Update code.gitea.io/git (#3137)

vendor/code.gitea.io/git/repo.go

@@ -283,5 +283,5 @@ func GetLatestCommitTime(repoPath string) (time.Time, error) {
 		return time.Time{}, err
 	}
 	commitTime := strings.TrimSpace(stdout)
-	return time.Parse("Mon Jan 02 15:04:05 2006 -0700", commitTime)
+	return time.Parse(GitTimeLayout, commitTime)
 }

vendor/code.gitea.io/git/repo_commit.go

@@ -7,7 +7,6 @@ package git
 import (
 	"bytes"
 	"container/list"
-	"fmt"
 	"strconv"
 	"strings"
 )
@@ -272,71 +271,60 @@ func (repo *Repository) CommitsCountBetween(start, end string) (int64, error) {
 }
 
 // commitsBefore the limit is depth, not total number of returned commits.
-func (repo *Repository) commitsBefore(l *list.List, parent *list.Element, id SHA1, current, limit int) error {
-	// Reach the limit
-	if limit > 0 && current > limit {
-		return nil
-	}
-
-	commit, err := repo.getCommit(id)
-	if err != nil {
-		return fmt.Errorf("getCommit: %v", err)
-	}
-
-	var e *list.Element
-	if parent == nil {
-		e = l.PushBack(commit)
+func (repo *Repository) commitsBefore(id SHA1, limit int) (*list.List, error) {
+	cmd := NewCommand("log")
+	if limit > 0 {
+		cmd.AddArguments("-"+ strconv.Itoa(limit), prettyLogFormat, id.String())
 	} else {
-		var in = parent
-		for {
-			if in == nil {
-				break
-			} else if in.Value.(*Commit).ID.Equal(commit.ID) {
-				return nil
-			} else if in.Next() == nil {
-				break
-			}
-
-			if in.Value.(*Commit).Committer.When.Equal(commit.Committer.When) {
-				break
-			}
-
-			if in.Value.(*Commit).Committer.When.After(commit.Committer.When) &&
-				in.Next().Value.(*Commit).Committer.When.Before(commit.Committer.When) {
-				break
-			}
-
-			in = in.Next()
-		}
-
-		e = l.InsertAfter(commit, in)
+		cmd.AddArguments(prettyLogFormat, id.String())
 	}
 
-	pr := parent
-	if commit.ParentCount() > 1 {
-		pr = e
+	stdout, err := cmd.RunInDirBytes(repo.Path)
+	if err != nil {
+		return nil, err
 	}
 
-	for i := 0; i < commit.ParentCount(); i++ {
-		id, err := commit.ParentID(i)
+	formattedLog, err := repo.parsePrettyFormatLogToList(bytes.TrimSpace(stdout))
+	if err != nil {
+		return nil, err
+	}
+
+	commits := list.New()
+	for logEntry := formattedLog.Front(); logEntry != nil; logEntry = logEntry.Next() {
+		commit := logEntry.Value.(*Commit)
+		branches, err := repo.getBranches(commit, 2)
 		if err != nil {
-			return err
+			return nil, err
 		}
-		err = repo.commitsBefore(l, pr, id, current+1, limit)
-		if err != nil {
-			return err
+
+		if len(branches) > 1 {
+			break
 		}
+
+		commits.PushBack(commit)
 	}
 
-	return nil
+	return commits, nil
 }
 
 func (repo *Repository) getCommitsBefore(id SHA1) (*list.List, error) {
-	l := list.New()
-	return l, repo.commitsBefore(l, nil, id, 1, 0)
+	return repo.commitsBefore(id, 0)
 }
 
 func (repo *Repository) getCommitsBeforeLimit(id SHA1, num int) (*list.List, error) {
-	l := list.New()
-	return l, repo.commitsBefore(l, nil, id, 1, num)
+	return repo.commitsBefore(id, num)
+}
+
+func (repo *Repository) getBranches(commit *Commit, limit int) ([]string, error) {
+	stdout, err := NewCommand("for-each-ref", "--count="+ strconv.Itoa(limit), "--format=%(refname)", "--contains", commit.ID.String(), BranchPrefix).RunInDir(repo.Path)
+	if err != nil {
+		return nil, err
+	}
+
+	refs := strings.Split(stdout, "\n")
+	branches := make([]string, len(refs)-1)
+	for i, ref := range refs[:len(refs)-1] {
+		branches[i] = strings.TrimPrefix(ref, BranchPrefix)
+	}
+	return branches, nil
 }

