go build
[!cgo] skip
cc -c testdata/mumble.c
+[GOEXPERIMENT:fieldtrack] help exec
-- go.mod --
module main
t.Fatal(err)
}
engine := &script.Engine{
- Conds: scriptConditions(),
+ Conds: scriptConditions(t),
Cmds: scriptCommands(quitSignal(), gracePeriod),
Quiet: !testing.Verbose(),
}
"cmd/internal/script/scripttest"
"errors"
"fmt"
- "internal/buildcfg"
- "internal/platform"
"internal/testenv"
"os"
"os/exec"
"path/filepath"
"runtime"
"runtime/debug"
- "strings"
"sync"
+ "testing"
)
-func scriptConditions() map[string]script.Cond {
+func scriptConditions(t *testing.T) map[string]script.Cond {
conds := scripttest.DefaultConds()
+ scripttest.AddToolChainScriptConditions(t, conds, goHostOS, goHostArch)
+
add := func(name string, cond script.Cond) {
if _, ok := conds[name]; ok {
panic(fmt.Sprintf("condition %q is already registered", name))
}
add("abscc", script.Condition("default $CC path is absolute and exists", defaultCCIsAbsolute))
- add("asan", sysCondition("-asan", platform.ASanSupported, true))
- add("buildmode", script.PrefixCondition("go supports -buildmode=<suffix>", hasBuildmode))
add("case-sensitive", script.OnceCondition("$WORK filesystem is case-sensitive", isCaseSensitive))
add("cc", script.PrefixCondition("go env CC = <suffix> (ignoring the go/env file)", ccIs))
- add("cgo", script.BoolCondition("host CGO_ENABLED", testenv.HasCGO()))
- add("cgolinkext", script.Condition("platform requires external linking for cgo", cgoLinkExt))
- add("cross", script.BoolCondition("cmd/go GOOS/GOARCH != GOHOSTOS/GOHOSTARCH", goHostOS != runtime.GOOS || goHostArch != runtime.GOARCH))
- add("fuzz", sysCondition("-fuzz", platform.FuzzSupported, false))
- add("fuzz-instrumented", sysCondition("-fuzz with instrumentation", platform.FuzzInstrumented, false))
add("git", lazyBool("the 'git' executable exists and provides the standard CLI", hasWorkingGit))
- add("GODEBUG", script.PrefixCondition("GODEBUG contains <suffix>", hasGodebug))
- add("GOEXPERIMENT", script.PrefixCondition("GOEXPERIMENT <suffix> is enabled", hasGoexperiment))
- add("go-builder", script.BoolCondition("GO_BUILDER_NAME is non-empty", testenv.Builder() != ""))
- add("link", lazyBool("testenv.HasLink()", testenv.HasLink))
- add("msan", sysCondition("-msan", platform.MSanSupported, true))
- add("mustlinkext", script.Condition("platform always requires external linking", mustLinkExt))
add("net", script.PrefixCondition("can connect to external network host <suffix>", hasNet))
- add("pielinkext", script.Condition("platform requires external linking for PIE", pieLinkExt))
- add("race", sysCondition("-race", platform.RaceDetectorSupported, true))
- add("symlink", lazyBool("testenv.HasSymlink()", testenv.HasSymlink))
add("trimpath", script.OnceCondition("test binary was built with -trimpath", isTrimpath))
return conds
return cfg.DefaultCC(GOOS, GOARCH) == want, nil
}
-func sysCondition(flag string, f func(goos, goarch string) bool, needsCgo bool) script.Cond {
- return script.Condition(
- "GOOS/GOARCH supports "+flag,
- func(s *script.State) (bool, error) {
- GOOS, _ := s.LookupEnv("GOOS")
- GOARCH, _ := s.LookupEnv("GOARCH")
- cross := goHostOS != GOOS || goHostArch != GOARCH
- return (!needsCgo || (testenv.HasCGO() && !cross)) && f(GOOS, GOARCH), nil
- })
-}
-
-func hasBuildmode(s *script.State, mode string) (bool, error) {
- GOOS, _ := s.LookupEnv("GOOS")
- GOARCH, _ := s.LookupEnv("GOARCH")
- return platform.BuildModeSupported(runtime.Compiler, mode, GOOS, GOARCH), nil
