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package proxy
import (
"log"
"os"
"os/exec"
"plugin"
"sync"
)
var pluginsOnce sync.Once
func BuildPlugin() error {
version, err := Version()
if err != nil {
return err
}
if version == "(devel)" {
return buildPluginDev(version)
}
return buildPlugin(version)
}
func buildPlugin(version string) error {
pathVer := "github.com/HimbeerserverDE/mt-multiserver-proxy@" + version
if err := goCmd("get", pathVer); err != nil {
return err
}
if err := goCmd("mod", "tidy"); err != nil {
return err
}
if err := goCmd("build", "-buildmode=plugin"); err != nil {
return err
}
return nil
}
func buildPluginDev(version string) error {
replace := "-replace=github.com/HimbeerserverDE/mt-multiserver-proxy=" + Path()
const dropReplace = "-dropreplace=github.com/HimbeerserverDE/mt-multiserver-proxy"
if err := goCmd("mod", "edit", replace); err != nil {
return err
}
if err := goCmd("mod", "tidy"); err != nil {
return err
}
if err := goCmd("build", "-buildmode=plugin"); err != nil {
return err
}
if err := goCmd("mod", "edit", dropReplace); err != nil {
return err
}
return nil
}
// LoadPlugins loads all plugins. Further calls are no-ops.
// This function is not intended to be called by plugins.
// It is meant for tools such as mt-auth-convert.
func LoadPlugins() {
pluginsOnce.Do(openPlugins)
}
func openPlugins() {
path := Path("plugins")
os.Mkdir(path, 0777)
dir, err := os.ReadDir(path)
if err != nil {
log.Fatal(err)
}
for _, pl := range dir {
if pl.IsDir() && !Conf().NoAutoPlugins {
plPath := path + "/" + pl.Name()
wd, err := os.Getwd()
if err != nil {
log.Fatal(err)
}
if err := os.Chdir(plPath); err != nil {
log.Fatal(err)
}
if err := BuildPlugin(); err != nil {
log.Fatal(err)
}
if err := os.Chdir(wd); err != nil {
log.Fatal(err)
}
_, err = plugin.Open(path + "/" + pl.Name() + "/" + pl.Name() + ".so")
if err != nil {
log.Print(err)
continue
}
log.Println("load auto plugin", pl.Name())
} else if !pl.IsDir() {
_, err := plugin.Open(path + "/" + pl.Name())
if err != nil {
log.Print(err)
continue
}
log.Println("load comp plugin", pl.Name())
}
}
}
func goCmd(args ...string) error {
cmd := exec.Command("go", args...)
cmd.Stdin = os.Stdin
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
return cmd.Run()
}
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