vendor/code.gitea.io/git/signature.go

@@ -17,6 +17,11 @@ type Signature struct {
 	When  time.Time
 }
 
+const (
+	// GitTimeLayout is the (default) time layout used by git.
+	GitTimeLayout = "Mon Jan _2 15:04:05 2006 -0700"
+)
+
 // Helper to get a signature from the commit line, which looks like these:
 //     author Patrick Gundlach <gundlach@speedata.de> 1378823654 +0200
 //     author Patrick Gundlach <gundlach@speedata.de> Thu, 07 Apr 2005 22:13:13 +0200
@@ -40,7 +45,7 @@ func newSignatureFromCommitline(line []byte) (_ *Signature, err error) {
 			seconds, _ := strconv.ParseInt(timestring, 10, 64)
 			sig.When = time.Unix(seconds, 0)
 		} else {
-			sig.When, err = time.Parse("Mon Jan _2 15:04:05 2006 -0700", string(line[emailEnd+2:]))
+			sig.When, err = time.Parse(GitTimeLayout, string(line[emailEnd+2:]))
 			if err != nil {
 				return nil, err
 			}

vendor/code.gitea.io/git/tree_entry.go

@@ -5,10 +5,6 @@
 package git
 
 import (
-	"fmt"
-	"path"
-	"path/filepath"
-	"runtime"
 	"sort"
 	"strconv"
 	"strings"
@@ -162,113 +158,3 @@ func (tes Entries) Sort() {
 func (tes Entries) CustomSort(cmp func(s1, s2 string) bool) {
 	sort.Sort(customSortableEntries{cmp, tes})
 }
-
-type commitInfo struct {
-	entryName string
-	infos     []interface{}
-	err       error
-}
-
-// GetCommitsInfo takes advantages of concurrency to speed up getting information
-// of all commits that are corresponding to these entries. This method will automatically
-// choose the right number of goroutine (concurrency) to use related of the host CPU.
-func (tes Entries) GetCommitsInfo(commit *Commit, treePath string) ([][]interface{}, error) {
-	return tes.GetCommitsInfoWithCustomConcurrency(commit, treePath, 0)
-}
-
-// GetCommitsInfoWithCustomConcurrency takes advantages of concurrency to speed up getting information
-// of all commits that are corresponding to these entries. If the given maxConcurrency is negative or
-// equal to zero:  the right number of goroutine (concurrency) to use will be chosen related of the
-// host CPU.
-func (tes Entries) GetCommitsInfoWithCustomConcurrency(commit *Commit, treePath string, maxConcurrency int) ([][]interface{}, error) {
-	if len(tes) == 0 {
-		return nil, nil
-	}
-
-	if maxConcurrency <= 0 {
-		maxConcurrency = runtime.NumCPU()
-	}
-
-	// Length of taskChan determines how many goroutines (subprocesses) can run at the same time.
-	// The length of revChan should be same as taskChan so goroutines whoever finished job can
-	// exit as early as possible, only store data inside channel.
-	taskChan := make(chan bool, maxConcurrency)
-	revChan := make(chan commitInfo, maxConcurrency)
-	doneChan := make(chan error)
-
-	// Receive loop will exit when it collects same number of data pieces as tree entries.
-	// It notifies doneChan before exits or notify early with possible error.
-	infoMap := make(map[string][]interface{}, len(tes))
-	go func() {
-		i := 0
-		for info := range revChan {
-			if info.err != nil {
-				doneChan <- info.err
-				return
-			}
-
-			infoMap[info.entryName] = info.infos
-			i++
-			if i == len(tes) {
-				break
-			}
-		}
-		doneChan <- nil
-	}()
-
-	for i := range tes {
-		// When taskChan is idle (or has empty slots), put operation will not block.
-		// However when taskChan is full, code will block and wait any running goroutines to finish.
-		taskChan <- true
-
-		if tes[i].Type != ObjectCommit {
-			go func(i int) {
-				cinfo := commitInfo{entryName: tes[i].Name()}
-				c, err := commit.GetCommitByPath(filepath.Join(treePath, tes[i].Name()))
-				if err != nil {
-					cinfo.err = fmt.Errorf("GetCommitByPath (%s/%s): %v", treePath, tes[i].Name(), err)
-				} else {
-					cinfo.infos = []interface{}{tes[i], c}
-				}
-				revChan <- cinfo
-				<-taskChan // Clear one slot from taskChan to allow new goroutines to start.
-			}(i)
-			continue
-		}
-
-		// Handle submodule
-		go func(i int) {
-			cinfo := commitInfo{entryName: tes[i].Name()}
-			sm, err := commit.GetSubModule(path.Join(treePath, tes[i].Name()))
-			if err != nil && !IsErrNotExist(err) {
-				cinfo.err = fmt.Errorf("GetSubModule (%s/%s): %v", treePath, tes[i].Name(), err)
-				revChan <- cinfo
-				return
-			}
-
-			smURL := ""
-			if sm != nil {
-				smURL = sm.URL
-			}
-
-			c, err := commit.GetCommitByPath(filepath.Join(treePath, tes[i].Name()))
-			if err != nil {
-				cinfo.err = fmt.Errorf("GetCommitByPath (%s/%s): %v", treePath, tes[i].Name(), err)
-			} else {
-				cinfo.infos = []interface{}{tes[i], NewSubModuleFile(c, smURL, tes[i].ID.String())}
-			}
-			revChan <- cinfo
-			<-taskChan
-		}(i)
-	}
-
-	if err := <-doneChan; err != nil {
-		return nil, err
-	}
-
-	commitsInfo := make([][]interface{}, len(tes))
-	for i := 0; i < len(tes); i++ {
-		commitsInfo[i] = infoMap[tes[i].Name()]
-	}
-	return commitsInfo, nil
-}