-}
-
var scriptNetEnabled sync.Map // testing.TB → already enabled
func hasNet(s *script.State, host string) (bool, error) {
return true, nil
}
-func hasGodebug(s *script.State, value string) (bool, error) {
- godebug, _ := s.LookupEnv("GODEBUG")
- for _, p := range strings.Split(godebug, ",") {
- if strings.TrimSpace(p) == value {
- return true, nil
- }
- }
- return false, nil
-}
-
-func hasGoexperiment(s *script.State, value string) (bool, error) {
- GOOS, _ := s.LookupEnv("GOOS")
- GOARCH, _ := s.LookupEnv("GOARCH")
- goexp, _ := s.LookupEnv("GOEXPERIMENT")
- flags, err := buildcfg.ParseGOEXPERIMENT(GOOS, GOARCH, goexp)
- if err != nil {
- return false, err
- }
- for _, exp := range flags.All() {
- if value == exp {
- return true, nil
- }
- if strings.TrimPrefix(value, "no") == strings.TrimPrefix(exp, "no") {
- return false, nil
- }
- }
- return false, fmt.Errorf("unrecognized GOEXPERIMENT %q", value)
-}
-
func isCaseSensitive() (bool, error) {
tmpdir, err := os.MkdirTemp(testTmpDir, "case-sensitive")
if err != nil {
_, err := exec.LookPath("git")
return err == nil
}
-
-func cgoLinkExt(s *script.State) (bool, error) {
- GOOS, _ := s.LookupEnv("GOOS")
- GOARCH, _ := s.LookupEnv("GOARCH")
- return platform.MustLinkExternal(GOOS, GOARCH, true), nil
-}
-
-func mustLinkExt(s *script.State) (bool, error) {
- GOOS, _ := s.LookupEnv("GOOS")
- GOARCH, _ := s.LookupEnv("GOARCH")
- return platform.MustLinkExternal(GOOS, GOARCH, false), nil
-}
-
-func pieLinkExt(s *script.State) (bool, error) {
- GOOS, _ := s.LookupEnv("GOOS")
- GOARCH, _ := s.LookupEnv("GOARCH")
- return !platform.InternalLinkPIESupported(GOOS, GOARCH), nil
-}
--- /dev/null
+// Copyright 2024 The Go 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 scripttest
+
+import (
+ "cmd/internal/script"
+ "fmt"
+ "internal/buildcfg"
+ "internal/platform"
+ "internal/testenv"
+ "runtime"
+ "strings"
+ "testing"
+)
+
+// AddToolChainConditions accepts a script.Cond map and adds into it a
+// set of commonly used conditions for doing toolchains testing,
+// including whether the platform supports cgo, a buildmode condition,
+// support for GOEXPERIMENT testing, etc. Callers must also pass in
+// current GOHOSTOOS/GOHOSTARCH settings, since some of the conditions
+// introduced can be influenced by them.
+func AddToolChainScriptConditions(t *testing.T, conds map[string]script.Cond, goHostOS, goHostArch string) {
+ add := func(name string, cond script.Cond) {
+ if _, ok := conds[name]; ok {
+ t.Fatalf("condition %q is already registered", name)
+ }
+ conds[name] = cond
+ }
+
+ lazyBool := func(summary string, f func() bool) script.Cond {
+ return script.OnceCondition(summary, func() (bool, error) { return f(), nil })
+ }
+
+ add("asan", sysCondition("-asan", platform.ASanSupported, true, goHostOS, goHostArch))
+ add("buildmode", script.PrefixCondition("go supports -buildmode=<suffix>", hasBuildmode))
+ add("cgo", script.BoolCondition("host CGO_ENABLED", testenv.HasCGO()))
+ add("cgolinkext", script.Condition("platform requires external linking for cgo", cgoLinkExt))
+ add("cross", script.BoolCondition("cmd/go GOOS/GOARCH != GOHOSTOS/GOHOSTARCH", goHostOS != runtime.GOOS || goHostArch != runtime.GOARCH))
+ add("fuzz", sysCondition("-fuzz", platform.FuzzSupported, false, goHostOS, goHostArch))
+ add("fuzz-instrumented", sysCondition("-fuzz with instrumentation", platform.FuzzInstrumented, false, goHostOS, goHostArch))
