Migrate to govendor to avoid limitations of godep

- over the course of a project history every maintainer needs to update
  its dependency packages, the problem essentially with godep is manipulating
  GOPATH - this manipulation leads to static objects created at different locations
  which end up conflicting with the overall functionality of golang.

  This also leads to broken builds. There is no easier way out of this other than
  asking developers to do 'godep restore' all the time. Which perhaps as a practice
  doesn't sound like a clean solution. On the other hand 'godep restore' has its own
  set of problems.

- govendor is a right tool but a stop gap tool until we wait for golangs official
  1.5 version which fixes this vendoring issue once and for all.

- govendor provides consistency in terms of how import paths should be handled unlike
  manipulation GOPATH.

  This has advantages
    - no more compiled objects being referenced in GOPATH and build time GOPATH
      manging which leads to conflicts.
    - proper import paths referencing the exact package a project is dependent on.

 govendor is simple and provides the minimal necessary tooling to achieve this.

 For now this is the right solution.

pkg/auth/auth_test.go

@@ -19,8 +19,8 @@ package auth_test
 import (
 	"testing"
 
+	. "github.com/minio/minio/internal/gopkg.in/check.v1"
 	"github.com/minio/minio/pkg/auth"
-	. "gopkg.in/check.v1"
 )
 
 func Test(t *testing.T) { TestingT(t) }

pkg/controller/client.go

@@ -20,7 +20,7 @@ import (
 	"encoding/json"
 	"net/http"
 
-	jsonrpc "github.com/gorilla/rpc/v2/json"
+	jsonrpc "github.com/minio/minio/internal/github.com/gorilla/rpc/v2/json"
 	"github.com/minio/minio/pkg/auth"
 	"github.com/minio/minio/pkg/probe"
 	"github.com/minio/minio/pkg/server/rpc"

pkg/controller/rpc.go

@@ -20,7 +20,7 @@ import (
 	"bytes"
 	"net/http"
 
-	"github.com/gorilla/rpc/v2/json"
+	"github.com/minio/minio/internal/github.com/gorilla/rpc/v2/json"
 	"github.com/minio/minio/pkg/probe"
 )
 

pkg/cpu/cpu_test.go

@@ -23,8 +23,8 @@ import (
 	"strings"
 	"testing"
 
+	. "github.com/minio/minio/internal/gopkg.in/check.v1"
 	"github.com/minio/minio/pkg/cpu"
-	. "gopkg.in/check.v1"
 )
 
 func Test(t *testing.T) { TestingT(t) }

pkg/crypto/md5/md5_test.go

@@ -5,8 +5,8 @@ import (
 	"encoding/hex"
 	"testing"
 
+	. "github.com/minio/minio/internal/gopkg.in/check.v1"
 	"github.com/minio/minio/pkg/crypto/md5"
-	. "gopkg.in/check.v1"
 )
 
 func Test(t *testing.T) { TestingT(t) }

pkg/donut/cache/data/data_test.go

@@ -19,7 +19,7 @@ package data
 import (
 	"testing"
 
-	. "gopkg.in/check.v1"
+	. "github.com/minio/minio/internal/gopkg.in/check.v1"
 )
 
 func Test(t *testing.T) { TestingT(t) }

pkg/donut/cache/metadata/metadata_test.go

@@ -19,7 +19,7 @@ package metadata
 import (
 	"testing"
 
-	. "gopkg.in/check.v1"
+	. "github.com/minio/minio/internal/gopkg.in/check.v1"
 )
 
 func Test(t *testing.T) { TestingT(t) }

pkg/donut/disk/disk_test.go

@@ -22,7 +22,7 @@ import (
 	"path/filepath"
 	"testing"
 
-	. "gopkg.in/check.v1"
+	. "github.com/minio/minio/internal/gopkg.in/check.v1"
 )
 
 func TestDisk(t *testing.T) { TestingT(t) }

pkg/donut/donut-v1_test.go

@@ -27,7 +27,7 @@ import (
 	"strconv"
 	"testing"
 
-	. "gopkg.in/check.v1"
+	. "github.com/minio/minio/internal/gopkg.in/check.v1"
 )
 
 func TestDonut(t *testing.T) { TestingT(t) }

pkg/donut/donut-v2_test.go

@@ -26,7 +26,7 @@ import (
 	"path/filepath"
 	"testing"
 
-	. "gopkg.in/check.v1"
+	. "github.com/minio/minio/internal/gopkg.in/check.v1"
 )
 
 func TestCache(t *testing.T) { TestingT(t) }

pkg/erasure/cauchy_test.go

@@ -20,7 +20,7 @@ import (
 	"bytes"
 	"testing"
 
-	. "gopkg.in/check.v1"
+	. "github.com/minio/minio/internal/gopkg.in/check.v1"
 )
 
 type MySuite struct{}

pkg/erasure/vandermonde_test.go

@@ -19,7 +19,7 @@ package erasure
 import (
 	"bytes"
 
-	. "gopkg.in/check.v1"
+	. "github.com/minio/minio/internal/gopkg.in/check.v1"
 )
 
 func corruptChunks(chunks [][]byte, errorIndex []int) [][]byte {

pkg/probe/probe.go

@@ -27,7 +27,7 @@ import (
 	"strings"
 	"sync"
 
-	"github.com/dustin/go-humanize"
+	"github.com/minio/minio/internal/github.com/dustin/go-humanize"
 )
 
