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Merge pull request #2335 from andreynering/highlight-diff 

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This commit is contained in:
Unknwon 2016-01-09 13:39:18 +08:00
parent 4331d1d2a0 697b0e2aba
commit bcf6aed452
6 changed files with 192 additions and 14 deletions
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102
models/git_diff.go
View File

@ -13,10 +13,13 @@ import (
"os"
"os/exec"
"strings"
"html/template"
"html"
"github.com/Unknwon/com"
"golang.org/x/net/html/charset"
"golang.org/x/text/transform"
"github.com/sergi/go-diff/diffmatchpatch"
"github.com/gogits/git-module"
@ -25,16 +28,19 @@ import (
"github.com/gogits/gogs/modules/process"
)
// Diff line types.
type DiffLineType uint8
const (
DIFF_LINE_PLAIN = iota + 1
DIFF_LINE_PLAIN DiffLineType = iota + 1
DIFF_LINE_ADD
DIFF_LINE_DEL
DIFF_LINE_SECTION
)
type DiffFileType uint8
const (
DIFF_FILE_ADD = iota + 1
DIFF_FILE_ADD DiffFileType = iota + 1
DIFF_FILE_CHANGE
DIFF_FILE_DEL
DIFF_FILE_RENAME
@ -43,12 +49,13 @@ const (
type DiffLine struct {
LeftIdx int
RightIdx int
Type int
Type DiffLineType
Content string
ParsedContent template.HTML
}
func (d DiffLine) GetType() int {
return d.Type
func (d *DiffLine) GetType() int {
return int(d.Type)
}
type DiffSection struct {
@ -56,12 +63,89 @@ type DiffSection struct {
Lines []*DiffLine
}
func diffToHtml(diffRecord []diffmatchpatch.Diff, lineType DiffLineType) template.HTML {
result := ""
for _, s := range diffRecord {
if s.Type == diffmatchpatch.DiffInsert && lineType == DIFF_LINE_ADD {
result = result + "<span class=\"added-code\">"+html.EscapeString(s.Text)+"</span>"
} else if s.Type == diffmatchpatch.DiffDelete && lineType == DIFF_LINE_DEL {
result = result + "<span class=\"removed-code\">"+html.EscapeString(s.Text)+"</span>"
} else if s.Type == diffmatchpatch.DiffEqual {
result = result + html.EscapeString(s.Text)
}
}
return template.HTML(result)
}
// get an specific line by type (add or del) and file line number
func (diffSection *DiffSection) GetLine(lineType DiffLineType, idx int) *DiffLine {
difference := 0
for _, diffLine := range diffSection.Lines {
if diffLine.Type == DIFF_LINE_PLAIN {
// get the difference of line numbers between ADD and DEL versions
difference = diffLine.RightIdx - diffLine.LeftIdx
continue
}
if lineType == DIFF_LINE_DEL {
if diffLine.RightIdx == 0 && diffLine.LeftIdx == idx - difference {
return diffLine
}
} else if lineType == DIFF_LINE_ADD {
if diffLine.LeftIdx == 0 && diffLine.RightIdx == idx + difference {
return diffLine
}
}
}
return nil
}
// computes diff of each diff line and set the HTML on diffLine.ParsedContent
func (diffSection *DiffSection) ComputeLinesDiff() {
for _, diffLine := range diffSection.Lines {
var compareDiffLine *DiffLine
var diff1, diff2 string
// default content: as is
diffLine.ParsedContent = template.HTML(html.EscapeString(diffLine.Content[1:]))
// just compute diff for adds and removes
if diffLine.Type != DIFF_LINE_ADD && diffLine.Type != DIFF_LINE_DEL {
continue
}
// try to find equivalent diff line. ignore, otherwise
if diffLine.Type == DIFF_LINE_ADD {
compareDiffLine = diffSection.GetLine(DIFF_LINE_DEL, diffLine.RightIdx)
if compareDiffLine == nil {
continue
}
diff1 = compareDiffLine.Content
diff2 = diffLine.Content
} else {
compareDiffLine = diffSection.GetLine(DIFF_LINE_ADD, diffLine.LeftIdx)
if compareDiffLine == nil {
continue
}
diff1 = diffLine.Content
diff2 = compareDiffLine.Content
}
dmp := diffmatchpatch.New()
diffRecord := dmp.DiffMain(diff1[1:], diff2[1:], true)
diffRecord = dmp.DiffCleanupSemantic(diffRecord)
diffLine.ParsedContent = diffToHtml(diffRecord, diffLine.Type)
}
}
type DiffFile struct {
Name string
OldName string
Index int
Addition, Deletion int
Type int
Type DiffFileType
IsCreated bool
IsDeleted bool
IsBin bool
@ -69,6 +153,10 @@ type DiffFile struct {
Sections []*DiffSection
}
func (diffFile *DiffFile) GetType() int {
return int(diffFile.Type)
}
type Diff struct {
TotalAddition, TotalDeletion int
Files []*DiffFile

