mirror of
https://github.com/golang/go
synced 2024-11-18 16:24:42 -07:00
7647741246
The flag updates error annotations in test files from actual compiler output. This is useful when doing compiler changes that add/remove/change lots of errors, or when adding lots of new tests. Also I noticed at least 2 cases where annotation were sub-optimal: 1. The annotation was "leaking param p" when the actual error is "leaking param p to result ~r1". 2. The annotation was "leaking param m" when the actual errors are "leaking param m" and "leaking param mv1". For now it works only for errorcheck mode. Also, apply the update to escape and liveness tests. Some files have gccgo-specific errors of the form "gc error|gccgo error", so it is risky to run update on all files. Gccgo-specific error does not necessary contain '|', it can be just truncated. Change-Id: Iaaae767f859dcb8321a8cb4970b2b70969e8a345 Reviewed-on: https://go-review.googlesource.com/5310 Run-TryBot: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
1046 lines
24 KiB
Go
1046 lines
24 KiB
Go
// skip
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// Copyright 2012 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Run runs tests in the test directory.
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//
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// TODO(bradfitz): docs of some sort, once we figure out how we're changing
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// headers of files
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package main
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import (
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"bytes"
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"errors"
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"flag"
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"fmt"
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"go/build"
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"io/ioutil"
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"log"
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"os"
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"os/exec"
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"path"
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"path/filepath"
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"regexp"
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"runtime"
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"sort"
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"strconv"
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"strings"
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"time"
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"unicode"
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)
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var (
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verbose = flag.Bool("v", false, "verbose. if set, parallelism is set to 1.")
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numParallel = flag.Int("n", runtime.NumCPU(), "number of parallel tests to run")
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summary = flag.Bool("summary", false, "show summary of results")
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showSkips = flag.Bool("show_skips", false, "show skipped tests")
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updateErrors = flag.Bool("update_errors", false, "update error messages in test file based on compiler output")
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runoutputLimit = flag.Int("l", defaultRunOutputLimit(), "number of parallel runoutput tests to run")
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)
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var (
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// gc and ld are [568][gl].
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gc, ld string
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// letter is the build.ArchChar
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letter string
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goos, goarch string
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// dirs are the directories to look for *.go files in.
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// TODO(bradfitz): just use all directories?
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// TODO(rsc): Put syntax back. See issue 9968.
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dirs = []string{".", "ken", "chan", "interface", "dwarf", "fixedbugs", "bugs"}
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// ratec controls the max number of tests running at a time.
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ratec chan bool
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// toRun is the channel of tests to run.
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// It is nil until the first test is started.
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toRun chan *test
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// rungatec controls the max number of runoutput tests
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// executed in parallel as they can each consume a lot of memory.
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rungatec chan bool
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)
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// maxTests is an upper bound on the total number of tests.
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// It is used as a channel buffer size to make sure sends don't block.
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const maxTests = 5000
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func main() {
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flag.Parse()
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goos = getenv("GOOS", runtime.GOOS)
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goarch = getenv("GOARCH", runtime.GOARCH)
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findExecCmd()
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// Disable parallelism if printing or if using a simulator.