vendor/github.com/davecgh/go-spew/LICENSE

@@ -1,8 +1,8 @@
 ISC License
 
-Copyright (c) 2012-2013 Dave Collins <dave@davec.name>
+Copyright (c) 2012-2016 Dave Collins <dave@davec.name>
 
-Permission to use, copy, modify, and distribute this software for any
+Permission to use, copy, modify, and/or distribute this software for any
 purpose with or without fee is hereby granted, provided that the above
 copyright notice and this permission notice appear in all copies.
 

vendor/github.com/davecgh/go-spew/spew/bypass.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2015 Dave Collins <dave@davec.name>
+// Copyright (c) 2015-2016 Dave Collins <dave@davec.name>
 //
 // Permission to use, copy, modify, and distribute this software for any
 // purpose with or without fee is hereby granted, provided that the above
@@ -41,9 +41,9 @@ var (
 	// after commit 82f48826c6c7 which changed the format again to mirror
 	// the original format.  Code in the init function updates these offsets
 	// as necessary.
-	offsetPtr    = uintptr(ptrSize)
+	offsetPtr    = ptrSize
 	offsetScalar = uintptr(0)
-	offsetFlag   = uintptr(ptrSize * 2)
+	offsetFlag   = ptrSize * 2
 
 	// flagKindWidth and flagKindShift indicate various bits that the
 	// reflect package uses internally to track kind information.
@@ -58,7 +58,7 @@ var (
 	// changed their positions.  Code in the init function updates these
 	// flags as necessary.
 	flagKindWidth = uintptr(5)
-	flagKindShift = uintptr(flagKindWidth - 1)
+	flagKindShift = flagKindWidth - 1
 	flagRO        = uintptr(1 << 0)
 	flagIndir     = uintptr(1 << 1)
 )

