3 files changed, 22 insertions, 86 deletions

diff --git a/storage/filesystem/config.go b/storage/filesystem/config.go
index dbdce54..01b35b4 100644
--- a/storage/filesystem/config.go
+++ b/storage/filesystem/config.go
@@ -5,7 +5,6 @@ import (
 	"os"
 
 	"github.com/go-git/go-git/v5/config"
-	format "github.com/go-git/go-git/v5/plumbing/format/config"
 	"github.com/go-git/go-git/v5/storage/filesystem/dotgit"
 	"github.com/go-git/go-git/v5/utils/ioutil"
 )
@@ -14,11 +13,10 @@ type ConfigStorage struct {
 	dir *dotgit.DotGit
 }
 
-func (c *ConfigStorage) Config() (*config.Config, error) {
+func (c *ConfigStorage) Config() (conf *config.Config, err error) {
 	cfg := config.NewConfig()
 
-	// local config (./.git/config)
-	f, err := c.dir.LocalConfig()
+	f, err := c.dir.Config()
 	if err != nil {
 		if os.IsNotExist(err) {
 			return cfg, nil
@@ -31,55 +29,13 @@ func (c *ConfigStorage) Config() (*config.Config, error) {
 
 	b, err := stdioutil.ReadAll(f)
 	if err != nil {
-		return cfg, err
-	}
-
-	if err = cfg.UnmarshalScoped(format.LocalScope, b); err != nil {
-		return cfg, err
-	}
-
-	// global config (~/.gitconfig)
-	f, err = c.dir.GlobalConfig()
-	if err != nil {
-		if os.IsNotExist(err) {
-			return cfg, nil
-		}
-
 		return nil, err
 	}
 
-	defer ioutil.CheckClose(f, &err)
-
-	b, err = stdioutil.ReadAll(f)
-	if err != nil {
-		return cfg, err
-	}
-
-	if err = cfg.UnmarshalScoped(format.GlobalScope, b); err != nil {
-		return cfg, err
-	}
-
-	// system config (/etc/gitconfig)
-	f, err = c.dir.SystemConfig()
-	if err != nil {
-		if os.IsNotExist(err) {
-			return cfg, nil
-		}
-
+	if err = cfg.Unmarshal(b); err != nil {
 		return nil, err
 	}
 
-	defer ioutil.CheckClose(f, &err)
-
-	b, err = stdioutil.ReadAll(f)
-	if err != nil {
-		return cfg, err
-	}
-
-	if err = cfg.UnmarshalScoped(format.SystemScope, b); err != nil {
-		return cfg, err
-	}
-
 	return cfg, err
 }
 
@@ -88,7 +44,7 @@ func (c *ConfigStorage) SetConfig(cfg *config.Config) (err error) {
 		return err
 	}
 
-	f, err := c.dir.LocalConfigWriter()
+	f, err := c.dir.ConfigWriter()
 	if err != nil {
 		return err
 	}
diff --git a/storage/filesystem/dotgit/dotgit.go b/storage/filesystem/dotgit/dotgit.go
index 8c3896b..83c7683 100644
--- a/storage/filesystem/dotgit/dotgit.go
+++ b/storage/filesystem/dotgit/dotgit.go
@@ -21,17 +21,15 @@ import (
 )
 
 const (
-	suffix           = ".git"
-	packedRefsPath   = "packed-refs"
-	localConfigPath  = "config"
-	globalConfigPath = ".gitconfig"
-	systemConfigPath = "/etc/gitconfig"
-	indexPath        = "index"
-	shallowPath      = "shallow"
-	modulePath       = "modules"
-	objectsPath      = "objects"
-	packPath         = "pack"
-	refsPath         = "refs"
+	suffix         = ".git"
+	packedRefsPath = "packed-refs"
+	configPath     = "config"
+	indexPath      = "index"
+	shallowPath    = "shallow"
+	modulePath     = "modules"
+	objectsPath    = "objects"
+	packPath       = "pack"
+	refsPath       = "refs"
 
 	tmpPackedRefsPrefix = "._packed-refs"
 
@@ -157,32 +155,14 @@ func (d *DotGit) Close() error {
 	return nil
 }
 
-// LocalConfigWriter returns a file pointer for write to the local config file
-func (d *DotGit) LocalConfigWriter() (billy.File, error) {
-	return d.fs.Create(localConfigPath)
+// ConfigWriter returns a file pointer for write to the config file
+func (d *DotGit) ConfigWriter() (billy.File, error) {
+	return d.fs.Create(configPath)
 }
 
-// LocalConfig returns a file pointer for read to the local config file
-func (d *DotGit) LocalConfig() (billy.File, error) {
-	return d.fs.Open(localConfigPath)
-}
-
-// GlobalConfigWriter returns a file pointer for write to the global config file
-func (d *DotGit) GlobalConfigWriter() (billy.File, error) {
-	return osfs.New(os.Getenv("HOME")).Create(globalConfigPath)
-}
-
-// GlobalConfig returns a file pointer for read to the global config file
-func (d *DotGit) GlobalConfig() (billy.File, error) {
-	return osfs.New(os.Getenv("HOME")).Open(globalConfigPath)
-}
-
-// SystemConfigWriter doesn't exist because we typically do not have permission
-// to write to files in /etc.
-
-// SystemConfig returns a file pointer for read to the system config file
-func (d *DotGit) SystemConfig() (billy.File, error) {
-	return osfs.New("/").Open(systemConfigPath)
+// Config returns a file pointer for read to the config file
+func (d *DotGit) Config() (billy.File, error) {
+	return d.fs.Open(configPath)
 }
 
 // IndexWriter returns a file pointer for write to the index file
diff --git a/storage/filesystem/dotgit/dotgit_test.go b/storage/filesystem/dotgit/dotgit_test.go
index 519f601..0a72aa6 100644
--- a/storage/filesystem/dotgit/dotgit_test.go
+++ b/storage/filesystem/dotgit/dotgit_test.go
@@ -344,7 +344,7 @@ func (s *SuiteDotGit) TestConfig(c *C) {
 	fs := fixtures.Basic().ByTag(".git").One().DotGit()
 	dir := New(fs)
 
-	file, err := dir.LocalConfig()
+	file, err := dir.Config()
 	c.Assert(err, IsNil)
 	c.Assert(filepath.Base(file.Name()), Equals, "config")
 }
@@ -357,13 +357,13 @@ func (s *SuiteDotGit) TestConfigWriteAndConfig(c *C) {
 	fs := osfs.New(tmp)
 	dir := New(fs)
 
-	f, err := dir.LocalConfigWriter()
+	f, err := dir.ConfigWriter()
 	c.Assert(err, IsNil)
 
 	_, err = f.Write([]byte("foo"))
 	c.Assert(err, IsNil)
 
-	f, err = dir.LocalConfig()
+	f, err = dir.Config()
 	c.Assert(err, IsNil)
 
 	cnt, err := ioutil.ReadAll(f)