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https://github.com/go-gitea/gitea
synced 2024-08-16 20:30:48 +02:00
Highlighting differences of lines in the diff view.
This commit is contained in:
parent
0cb7396840
commit
73474c043b
@ -13,6 +13,8 @@ import (
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"os"
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"os/exec"
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"strings"
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"html/template"
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"html"
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"github.com/Unknwon/com"
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"golang.org/x/net/html/charset"
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@ -23,6 +25,7 @@ import (
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"github.com/gogits/gogs/modules/base"
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"github.com/gogits/gogs/modules/log"
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"github.com/gogits/gogs/modules/process"
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"github.com/sergi/go-diff/diffmatchpatch"
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)
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// Diff line types.
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@ -45,6 +48,7 @@ type DiffLine struct {
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RightIdx int
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Type int
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Content string
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ParsedContent template.HTML
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}
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func (d DiffLine) GetType() int {
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@ -56,6 +60,87 @@ type DiffSection struct {
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Lines []*DiffLine
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}
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func diffToHtml(diffRecord []diffmatchpatch.Diff, lineType int) template.HTML {
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result := ""
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for _, s := range diffRecord {
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if s.Type == diffmatchpatch.DiffInsert && lineType == DIFF_LINE_ADD {
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result = result + "<span class=\"added-code\">"+html.EscapeString(s.Text)+"</span>"
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} else if s.Type == diffmatchpatch.DiffDelete && lineType == DIFF_LINE_DEL {
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result = result + "<span class=\"removed-code\">"+html.EscapeString(s.Text)+"</span>"
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} else if s.Type == diffmatchpatch.DiffEqual {
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result = result + html.EscapeString(s.Text)
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}
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}
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return template.HTML(result)
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}
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func (diffSection *DiffSection) GetLeftLine(idx int, sliceIdx int) *DiffLine {
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for i, diffLine := range diffSection.Lines {
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if diffLine.LeftIdx == idx && diffLine.RightIdx == 0 {
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// ignore the the lines are too far from each other
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if i > sliceIdx-5 && i < sliceIdx+5 {
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return diffLine
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} else {
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return nil
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}
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}
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}
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return nil
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}
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func (diffSection *DiffSection) GetRightLine(idx int, sliceIdx int) *DiffLine {
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for i, diffLine := range diffSection.Lines {
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if diffLine.RightIdx == idx && diffLine.LeftIdx == 0 {
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// ignore the the lines are too far from each other
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if i > sliceIdx-5 && i < sliceIdx+5 {
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return diffLine
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} else {
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return nil
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}
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}
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}
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return nil
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}
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// computes diff of each diff line and set the HTML on diffLine.ParsedContent
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func (diffSection *DiffSection) ComputeLinesDiff() {
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for i, diffLine := range diffSection.Lines {
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var compareDiffLine *DiffLine
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var diff1, diff2 string
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// default content: as is
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diffLine.ParsedContent = template.HTML(html.EscapeString(diffLine.Content[1:]))
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// just compute diff for adds and removes
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if diffLine.Type != DIFF_LINE_ADD && diffLine.Type != DIFF_LINE_DEL {
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continue
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}
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// try to find equivalent diff line. ignore, otherwise
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if diffLine.Type == DIFF_LINE_ADD {
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compareDiffLine = diffSection.GetLeftLine(diffLine.RightIdx, i)
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if compareDiffLine == nil {
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continue
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}
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diff1 = compareDiffLine.Content
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diff2 = diffLine.Content
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} else {
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compareDiffLine = diffSection.GetRightLine(diffLine.LeftIdx, i)
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if compareDiffLine == nil {
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continue
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}
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diff1 = diffLine.Content
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diff2 = compareDiffLine.Content
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}