vendor/github.com/davecgh/go-spew/spew/bypasssafe.go

@@ -1,38 +0,0 @@
-// Copyright (c) 2015 Dave Collins <dave@davec.name>
-//
-// Permission to use, copy, modify, and distribute this software for any
-// purpose with or without fee is hereby granted, provided that the above
-// copyright notice and this permission notice appear in all copies.
-//
-// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-// NOTE: Due to the following build constraints, this file will only be compiled
-// when the code is running on Google App Engine, compiled by GopherJS, or
-// "-tags safe" is added to the go build command line.  The "disableunsafe"
-// tag is deprecated and thus should not be used.
-// +build js appengine safe disableunsafe
-
-package spew
-
-import "reflect"
-
-const (
-	// UnsafeDisabled is a build-time constant which specifies whether or
-	// not access to the unsafe package is available.
-	UnsafeDisabled = true
-)
-
-// unsafeReflectValue typically converts the passed reflect.Value into a one
-// that bypasses the typical safety restrictions preventing access to
-// unaddressable and unexported data.  However, doing this relies on access to
-// the unsafe package.  This is a stub version which simply returns the passed
-// reflect.Value when the unsafe package is not available.
-func unsafeReflectValue(v reflect.Value) reflect.Value {
-	return v
-}

vendor/github.com/davecgh/go-spew/spew/common.go

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013 Dave Collins <dave@davec.name>
+ * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -180,7 +180,7 @@ func printComplex(w io.Writer, c complex128, floatPrecision int) {
 	w.Write(closeParenBytes)
 }
 
-// printHexPtr outputs a uintptr formatted as hexidecimal with a leading '0x'
+// printHexPtr outputs a uintptr formatted as hexadecimal with a leading '0x'
 // prefix to Writer w.
 func printHexPtr(w io.Writer, p uintptr) {
 	// Null pointer.

vendor/github.com/davecgh/go-spew/spew/config.go

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013 Dave Collins <dave@davec.name>
+ * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -67,6 +67,15 @@ type ConfigState struct {
 	// Google App Engine or with the "safe" build tag specified.
 	DisablePointerMethods bool
 
+	// DisablePointerAddresses specifies whether to disable the printing of
+	// pointer addresses. This is useful when diffing data structures in tests.
+	DisablePointerAddresses bool
+
+	// DisableCapacities specifies whether to disable the printing of capacities
+	// for arrays, slices, maps and channels. This is useful when diffing
+	// data structures in tests.
+	DisableCapacities bool
+
 	// ContinueOnMethod specifies whether or not recursion should continue once
 	// a custom error or Stringer interface is invoked.  The default, false,
 	// means it will print the results of invoking the custom error or Stringer

vendor/github.com/davecgh/go-spew/spew/doc.go

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013 Dave Collins <dave@davec.name>
+ * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -91,6 +91,15 @@ The following configuration options are available:
 		which only accept pointer receivers from non-pointer variables.
 		Pointer method invocation is enabled by default.
 
+	* DisablePointerAddresses
+		DisablePointerAddresses specifies whether to disable the printing of
+		pointer addresses. This is useful when diffing data structures in tests.
+
+	* DisableCapacities
+		DisableCapacities specifies whether to disable the printing of
+		capacities for arrays, slices, maps and channels. This is useful when
+		diffing data structures in tests.
+
 	* ContinueOnMethod
 		Enables recursion into types after invoking error and Stringer interface
 		methods. Recursion after method invocation is disabled by default.

vendor/github.com/davecgh/go-spew/spew/dump.go

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013 Dave Collins <dave@davec.name>
+ * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -35,16 +35,16 @@ var (
 
 	// cCharRE is a regular expression that matches a cgo char.
 	// It is used to detect character arrays to hexdump them.
-	cCharRE = regexp.MustCompile("^.*\\._Ctype_char$")
+	cCharRE = regexp.MustCompile(`^.*\._Ctype_char$`)
 
 	// cUnsignedCharRE is a regular expression that matches a cgo unsigned
 	// char.  It is used to detect unsigned character arrays to hexdump
 	// them.
-	cUnsignedCharRE = regexp.MustCompile("^.*\\._Ctype_unsignedchar$")
+	cUnsignedCharRE = regexp.MustCompile(`^.*\._Ctype_unsignedchar$`)
 
 	// cUint8tCharRE is a regular expression that matches a cgo uint8_t.
 	// It is used to detect uint8_t arrays to hexdump them.
-	cUint8tCharRE = regexp.MustCompile("^.*\\._Ctype_uint8_t$")
+	cUint8tCharRE = regexp.MustCompile(`^.*\._Ctype_uint8_t$`)
 )
 
 // dumpState contains information about the state of a dump operation.
@@ -129,7 +129,7 @@ func (d *dumpState) dumpPtr(v reflect.Value) {
 	d.w.Write(closeParenBytes)
 
