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71 lines
1.2 KiB
Go
71 lines
1.2 KiB
Go
package main
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import (
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_ "embed"
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"fmt"
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"os"
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"os/exec"
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"path"
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"github.com/antonmedv/fx/internal/engine"
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)
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//go:embed npm/index.js
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var src []byte
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func reduce(fns []string) {
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if _, ok := os.LookupEnv("FX_JS"); ok {
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engine.Reduce(fns)
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return
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}
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var deno bool
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bin, err := exec.LookPath("node")
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if err != nil {
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bin, err = exec.LookPath("deno")
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if err != nil {
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engine.Reduce(fns)
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return
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}
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deno = true
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}
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script := path.Join(os.TempDir(), fmt.Sprintf("fx-%v.js", version))
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_, err = os.Stat(script)
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if os.IsNotExist(err) {
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err := os.WriteFile(script, src, 0644)
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if err != nil {
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panic(err)
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}
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}
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env := os.Environ()
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var args []string
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if deno {
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args = []string{"run", "-A", script}
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env = append(env, "V8_FLAGS=--max-old-space-size=16384")
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} else {
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args = []string{script}
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env = append(env, "NODE_OPTIONS=--max-old-space-size=16384")
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}
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args = append(args, fns...)
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cmd := exec.Command(bin, args...)
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cmd.Env = env
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cmd.Stdin = os.Stdin
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cmd.Stdout = os.Stdout
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cmd.Stderr = os.Stderr
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err = cmd.Run()
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switch err := err.(type) {
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case nil:
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os.Exit(0)
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case *exec.ExitError:
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os.Exit(err.ExitCode())
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default:
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panic(err)
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}
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}
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