 // GetSysInfo returns useful system statistics.

pkg/probe/probe_test.go

@@ -19,8 +19,8 @@ import (
 	"os"
 	"testing"
 
+	. "github.com/minio/minio/internal/gopkg.in/check.v1"
 	"github.com/minio/minio/pkg/probe"
-	. "gopkg.in/check.v1"
 )
 
 func Test(t *testing.T) { TestingT(t) }

pkg/quick/quick.go

@@ -28,7 +28,7 @@ import (
 	"strings"
 	"sync"
 
-	"github.com/fatih/structs"
+	"github.com/minio/minio/internal/github.com/fatih/structs"
 	"github.com/minio/minio/pkg/probe"
 )
 

pkg/quick/quick_test.go

@@ -22,7 +22,7 @@ import (
 	"os"
 	"testing"
 
-	. "gopkg.in/check.v1"
+	. "github.com/minio/minio/internal/gopkg.in/check.v1"
 )
 
 func Test(t *testing.T) { TestingT(t) }

pkg/server/api/bucket-handlers.go

@@ -19,7 +19,7 @@ package api
 import (
 	"net/http"
 
-	"github.com/gorilla/mux"
+	"github.com/minio/minio/internal/github.com/gorilla/mux"
 	"github.com/minio/minio/pkg/donut"
 	"github.com/minio/minio/pkg/probe"
 	"github.com/minio/minio/pkg/utils/log"

pkg/server/api/object-handlers.go

@@ -20,7 +20,7 @@ import (
 	"net/http"
 	"strconv"
 
-	"github.com/gorilla/mux"
+	"github.com/minio/minio/internal/github.com/gorilla/mux"
 	"github.com/minio/minio/pkg/donut"
 	"github.com/minio/minio/pkg/probe"
 	"github.com/minio/minio/pkg/utils/log"

pkg/server/api_donut_cache_test.go

@@ -28,9 +28,9 @@ import (
 	"net/http"
 	"net/http/httptest"
 
+	. "github.com/minio/minio/internal/gopkg.in/check.v1"
 	"github.com/minio/minio/pkg/donut"
 	"github.com/minio/minio/pkg/server/api"
-	. "gopkg.in/check.v1"
 )
 
 func TestAPIDonutCache(t *testing.T) { TestingT(t) }

pkg/server/api_donut_test.go

@@ -29,9 +29,9 @@ import (
 	"net/http"
 	"net/http/httptest"
 
+	. "github.com/minio/minio/internal/gopkg.in/check.v1"
 	"github.com/minio/minio/pkg/donut"
 	"github.com/minio/minio/pkg/server/api"
-	. "gopkg.in/check.v1"
 )
 
 func TestAPIDonut(t *testing.T) { TestingT(t) }

pkg/server/api_signature_v4_test.go

@@ -29,10 +29,10 @@ import (
 	"net/http"
 	"net/http/httptest"
 
+	. "github.com/minio/minio/internal/gopkg.in/check.v1"
 	"github.com/minio/minio/pkg/auth"
 	"github.com/minio/minio/pkg/donut"
 	"github.com/minio/minio/pkg/server/api"
-	. "gopkg.in/check.v1"
 )
 
 func TestAPISignatureV4(t *testing.T) { TestingT(t) }

pkg/server/minhttp/http.go

@@ -31,7 +31,7 @@ import (
 	"syscall"
 	"time"
 
-	"github.com/facebookgo/httpdown"
+	"github.com/minio/minio/internal/github.com/facebookgo/httpdown"
 	"github.com/minio/minio/pkg/probe"
 )
 

pkg/server/router.go

@@ -19,7 +19,7 @@ package server
 import (
 	"net/http"
 
-	router "github.com/gorilla/mux"
+	router "github.com/minio/minio/internal/github.com/gorilla/mux"
 	"github.com/minio/minio/pkg/server/api"
 	"github.com/minio/minio/pkg/server/rpc"
 )

pkg/server/rpc/server.go

@@ -19,8 +19,8 @@ package rpc
 import (
 	"net/http"
 
-	"github.com/gorilla/rpc/v2"
-	"github.com/gorilla/rpc/v2/json"
+	"github.com/minio/minio/internal/github.com/gorilla/rpc/v2"
+	"github.com/minio/minio/internal/github.com/gorilla/rpc/v2/json"
 )
 
 // Server rpc server container

pkg/server/rpc_test.go

@@ -21,10 +21,10 @@ import (
 	"net/http/httptest"
 	"testing"
 
-	jsonrpc "github.com/gorilla/rpc/v2/json"
+	jsonrpc "github.com/minio/minio/internal/github.com/gorilla/rpc/v2/json"
+	. "github.com/minio/minio/internal/gopkg.in/check.v1"
 	"github.com/minio/minio/pkg/controller"
 	"github.com/minio/minio/pkg/server/rpc"
-	. "gopkg.in/check.v1"
 )
 
 func TestRPC(t *testing.T) { TestingT(t) }

pkg/utils/atomic/atomic_test.go

@@ -22,7 +22,7 @@ import (
 	"path/filepath"
 	"testing"
 
-	. "gopkg.in/check.v1"
+	. "github.com/minio/minio/internal/gopkg.in/check.v1"
 )
 
 func Test(t *testing.T) { TestingT(t) }