 	// Display pointer information.
-	if len(pointerChain) > 0 {
+	if !d.cs.DisablePointerAddresses && len(pointerChain) > 0 {
 		d.w.Write(openParenBytes)
 		for i, addr := range pointerChain {
 			if i > 0 {
@@ -143,10 +143,10 @@ func (d *dumpState) dumpPtr(v reflect.Value) {
 	// Display dereferenced value.
 	d.w.Write(openParenBytes)
 	switch {
-	case nilFound == true:
+	case nilFound:
 		d.w.Write(nilAngleBytes)
 
-	case cycleFound == true:
+	case cycleFound:
 		d.w.Write(circularBytes)
 
 	default:
@@ -282,13 +282,13 @@ func (d *dumpState) dump(v reflect.Value) {
 	case reflect.Map, reflect.String:
 		valueLen = v.Len()
 	}
-	if valueLen != 0 || valueCap != 0 {
+	if valueLen != 0 || !d.cs.DisableCapacities && valueCap != 0 {
 		d.w.Write(openParenBytes)
 		if valueLen != 0 {
 			d.w.Write(lenEqualsBytes)
 			printInt(d.w, int64(valueLen), 10)
 		}
-		if valueCap != 0 {
+		if !d.cs.DisableCapacities && valueCap != 0 {
 			if valueLen != 0 {
 				d.w.Write(spaceBytes)
 			}

vendor/github.com/davecgh/go-spew/spew/format.go

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013 Dave Collins <dave@davec.name>
+ * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -182,10 +182,10 @@ func (f *formatState) formatPtr(v reflect.Value) {
 
 	// Display dereferenced value.
 	switch {
-	case nilFound == true:
+	case nilFound:
 		f.fs.Write(nilAngleBytes)
 
-	case cycleFound == true:
+	case cycleFound:
 		f.fs.Write(circularShortBytes)
 
 	default:

vendor/github.com/davecgh/go-spew/spew/spew.go

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013 Dave Collins <dave@davec.name>
+ * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above

vendor/github.com/mcuadros/go-version/README.md

@@ -1,4 +1,4 @@
-go-version [![Build Status](https://travis-ci.org/mcuadros/go-version.png?branch=master)](https://travis-ci.org/mcuadros/go-version) [![GoDoc](https://godoc.org/github.com/mcuadros/go-version?status.png)](http://godoc.org/github.com/mcuadros/go-version)
+go-version [![Build Status](https://travis-ci.org/mcuadros/go-version.svg?branch=master)](https://travis-ci.org/mcuadros/go-version) [![GoDoc](https://godoc.org/github.com/mcuadros/go-version?status.svg)](http://godoc.org/github.com/mcuadros/go-version)
 ==============================
 
 Version normalizer and comparison library for go, heavy based on PHP version_compare function and Version comparsion libs from [Composer](https://github.com/composer/composer) PHP project
@@ -78,5 +78,3 @@ License
 -------
 
 MIT, see [LICENSE](LICENSE)
-
-[![Bitdeli Badge](https://d2weczhvl823v0.cloudfront.net/mcuadros/go-version/trend.png)](https://bitdeli.com/free "Bitdeli Badge")

vendor/github.com/mcuadros/go-version/compare.go

@@ -23,6 +23,8 @@ var specialForms = map[string]int{
 	"pl":    1,
 }
 
+var unknownForm int = -7
+
 // Compares two version number strings, for a particular relationship
 //
 // Usage
@@ -155,5 +157,15 @@ func numVersion(value string) int {
 		return special
 	}
 
