feat: implemented first version

src/config/repo.go

@@ -0,0 +1,63 @@
+// this file implements configurations for repositories
+package config
+
+import (
+	"io"
+
+	"github.com/spf13/viper"
+)
+
+// RepoConfig holds all configurations for the repo we're running on
+type RepoConfig struct {
+	// DefaultBranch where we look for the configuration file
+	DefaultBranch string `mapstructure:"default-branch"`
+	// NameTemplate template for the release name
+	NameTemplate string `mapstructure:"name-template"`
+	// TagTemplate template for the release tag
+	TagTemplate     string `mapstructure:"tag-template"`
+	VersionResolver struct {
+		Major struct {
+			Labels []string
+		}
+		Minor struct {
+			Labels []string
+		}
+		Patch struct {
+			Labels []string
+		}
+		Default string
+	} `mapstructure:"version-resolver"`
+}
+
+// ReadRepoConfig reads in the yaml config found in the default branch of the project and adds sensible defaults if values aren't set
+func ReadRepoConfig(in io.Reader, defaultBranch string) (*RepoConfig, error) {
+	vv := viper.New()
+	vv.SetConfigType("yaml")
+
+	err := vv.ReadConfig(in)
+	if err != nil {
+		return nil, err
+	}
+
+	// we set defaults here but if they are present in the configuration file they will be overwritten
+	cfg := &RepoConfig{
+		DefaultBranch: defaultBranch,
+		NameTemplate:  "v$RESOLVED_VERSION",
+		TagTemplate:   "v$RESOLVED_VERSION",
+		VersionResolver: struct {
+			Major   struct{ Labels []string }
+			Minor   struct{ Labels []string }
+			Patch   struct{ Labels []string }
+			Default string
+		}{
+			Major:   struct{ Labels []string }{[]string{"major"}},
+			Minor:   struct{ Labels []string }{[]string{"minor"}},
+			Patch:   struct{ Labels []string }{[]string{"patch"}},
+			Default: "minor",
+		},
+	}
+
+	vv.Unmarshal(&cfg)
+
+	return cfg, nil
+}