Add config w/ version information

1 files changed, 22 insertions, 9 deletions

diff --git a/config.go b/config.go
index d2d32e9..88495e3 100644
--- a/config.go
+++ b/config.go
@@ -4,19 +4,19 @@ import (
   "github.com/BurntSushi/toml"
   "log"
   "path"
+  "strings"
 )
 
-type planrConfig struct {
-  Version string
-  Project_title string
+type Config struct {
+  Version      string
 }
 
-const PLANR_CONFIG = "config.toml"
+const PLANR_CONFIG_FILE = "config.toml"
 
-func decodeConfig(configDir string) planrConfig {
-  cfg := planrConfig { }
+func DecodeConfig(configDir string) Config {
+  cfg := Config { }
 
-  configFile := path.Join(configDir, PLANR_CONFIG)
+  configFile := path.Join(configDir, PLANR_CONFIG_FILE)
 
   if _, err := toml.DecodeFile(configFile, &cfg); err != nil {
     // TODO: handle missing config
@@ -26,6 +26,19 @@ func decodeConfig(configDir string) planrConfig {
   return cfg
 }
 
-func (cfg planrConfig) isIncompatibleWithVersion() bool {
-  return cfg.Version > VERSION
+func (cfg Config) IncompatibleWithVersion() bool {
+  if strings.Count(cfg.Version, ".") != 2 {
+    log.Fatalf("Version %s is not semantic", cfg.Version)
+  }
+
+  cfgbits := strings.SplitN(cfg.Version, ".", 2)
+  bits := strings.SplitN(VERSION, ".", 2)
+
+  // major version change
+  if cfgbits[0] != bits[0] {
+    return true
+  }
+
+  // Config newer, possible feature additions
+  return cfgbits[1] > bits[1]
 }