-	return -7
+	return unknownForm
+}
+
+func ValidSimpleVersionFormat(value string) bool {
+	normalized := Normalize(value)
+	for _, component := range prepVersion(normalized) {
+		if numVersion(component) == unknownForm {
+			return false
+		}
+	}
+	return true
 }

vendor/github.com/pmezard/go-difflib/difflib/difflib.go

@@ -559,10 +559,14 @@ type UnifiedDiff struct {
 func WriteUnifiedDiff(writer io.Writer, diff UnifiedDiff) error {
 	buf := bufio.NewWriter(writer)
 	defer buf.Flush()
-	w := func(format string, args ...interface{}) error {
+	wf := func(format string, args ...interface{}) error {
 		_, err := buf.WriteString(fmt.Sprintf(format, args...))
 		return err
 	}
+	ws := func(s string) error {
+		_, err := buf.WriteString(s)
+		return err
+	}
 
 	if len(diff.Eol) == 0 {
 		diff.Eol = "\n"
@@ -581,26 +585,28 @@ func WriteUnifiedDiff(writer io.Writer, diff UnifiedDiff) error {
 			if len(diff.ToDate) > 0 {
 				toDate = "\t" + diff.ToDate
 			}
-			err := w("--- %s%s%s", diff.FromFile, fromDate, diff.Eol)
-			if err != nil {
-				return err
-			}
-			err = w("+++ %s%s%s", diff.ToFile, toDate, diff.Eol)
-			if err != nil {
-				return err
+			if diff.FromFile != "" || diff.ToFile != "" {
+				err := wf("--- %s%s%s", diff.FromFile, fromDate, diff.Eol)
+				if err != nil {
+					return err
+				}
+				err = wf("+++ %s%s%s", diff.ToFile, toDate, diff.Eol)
+				if err != nil {
+					return err
+				}
 			}
 		}
 		first, last := g[0], g[len(g)-1]
 		range1 := formatRangeUnified(first.I1, last.I2)
 		range2 := formatRangeUnified(first.J1, last.J2)
-		if err := w("@@ -%s +%s @@%s", range1, range2, diff.Eol); err != nil {
+		if err := wf("@@ -%s +%s @@%s", range1, range2, diff.Eol); err != nil {
 			return err
 		}
 		for _, c := range g {
 			i1, i2, j1, j2 := c.I1, c.I2, c.J1, c.J2
 			if c.Tag == 'e' {
 				for _, line := range diff.A[i1:i2] {
-					if err := w(" " + line); err != nil {
+					if err := ws(" " + line); err != nil {
 						return err
 					}
 				}
@@ -608,14 +614,14 @@ func WriteUnifiedDiff(writer io.Writer, diff UnifiedDiff) error {
 			}
 			if c.Tag == 'r' || c.Tag == 'd' {
 				for _, line := range diff.A[i1:i2] {
-					if err := w("-" + line); err != nil {
+					if err := ws("-" + line); err != nil {
 						return err
 					}
 				}
 			}
 			if c.Tag == 'r' || c.Tag == 'i' {
 				for _, line := range diff.B[j1:j2] {
-					if err := w("+" + line); err != nil {
+					if err := ws("+" + line); err != nil {
 						return err
 					}
 				}
@@ -669,12 +675,18 @@ func WriteContextDiff(writer io.Writer, diff ContextDiff) error {
 	buf := bufio.NewWriter(writer)
 	defer buf.Flush()
 	var diffErr error
-	w := func(format string, args ...interface{}) {
+	wf := func(format string, args ...interface{}) {
 		_, err := buf.WriteString(fmt.Sprintf(format, args...))
 		if diffErr == nil && err != nil {
 			diffErr = err
 		}
 	}
+	ws := func(s string) {
+		_, err := buf.WriteString(s)
+		if diffErr == nil && err != nil {
+			diffErr = err
+		}
+	}
 
 	if len(diff.Eol) == 0 {
 		diff.Eol = "\n"
@@ -700,15 +712,17 @@ func WriteContextDiff(writer io.Writer, diff ContextDiff) error {
 			if len(diff.ToDate) > 0 {
 				toDate = "\t" + diff.ToDate
 			}
-			w("*** %s%s%s", diff.FromFile, fromDate, diff.Eol)
-			w("--- %s%s%s", diff.ToFile, toDate, diff.Eol)
+			if diff.FromFile != "" || diff.ToFile != "" {
+				wf("*** %s%s%s", diff.FromFile, fromDate, diff.Eol)
+				wf("--- %s%s%s", diff.ToFile, toDate, diff.Eol)
+			}
 		}
 
 		first, last := g[0], g[len(g)-1]
-		w("***************" + diff.Eol)
+		ws("***************" + diff.Eol)
 
