Merge pull request #371 from boombuler/plugins

Handle Plugins via RT-Files

cmd/micro/micro.go

@@ -243,9 +243,6 @@ func main() {
 	InitCommands()
 	InitBindings()
 
-	// Load the syntax files, including the colorscheme
-	LoadSyntaxFiles()
-
 	// Start the screen
 	InitScreen()
 
@@ -330,11 +327,14 @@ func main() {
 	L.SetGlobal("ListRuntimeFiles", luar.New(L, PluginListRuntimeFiles))
 	L.SetGlobal("AddRuntimeFile", luar.New(L, PluginAddRuntimeFile))
 
-	LoadPlugins()
-
 	jobs = make(chan JobFunction, 100)
 	events = make(chan tcell.Event, 100)
 
+	LoadPlugins()
+
+	// Load the syntax files, including the colorscheme
+	LoadSyntaxFiles()
+
 	for _, t := range tabs {
 		for _, v := range t.views {
 			for _, pl := range loadedPlugins {

cmd/micro/plugin.go

@@ -4,7 +4,6 @@ import (
 	"errors"
 	"io/ioutil"
 	"os"
-	"path/filepath"
 	"strings"
 
 	"github.com/layeh/gopher-luar"
@@ -13,12 +12,6 @@ import (
 
 var loadedPlugins []string
 
-var preInstalledPlugins = []string{
-	"go",
-	"linter",
-	"autoclose",
-}
-
 // Call calls the lua function 'function'
 // If it does not exist nothing happens, if there is an error,
 // the error is returned
@@ -121,48 +114,28 @@ func LuaFunctionJob(function string) func(string, ...string) {
 
 // LoadPlugins loads the pre-installed plugins and the plugins located in ~/.config/micro/plugins
 func LoadPlugins() {
-	files, _ := ioutil.ReadDir(configDir + "/plugins")
-	for _, plugin := range files {
-		if plugin.IsDir() {
-			pluginName := plugin.Name()
-			files, _ := ioutil.ReadDir(configDir + "/plugins/" + pluginName)
-			for _, f := range files {
-				fullPath := filepath.Join(configDir, "plugins", pluginName, f.Name())
-				if f.Name() == pluginName+".lua" {
-					data, _ := ioutil.ReadFile(fullPath)
-					pluginDef := "\nlocal P = {}\n" + pluginName + " = P\nsetmetatable(" + pluginName + ", {__index = _G})\nsetfenv(1, P)\n"
-
-					if err := L.DoString(pluginDef + string(data)); err != nil {
-						TermMessage(err)
-						continue
-					}
-					loadedPlugins = append(loadedPlugins, pluginName)
-				}
-			}
-		}
-	}
-
-	for _, pluginName := range preInstalledPlugins {
+	for _, plugin := range ListRuntimeFiles(RTPlugin) {
 		alreadyExists := false
+		pluginName := plugin.Name()
 		for _, pl := range loadedPlugins {
 			if pl == pluginName {
 				alreadyExists = true
 				break
 			}
 		}
+
 		if !alreadyExists {
-			plugin := "runtime/plugins/" + pluginName + "/" + pluginName + ".lua"
-			data, err := Asset(plugin)
+			data, err := plugin.Data()
 			if err != nil {
-				TermMessage("Error loading pre-installed plugin: " + pluginName)
+				TermMessage("Error loading plugin: " + pluginName)
 				continue
 			}
 			pluginDef := "\nlocal P = {}\n" + pluginName + " = P\nsetmetatable(" + pluginName + ", {__index = _G})\nsetfenv(1, P)\n"
+
 			if err := L.DoString(pluginDef + string(data)); err != nil {
 				TermMessage(err)
 				continue
 			}
-
 			loadedPlugins = append(loadedPlugins, pluginName)
 		}
 	}

cmd/micro/rtfiles.go

@@ -11,6 +11,7 @@ const (
 	RTColorscheme = "colorscheme"
 	RTSyntax      = "syntax"
 	RTHelp        = "help"
+	RTPlugin      = "plugin"
 )
 
 // RuntimeFile allows the program to read runtime data like colorschemes or syntax files
@@ -121,6 +122,26 @@ func InitRuntimeFiles() {
 	add(RTColorscheme, "colorschemes", "*.micro")
 	add(RTSyntax, "syntax", "*.micro")
 	add(RTHelp, "help", "*.md")
+
+	// Search configDir for plugin-scripts
+	files, _ := ioutil.ReadDir(filepath.Join(configDir, "plugins"))
+	for _, f := range files {
+		if f.IsDir() {
+			scriptPath := filepath.Join(configDir, "plugins", f.Name(), f.Name()+".lua")
+			if _, err := os.Stat(scriptPath); err == nil {
+				AddRuntimeFile(RTPlugin, realFile(scriptPath))
+			}
+		}
+	}
+
+	if files, err := AssetDir("runtime/plugins"); err == nil {
+		for _, f := range files {
+			scriptPath := path.Join("runtime/plugins", f, f+".lua")
+			if _, err := AssetInfo(scriptPath); err == nil {
+				AddRuntimeFile(RTPlugin, assetFile(scriptPath))
+			}
+		}
+	}
 }
 
 // PluginReadRuntimeFile allows plugin scripts to read the content of a runtime file