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if *verbose || len(findExecCmd()) > 0 {
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*numParallel = 1
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}
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ratec = make(chan bool, *numParallel)
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rungatec = make(chan bool, *runoutputLimit)
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var err error
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letter, err = build.ArchChar(build.Default.GOARCH)
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check(err)
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gc = letter + "g"
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ld = letter + "l"
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var tests []*test
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if flag.NArg() > 0 {
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for _, arg := range flag.Args() {
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if arg == "-" || arg == "--" {
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// Permit running:
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// $ go run run.go - env.go
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// $ go run run.go -- env.go
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// $ go run run.go - ./fixedbugs
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// $ go run run.go -- ./fixedbugs
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continue
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}
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if fi, err := os.Stat(arg); err == nil && fi.IsDir() {
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for _, baseGoFile := range goFiles(arg) {
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tests = append(tests, startTest(arg, baseGoFile))
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}
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} else if strings.HasSuffix(arg, ".go") {
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dir, file := filepath.Split(arg)
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tests = append(tests, startTest(dir, file))
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} else {
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log.Fatalf("can't yet deal with non-directory and non-go file %q", arg)
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}
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}
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} else {
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for _, dir := range dirs {
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for _, baseGoFile := range goFiles(dir) {
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tests = append(tests, startTest(dir, baseGoFile))
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}
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}
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}
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failed := false
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resCount := map[string]int{}
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for _, test := range tests {
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<-test.donec
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status := "ok "
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errStr := ""
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if _, isSkip := test.err.(skipError); isSkip {
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test.err = nil
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errStr = "unexpected skip for " + path.Join(test.dir, test.gofile) + ": " + errStr
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status = "FAIL"
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}
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if test.err != nil {
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status = "FAIL"
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errStr = test.err.Error()
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}
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if status == "FAIL" {
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failed = true
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}
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resCount[status]++
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if status == "skip" && !*verbose && !*showSkips {
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continue
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}
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dt := fmt.Sprintf("%.3fs", test.dt.Seconds())
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if status == "FAIL" {
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fmt.Printf("# go run run.go -- %s\n%s\nFAIL\t%s\t%s\n",
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path.Join(test.dir, test.gofile),
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errStr, test.goFileName(), dt)
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continue
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}
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if !*verbose {
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continue
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}
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fmt.Printf("%s\t%s\t%s\n", status, test.goFileName(), dt)
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}
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if *summary {
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for k, v := range resCount {
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fmt.Printf("%5d %s\n", v, k)
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}
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}
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if failed {
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os.Exit(1)
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}
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}
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func toolPath(name string) string {
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p := filepath.Join(os.Getenv("GOROOT"), "bin", "tool", name)
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if _, err := os.Stat(p); err != nil {
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log.Fatalf("didn't find binary at %s", p)
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}
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return p
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}
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func goFiles(dir string) []string {
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f, err := os.Open(dir)
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check(err)
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dirnames, err := f.Readdirnames(-1)
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check(err)
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names := []string{}
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for _, name := range dirnames {
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if !strings.HasPrefix(name, ".") && strings.HasSuffix(name, ".go") {
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names = append(names, name)
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}
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}
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sort.Strings(names)
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return names
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}
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type runCmd func(...string) ([]byte, error)
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func compileFile(runcmd runCmd, longname string) (out []byte, err error) {
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return runcmd("go", "tool", gc, "-e", longname)
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}
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func compileInDir(runcmd runCmd, dir string, names ...string) (out []byte, err error) {
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cmd := []string{"go", "tool", gc, "-e", "-D", ".", "-I", "."}
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for _, name := range names {
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cmd = append(cmd, filepath.Join(dir, name))
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}
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return runcmd(cmd...)
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}
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func linkFile(runcmd runCmd, goname string) (err error) {
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pfile := strings.Replace(goname, ".go", "."+letter, -1)
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_, err = runcmd("go", "tool", ld, "-w", "-o", "a.exe", "-L", ".", pfile)
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return
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}
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// skipError describes why a test was skipped.
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type skipError string
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func (s skipError) Error() string { return string(s) }
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func check(err error) {
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if err != nil {
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log.Fatal(err)
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}
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}
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// test holds the state of a test.
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type test struct {
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dir, gofile string
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donec chan bool // closed when done
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dt time.Duration
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src string
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action string // "compile", "build", etc.
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tempDir string
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err error
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}
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// startTest
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func startTest(dir, gofile string) *test {
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t := &test{
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dir: dir,
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gofile: gofile,
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donec: make(chan bool, 1),
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}
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if toRun == nil {
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toRun = make(chan *test, maxTests)
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go runTests()
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}
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select {
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case toRun <- t:
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default:
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panic("toRun buffer size (maxTests) is too small")
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}
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return t
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}
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// runTests runs tests in parallel, but respecting the order they
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// were enqueued on the toRun channel.
