move in a common place. mutex lock access (seems to work)v0.0.26

1 files changed, 70 insertions, 0 deletions

diff --git a/config.Save.go b/config.Save.go
index d7d0bbf..c5aaeb7 100644
--- a/config.Save.go
+++ b/config.Save.go
@@ -3,10 +3,27 @@ package config
 import (
 	"os"
 	"path/filepath"
+	"sync"
 )
 
+// an experiment to see if this is useful
+var saveMu sync.RWMutex
+
+// returns true if config is working okay
+func InitValid() bool {
+	saveMu.Lock()
+	defer saveMu.Unlock()
+	if configPB == nil {
+		// todo: try to re-init it here
+		return false
+	}
+	return true
+}
+
 // saves your applications config file
 func Save() error {
+	saveMu.Lock()
+	defer saveMu.Unlock()
 	basedir, _ := filepath.Split(configPB.Filename)
 	if err := os.MkdirAll(basedir, os.ModePerm); err != nil {
 		return err
@@ -14,3 +31,56 @@ func Save() error {
 	err := SavePB(configPB)
 	return err
 }
+
+func Get(flag string) string {
+	saveMu.Lock()
+	defer saveMu.Unlock()
+	if configPB == nil {
+		return ""
+	}
+	found := configPB.FindByKey(flag)
+	if found == nil {
+		return ""
+	}
+	return found.Value
+}
+
+func GetPanic(flag string) string {
+	saveMu.Lock()
+	defer saveMu.Unlock()
+	if configPB == nil {
+		configPanic(flag)
+	}
+	found := configPB.FindByKey(flag)
+	if found == nil {
+		configPanic(flag)
+	}
+	return found.Value
+}
+
+func configPanic(varname string) {
+	saveMu.Lock()
+	defer saveMu.Unlock()
+	if configPB == nil {
+		panic("config file is nil")
+	}
+	panic("config name '" + varname + "' not found")
+}
+
+func Set(key string, newValue string) error {
+	saveMu.Lock()
+	defer saveMu.Unlock()
+	if configPB == nil {
+		return NotInitialized
+	}
+	found := configPB.FindByKey(key)
+	if found != nil {
+		found.Value = newValue
+	}
+
+	newvar := new(Config)
+	newvar.Key = key
+	newvar.Value = newValue
+	configPB.Append(newvar)
+	return nil
+}