Support fallback conf

caravan/conf.go

@@ -52,8 +52,14 @@ func LoadFrom(path, spec string) (*Conf, error) {
 	if err != nil {
 		return nil, err
 	}
-	if spec, ok := conf[spec]; ok {
-		return &spec, nil
+	if specConf, ok := conf[spec]; ok {
+		return &specConf, nil
+	}
+	if spec == DefaultSpec && len(conf) == 1 {
+		for specName, specConf := range conf {
+			PrintNotice("No spec name specified, choose", specName, "instead")
+			return &specConf, nil
+		}
 	}
 	return nil, errors.New("No spec")
 }

caravan/conf_test.go

@@ -18,6 +18,15 @@ func TestLoadConf(t *testing.T) {
 	assert.Error(t, err)
 }
 
+func TestLoadFallbackConf(t *testing.T) {
+	var err error
+	spec, err := LoadFrom("../fixtures/caravan_fallback.yml", "master")
+	assert.NoError(t, err)
+	assert.Equal(t, "/path/to/fallback", spec.Source)
+	_, err = LoadFrom("../fixtures/caravan_fallback_error.yml", "master")
+	assert.Error(t, err)
+}
+
 func TestCreateDefault(t *testing.T) {
 	err := CreateDefault("../fixtures/testoutput/caravan.yml")
 	assert.NoError(t, err)

fixtures/caravan_fallback.yml

@@ -0,0 +1,9 @@
+fallback:
+  src: /path/to/fallback
+  dst: /Users/david/dev/test/to
+  debug: false
+  deploy_mode: rsync
+  incremental: true
+  exclude:
+  - .git
+  once: false

fixtures/caravan_fallback_error.yml

@@ -0,0 +1,18 @@
+fallback:
+  src: /path/to/fallback
+  dst: /Users/david/dev/test/to
+  debug: false
+  deploy_mode: rsync
+  incremental: true
+  exclude:
+  - .git
+  once: false
+fallbackerror:
+  src: /path/to/fallback
+  dst: /Users/david/dev/test/to
+  debug: false
+  deploy_mode: rsync
+  incremental: true
+  exclude:
+  - .git
+  once: false

process.go

@@ -9,7 +9,7 @@ import (
 	"github.com/crispgm/go-van/deploy"
 )
 
-const goVanVersion = "2.1.1"
+const goVanVersion = "2.2.0"
 
 var (
 	errFileExisted     = errors.New("Conf file existed")