implement application specific Config files (and Verbose())

1 files changed, 76 insertions, 0 deletions

diff --git a/init.go b/init.go
new file mode 100644
index 0000000..eb5afbe
--- /dev/null
+++ b/init.go
@@ -0,0 +1,76 @@
+package config
+
+// this is an experiment at this point to
+// see how this turns out
+
+import (
+	"errors"
+	"fmt"
+	"os"
+	"path/filepath"
+)
+
+var configPB *Configs
+
+// these are normally what are sent from ldflags
+var APPNAME string
+var BUILDTIME string
+var VERSION string
+
+var argv []string
+
+func Init(appname, version, buildtime string, fromargv []string) error {
+	APPNAME = appname
+	VERSION = version
+	BUILDTIME = buildtime
+	argv = fromargv
+
+	configDir, err := os.UserConfigDir()
+	if err != nil {
+		fmt.Println("OS isn't returning UserConfigDir()", err)
+		return err
+	}
+	fullname := filepath.Join(configDir, appname, "config.text")
+	configPB = NewConfigs()
+	err = loadTEXT(configPB, fullname)
+	if err == nil {
+		return nil
+	}
+
+	if errors.Is(err, os.ErrNotExist) {
+		// file doesn't exist, make a new file
+		return makeNewConfigFile(appname)
+	}
+	if errors.Is(err, ErrEmpty) {
+		fmt.Printf("config file size was empty. out of diskspace? %s\n", fullname)
+		return err
+	}
+	fmt.Println("config.Init()", err)
+	// panic("config")
+	return err
+}
+
+func makeNewConfigFile(appname string) error {
+	configDir, err := os.UserConfigDir()
+	if err != nil {
+		fmt.Println("OS isn't returning UserConfigDir()", err)
+		return err
+	}
+	fullname := filepath.Join(configDir, appname, "config.text")
+
+	configPB = NewConfigs()
+	configPB.Filename = fullname
+
+	newvar := new(Config)
+	newvar.Key = "example config var"
+	newvar.Value = "protobufs are neat"
+	configPB.Clone(newvar)
+
+	newvar.Key = "Verbose"
+	newvar.Value = "true"
+	configPB.Clone(newvar)
+
+	// writes the config file to disk
+	err = Save()
+	return err
+}