diff --git a/models/git_diff.go b/models/git_diff.go index 22075ef76..bfbc9c73a 100644 --- a/models/git_diff.go +++ b/models/git_diff.go @@ -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 + ""+html.EscapeString(s.Text)+"" + } else if s.Type == diffmatchpatch.DiffDelete && lineType == DIFF_LINE_DEL { + result = result + ""+html.EscapeString(s.Text)+"" + } 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 diff --git a/models/git_diff_test.go b/models/git_diff_test.go new file mode 100644 index 000000000..a7b9bdd62 --- /dev/null +++ b/models/git_diff_test.go @@ -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 bar 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 bar 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]) +} diff --git a/public/css/gogs.css b/public/css/gogs.css index 0160c5d91..fd9359af1 100755 --- a/public/css/gogs.css +++ b/public/css/gogs.css @@ -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; diff --git a/public/less/_repository.less b/public/less/_repository.less index 441832daf..7bb9c8a94 100644 --- a/public/less/_repository.less +++ b/public/less/_repository.less @@ -1217,3 +1217,11 @@ width: 100%!important; } } + +.removed-code { + background-color: #ff9999; +} + +.added-code { + background-color: #99ff99; +} diff --git a/routers/repo/commit.go b/routers/repo/commit.go index c3fc4d177..9e46c2e84 100644 --- a/routers/repo/commit.go +++ b/routers/repo/commit.go @@ -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 diff --git a/templates/repo/diff_box.tmpl b/templates/repo/diff_box.tmpl index 3093210b4..da512ebf0 100644 --- a/templates/repo/diff_box.tmpl +++ b/templates/repo/diff_box.tmpl @@ -26,7 +26,7 @@ {{end}} -   +   {{.Name}} {{end}} @@ -71,18 +71,18 @@ {{if $.IsSplitStyle}} {{range $j, $section := .Sections}} {{range $k, $line := .Lines}} - + {{if $line.LeftIdx}}{{$line.LeftIdx}}{{end}} - 
{{if $line.LeftIdx}}{{$line.Content}}{{end}}
+ 
{{if $line.LeftIdx}}{{$line.ParsedContent}}{{end}}
{{if $line.RightIdx}}{{$line.RightIdx}}{{end}} - 
{{if $line.RightIdx}}{{$line.Content}}{{end}}
+ 
{{if $line.RightIdx}}{{$line.ParsedContent}}{{end}}
{{end}} @@ -90,8 +90,8 @@ {{else}} {{range $j, $section := .Sections}} {{range $k, $line := .Lines}} - - {{if eq .Type 4}} + + {{if eq .GetType 4}} {{/* {{if gt $j 0}}{{end}} */}} @@ -104,7 +104,7 @@ {{end}} - 
{{$line.Content}}
+ 
{{$line.ParsedContent}}
{{end}}