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func runTests() {
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for {
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ratec <- true
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t := <-toRun
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go func() {
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t.run()
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<-ratec
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}()
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}
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}
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var cwd, _ = os.Getwd()
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func (t *test) goFileName() string {
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return filepath.Join(t.dir, t.gofile)
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}
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func (t *test) goDirName() string {
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return filepath.Join(t.dir, strings.Replace(t.gofile, ".go", ".dir", -1))
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}
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func goDirFiles(longdir string) (filter []os.FileInfo, err error) {
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files, dirErr := ioutil.ReadDir(longdir)
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if dirErr != nil {
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return nil, dirErr
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}
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for _, gofile := range files {
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if filepath.Ext(gofile.Name()) == ".go" {
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filter = append(filter, gofile)
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}
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}
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return
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}
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var packageRE = regexp.MustCompile(`(?m)^package (\w+)`)
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func goDirPackages(longdir string) ([][]string, error) {
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files, err := goDirFiles(longdir)
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if err != nil {
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return nil, err
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}
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var pkgs [][]string
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m := make(map[string]int)
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for _, file := range files {
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name := file.Name()
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data, err := ioutil.ReadFile(filepath.Join(longdir, name))
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if err != nil {
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return nil, err
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}
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pkgname := packageRE.FindStringSubmatch(string(data))
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if pkgname == nil {
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return nil, fmt.Errorf("cannot find package name in %s", name)
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}
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i, ok := m[pkgname[1]]
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if !ok {
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i = len(pkgs)
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pkgs = append(pkgs, nil)
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m[pkgname[1]] = i
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}
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pkgs[i] = append(pkgs[i], name)
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}
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return pkgs, nil
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}
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type context struct {
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GOOS string
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GOARCH string
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}
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// shouldTest looks for build tags in a source file and returns
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// whether the file should be used according to the tags.
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func shouldTest(src string, goos, goarch string) (ok bool, whyNot string) {
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for _, line := range strings.Split(src, "\n") {
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line = strings.TrimSpace(line)
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if strings.HasPrefix(line, "//") {
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line = line[2:]
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} else {
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continue
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}
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line = strings.TrimSpace(line)
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if len(line) == 0 || line[0] != '+' {
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continue
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}
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ctxt := &context{
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GOOS: goos,
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GOARCH: goarch,
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}
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words := strings.Fields(line)
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if words[0] == "+build" {
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ok := false
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for _, word := range words[1:] {
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if ctxt.match(word) {
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ok = true
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break
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}
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}
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if !ok {
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// no matching tag found.
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return false, line
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}
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}
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}
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// no build tags
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return true, ""
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}
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func (ctxt *context) match(name string) bool {
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if name == "" {
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return false
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}
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if i := strings.Index(name, ","); i >= 0 {
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// comma-separated list
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return ctxt.match(name[:i]) && ctxt.match(name[i+1:])
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}
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if strings.HasPrefix(name, "!!") { // bad syntax, reject always
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return false
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}
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if strings.HasPrefix(name, "!") { // negation
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return len(name) > 1 && !ctxt.match(name[1:])
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}
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// Tags must be letters, digits, underscores or dots.
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// Unlike in Go identifiers, all digits are fine (e.g., "386").
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for _, c := range name {
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if !unicode.IsLetter(c) && !unicode.IsDigit(c) && c != '_' && c != '.' {
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return false
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}
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}
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if name == ctxt.GOOS || name == ctxt.GOARCH {
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return true
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}
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return false
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}
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func init() { checkShouldTest() }
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// run runs a test.
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func (t *test) run() {
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start := time.Now()
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defer func() {
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t.dt = time.Since(start)
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close(t.donec)
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}()
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srcBytes, err := ioutil.ReadFile(t.goFileName())
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if err != nil {
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t.err = err
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return
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}
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t.src = string(srcBytes)
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if t.src[0] == '\n' {
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t.err = skipError("starts with newline")
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return
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}
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pos := strings.Index(t.src, "\n\n")
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if pos == -1 {
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t.err = errors.New("double newline not found")
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return
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}
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// Check for build constraints only upto the first blank line.
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if ok, why := shouldTest(t.src[:pos], goos, goarch); !ok {
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t.action = "skip"
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if *showSkips {
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fmt.Printf("%-20s %-20s: %s\n", t.action, t.goFileName(), why)
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}
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return
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}
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action := t.src[:pos]
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if nl := strings.Index(action, "\n"); nl >= 0 && strings.Contains(action[:nl], "+build") {
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// skip first line
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action = action[nl+1:]
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}
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if strings.HasPrefix(action, "//") {
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action = action[2:]
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}
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var args, flags []string
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wantError := false
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f := strings.Fields(action)
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if len(f) > 0 {
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action = f[0]
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args = f[1:]
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}
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switch action {
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case "rundircmpout":
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action = "rundir"
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t.action = "rundir"
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case "cmpout":
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action = "run" // the run case already looks for <dir>/<test>.out files
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fallthrough
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case "compile", "compiledir", "build", "run", "runoutput", "rundir":
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t.action = action
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case "errorcheck", "errorcheckdir", "errorcheckoutput":
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t.action = action
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wantError = true
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for len(args) > 0 && strings.HasPrefix(args[0], "-") {
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if args[0] == "-0" {
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wantError = false
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} else {
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flags = append(flags, args[0])
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}
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args = args[1:]
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}
|
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case "skip":
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t.action = "skip"
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return
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default:
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t.err = skipError("skipped; unknown pattern: " + action)
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t.action = "??"
