test crosscompile feature with goloader

This commit is contained in:
Aliberk Sandıkçı 2023-09-01 10:59:39 +03:00
parent 31d3dadc52
commit e2557da13f
Signed by: asandikci
GPG key ID: 25C67A03B5666BC1
8 changed files with 74 additions and 46 deletions

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@ -1,5 +1,11 @@
This branch uses unofficial goloader implementation, see https://pkg.go.dev/github.com/eh-steve/goloader, https://github.com/eh-steve/goloader and https://git.aliberksandikci.com.tr/Liderahenk/ahenk-docs/src/branch/main/dev/resources.md#goloader-plugin-logic for more information
---
#### When building for windows:
- change `.vscode/settings.json` to `"go.buildFlags": ["-tags=windows"],`
- change `cmd/go-loader-test/plugin-manager.go` to `BuildEnv: []string{"GOOS=windows"},`
---
# Pros
- Fast, Lightweight

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@ -10,9 +10,9 @@ func PluginManager(params ...string) {
conf := jit.BuildConfig{
KeepTempFiles: false, // Files are copied/written to a temp dir to ensure it is writable. This retains the temporary copies
ExtraBuildFlags: []string{"-x"}, // Flags passed to go build command
BuildEnv: []string{"GOOS=windows"}, // Env vars to set for go build toolchain
BuildEnv: []string{"GOOS=darwin"}, // Env vars to set for go build toolchain
TmpDir: "/tmp/inner", // To control where temporary files are copied
DebugLog: true, //
DebugLog: false, //
}
loadable, err := jit.BuildGoPackage(conf, "plugins/tmptest/")
@ -26,12 +26,6 @@ func PluginManager(params ...string) {
if err != nil {
panic(err)
}
// defer func() {
// err = module.Unload()
// if err != nil {
// panic(err)
// }
// }()
switch f := symbols["MyFunc"].(type) {
case func([]byte) (interface{}, error):
result, err := f([]byte(`{"k":"v"}`))
@ -48,4 +42,39 @@ func PluginManager(params ...string) {
if err != nil {
panic(err)
}
//
//
//
//
//
loadable2, err := jit.BuildGoPackage(conf, "plugins/addsymbol/")
if err != nil {
panic(err)
}
module2, err := loadable2.Load()
// module.SymbolsByPkg is a map[string]map[string]interface{} of all packages and their exported functions and global vars
symbols2 := module2.SymbolsByPkg[loadable2.ImportPath]
if err != nil {
panic(err)
}
switch f := symbols2["Symbol"].(type) {
case func(a, b string) (interface{}, error):
result, err := f("a", "b")
if err != nil {
panic(err)
}
fmt.Println(result)
default:
fmt.Println(f)
panic("Function signature was not what was expected")
}
err = module2.Unload()
if err != nil {
panic(err)
}
}

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@ -1,26 +0,0 @@
package main
import (
"fmt"
"os"
"plugin"
"git.aliberksandikci.com.tr/asandikci/go-loader-test/pkg/utils"
)
func LoadPlugin(plugName string, chn chan interface{}) {
plug, err := plugin.Open(PluginDir + plugName + ".so")
utils.Check(err)
symPlug, err := plug.Lookup(utils.FirstUpperEN(plugName) + "Connect")
utils.Check(err)
var plugOut interface{}
plugOut, ok := symPlug.(interface{})
if !ok {
fmt.Println("unexpected type from module symbol")
os.Exit(1)
}
chn <- plugOut
}

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go-loader-test Executable file

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@ -0,0 +1,5 @@
package addsymbol
func Symbol(a, b string) (interface{}, error) {
return symbol(a, b), nil
}

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@ -0,0 +1,7 @@
// go:build linux && !windows
package addsymbol
func symbol(a, b string) string {
return a + "+" + b + "=linux"
}

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@ -0,0 +1,7 @@
// go:build windows
package addsymbol
func symbol(a, b string) string {
return a + "-" + b + "=windows"
}

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@ -1,11 +1,11 @@
package mypackage
func Info() map[string]interface{} {
return map[string]interface{}{
"name": "tmptest",
"version": "1.0.2",
"support": "any",
"description": "Temporary testing",
"developer": "asandikci@aliberksandikci.com.tr",
}
}
// func Info() map[string]interface{} {
// return map[string]interface{}{
// "name": "tmptest",
// "version": "1.0.2",
// "support": "any",
// "description": "Temporary testing",
// "developer": "asandikci@aliberksandikci.com.tr",
// }
// }