Load and intialize skinstore plugins

.gitignore

@@ -0,0 +1,16 @@
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Dependency directories (remove the comment below to include it)
+# vendor/
+plugins/

go.mod

@@ -0,0 +1,8 @@
+module github.com/josephbmanley/OpenSkins
+
+go 1.13
+
+require (
+	github.com/josephbmanley/OpenSkins-Common v0.0.0-20201226022245-12099a28475a
+	github.com/sirupsen/logrus v1.7.0
+)

go.sum

@@ -0,0 +1,9 @@
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/josephbmanley/OpenSkins-Common v0.0.0-20201226022245-12099a28475a h1:bW/ahOovqRP2r1Ynp4WXxrOCiHq1vqye8RFyYLIZ6hg=
+github.com/josephbmanley/OpenSkins-Common v0.0.0-20201226022245-12099a28475a/go.mod h1:xmRLNQLOMLqiQ2hzP81mdsNbu6ZxyLozoVWaR2A0BMY=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/sirupsen/logrus v1.7.0 h1:ShrD1U9pZB12TX0cVy0DtePoCH97K8EtX+mg7ZARUtM=
+github.com/sirupsen/logrus v1.7.0/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
+github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
+golang.org/x/sys v0.0.0-20191026070338-33540a1f6037 h1:YyJpGZS1sBuBCzLAR1VEpK193GlqGZbnPFnPV/5Rsb4=
+golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=

main.go

@@ -0,0 +1,50 @@
+package main
+
+import (
+	"fmt"
+	"github.com/josephbmanley/OpenSkins-Common/datastore"
+	"github.com/josephbmanley/OpenSkins/pluginmanager"
+	log "github.com/sirupsen/logrus"
+	"os"
+	pas "plugin"
+)
+
+const plugindirectory = "./plugins"
+
+func main() {
+
+	pluginFiles, err := pluginmanager.GetPlugins(plugindirectory)
+	if err != nil {
+		log.Warningln(fmt.Sprintf("Failed to read plugins directory: %v", err.Error()))
+	}
+
+	for _, file := range pluginFiles {
+		log.Infoln(fmt.Sprintf("Loading plugin: %v", file))
+		plugin, err := pas.Open(file)
+		if err != nil {
+			log.Fatalln(fmt.Sprintf("Failed to load plugin '%v': %v", file, err.Error()))
+			os.Exit(1)
+		}
+
+		symSkinstore, err := plugin.Lookup("SkinstoreModule")
+		if err != nil {
+			log.Fatalln(fmt.Sprintf("Failed to load plugin '%v': %v", file, err.Error()))
+			os.Exit(1)
+		}
+
+		var skinstore datastore.Skinstore
+		skinstore, ok := symSkinstore.(datastore.Skinstore)
+		if !ok {
+			log.Fatalln(fmt.Sprintf("Invalid type for Skinstore in plugin '%v'", file))
+			os.Exit(1)
+		}
+
+		err = skinstore.Initialize()
+		if err != nil {
+			log.Fatalln(fmt.Sprintf("Failed to intialize Skinstore in plugin '%v'", file))
+			os.Exit(1)
+		}
+
+	}
+
+}

pluginmanager/helpers.go

@@ -0,0 +1,30 @@
+package pluginmanager
+
+import (
+	"os"
+	"path/filepath"
+)
+
+// GetPlugins gets plugin files in directory
+func GetPlugins(pluginDir string) ([]string, error) {
+	pattern := "*.so"
+	var matches []string
+	err := filepath.Walk(pluginDir, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+		if info.IsDir() {
+			return nil
+		}
+		if matched, err := filepath.Match(pattern, filepath.Base(path)); err != nil {
+			return err
+		} else if matched {
+			matches = append(matches, path)
+		}
+		return nil
+	})
+	if err != nil {
+		return nil, err
+	}
+	return matches, nil
+}