 		range1 := formatRangeContext(first.I1, last.I2)
-		w("*** %s ****%s", range1, diff.Eol)
+		wf("*** %s ****%s", range1, diff.Eol)
 		for _, c := range g {
 			if c.Tag == 'r' || c.Tag == 'd' {
 				for _, cc := range g {
@@ -716,7 +730,7 @@ func WriteContextDiff(writer io.Writer, diff ContextDiff) error {
 						continue
 					}
 					for _, line := range diff.A[cc.I1:cc.I2] {
-						w(prefix[cc.Tag] + line)
+						ws(prefix[cc.Tag] + line)
 					}
 				}
 				break
@@ -724,7 +738,7 @@ func WriteContextDiff(writer io.Writer, diff ContextDiff) error {
 		}
 
 		range2 := formatRangeContext(first.J1, last.J2)
-		w("--- %s ----%s", range2, diff.Eol)
+		wf("--- %s ----%s", range2, diff.Eol)
 		for _, c := range g {
 			if c.Tag == 'r' || c.Tag == 'i' {
 				for _, cc := range g {
@@ -732,7 +746,7 @@ func WriteContextDiff(writer io.Writer, diff ContextDiff) error {
 						continue
 					}
 					for _, line := range diff.B[cc.J1:cc.J2] {
-						w(prefix[cc.Tag] + line)
+						ws(prefix[cc.Tag] + line)
 					}
 				}
 				break

vendor/github.com/stretchr/testify/assert/assertion_format.go.tmpl

@@ -0,0 +1,4 @@
+{{.CommentFormat}}
+func {{.DocInfo.Name}}f(t TestingT, {{.ParamsFormat}}) bool {
+	return {{.DocInfo.Name}}(t, {{.ForwardedParamsFormat}})
+}

vendor/github.com/stretchr/testify/assert/forward_assertions.go

@@ -13,4 +13,4 @@ func New(t TestingT) *Assertions {
 	}
 }
 
-//go:generate go run ../_codegen/main.go -output-package=assert -template=assertion_forward.go.tmpl
+//go:generate go run ../_codegen/main.go -output-package=assert -template=assertion_forward.go.tmpl -include-format-funcs

vendor/github.com/stretchr/testify/assert/http_assertions.go

@@ -8,16 +8,16 @@ import (
 	"strings"
 )
 
-// httpCode is a helper that returns HTTP code of the response. It returns -1
-// if building a new request fails.
-func httpCode(handler http.HandlerFunc, method, url string, values url.Values) int {
+// httpCode is a helper that returns HTTP code of the response. It returns -1 and
+// an error if building a new request fails.
+func httpCode(handler http.HandlerFunc, method, url string, values url.Values) (int, error) {
 	w := httptest.NewRecorder()
 	req, err := http.NewRequest(method, url+"?"+values.Encode(), nil)
 	if err != nil {
-		return -1
+		return -1, err
 	}
 	handler(w, req)
-	return w.Code
+	return w.Code, nil
 }
 
 // HTTPSuccess asserts that a specified handler returns a success status code.
@@ -26,11 +26,18 @@ func httpCode(handler http.HandlerFunc, method, url string, values url.Values) i
 //
 // Returns whether the assertion was successful (true) or not (false).
 func HTTPSuccess(t TestingT, handler http.HandlerFunc, method, url string, values url.Values) bool {
-	code := httpCode(handler, method, url, values)
-	if code == -1 {
+	code, err := httpCode(handler, method, url, values)
+	if err != nil {
+		Fail(t, fmt.Sprintf("Failed to build test request, got error: %s", err))
 		return false
 	}
-	return code >= http.StatusOK && code <= http.StatusPartialContent
+
+	isSuccessCode := code >= http.StatusOK && code <= http.StatusPartialContent
+	if !isSuccessCode {
+		Fail(t, fmt.Sprintf("Expected HTTP success status code for %q but received %d", url+"?"+values.Encode(), code))
+	}
+
+	return isSuccessCode
 }
 