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return
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}
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|
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t.makeTempDir()
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defer os.RemoveAll(t.tempDir)
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|
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err = ioutil.WriteFile(filepath.Join(t.tempDir, t.gofile), srcBytes, 0644)
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check(err)
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// A few tests (of things like the environment) require these to be set.
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if os.Getenv("GOOS") == "" {
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os.Setenv("GOOS", runtime.GOOS)
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}
|
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if os.Getenv("GOARCH") == "" {
|
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os.Setenv("GOARCH", runtime.GOARCH)
|
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}
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|
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useTmp := true
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runcmd := func(args ...string) ([]byte, error) {
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cmd := exec.Command(args[0], args[1:]...)
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var buf bytes.Buffer
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cmd.Stdout = &buf
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cmd.Stderr = &buf
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if useTmp {
|
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cmd.Dir = t.tempDir
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cmd.Env = envForDir(cmd.Dir)
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}
|
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err := cmd.Run()
|
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if err != nil {
|
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err = fmt.Errorf("%s\n%s", err, buf.Bytes())
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}
|
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return buf.Bytes(), err
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}
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|
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long := filepath.Join(cwd, t.goFileName())
|
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switch action {
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default:
|
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t.err = fmt.Errorf("unimplemented action %q", action)
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|
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case "errorcheck":
|
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cmdline := []string{"go", "tool", gc, "-e", "-o", "a." + letter}
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cmdline = append(cmdline, flags...)
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cmdline = append(cmdline, long)
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out, err := runcmd(cmdline...)
|
|
if wantError {
|
|
if err == nil {
|
|
t.err = fmt.Errorf("compilation succeeded unexpectedly\n%s", out)
|
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return
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}
|
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} else {
|
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if err != nil {
|
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t.err = err
|
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return
|
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}
|
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}
|
|
if *updateErrors {
|
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t.updateErrors(string(out), long)
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}
|
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t.err = t.errorCheck(string(out), long, t.gofile)
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return
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|
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case "compile":
|
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_, t.err = compileFile(runcmd, long)
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|
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case "compiledir":
|
|
// Compile all files in the directory in lexicographic order.
|
|
longdir := filepath.Join(cwd, t.goDirName())
|
|
pkgs, err := goDirPackages(longdir)
|
|
if err != nil {
|
|
t.err = err
|
|
return
|
|
}
|
|
for _, gofiles := range pkgs {
|
|
_, t.err = compileInDir(runcmd, longdir, gofiles...)
|
|
if t.err != nil {
|
|
return
|
|
}
|
|
}
|
|
|
|
case "errorcheckdir":
|
|
// errorcheck all files in lexicographic order
|
|
// useful for finding importing errors
|
|
longdir := filepath.Join(cwd, t.goDirName())
|
|
pkgs, err := goDirPackages(longdir)
|
|
if err != nil {
|
|
t.err = err
|
|
return
|
|
}
|
|
for i, gofiles := range pkgs {
|
|
out, err := compileInDir(runcmd, longdir, gofiles...)
|
|
if i == len(pkgs)-1 {
|
|
if wantError && err == nil {
|
|
t.err = fmt.Errorf("compilation succeeded unexpectedly\n%s", out)
|
|
return
|
|
} else if !wantError && err != nil {
|
|
t.err = err
|
|
return
|
|
}
|
|
} else if err != nil {
|
|
t.err = err
|
|
return
|
|
}
|
|
var fullshort []string
|
|
for _, name := range gofiles {
|
|
fullshort = append(fullshort, filepath.Join(longdir, name), name)
|
|
}
|
|
t.err = t.errorCheck(string(out), fullshort...)
|
|
if t.err != nil {
|
|
break
|
|
}
|
|
}
|
|
|
|
case "rundir":
|
|
// Compile all files in the directory in lexicographic order.
