metaplugin generator progres

cmd/i2p.plugin.native.metaplugin/main.go

@@ -5,7 +5,16 @@ import (
 
 	//	"runtime"
 
+	"archive/zip"
+	"flag"
+	"io/ioutil"
+	"log"
+	"os"
+	"path/filepath"
+	"strings"
+
 	. "i2pgit.org/idk/i2p.plugin.native"
+	"i2pgit.org/idk/reseed-tools/su3"
 )
 
 var pc PluginConfig
@@ -14,7 +23,7 @@ var cc ClientConfig
 // The goal here is to create a plugin which can be installed which has no contents, but contains update
 // information for other plugins, i.e.
 //
-// i2p.plugins.tor-manager-amd64
+// i2p.plugins.tor-manager.su3
 //
 // would contain meta-information that matches the $OS and $ARCH of the runtime machine
 // which would then update at the first opportunity, downloading the latest version of the plugin
@@ -22,6 +31,126 @@ var cc ClientConfig
 // it should be nice for the user to be able to install the plugin without having to comb through
 // OS/ARCH pairs they don't really give a damn about.
 
+var wd, wderr = os.Getwd()
+var dir = flag.String("dir", wd, "Directory to look for plugins in")
+
+func flagSet() {
+	if wderr != nil {
+		log.Fatal(wderr)
+	}
+	flag.Parse()
+}
+
+func FindSu3sInDir(dir string) ([]string, error) {
+	files, err := ioutil.ReadDir(dir)
+	if err != nil {
+		return nil, err
+	}
+	var su3s []string
+	for _, f := range files {
+		if f.IsDir() {
+			continue
+		}
+		if strings.HasSuffix(f.Name(), ".su3") {
+			su3s = append(su3s, f.Name())
+		}
+	}
+	return su3s, nil
+}
+
+func MatchSu3sWithOSARCH(su3s []string) []string {
+	var matched []string
+	for _, su3 := range su3s {
+		for _, osarch := range ARCHES {
+			if strings.Contains(su3, osarch) {
+				matched = append(matched, su3)
+			}
+		}
+		for _, osarch := range OSES {
+			if strings.Contains(su3, osarch) {
+				matched = append(matched, su3)
+			}
+		}
+	}
+	return removeDuplicateValues(matched)
+}
+
+func removeDuplicateValues(stringSlice []string) []string {
+	keys := make(map[string]bool)
+	list := []string{}
+
+	// If the key(values of the slice) is not equal
+	// to the already present value in new slice (list)
+	// then we append it. else we jump on another element.
+	for _, entry := range stringSlice {
+		if _, value := keys[entry]; !value {
+			keys[entry] = true
+			list = append(list, entry)
+		}
+	}
+	return list
+}
+
 func main() {
+	flagSet()
+	absdir, err := filepath.Abs(*dir)
+	if err != nil {
+		log.Fatal(err)
+	}
+	su3s, err := FindSu3sInDir(absdir)
+	if err != nil {
+		log.Fatal(err)
+	}
+	su3s = MatchSu3sWithOSARCH(su3s)
+	// extract the plugin.config and the clients.config from topmost su3
+	// and get the plugin name from the plugin.config file.
+	// copy the plugin.config and clients.config to meta/plugin.config and meta/clients.config
+	// create a script that says "this is a meta plugin, downloading an update for the plugin
+	// will install a real version" in each location per-platform, i.e. plugin-name-os-arch
+	// use sh for Linux and OSX and bat for Windows
+	su3file := su3.New()
+	bytes, err := ioutil.ReadFile(filepath.Join(absdir, su3s[0]))
+	if err != nil {
+		log.Fatal(err)
+	}
+	err = su3file.UnmarshalBinary(bytes)
+	if err != nil {
+		log.Fatal(err)
+	}
+	err = ioutil.WriteFile(su3s[0]+".zip", su3file.Content, 0644)
+	zipReader, err := zip.OpenReader(su3s[0] + ".zip")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer zipReader.Close()
+	clientConfig, err := zipReader.Open("clients.config")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer clientConfig.Close()
+	pluginConfig, err := zipReader.Open("plugin.config")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer pluginConfig.Close()
+	clientConfigBytes, err := ioutil.ReadAll(clientConfig)
+	if err != nil {
+		log.Fatal(err)
+	}
+	pluginConfigBytes, err := ioutil.ReadAll(pluginConfig)
+	if err != nil {
+		log.Fatal(err)
+	}
+	os.Mkdir("meta", 0755)
+	replacedClientConfigBytes := []byte(Replace(string(clientConfigBytes)))
+	replacedPluginConfigBytes := []byte(Replace(string(pluginConfigBytes)))
+	err = ioutil.WriteFile("meta/clients.config", replacedClientConfigBytes, 0644)
+	if err != nil {
+		log.Fatal(err)
+	}
+	err = ioutil.WriteFile("meta/plugin.config", replacedPluginConfigBytes, 0644)
+	if err != nil {
+		log.Fatal(err)
+	}
 
 }