Add homdir expansion for paths

Signed-off-by: Knut Ahlers <knut@ahlers.me>

main.go

@@ -2,12 +2,9 @@ package main
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"runtime"
 
-	yaml "gopkg.in/yaml.v2"
-
 	"github.com/Luzifer/rconfig"
 	homedir "github.com/mitchellh/go-homedir"
 	log "github.com/sirupsen/logrus"
@@ -55,12 +52,7 @@ func main() {
 		log.WithError(err).Fatal("Unable to create default config")
 	}
 
-	cfgFileRaw, err := ioutil.ReadFile(cfg.Config)
-	if err != nil {
-		log.WithError(err).Fatal("Unable to read config")
-	}
-
-	if err := yaml.Unmarshal(cfgFileRaw, cfgFile); err != nil {
+	if err := cfgFile.LoadFromPath(cfg.Config); err != nil {
 		log.WithError(err).Fatal("Unable to parse config file")
 	}
 

types.go

@@ -3,6 +3,11 @@ package main
 import (
 	"io/ioutil"
 	"net/http"
+	"os"
+
+	homedir "github.com/mitchellh/go-homedir"
+
+	yaml "gopkg.in/yaml.v2"
 )
 
 type pkgCfg struct {
@@ -20,6 +25,28 @@ type configFile struct {
 	PostCommands [][]string `yaml:"post_commands"`
 }
 
+func (c *configFile) LoadFromPath(filepath string) error {
+	r, err := os.Open(filepath)
+	if err != nil {
+		return err
+	}
+	defer r.Close()
+
+	if err := yaml.NewDecoder(r).Decode(cfgFile); err != nil {
+		return err
+	}
+
+	if c.Cwd, err = homedir.Expand(c.Cwd); err != nil {
+		return err
+	}
+
+	if c.GoPath, err = homedir.Expand(c.GoPath); err != nil {
+		return err
+	}
+
+	return nil
+}
+
 func (p *pkgCfg) Version() (string, error) {
 	if p.Ver != "" {
 		return p.Ver, nil