70
models/git_diff_test.go Normal file
View File

@ -0,0 +1,70 @@
package models
import (
dmp "github.com/sergi/go-diff/diffmatchpatch"
"html/template"
"testing"
)
func assertEqual(t *testing.T, s1 string, s2 template.HTML) {
if s1 != string(s2) {
t.Errorf("%s should be equal %s", s2, s1)
}
}
func assertLineEqual(t *testing.T, d1 *DiffLine, d2 *DiffLine) {
if d1 != d2 {
t.Errorf("%v should be equal %v", d1, d2)
}
}
func TestDiffToHtml(t *testing.T) {
assertEqual(t, "foo <span class=\"added-code\">bar</span> biz", diffToHtml([]dmp.Diff{
dmp.Diff{dmp.DiffEqual, "foo "},
dmp.Diff{dmp.DiffInsert, "bar"},
dmp.Diff{dmp.DiffDelete, " baz"},
dmp.Diff{dmp.DiffEqual, " biz"},
}, DIFF_LINE_ADD))
assertEqual(t, "foo <span class=\"removed-code\">bar</span> biz", diffToHtml([]dmp.Diff{
dmp.Diff{dmp.DiffEqual, "foo "},
dmp.Diff{dmp.DiffDelete, "bar"},
dmp.Diff{dmp.DiffInsert, " baz"},
dmp.Diff{dmp.DiffEqual, " biz"},
}, DIFF_LINE_DEL))
}
// test if GetLine is return the correct lines
func TestGetLine(t *testing.T) {
ds := DiffSection{Lines: []*DiffLine{
&DiffLine{LeftIdx: 28, RightIdx: 28, Type: DIFF_LINE_PLAIN},
&DiffLine{LeftIdx: 29, RightIdx: 29, Type: DIFF_LINE_PLAIN},
&DiffLine{LeftIdx: 30, RightIdx: 30, Type: DIFF_LINE_PLAIN},
&DiffLine{LeftIdx: 31, RightIdx: 0, Type: DIFF_LINE_DEL},
&DiffLine{LeftIdx: 0, RightIdx: 31, Type: DIFF_LINE_ADD},
&DiffLine{LeftIdx: 0, RightIdx: 32, Type: DIFF_LINE_ADD},
&DiffLine{LeftIdx: 32, RightIdx: 33, Type: DIFF_LINE_PLAIN},
&DiffLine{LeftIdx: 33, RightIdx: 0, Type: DIFF_LINE_DEL},
&DiffLine{LeftIdx: 34, RightIdx: 0, Type: DIFF_LINE_DEL},
&DiffLine{LeftIdx: 35, RightIdx: 0, Type: DIFF_LINE_DEL},
&DiffLine{LeftIdx: 36, RightIdx: 0, Type: DIFF_LINE_DEL},
&DiffLine{LeftIdx: 0, RightIdx: 34, Type: DIFF_LINE_ADD},
&DiffLine{LeftIdx: 0, RightIdx: 35, Type: DIFF_LINE_ADD},
&DiffLine{LeftIdx: 0, RightIdx: 36, Type: DIFF_LINE_ADD},
&DiffLine{LeftIdx: 0, RightIdx: 37, Type: DIFF_LINE_ADD},
&DiffLine{LeftIdx: 37, RightIdx: 38, Type: DIFF_LINE_PLAIN},
&DiffLine{LeftIdx: 38, RightIdx: 39, Type: DIFF_LINE_PLAIN},
}}
assertLineEqual(t, ds.GetLine(DIFF_LINE_ADD, 31), ds.Lines[4])
assertLineEqual(t, ds.GetLine(DIFF_LINE_DEL, 31), ds.Lines[3])
assertLineEqual(t, ds.GetLine(DIFF_LINE_ADD, 33), ds.Lines[11])
assertLineEqual(t, ds.GetLine(DIFF_LINE_ADD, 34), ds.Lines[12])
assertLineEqual(t, ds.GetLine(DIFF_LINE_ADD, 35), ds.Lines[13])
assertLineEqual(t, ds.GetLine(DIFF_LINE_ADD, 36), ds.Lines[14])
assertLineEqual(t, ds.GetLine(DIFF_LINE_DEL, 34), ds.Lines[7])
assertLineEqual(t, ds.GetLine(DIFF_LINE_DEL, 35), ds.Lines[8])
assertLineEqual(t, ds.GetLine(DIFF_LINE_DEL, 36), ds.Lines[9])
assertLineEqual(t, ds.GetLine(DIFF_LINE_DEL, 37), ds.Lines[10])
}

