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Merge pull request #2335 from andreynering/highlight-diff
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commit
bcf6aed452
@ -13,10 +13,13 @@ 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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"golang.org/x/text/transform"
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"github.com/sergi/go-diff/diffmatchpatch"
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"github.com/gogits/git-module"
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@ -25,16 +28,19 @@ import (
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"github.com/gogits/gogs/modules/process"
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)
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// Diff line types.
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type DiffLineType uint8
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const (
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DIFF_LINE_PLAIN = iota + 1
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DIFF_LINE_PLAIN DiffLineType = iota + 1
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DIFF_LINE_ADD
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DIFF_LINE_DEL
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DIFF_LINE_SECTION
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)
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type DiffFileType uint8
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const (
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DIFF_FILE_ADD = iota + 1
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DIFF_FILE_ADD DiffFileType = iota + 1
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DIFF_FILE_CHANGE
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DIFF_FILE_DEL
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DIFF_FILE_RENAME
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@ -43,12 +49,13 @@ const (
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type DiffLine struct {
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LeftIdx int
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RightIdx int
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Type int
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Type DiffLineType
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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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return d.Type
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func (d *DiffLine) GetType() int {
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return int(d.Type)
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}
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type DiffSection struct {
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@ -56,12 +63,89 @@ type DiffSection struct {
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Lines []*DiffLine
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}
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func diffToHtml(diffRecord []diffmatchpatch.Diff, lineType DiffLineType) 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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// get an specific line by type (add or del) and file line number
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func (diffSection *DiffSection) GetLine(lineType DiffLineType, idx int) *DiffLine {
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difference := 0
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for _, diffLine := range diffSection.Lines {
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if diffLine.Type == DIFF_LINE_PLAIN {
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// get the difference of line numbers between ADD and DEL versions
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difference = diffLine.RightIdx - diffLine.LeftIdx
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continue
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}
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if lineType == DIFF_LINE_DEL {
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if diffLine.RightIdx == 0 && diffLine.LeftIdx == idx - difference {
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return diffLine
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}
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} else if lineType == DIFF_LINE_ADD {
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if diffLine.LeftIdx == 0 && diffLine.RightIdx == idx + difference {
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return diffLine
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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 _, 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.GetLine(DIFF_LINE_DEL, diffLine.RightIdx)
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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.GetLine(DIFF_LINE_ADD, diffLine.LeftIdx)
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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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Index int
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Addition, Deletion int
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Type int
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Type DiffFileType
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IsCreated bool
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IsDeleted bool
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IsBin bool
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@ -69,6 +153,10 @@ type DiffFile struct {
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Sections []*DiffSection
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}
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func (diffFile *DiffFile) GetType() int {
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return int(diffFile.Type)
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}
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type Diff struct {
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TotalAddition, TotalDeletion int
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Files []*DiffFile
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70
models/git_diff_test.go
Normal file
70
models/git_diff_test.go
Normal file
@ -0,0 +1,70 @@
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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 assertLineEqual(t *testing.T, d1 *DiffLine, d2 *DiffLine) {
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if d1 != d2 {
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t.Errorf("%v should be equal %v", d1, d2)
