platform_build_soong/python/builder.go
Dan Willemsen 83f97aed95 Fix mac build w/echo -n
Soong doesn't wrap everything in bash, but relies on the ninja default
of /bin/sh. We should probably improve that in the future, but for now,
just fix the build.

On Mac, /bin/sh and /bin/bash are both bash, but /bin/sh implies `set -o
posix`, and ignores the `-n` flag.

Test: treehugger
Test: build on a mac
Change-Id: Icf41b1c5a1ce9eb0a56e39e68c433fc80b53620f
2018-12-04 13:06:02 -08:00

129 lines
4.1 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 > $stub && ` +
`echo "#!/usr/bin/env python" >${out}.prefix &&` +
`$mergeParCmd -p --prefix ${out}.prefix -pm $stub $out $srcsZips && ` +
`chmod +x $out && (rm -f $stub; rm -f ${out}.prefix)`,
CommandDeps: []string{"$mergeParCmd"},
},
"interp", "main", "template", "stub", "srcsZips")
embeddedPar = pctx.AndroidStaticRule("embeddedPar",
blueprint.RuleParams{
// `echo -n` to trim the newline, since the python code just wants the name.
// /bin/sh (used by ninja) on Mac turns off posix mode, and stops supporting -n.
// Explicitly use bash instead.
Command: `/bin/bash -c "echo -n '$main' > $entryPoint" &&` +
`$mergeParCmd -p --prefix $launcher -e $entryPoint $out $srcsZips && ` +
`chmod +x $out && (rm -f $entryPoint)`,
CommandDeps: []string{"$mergeParCmd"},
},
"main", "entryPoint", "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.OptionalPath, interpreter, main, binName string,
srcsZips android.Paths) android.Path {
// .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),
"main": strings.Replace(main, "/", `\/`, -1),
"template": template.String(),
"stub": stub,
"srcsZips": strings.Join(srcsZips.Strings(), " "),
},
})
} else if launcherPath.Valid() {
// added launcherPath to the implicits Ninja dependencies.
implicits = append(implicits, launcherPath.Path())
// .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": strings.Replace(strings.TrimSuffix(main, pyExt), "/", ".", -1),
"entryPoint": entryPoint,
"srcsZips": strings.Join(srcsZips.Strings(), " "),
"launcher": launcherPath.String(),
},
})
}
return binFile
}