plugin: make the plugin preload work again

License: MIT
Signed-off-by: Jakub Sztandera <[email protected]>

plugin/plugins/.gitignore

@@ -1 +1,2 @@
 *.so
+*/main

plugin/plugins/Rules.mk

@@ -2,9 +2,16 @@ include mk/header.mk
 
 $(d)_plugins:=$(d)/git
 $(d)_plugins_so:=$(addsuffix .so,$($(d)_plugins))
+$(d)_plugins_main:=$(addsuffix /main/main.go,$($(d)_plugins))
 
+
+$($(d)_plugins_main): d:=$(d)
+$($(d)_plugins_main):
+	$(d)/gen_main.sh "$(dir $@).." "$(call go-pkg-name,$(dir $@)/..)"
+
+$($(d)_plugins_so): %.so : %/main/main.go
 $($(d)_plugins_so): $$(DEPS_GO) ALWAYS
-	go build -buildmode=plugin -i -pkgdir "$$GOPATH/pkg/linux_amd64_dynlink" $(go-flags-with-tags) -o "$@" "$(call go-pkg-name,$(basename $@))"
+	go build -buildmode=plugin -i -pkgdir "$(GOPATH)/pkg/linux_amd64_dynlink" $(go-flags-with-tags) -o "$@" "$(call go-pkg-name,$(basename $@))/main"
 	chmod +x "$@"
 
 CLEAN += $($(d)_plugins_so)

plugin/plugins/gen_main.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+dir=${1:?first paramater with dir to work in is required}
+pkg=${2:?second parameter with full name of the package is required}
+main_pkg="$dir/main"
+
+shortpkg="uniquepkgname"
+
+mkdir -p "$main_pkg"
+
+cat > "$main_pkg/main.go" <<EOL
+package main
+import (
+	$shortpkg "$pkg"
+)
+
+var Plugins = $shortpkg.Plugins
+EOL

plugin/plugins/git/git.go

@@ -1,4 +1,4 @@
-package main
+package git
 
 import (
 	"compress/zlib"