|
|
// then link as if the last file is the main package and run it
|
|
longdir := filepath.Join(cwd, t.goDirName())
|
|
pkgs, err := goDirPackages(longdir)
|
|
if err != nil {
|
|
t.err = err
|
|
return
|
|
}
|
|
for i, gofiles := range pkgs {
|
|
_, err := compileInDir(runcmd, longdir, gofiles...)
|
|
if err != nil {
|
|
t.err = err
|
|
return
|
|
}
|
|
if i == len(pkgs)-1 {
|
|
err = linkFile(runcmd, gofiles[0])
|
|
if err != nil {
|
|
t.err = err
|
|
return
|
|
}
|
|
var cmd []string
|
|
cmd = append(cmd, findExecCmd()...)
|
|
cmd = append(cmd, filepath.Join(t.tempDir, "a.exe"))
|
|
cmd = append(cmd, args...)
|
|
out, err := runcmd(cmd...)
|
|
if err != nil {
|
|
t.err = err
|
|
return
|
|
}
|
|
if strings.Replace(string(out), "\r\n", "\n", -1) != t.expectedOutput() {
|
|
t.err = fmt.Errorf("incorrect output\n%s", out)
|
|
}
|
|
}
|
|
}
|
|
|
|
case "build":
|
|
_, err := runcmd("go", "build", "-o", "a.exe", long)
|
|
if err != nil {
|
|
t.err = err
|
|
}
|
|
|
|
case "run":
|
|
useTmp = false
|
|
out, err := runcmd(append([]string{"go", "run", t.goFileName()}, args...)...)
|
|
if err != nil {
|
|
t.err = err
|
|
return
|
|
}
|
|
if strings.Replace(string(out), "\r\n", "\n", -1) != t.expectedOutput() {
|
|
t.err = fmt.Errorf("incorrect output\n%s", out)
|
|
}
|
|
|
|
case "runoutput":
|
|
rungatec <- true
|
|
defer func() {
|
|
<-rungatec
|
|
}()
|
|
useTmp = false
|
|
out, err := runcmd(append([]string{"go", "run", t.goFileName()}, args...)...)
|
|
if err != nil {
|
|
t.err = err
|
|
return
|
|
}
|
|
tfile := filepath.Join(t.tempDir, "tmp__.go")
|
|
if err := ioutil.WriteFile(tfile, out, 0666); err != nil {
|
|
t.err = fmt.Errorf("write tempfile:%s", err)
|
|
return
|
|
}
|
|
out, err = runcmd("go", "run", tfile)
|
|
if err != nil {
|
|
t.err = err
|
|
return
|
|
}
|
|
if string(out) != t.expectedOutput() {
|
|
t.err = fmt.Errorf("incorrect output\n%s", out)
|
|
}
|
|
|
|
case "errorcheckoutput":
|
|
useTmp = false
|
|
out, err := runcmd(append([]string{"go", "run", t.goFileName()}, args...)...)
|
|
if err != nil {
|
|
t.err = err
|
|
return
|
|
}
|
|
tfile := filepath.Join(t.tempDir, "tmp__.go")
|
|
err = ioutil.WriteFile(tfile, out, 0666)
|
|
if err != nil {
|
|
t.err = fmt.Errorf("write tempfile:%s", err)
|
|
return
|
|
}
|
|
cmdline := []string{"go", "tool", gc, "-e", "-o", "a." + letter}
|
|
cmdline = append(cmdline, flags...)
|
|
cmdline = append(cmdline, tfile)
|
|
out, err = runcmd(cmdline...)
|
|
if wantError {
|
|
if err == nil {
|
|
t.err = fmt.Errorf("compilation succeeded unexpectedly\n%s", out)
|
|
return
|
|
}
|
|
} else {
|
|
if err != nil {
|
|
t.err = err
|
|
return
|
|
}
|
|
}
|
|
t.err = t.errorCheck(string(out), tfile, "tmp__.go")
|
|
return
|
|
}
|
|
}
|
|
|
|
var execCmd []string
|
|
|
|
func findExecCmd() []string {
|
|
if execCmd != nil {
|
|
return execCmd
|
|
}
|
|
execCmd = []string{} // avoid work the second time
|
|
if goos == runtime.GOOS && goarch == runtime.GOARCH {
|
|
return execCmd
|
|
}
|
|
path, err := exec.LookPath(fmt.Sprintf("go_%s_%s_exec", goos, goarch))
|
|
if err == nil {
|
|
execCmd = []string{path}
|
|
}
|
|
return execCmd
|
|
}
|
|
|
|
func (t *test) String() string {
|
|
return filepath.Join(t.dir, t.gofile)
|
|
}
|
|
|
|
func (t *test) makeTempDir() {
|
|
var err error
|
|
t.tempDir, err = ioutil.TempDir("", "")
|
|
check(err)
|
|
}
|
|
|
|
func (t *test) expectedOutput() string {
|
|
filename := filepath.Join(t.dir, t.gofile)
|
|
filename = filename[:len(filename)-len(".go")]
|
|
filename += ".out"
|
|
b, _ := ioutil.ReadFile(filename)
|
|
return string(b)
|
|
}
|
|
|
|
func splitOutput(out string) []string {
|
|
// 6g error messages continue onto additional lines with leading tabs.