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dmp := diffmatchpatch.New()
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diffRecord := dmp.DiffMain(diff1[1:], diff2[1:], true)
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diffRecord = dmp.DiffCleanupSemantic(diffRecord)
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diffLine.ParsedContent = diffToHtml(diffRecord, diffLine.Type)
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}
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}
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type DiffFile struct {
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Name string
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OldName string
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29
models/git_diff_test.go
Normal file
29
models/git_diff_test.go
Normal file
@ -0,0 +1,29 @@
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package models
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import (
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dmp "github.com/sergi/go-diff/diffmatchpatch"
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"html/template"
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"testing"
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)
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func assertEqual(t *testing.T, s1 string, s2 template.HTML) {
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if s1 != string(s2) {
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t.Errorf("%s should be equal %s", s2, s1)
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}
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}
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func TestDiffToHtml(t *testing.T) {
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assertEqual(t, "foo <span class=\"added-code\">bar</span> biz", diffToHtml([]dmp.Diff{
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dmp.Diff{dmp.DiffEqual, "foo "},
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dmp.Diff{dmp.DiffInsert, "bar"},
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dmp.Diff{dmp.DiffDelete, " baz"},
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dmp.Diff{dmp.DiffEqual, " biz"},
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}, DIFF_LINE_ADD))
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assertEqual(t, "foo <span class=\"removed-code\">bar</span> biz", diffToHtml([]dmp.Diff{
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dmp.Diff{dmp.DiffEqual, "foo "},
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dmp.Diff{dmp.DiffDelete, "bar"},
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dmp.Diff{dmp.DiffInsert, " baz"},
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dmp.Diff{dmp.DiffEqual, " biz"},
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}, DIFF_LINE_DEL))
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}
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@ -2764,6 +2764,12 @@ footer .container .links > *:first-child {
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#delete-repo-modal .ui.message {
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width: 100%!important;
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}
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.removed-code {
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background-color: #ff9999;
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}
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.added-code {
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background-color: #99ff99;
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}
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.organization {
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padding-top: 15px;
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padding-bottom: 80px;
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@ -1217,3 +1217,11 @@
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width: 100%!important;
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}
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}
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.removed-code {
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background-color: #ff9999;
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}
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.added-code {
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background-color: #99ff99;
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}
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@ -168,6 +168,12 @@ func Diff(ctx *middleware.Context) {
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}
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}
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for _, diffFile := range diff.Files {
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for _, diffSection := range diffFile.Sections {
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diffSection.ComputeLinesDiff()
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}
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}
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ctx.Data["IsSplitStyle"] = ctx.Query("style") == "split"
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ctx.Data["Username"] = userName
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ctx.Data["Reponame"] = repoName
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@ -76,13 +76,13 @@
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<span rel="{{if $line.LeftIdx}}diff-{{Sha1 $file.Name}}L{{$line.LeftIdx}}{{end}}">{{if $line.LeftIdx}}{{$line.LeftIdx}}{{end}}</span>
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</td>
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<td class="lines-code halfwidth">
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<pre class="wrap">{{if $line.LeftIdx}}{{$line.Content}}{{end}}</pre>
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<pre class="wrap">{{if $line.LeftIdx}}{{$line.ParsedContent}}{{end}}</pre>
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</td>
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<td class="lines-num lines-num-new">
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<span rel="{{if $line.RightIdx}}diff-{{Sha1 $file.Name}}R{{$line.RightIdx}}{{end}}">{{if $line.RightIdx}}{{$line.RightIdx}}{{end}}</span>
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</td>
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<td class="lines-code halfwidth">
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<pre class="wrap">{{if $line.RightIdx}}{{$line.Content}}{{end}}</pre>
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<pre class="wrap">{{if $line.RightIdx}}{{$line.ParsedContent}}{{end}}</pre>
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</td>
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</tr>
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{{end}}
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@ -104,7 +104,7 @@
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</td>
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{{end}}
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<td class="lines-code">
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<pre>{{$line.Content}}</pre>
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<pre>{{$line.ParsedContent}}</pre>
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</td>
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</tr>
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{{end}}
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