+ add("GODEBUG", script.PrefixCondition("GODEBUG contains <suffix>", hasGodebug))
+ add("GOEXPERIMENT", script.PrefixCondition("GOEXPERIMENT <suffix> is enabled", hasGoexperiment))
+ add("go-builder", script.BoolCondition("GO_BUILDER_NAME is non-empty", testenv.Builder() != ""))
+ add("link", lazyBool("testenv.HasLink()", testenv.HasLink))
+ add("msan", sysCondition("-msan", platform.MSanSupported, true, goHostOS, goHostArch))
+ add("mustlinkext", script.Condition("platform always requires external linking", mustLinkExt))
+ add("pielinkext", script.Condition("platform requires external linking for PIE", pieLinkExt))
+ add("race", sysCondition("-race", platform.RaceDetectorSupported, true, goHostOS, goHostArch))
+ add("symlink", lazyBool("testenv.HasSymlink()", testenv.HasSymlink))
+}
+
+func sysCondition(flag string, f func(goos, goarch string) bool, needsCgo bool, goHostOS, goHostArch string) script.Cond {
+ return script.Condition(
+ "GOOS/GOARCH supports "+flag,
+ func(s *script.State) (bool, error) {
+ GOOS, _ := s.LookupEnv("GOOS")
+ GOARCH, _ := s.LookupEnv("GOARCH")
+ cross := goHostOS != GOOS || goHostArch != GOARCH
+ return (!needsCgo || (testenv.HasCGO() && !cross)) && f(GOOS, GOARCH), nil
+ })
+}
+
+func hasBuildmode(s *script.State, mode string) (bool, error) {
+ GOOS, _ := s.LookupEnv("GOOS")
+ GOARCH, _ := s.LookupEnv("GOARCH")
+ return platform.BuildModeSupported(runtime.Compiler, mode, GOOS, GOARCH), nil
+}
+
+func cgoLinkExt(s *script.State) (bool, error) {
+ GOOS, _ := s.LookupEnv("GOOS")
+ GOARCH, _ := s.LookupEnv("GOARCH")
+ return platform.MustLinkExternal(GOOS, GOARCH, true), nil
+}
+
+func mustLinkExt(s *script.State) (bool, error) {
+ GOOS, _ := s.LookupEnv("GOOS")
+ GOARCH, _ := s.LookupEnv("GOARCH")
+ return platform.MustLinkExternal(GOOS, GOARCH, false), nil
+}
+
+func pieLinkExt(s *script.State) (bool, error) {
+ GOOS, _ := s.LookupEnv("GOOS")
+ GOARCH, _ := s.LookupEnv("GOARCH")
+ return !platform.InternalLinkPIESupported(GOOS, GOARCH), nil
+}
+
+func hasGodebug(s *script.State, value string) (bool, error) {
+ godebug, _ := s.LookupEnv("GODEBUG")
+ for _, p := range strings.Split(godebug, ",") {
+ if strings.TrimSpace(p) == value {
+ return true, nil
+ }
+ }
+ return false, nil
+}
+
+func hasGoexperiment(s *script.State, value string) (bool, error) {
+ GOOS, _ := s.LookupEnv("GOOS")
+ GOARCH, _ := s.LookupEnv("GOARCH")
+ goexp, _ := s.LookupEnv("GOEXPERIMENT")
+ flags, err := buildcfg.ParseGOEXPERIMENT(GOOS, GOARCH, goexp)
+ if err != nil {
+ return false, err
+ }
+ for _, exp := range flags.All() {
+ if value == exp {
+ return true, nil
+ }
+ if strings.TrimPrefix(value, "no") == strings.TrimPrefix(exp, "no") {
+ return false, nil
+ }
+ }
+ return false, fmt.Errorf("unrecognized GOEXPERIMENT %q", value)
+}
cmds[name] = cmd
}
- addcond := func(name string, cond script.Cond) {
- if _, ok := conds[name]; ok {
- panic(fmt.Sprintf("condition %q is already registered", name))
- }
- conds[name] = cond
- }
-
prependToPath := func(env []string, dir string) {
found := false
for k := range env {
cccmd := script.Program(goEnv("CC"), interrupt, gracePeriod)
addcmd("go", gocmd)
addcmd("cc", cccmd)
- addcond("cgo", script.BoolCondition("host CGO_ENABLED", testenv.HasCGO()))
+
+ // Add various helpful conditions related to builds and toolchain use.
+ goHostOS, goHostArch := goEnv("GOHOSTOS"), goEnv("GOHOSTARCH")
+ AddToolChainScriptConditions(t, conds, goHostOS, goHostArch)
// Environment setup.
env := os.Environ()