6
public/css/gogs.css
View File

@ -2764,6 +2764,12 @@ footer .container .links > *:first-child {
#delete-repo-modal .ui.message {
width: 100%!important;
}
.removed-code {
background-color: #ff9999;
}
.added-code {
background-color: #99ff99;
}
.organization {
padding-top: 15px;
padding-bottom: 80px;

8
public/less/_repository.less
View File

@ -1217,3 +1217,11 @@
width: 100%!important;
}
}
.removed-code {
background-color: #ff9999;
}
.added-code {
background-color: #99ff99;
}

6
routers/repo/commit.go
View File

@ -168,6 +168,12 @@ func Diff(ctx *middleware.Context) {
}
}
for _, diffFile := range diff.Files {
for _, diffSection := range diffFile.Sections {
diffSection.ComputeLinesDiff()
}
}
ctx.Data["IsSplitStyle"] = ctx.Query("style") == "split"
ctx.Data["Username"] = userName
ctx.Data["Reponame"] = repoName

14
templates/repo/diff_box.tmpl
View File

@ -26,7 +26,7 @@
{{end}}
</div>
<!-- todo finish all file status, now modify, add, delete and rename -->
<span class="status {{DiffTypeToStr .Type}} poping up" data-content="{{DiffTypeToStr .Type}}" data-variation="inverted tiny" data-position="right center">&nbsp;</span>
<span class="status {{DiffTypeToStr .GetType}} poping up" data-content="{{DiffTypeToStr .GetType}}" data-variation="inverted tiny" data-position="right center">&nbsp;</span>
<a class="file" href="#diff-{{.Index}}">{{.Name}}</a>
</li>
{{end}}
@ -71,18 +71,18 @@
{{if $.IsSplitStyle}}
{{range $j, $section := .Sections}}
{{range $k, $line := .Lines}}
<tr class="{{DiffLineTypeToStr .Type}}-code nl-{{$k}} ol-{{$k}}">
<tr class="{{DiffLineTypeToStr .GetType}}-code nl-{{$k}} ol-{{$k}}">
<td class="lines-num lines-num-old">
<span rel="{{if $line.LeftIdx}}diff-{{Sha1 $file.Name}}L{{$line.LeftIdx}}{{end}}">{{if $line.LeftIdx}}{{$line.LeftIdx}}{{end}}</span>
</td>
<td class="lines-code halfwidth">
<pre class="wrap">{{if $line.LeftIdx}}{{$line.Content}}{{end}}</pre>
<pre class="wrap">{{if $line.LeftIdx}}{{$line.ParsedContent}}{{end}}</pre>
</td>
<td class="lines-num lines-num-new">
<span rel="{{if $line.RightIdx}}diff-{{Sha1 $file.Name}}R{{$line.RightIdx}}{{end}}">{{if $line.RightIdx}}{{$line.RightIdx}}{{end}}</span>
</td>
<td class="lines-code halfwidth">
<pre class="wrap">{{if $line.RightIdx}}{{$line.Content}}{{end}}</pre>
<pre class="wrap">{{if $line.RightIdx}}{{$line.ParsedContent}}{{end}}</pre>
</td>
</tr>
{{end}}
@ -90,8 +90,8 @@
{{else}}
{{range $j, $section := .Sections}}
{{range $k, $line := .Lines}}
<tr class="{{DiffLineTypeToStr .Type}}-code nl-{{$k}} ol-{{$k}}">
{{if eq .Type 4}}
<tr class="{{DiffLineTypeToStr .GetType}}-code nl-{{$k}} ol-{{$k}}">
{{if eq .GetType 4}}
<td colspan="2" class="lines-num">
{{/* {{if gt $j 0}}<span class="fold octicon octicon-fold"></span>{{end}} */}}
</td>
@ -104,7 +104,7 @@
</td>
{{end}}
<td class="lines-code">
<pre>{{$line.Content}}</pre>
<pre>{{$line.ParsedContent}}</pre>
</td>
</tr>
{{end}}