mirror of
https://github.com/tailscale/tailscale.git
synced 2024-11-29 13:05:46 +00:00
652f77d236
Updates tailscale/corp#13775 Co-authored-by: Sonia Appasamy <sonia@tailscale.com> Signed-off-by: Sonia Appasamy <sonia@tailscale.com> Signed-off-by: Will Norris <will@tailscale.com>
86 lines
2.7 KiB
Go
86 lines
2.7 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
|
|
// SPDX-License-Identifier: BSD-3-Clause
|
|
|
|
package web
|
|
|
|
import (
|
|
"log"
|
|
"net/http"
|
|
"net/http/httputil"
|
|
"net/url"
|
|
"os"
|
|
"os/exec"
|
|
"path/filepath"
|
|
"strings"
|
|
|
|
prebuilt "github.com/tailscale/web-client-prebuilt"
|
|
)
|
|
|
|
func assetsHandler(devMode bool) (_ http.Handler, cleanup func()) {
|
|
if devMode {
|
|
// When in dev mode, proxy asset requests to the Vite dev server.
|
|
cleanup := startDevServer()
|
|
return devServerProxy(), cleanup
|
|
}
|
|
return http.FileServer(http.FS(prebuilt.FS())), nil
|
|
}
|
|
|
|
// startDevServer starts the JS dev server that does on-demand rebuilding
|
|
// and serving of web client JS and CSS resources.
|
|
func startDevServer() (cleanup func()) {
|
|
root := gitRootDir()
|
|
webClientPath := filepath.Join(root, "client", "web")
|
|
|
|
yarn := filepath.Join(root, "tool", "yarn")
|
|
node := filepath.Join(root, "tool", "node")
|
|
vite := filepath.Join(webClientPath, "node_modules", ".bin", "vite")
|
|
|
|
log.Printf("installing JavaScript deps using %s... (might take ~30s)", yarn)
|
|
out, err := exec.Command(yarn, "--non-interactive", "-s", "--cwd", webClientPath, "install").CombinedOutput()
|
|
if err != nil {
|
|
log.Fatalf("error running tailscale web's yarn install: %v, %s", err, out)
|
|
}
|
|
log.Printf("starting JavaScript dev server...")
|
|
cmd := exec.Command(node, vite)
|
|
cmd.Dir = webClientPath
|
|
cmd.Stdout = os.Stdout
|
|
cmd.Stderr = os.Stderr
|
|
if err := cmd.Start(); err != nil {
|
|
log.Fatalf("Starting JS dev server: %v", err)
|
|
}
|
|
log.Printf("JavaScript dev server running as pid %d", cmd.Process.Pid)
|
|
return func() {
|
|
cmd.Process.Signal(os.Interrupt)
|
|
err := cmd.Wait()
|
|
log.Printf("JavaScript dev server exited: %v", err)
|
|
}
|
|
}
|
|
|
|
// devServerProxy returns a reverse proxy to the vite dev server.
|
|
func devServerProxy() *httputil.ReverseProxy {
|
|
// We use Vite to develop on the web client.
|
|
// Vite starts up its own local server for development,
|
|
// which we proxy requests to from Server.ServeHTTP.
|
|
// Here we set up the proxy to Vite's server.
|
|
handleErr := func(w http.ResponseWriter, r *http.Request, err error) {
|
|
w.Header().Set("Content-Type", "text/plain")
|
|
w.WriteHeader(http.StatusBadGateway)
|
|
w.Write([]byte("The web client development server isn't running. " +
|
|
"Run `./tool/yarn --cwd client/web start` from " +
|
|
"the repo root to start the development server."))
|
|
w.Write([]byte("\n\nError: " + err.Error()))
|
|
}
|
|
viteTarget, _ := url.Parse("http://127.0.0.1:4000")
|
|
devProxy := httputil.NewSingleHostReverseProxy(viteTarget)
|
|
devProxy.ErrorHandler = handleErr
|
|
return devProxy
|
|
}
|
|
|
|
func gitRootDir() string {
|
|
top, err := exec.Command("git", "rev-parse", "--show-toplevel").Output()
|
|
if err != nil {
|
|
log.Fatalf("failed to find git top level (not in corp git?): %v", err)
|
|
}
|
|
return strings.TrimSpace(string(top))
|
|
}
|