add fallback logic to use cwd UI bundle

Author: neel1996

api/settings_api.go

@@ -8,6 +8,7 @@ import (
 	"github.com/neel1996/gitconvex-server/utils"
 	"io/ioutil"
 	"os"
+	"path/filepath"
 )
 
 var logger global.Logger
@@ -36,7 +37,14 @@ func UpdatePortNumber(newPort string) string {
 		newEnvData.Port = newPort
 		newEnvData.DataBaseFile = envData.DataBaseFile
 
-		cwd, _ := os.Getwd()
+		execName, execErr := os.Executable()
+		if execErr != nil {
+			logger.Log(execErr.Error(), global.StatusError)
+			return global.PortUpdateError
+		}
+
+		cwd := filepath.Dir(execName)
+
 		fileString := cwd + "/" + global.EnvFileName
 		envContent, _ := json.MarshalIndent(&newEnvData, "", " ")
 		writeErr := ioutil.WriteFile(fileString, envContent, 0755)
@@ -61,7 +69,14 @@ func UpdateDBFilePath(newFilePath string) string {
 		newEnvData.Port = envData.Port
 		newEnvData.DataBaseFile = newFilePath
 
-		cwd, _ := os.Getwd()
+		execName, execErr := os.Executable()
+		if execErr != nil {
+			logger.Log(execErr.Error(), global.StatusError)
+			return global.DataFileUpdateError
+		}
+
+		cwd := filepath.Dir(execName)
+
 		fileString := cwd + "/" + global.EnvFileName
 		envContent, _ := json.MarshalIndent(&newEnvData, "", " ")
 		writeErr := ioutil.WriteFile(fileString, envContent, 0755)

server.go

@@ -73,6 +73,18 @@ func main() {
 		logger.Log("Unable to serve UI bundle", global.StatusError)
 	}
 
+	// Setting the server to use the UI bundle from the current directory if the bundle is unavailable in the executable directory
+	// Resolved UI file server issue when running docker containers
+	_, uiOpenErr := os.Open(buildPath)
+	if uiOpenErr != nil {
+		logger.Log(uiOpenErr.Error(), global.StatusError)
+		cwd, _ := os.Getwd()
+		if cwd != "" {
+			logger.Log("Using UI bundle from the current directory -> "+cwd, global.StatusInfo)
+			buildPath = fmt.Sprintf("%s/gitconvex-ui", cwd)
+		}
+	}
+
 	// Static file supplier for hosting the react static assets and scripts
 	logger.Log(fmt.Sprintf("Serving static files from -> %s", staticPath), global.StatusInfo)
 	router.PathPrefix("/static").Handler(http.StripPrefix("/static", http.FileServer(http.Dir(staticPath))))