Implemented config migration

config/config.go

@@ -22,7 +22,8 @@ type Config struct {
 
   ConnectionString    string
 
-  CachePath           string
+  CachePath           string // Deprecated, should be removed soon
+	DatabaseCachePath   string
   ProgramCachePath    string
 
   Logfile             string
@@ -75,9 +76,11 @@ func (cfg *Config) Persist() (error) {
 }
 
 func (cfg *Config) WasSetup() (bool) {
-  if cfg.CachePath == "" ||
+  if cfg.DatabaseCachePath == "" ||
+		 cfg.ProgramCachePath == "" ||
      cfg.ConnectionString == "" ||
-     cfg.Logfile == "" {
+     cfg.Logfile == "" ||
+		 cfg.Profile.From == "" {
     return false
   }
 
@@ -88,6 +91,9 @@ func (cfg *Config) Setup() (error) {
   fmt.Printf("\nSUPERHIGHWAY84\n\nInitial Setup\n-------------\n\n")
 
   defaultConnectionString := "/orbitdb/bafyreifdpagppa7ve45odxuvudz5snbzcybwyfer777huckl4li4zbc5k4/superhighway84"
+	if cfg.ConnectionString != "" {
+		defaultConnectionString = cfg.ConnectionString
+	}
   fmt.Printf("Database connection string [%s]: ", defaultConnectionString)
   fmt.Scanln(&cfg.ConnectionString)
   if strings.TrimSpace(cfg.ConnectionString) == "" {
@@ -100,22 +106,35 @@ func (cfg *Config) Setup() (error) {
   }
 
   defaultDatabaseCachePath := filepath.Join(cacheDir, "superhighway84", "database")
+	// Migration step from old CachePath to new DatabaseCachePath
+	if cfg.CachePath != "" {
+		defaultDatabaseCachePath = cfg.CachePath
+	}
   fmt.Printf("Database cache path [%s]: ", defaultDatabaseCachePath)
-  fmt.Scanln(&cfg.CachePath)
-  if strings.TrimSpace(cfg.CachePath) == "" {
-    cfg.CachePath = defaultDatabaseCachePath
+  fmt.Scanln(&cfg.DatabaseCachePath)
+  if strings.TrimSpace(cfg.DatabaseCachePath) == "" {
+    cfg.DatabaseCachePath = defaultDatabaseCachePath
   }
-  os.MkdirAll(filepath.Dir(cfg.CachePath), 0755)
+  os.MkdirAll(filepath.Dir(cfg.DatabaseCachePath), 0755)
 
   defaultProgramCachePath := filepath.Join(cacheDir, "superhighway84", "program")
+	// Migration step from old CachePath to new DatabaseCachePath
+	if cfg.CachePath != "" {
+		// If the previous CachePath was used, the folder already contains the
+		// OrbitDB, hence we need to find a different place
+		defaultProgramCachePath = filepath.Join(cacheDir, "superhighway84.program")
+	}
   fmt.Printf("Program cache path [%s]: ", defaultProgramCachePath)
   fmt.Scanln(&cfg.ProgramCachePath)
   if strings.TrimSpace(cfg.ProgramCachePath) == "" {
     cfg.ProgramCachePath = defaultProgramCachePath
   }
-  os.MkdirAll(filepath.Dir(cfg.ProgramCachePath), os.ModeDir)
+  os.MkdirAll(filepath.Dir(cfg.ProgramCachePath), 0755)
 
   defaultLogfile := filepath.Join(cacheDir, "superhighway84.log")
+	if cfg.Logfile != "" {
+		defaultLogfile = cfg.Logfile
+	}
   fmt.Printf("Logfile path [%s]: ", defaultLogfile)
   fmt.Scanln(&cfg.Logfile)
   if strings.TrimSpace(cfg.Logfile) == "" {
@@ -126,13 +145,20 @@ func (cfg *Config) Setup() (error) {
   fmt.Printf("\nProfile information\n-------------------\n\n")
 
   defaultProfileFrom := fmt.Sprintf("%s@localhost", os.Getenv("USER"))
+	if cfg.Profile.From != "" {
+		defaultProfileFrom = cfg.Profile.From
+	}
   fmt.Printf("From [%s]: ", defaultProfileFrom)
   fmt.Scanln(&cfg.Profile.From)
   if strings.TrimSpace(cfg.Profile.From) == "" {
     cfg.Profile.From = defaultProfileFrom
   }
 
-  fmt.Printf("Organization []: ")
+	defaultProfileOrganization := ""
+	if cfg.Profile.Organization != "" {
+		defaultProfileOrganization = cfg.Profile.Organization
+	}
+  fmt.Printf("Organization [%s]: ", defaultProfileOrganization)
   fmt.Scanln(&cfg.Profile.Organization)
 
   return cfg.Persist()

superhighway84.go

@@ -78,7 +78,7 @@ func main() {
   TUI.ArticlesRoots = &articlesRoots
 
 
-  db, err := database.NewDatabase(ctx, cfg.ConnectionString, cfg.CachePath, cch, logger)
+  db, err := database.NewDatabase(ctx, cfg.ConnectionString, cfg.DatabaseCachePath, cch, logger)
   if err != nil {
     log.Panicln(err)
   }