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// Copyright 2019 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package main
import (
"errors"
"os"
"os/exec"
"path/filepath"
)
// Note: We keep this code in python as golang has no builtin
// shlex function.
const bisectPythonCommand = `
import bisect_driver
import shlex
import sys
def ExpandArgs(args, target):
for arg in args:
if arg[0] == '@':
with open(arg[1:], 'r', encoding='utf-8') as f:
ExpandArgs(shlex.split(f.read()), target)
else:
target.append(arg)
return target
stage = sys.argv[1]
dir = sys.argv[2]
execargs = ExpandArgs(sys.argv[3:], [])
sys.exit(bisect_driver.bisect_driver(stage, dir, execargs))
`
func getBisectStage(env env) string {
value, _ := env.getenv("BISECT_STAGE")
return value
}
func calcBisectCommand(env env, cfg *config, bisectStage string, compilerCmd *command) (*command, error) {
bisectDir, _ := env.getenv("BISECT_DIR")
if bisectDir == "" {
if cfg.isAndroidWrapper {
homeDir, ok := env.getenv("HOME")
if !ok {
return nil, errors.New("$HOME is not set")
}
bisectDir = filepath.Join(homeDir, "ANDROID_BISECT")
} else {
bisectDir = "/tmp/sysroot_bisect"
}
}
absCompilerPath := getAbsCmdPath(env, compilerCmd)
pythonPath, err := exec.LookPath(os.Args[0])
if err != nil {
return nil, err
}
pythonPath, err = filepath.EvalSymlinks(pythonPath)
if err != nil {
return nil, err
}
pythonPath = filepath.Dir(pythonPath)
return &command{
Path: "/usr/bin/env",
Args: append([]string{
"python3",
"-c",
bisectPythonCommand,
bisectStage,
bisectDir,
absCompilerPath,
}, compilerCmd.Args...),
EnvUpdates: append(compilerCmd.EnvUpdates, "PYTHONPATH="+pythonPath),
}, nil
}
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