|
|
// Split the output at the beginning of each line that doesn't begin with a tab.
|
|
var res []string
|
|
for _, line := range strings.Split(out, "\n") {
|
|
if strings.HasSuffix(line, "\r") { // remove '\r', output by compiler on windows
|
|
line = line[:len(line)-1]
|
|
}
|
|
if strings.HasPrefix(line, "\t") {
|
|
res[len(res)-1] += "\n" + line
|
|
} else if strings.HasPrefix(line, "go tool") {
|
|
continue
|
|
} else if strings.TrimSpace(line) != "" {
|
|
res = append(res, line)
|
|
}
|
|
}
|
|
return res
|
|
}
|
|
|
|
func (t *test) errorCheck(outStr string, fullshort ...string) (err error) {
|
|
defer func() {
|
|
if *verbose && err != nil {
|
|
log.Printf("%s gc output:\n%s", t, outStr)
|
|
}
|
|
}()
|
|
var errs []error
|
|
out := splitOutput(outStr)
|
|
|
|
// Cut directory name.
|
|
for i := range out {
|
|
for j := 0; j < len(fullshort); j += 2 {
|
|
full, short := fullshort[j], fullshort[j+1]
|
|
out[i] = strings.Replace(out[i], full, short, -1)
|
|
}
|
|
}
|
|
|
|
var want []wantedError
|
|
for j := 0; j < len(fullshort); j += 2 {
|
|
full, short := fullshort[j], fullshort[j+1]
|
|
want = append(want, t.wantedErrors(full, short)...)
|
|
}
|
|
|
|
for _, we := range want {
|
|
var errmsgs []string
|
|
errmsgs, out = partitionStrings(we.prefix, out)
|
|
if len(errmsgs) == 0 {
|
|
errs = append(errs, fmt.Errorf("%s:%d: missing error %q", we.file, we.lineNum, we.reStr))
|
|
continue
|
|
}
|
|
matched := false
|
|
n := len(out)
|
|
for _, errmsg := range errmsgs {
|
|
if we.re.MatchString(errmsg) {
|
|
matched = true
|
|
} else {
|
|
out = append(out, errmsg)
|
|
}
|
|
}
|
|
if !matched {
|
|
errs = append(errs, fmt.Errorf("%s:%d: no match for %#q in:\n\t%s", we.file, we.lineNum, we.reStr, strings.Join(out[n:], "\n\t")))
|
|
continue
|
|
}
|
|
}
|
|
|
|
if len(out) > 0 {
|
|
errs = append(errs, fmt.Errorf("Unmatched Errors:"))
|
|
for _, errLine := range out {
|
|
errs = append(errs, fmt.Errorf("%s", errLine))
|
|
}
|
|
}
|
|
|
|
if len(errs) == 0 {
|
|
return nil
|
|
}
|
|
if len(errs) == 1 {
|
|
return errs[0]
|
|
}
|
|
var buf bytes.Buffer
|
|
fmt.Fprintf(&buf, "\n")
|
|
for _, err := range errs {
|
|
fmt.Fprintf(&buf, "%s\n", err.Error())
|
|
}
|
|
return errors.New(buf.String())
|
|
}
|
|
|
|
func (t *test) updateErrors(out string, file string) {
|
|
// Read in source file.
|
|
src, err := ioutil.ReadFile(file)
|
|
if err != nil {
|
|
fmt.Fprintln(os.Stderr, err)
|
|
return
|
|
}
|
|
lines := strings.Split(string(src), "\n")
|
|
// Remove old errors.
