109 lines
2.7 KiB
Go
109 lines
2.7 KiB
Go
// Copyright 2019 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package lib contains proctor functions.
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package lib
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import (
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"fmt"
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"os"
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"os/exec"
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"os/signal"
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"path/filepath"
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"regexp"
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"golang.org/x/sys/unix"
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)
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// TestRunner is an interface that must be implemented for each runtime
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// integrated with proctor.
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type TestRunner interface {
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// ListTests returns a string slice of tests available to run.
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ListTests() ([]string, error)
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// TestCmds returns a slice of *exec.Cmd that will run the given tests.
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// There is no correlation between the number of exec.Cmds returned and the
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// number of tests. It could return one command to run all tests or a few
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// commands that collectively run all.
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TestCmds(tests []string) []*exec.Cmd
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}
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// TestRunnerForRuntime returns a new TestRunner for the given runtime.
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func TestRunnerForRuntime(runtime string) (TestRunner, error) {
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switch runtime {
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case "go":
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return goRunner{}, nil
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case "java":
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return javaRunner{}, nil
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case "nodejs":
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return nodejsRunner{}, nil
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case "php":
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return phpRunner{}, nil
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case "python":
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return pythonRunner{}, nil
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}
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return nil, fmt.Errorf("invalid runtime %q", runtime)
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}
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// PauseAndReap is like init. It runs forever and reaps any children.
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func PauseAndReap() {
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// Get notified of any new children.
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ch := make(chan os.Signal, 1)
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signal.Notify(ch, unix.SIGCHLD)
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for {
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if _, ok := <-ch; !ok {
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// Channel closed. This should not happen.
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panic("signal channel closed")
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}
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// Reap the child.
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for {
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if cpid, _ := unix.Wait4(-1, nil, unix.WNOHANG, nil); cpid < 1 {
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break
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}
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}
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}
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}
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// Search is a helper function to find tests in the given directory that match
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// the regex.
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func Search(root string, testFilter *regexp.Regexp) ([]string, error) {
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var testSlice []string
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err := filepath.Walk(root, func(path string, info os.FileInfo, err error) error {
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if err != nil {
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return err
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}
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name := filepath.Base(path)
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if info.IsDir() || !testFilter.MatchString(name) {
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return nil
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}
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relPath, err := filepath.Rel(root, path)
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if err != nil {
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return err
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}
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testSlice = append(testSlice, relPath)
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return nil
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})
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if err != nil {
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return nil, fmt.Errorf("walking %q: %v", root, err)
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}
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return testSlice, nil
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}
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