Support changing godoc instance (#38)

This adds the ability to change the godoc.org instance used by Sally to
link to documentation by providing a new `godoc` section in the
configuration.

1 files changed, 17 insertions, 1 deletions

diff --git a/config.go b/config.go
index 735b147..37045e9 100644
--- a/config.go
+++ b/config.go
@@ -4,14 +4,20 @@ import (
 	"fmt"
 	"io/ioutil"
 	"sort"
+	"strings"
 
-	"gopkg.in/yaml.v2"
+	yaml "gopkg.in/yaml.v2"
 )
 
+const _defaultGodocServer = "godoc.org"
+
 // Config represents the structure of the yaml file
 type Config struct {
 	URL      string             `yaml:"url"`
 	Packages map[string]Package `yaml:"packages"`
+	Godoc    struct {
+		Host string `yaml:"host"`
+	} `yaml:"godoc"`
 }
 
 // Package details the options available for each repo
@@ -59,5 +65,15 @@ func Parse(path string) (*Config, error) {
 		return nil, fmt.Errorf("packages in %s must be alphabetically ordered", path)
 	}
 
+	if c.Godoc.Host == "" {
+		c.Godoc.Host = _defaultGodocServer
+	} else {
+		host := c.Godoc.Host
+		host = strings.TrimPrefix(host, "https://")
+		host = strings.TrimPrefix(host, "http://")
+		host = strings.TrimSuffix(host, "/")
+		c.Godoc.Host = host
+	}
+
 	return &c, err
 }