|
|
for i, ln := range lines {
|
|
pos := strings.Index(ln, " // ERROR ")
|
|
if pos >= 0 {
|
|
lines[i] = ln[:pos]
|
|
}
|
|
}
|
|
// Parse new errors.
|
|
errors := make(map[int]map[string]bool)
|
|
tmpRe := regexp.MustCompile(`autotmp_[0-9]+`)
|
|
for _, errStr := range splitOutput(out) {
|
|
colon1 := strings.Index(errStr, ":")
|
|
if colon1 < 0 || errStr[:colon1] != file{
|
|
continue
|
|
}
|
|
colon2 := strings.Index(errStr[colon1+1:], ":")
|
|
if colon2 < 0 {
|
|
continue
|
|
}
|
|
colon2 += colon1+1
|
|
line, err := strconv.Atoi(errStr[colon1+1:colon2])
|
|
line--
|
|
if err != nil || line < 0 || line >= len(lines) {
|
|
continue
|
|
}
|
|
msg := errStr[colon2+2:]
|
|
for _, r := range []string{`\`, `*`, `+`, `[`, `]`, `(`, `)`} {
|
|
msg = strings.Replace(msg, r, `\` + r, -1)
|
|
}
|
|
msg = strings.Replace(msg, `"`, `.`, -1)
|
|
msg = tmpRe.ReplaceAllLiteralString(msg, `autotmp_[0-9]+`)
|
|
if errors[line] == nil {
|
|
errors[line] = make(map[string]bool)
|
|
}
|
|
errors[line][msg] = true
|
|
}
|
|
// Add new errors.
|
|
for line, errs := range errors {
|
|
var sorted []string
|
|
for e := range errs {
|
|
sorted = append(sorted, e)
|
|
}
|
|
sort.Strings(sorted)
|
|
lines[line] += " // ERROR"
|
|
for _, e := range sorted {
|
|
lines[line] += fmt.Sprintf(` "%s$"`, e)
|
|
}
|
|
}
|
|
// Write new file.
|
|
err = ioutil.WriteFile(file, []byte(strings.Join(lines, "\n")), 0640)
|
|
if err != nil {
|
|
fmt.Fprintln(os.Stderr, err)
|
|
return
|
|
}
|
|
// Polish.
|
|
exec.Command("go", "fmt", file).CombinedOutput()
|
|
}
|
|
|
|
// matchPrefix reports whether s is of the form ^(.*/)?prefix(:|[),
|
|
// That is, it needs the file name prefix followed by a : or a [,
|
|
// and possibly preceded by a directory name.
|
|
func matchPrefix(s, prefix string) bool {
|
|
i := strings.Index(s, ":")
|
|
if i < 0 {
|
|
return false
|
|
}
|
|
j := strings.LastIndex(s[:i], "/")
|
|
s = s[j+1:]
|
|
if len(s) <= len(prefix) || s[:len(prefix)] != prefix {
|
|
return false
|
|
}
|
|
switch s[len(prefix)] {
|
|
case '[', ':':
|
|
return true
|
|
}
|
|
return false
|
|
}
|
|
|
|
func partitionStrings(prefix string, strs []string) (matched, unmatched []string) {
|
|
for _, s := range strs {
|
|
if matchPrefix(s, prefix) {
|
|
matched = append(matched, s)
|
|
} else {
|
|
unmatched = append(unmatched, s)
|
|
}
|
|
}
|
|
return
|
|
}
|
|
|
|
type wantedError struct {
|
|
reStr string
|
|
re *regexp.Regexp
|
|
lineNum int
|
|
file string
|
|
prefix string
|
|
}
|
|
|
|
var (
|
|
errRx = regexp.MustCompile(`// (?:GC_)?ERROR (.*)`)
|
|
errQuotesRx = regexp.MustCompile(`"([^"]*)"`)
|
|
lineRx = regexp.MustCompile(`LINE(([+-])([0-9]+))?`)
|
|
)
|
|
|
|
func (t *test) wantedErrors(file, short string) (errs []wantedError) {
|
|
cache := make(map[string]*regexp.Regexp)
|
|
|
|
src, _ := ioutil.ReadFile(file)
|
|
for i, line := range strings.Split(string(src), "\n") {
|
|
lineNum := i + 1
|
|
if strings.Contains(line, "////") {
|
|
// double comment disables ERROR
|
|
continue
|
|
}
|
|
m := errRx.FindStringSubmatch(line)
|
|
if m == nil {
|
|
continue
|
|
}
|
|
all := m[1]
|
|
mm := errQuotesRx.FindAllStringSubmatch(all, -1)
