mirror of https://github.com/tailscale/tailscale/
wasm: add test for disallowed JS/WASM dependencies
Ensures that binary size gains like the ones from #4802 and #4813 don't regress. Updates #3517 Signed-off-by: Mihai Parparita <mihai@tailscale.com>pull/4822/head
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// Copyright (c) 2022 Tailscale Inc & 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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// Package jsdeps is a just a list of the packages we import in the
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// JavaScript/WASM build, to let us test that our transitive closure of
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// dependencies on iOS doesn't accidentally grow too large, since binary size
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// is more of a concern there.
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package jsdeps
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import (
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_ "bytes"
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_ "context"
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_ "encoding/hex"
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_ "encoding/json"
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_ "fmt"
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_ "log"
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_ "math/rand"
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_ "net"
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_ "strings"
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_ "time"
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_ "golang.org/x/crypto/ssh"
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_ "inet.af/netaddr"
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_ "tailscale.com/control/controlclient"
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_ "tailscale.com/ipn"
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_ "tailscale.com/ipn/ipnserver"
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_ "tailscale.com/net/netns"
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_ "tailscale.com/net/tsdial"
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_ "tailscale.com/safesocket"
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_ "tailscale.com/tailcfg"
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_ "tailscale.com/types/logger"
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_ "tailscale.com/wgengine"
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_ "tailscale.com/wgengine/netstack"
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_ "tailscale.com/words"
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)
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@ -0,0 +1,42 @@
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// Copyright (c) 2022 Tailscale Inc & 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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// No need to run this on Windows where CI's slow enough. Then we don't need to
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// worry about "go.exe" etc.
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//go:build !windows
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// +build !windows
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package jsdeps
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import (
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"encoding/json"
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"os"
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"os/exec"
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"path/filepath"
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"runtime"
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"testing"
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)
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func TestDeps(t *testing.T) {
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cmd := exec.Command(filepath.Join(runtime.GOROOT(), "bin", "go"), "list", "-json", ".")
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cmd.Env = append(os.Environ(), "GOOS=js", "GOARCH=wasm")
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out, err := cmd.Output()
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if err != nil {
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t.Fatal(err)
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}
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var res struct {
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Deps []string
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}
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if err := json.Unmarshal(out, &res); err != nil {
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t.Fatal(err)
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}
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for _, dep := range res.Deps {
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switch dep {
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case "runtime/pprof", "golang.org/x/net/http2/h2c", "net/http/pprof", "golang.org/x/net/proxy", "github.com/tailscale/goupnp":
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t.Errorf("package %q is not allowed as a dependency on JS", dep)
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}
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}
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t.Logf("got %d dependencies", len(res.Deps))
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}
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