strings.Replace(interpreter, "/", `\/`, -1),
// we need remove "runfiles/" suffix since stub script starts
// searching for main file in each sub-dir of "runfiles" directory tree.
"main": strings.Replace(strings.TrimPrefix(main, runFiles+"/"),
"/", `\/`, -1),
"template": template.String(),
"stub": stub,
"mergedZip": mergedZip.String(),
"srcsZips": strings.Join(srcsZips.Strings(), " "),
},
})
} else {
// added launcherPath to the implicits Ninja dependencies.
implicits = append(implicits, launcherPath)
// .intermediate output path for entry_point.txt
entryPoint := android.PathForModuleOut(ctx, entryPointFile).String()
ctx.Build(pctx, android.BuildParams{
Rule: embeddedPar,
Description: "embedded python archive",
Output: binFile,
Implicits: implicits,
Args: map[string]string{
"main": main,
"entryPoint": entryPoint,
"mergedZip": mergedZip.String(),
"srcsZips": strings.Join(srcsZips.Strings(), " "),
"launcher": launcherPath.String(),
},
})
}
return binFile
}