forked from uber/tchannel-go
/
build_manager.go
78 lines (66 loc) · 2.08 KB
/
build_manager.go
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// Copyright (c) 2015 Uber Technologies, Inc.
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package benchmark
import (
"io/ioutil"
"os"
"os/exec"
"sync"
)
type buildManager struct {
sync.RWMutex
builds map[string]*build
}
type build struct {
once sync.Once
mainFile string
binaryFile string
buildErr error
}
func newBuildManager() *buildManager {
return &buildManager{
builds: make(map[string]*build),
}
}
func (m *buildManager) GoBinary(mainFile string) (string, error) {
m.Lock()
bld, ok := m.builds[mainFile]
if !ok {
bld = &build{mainFile: mainFile}
m.builds[mainFile] = bld
}
m.Unlock()
bld.once.Do(bld.Build)
return bld.binaryFile, bld.buildErr
}
func (b *build) Build() {
tempFile, err := ioutil.TempFile("", "bench")
if err != nil {
panic("Failed to create temp file: " + err.Error())
}
tempFile.Close()
buildCmd := exec.Command("go", "build", "-o", tempFile.Name(), b.mainFile)
buildCmd.Stdout = os.Stdout
buildCmd.Stderr = os.Stderr
if err := buildCmd.Run(); err != nil {
b.buildErr = err
return
}
b.binaryFile = tempFile.Name()
}