|
|
if mm == nil {
|
|
log.Fatalf("%s:%d: invalid errchk line: %s", t.goFileName(), lineNum, line)
|
|
}
|
|
for _, m := range mm {
|
|
rx := lineRx.ReplaceAllStringFunc(m[1], func(m string) string {
|
|
n := lineNum
|
|
if strings.HasPrefix(m, "LINE+") {
|
|
delta, _ := strconv.Atoi(m[5:])
|
|
n += delta
|
|
} else if strings.HasPrefix(m, "LINE-") {
|
|
delta, _ := strconv.Atoi(m[5:])
|
|
n -= delta
|
|
}
|
|
return fmt.Sprintf("%s:%d", short, n)
|
|
})
|
|
re := cache[rx]
|
|
if re == nil {
|
|
var err error
|
|
re, err = regexp.Compile(rx)
|
|
if err != nil {
|
|
log.Fatalf("%s:%d: invalid regexp \"%s\" in ERROR line: %v", t.goFileName(), lineNum, rx, err)
|
|
}
|
|
cache[rx] = re
|
|
}
|
|
prefix := fmt.Sprintf("%s:%d", short, lineNum)
|
|
errs = append(errs, wantedError{
|
|
reStr: rx,
|
|
re: re,
|
|
prefix: prefix,
|
|
lineNum: lineNum,
|
|
file: short,
|
|
})
|
|
}
|
|
}
|
|
|
|
return
|
|
}
|
|
|
|
// defaultRunOutputLimit returns the number of runoutput tests that
|
|
// can be executed in parallel.
|
|
func defaultRunOutputLimit() int {
|
|
const maxArmCPU = 2
|
|
|
|
cpu := runtime.NumCPU()
|
|
if runtime.GOARCH == "arm" && cpu > maxArmCPU {
|
|
cpu = maxArmCPU
|
|
}
|
|
return cpu
|
|
}
|
|
|
|
// checkShouldTest runs sanity checks on the shouldTest function.
|
|
func checkShouldTest() {
|
|
assert := func(ok bool, _ string) {
|
|
if !ok {
|
|
panic("fail")
|
|
}
|
|
}
|
|
assertNot := func(ok bool, _ string) { assert(!ok, "") }
|
|
|
|
// Simple tests.
|
|
assert(shouldTest("// +build linux", "linux", "arm"))
|
|
assert(shouldTest("// +build !windows", "linux", "arm"))
|
|
assertNot(shouldTest("// +build !windows", "windows", "amd64"))
|
|
|
|
// A file with no build tags will always be tested.
|
|
assert(shouldTest("// This is a test.", "os", "arch"))
|
|
|
|
// Build tags separated by a space are OR-ed together.
|
|
assertNot(shouldTest("// +build arm 386", "linux", "amd64"))
|
|
|
|
// Build tags separated by a comma are AND-ed together.
|
|
assertNot(shouldTest("// +build !windows,!plan9", "windows", "amd64"))
|
|
assertNot(shouldTest("// +build !windows,!plan9", "plan9", "386"))
|
|
|
|
// Build tags on multiple lines are AND-ed together.
|
|
assert(shouldTest("// +build !windows\n// +build amd64", "linux", "amd64"))
|
|
assertNot(shouldTest("// +build !windows\n// +build amd64", "windows", "amd64"))
|
|
|
|
// Test that (!a OR !b) matches anything.
|
|
assert(shouldTest("// +build !windows !plan9", "windows", "amd64"))
|
|
}
|
|
|
|
// envForDir returns a copy of the environment
|
|
// suitable for running in the given directory.
|
|
// The environment is the current process's environment
|
|
// but with an updated $PWD, so that an os.Getwd in the
|
|
// child will be faster.
|
|
func envForDir(dir string) []string {
|
|
env := os.Environ()
|
|
for i, kv := range env {
|
|
if strings.HasPrefix(kv, "PWD=") {
|
|
env[i] = "PWD=" + dir
|
|
return env
|
|
}
|
|
}
|
|
env = append(env, "PWD="+dir)
|
|
return env
|
|
}
|
|
|
|
func getenv(key, def string) string {
|
|
value := os.Getenv(key)
|
|
if value != "" {
|
|
return value
|
|
}
|
|
return def
|
|
}
|