 // HTTPRedirect asserts that a specified handler returns a redirect status code.
@@ -39,11 +46,18 @@ func HTTPSuccess(t TestingT, handler http.HandlerFunc, method, url string, value
 //
 // Returns whether the assertion was successful (true) or not (false).
 func HTTPRedirect(t TestingT, handler http.HandlerFunc, method, url string, values url.Values) bool {
-	code := httpCode(handler, method, url, values)
-	if code == -1 {
+	code, err := httpCode(handler, method, url, values)
+	if err != nil {
+		Fail(t, fmt.Sprintf("Failed to build test request, got error: %s", err))
 		return false
 	}
-	return code >= http.StatusMultipleChoices && code <= http.StatusTemporaryRedirect
+
+	isRedirectCode := code >= http.StatusMultipleChoices && code <= http.StatusTemporaryRedirect
+	if !isRedirectCode {
+		Fail(t, fmt.Sprintf("Expected HTTP redirect status code for %q but received %d", url+"?"+values.Encode(), code))
+	}
+
+	return isRedirectCode
 }
 
 // HTTPError asserts that a specified handler returns an error status code.
@@ -52,11 +66,18 @@ func HTTPRedirect(t TestingT, handler http.HandlerFunc, method, url string, valu
 //
 // Returns whether the assertion was successful (true) or not (false).
 func HTTPError(t TestingT, handler http.HandlerFunc, method, url string, values url.Values) bool {
-	code := httpCode(handler, method, url, values)
-	if code == -1 {
+	code, err := httpCode(handler, method, url, values)
+	if err != nil {
+		Fail(t, fmt.Sprintf("Failed to build test request, got error: %s", err))
 		return false
 	}
-	return code >= http.StatusBadRequest
+
+	isErrorCode := code >= http.StatusBadRequest
+	if !isErrorCode {
+		Fail(t, fmt.Sprintf("Expected HTTP error status code for %q but received %d", url+"?"+values.Encode(), code))
+	}
+
+	return isErrorCode
 }
 
 // HTTPBody is a helper that returns HTTP body of the response. It returns

vendor/github.com/stretchr/testify/require/doc.go

@@ -0,0 +1,28 @@
+// Package require implements the same assertions as the `assert` package but
+// stops test execution when a test fails.
+//
+// Example Usage
+//
+// The following is a complete example using require in a standard test function:
+//    import (
+//      "testing"
+//      "github.com/stretchr/testify/require"
+//    )
+//
+//    func TestSomething(t *testing.T) {
+//
+//      var a string = "Hello"
+//      var b string = "Hello"
+//
+//      require.Equal(t, a, b, "The two words should be the same.")
+//
+//    }
+//
+// Assertions
+//
+// The `require` package have same global functions as in the `assert` package,
+// but instead of returning a boolean result they call `t.FailNow()`.
+//
+// Every assertion function also takes an optional string message as the final argument,
+// allowing custom error messages to be appended to the message the assertion method outputs.
+package require

vendor/github.com/stretchr/testify/require/forward_requirements.go

@@ -0,0 +1,16 @@
+package require
+
+// Assertions provides assertion methods around the
+// TestingT interface.
+type Assertions struct {
+	t TestingT
+}
+
+// New makes a new Assertions object for the specified TestingT.
+func New(t TestingT) *Assertions {
+	return &Assertions{
+		t: t,
+	}
+}
+
+//go:generate go run ../_codegen/main.go -output-package=require -template=require_forward.go.tmpl -include-format-funcs

vendor/github.com/stretchr/testify/require/require.go.tmpl

@@ -0,0 +1,6 @@
+{{.Comment}}
+func {{.DocInfo.Name}}(t TestingT, {{.Params}}) {
+	if !assert.{{.DocInfo.Name}}(t, {{.ForwardedParams}}) {
+		t.FailNow()
+	}
+}

vendor/github.com/stretchr/testify/require/require_forward.go.tmpl

@@ -0,0 +1,4 @@
+{{.CommentWithoutT "a"}}
+func (a *Assertions) {{.DocInfo.Name}}({{.Params}}) {
+	{{.DocInfo.Name}}(a.t, {{.ForwardedParams}})
+}

vendor/github.com/stretchr/testify/require/requirements.go

@@ -0,0 +1,9 @@
+package require
+
+// TestingT is an interface wrapper around *testing.T
+type TestingT interface {
+	Errorf(format string, args ...interface{})
+	FailNow()
+}
+
+//go:generate go run ../_codegen/main.go -output-package=require -template=require.go.tmpl -include-format-funcs