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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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// test if GetLine is return the correct lines
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func TestGetLine(t *testing.T) {
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ds := DiffSection{Lines: []*DiffLine{
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&DiffLine{LeftIdx: 28, RightIdx: 28, Type: DIFF_LINE_PLAIN},
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&DiffLine{LeftIdx: 29, RightIdx: 29, Type: DIFF_LINE_PLAIN},
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&DiffLine{LeftIdx: 30, RightIdx: 30, Type: DIFF_LINE_PLAIN},
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&DiffLine{LeftIdx: 31, RightIdx: 0, Type: DIFF_LINE_DEL},
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&DiffLine{LeftIdx: 0, RightIdx: 31, Type: DIFF_LINE_ADD},
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&DiffLine{LeftIdx: 0, RightIdx: 32, Type: DIFF_LINE_ADD},
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&DiffLine{LeftIdx: 32, RightIdx: 33, Type: DIFF_LINE_PLAIN},
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&DiffLine{LeftIdx: 33, RightIdx: 0, Type: DIFF_LINE_DEL},
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&DiffLine{LeftIdx: 34, RightIdx: 0, Type: DIFF_LINE_DEL},
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&DiffLine{LeftIdx: 35, RightIdx: 0, Type: DIFF_LINE_DEL},
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&DiffLine{LeftIdx: 36, RightIdx: 0, Type: DIFF_LINE_DEL},
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&DiffLine{LeftIdx: 0, RightIdx: 34, Type: DIFF_LINE_ADD},
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&DiffLine{LeftIdx: 0, RightIdx: 35, Type: DIFF_LINE_ADD},
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&DiffLine{LeftIdx: 0, RightIdx: 36, Type: DIFF_LINE_ADD},
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&DiffLine{LeftIdx: 0, RightIdx: 37, Type: DIFF_LINE_ADD},
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&DiffLine{LeftIdx: 37, RightIdx: 38, Type: DIFF_LINE_PLAIN},
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&DiffLine{LeftIdx: 38, RightIdx: 39, Type: DIFF_LINE_PLAIN},
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}}
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assertLineEqual(t, ds.GetLine(DIFF_LINE_ADD, 31), ds.Lines[4])
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assertLineEqual(t, ds.GetLine(DIFF_LINE_DEL, 31), ds.Lines[3])
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assertLineEqual(t, ds.GetLine(DIFF_LINE_ADD, 33), ds.Lines[11])
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assertLineEqual(t, ds.GetLine(DIFF_LINE_ADD, 34), ds.Lines[12])
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assertLineEqual(t, ds.GetLine(DIFF_LINE_ADD, 35), ds.Lines[13])
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assertLineEqual(t, ds.GetLine(DIFF_LINE_ADD, 36), ds.Lines[14])
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assertLineEqual(t, ds.GetLine(DIFF_LINE_DEL, 34), ds.Lines[7])
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assertLineEqual(t, ds.GetLine(DIFF_LINE_DEL, 35), ds.Lines[8])
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assertLineEqual(t, ds.GetLine(DIFF_LINE_DEL, 36), ds.Lines[9])
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assertLineEqual(t, ds.GetLine(DIFF_LINE_DEL, 37), ds.Lines[10])
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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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@ -26,7 +26,7 @@
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{{end}}
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</div>
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<!-- todo finish all file status, now modify, add, delete and rename -->
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<span class="status {{DiffTypeToStr .Type}} poping up" data-content="{{DiffTypeToStr .Type}}" data-variation="inverted tiny" data-position="right center"> </span>
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<span class="status {{DiffTypeToStr .GetType}} poping up" data-content="{{DiffTypeToStr .GetType}}" data-variation="inverted tiny" data-position="right center"> </span>
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<a class="file" href="#diff-{{.Index}}">{{.Name}}</a>
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</li>
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{{end}}
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@ -71,18 +71,18 @@
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{{if $.IsSplitStyle}}
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{{range $j, $section := .Sections}}
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{{range $k, $line := .Lines}}
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<tr class="{{DiffLineTypeToStr .Type}}-code nl-{{$k}} ol-{{$k}}">
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<tr class="{{DiffLineTypeToStr .GetType}}-code nl-{{$k}} ol-{{$k}}">
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<td class="lines-num lines-num-old">
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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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@ -90,8 +90,8 @@
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{{else}}
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{{range $j, $section := .Sections}}
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{{range $k, $line := .Lines}}
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<tr class="{{DiffLineTypeToStr .Type}}-code nl-{{$k}} ol-{{$k}}">
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{{if eq .Type 4}}
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<tr class="{{DiffLineTypeToStr .GetType}}-code nl-{{$k}} ol-{{$k}}">
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{{if eq .GetType 4}}
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<td colspan="2" class="lines-num">
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{{/* {{if gt $j 0}}<span class="fold octicon octicon-fold"></span>{{end}} */}}
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</td>
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@ -104,7 +104,7 @@
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</td>
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{{end}}
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<td class="lines-code">
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<pre>{{$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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