722a7c902d
In investigating #7947 it has become clear that the storage component of go-git repositories needs closing. This PR adds this Close function and adds the Close functions as necessary. In TransferOwnership the ctx.Repo.GitRepo is closed if it is open to help prevent the risk of multiple open files. Fixes #7947
831 lines
22 KiB
Go
831 lines
22 KiB
Go
// Copyright 2014 The Gogs Authors. All rights reserved.
|
|
// Copyright 2019 The Gitea Authors. All rights reserved.
|
|
// Use of this source code is governed by a MIT-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package gitdiff
|
|
|
|
import (
|
|
"bufio"
|
|
"bytes"
|
|
"fmt"
|
|
"html"
|
|
"html/template"
|
|
"io"
|
|
"io/ioutil"
|
|
"os"
|
|
"os/exec"
|
|
"regexp"
|
|
"sort"
|
|
"strconv"
|
|
"strings"
|
|
|
|
"code.gitea.io/gitea/models"
|
|
"code.gitea.io/gitea/modules/charset"
|
|
"code.gitea.io/gitea/modules/git"
|
|
"code.gitea.io/gitea/modules/highlight"
|
|
"code.gitea.io/gitea/modules/log"
|
|
"code.gitea.io/gitea/modules/process"
|
|
"code.gitea.io/gitea/modules/setting"
|
|
|
|
"github.com/sergi/go-diff/diffmatchpatch"
|
|
"github.com/unknwon/com"
|
|
stdcharset "golang.org/x/net/html/charset"
|
|
"golang.org/x/text/transform"
|
|
)
|
|
|
|
// DiffLineType represents the type of a DiffLine.
|
|
type DiffLineType uint8
|
|
|
|
// DiffLineType possible values.
|
|
const (
|
|
DiffLinePlain DiffLineType = iota + 1
|
|
DiffLineAdd
|
|
DiffLineDel
|
|
DiffLineSection
|
|
)
|
|
|
|
// DiffFileType represents the type of a DiffFile.
|
|
type DiffFileType uint8
|
|
|
|
// DiffFileType possible values.
|
|
const (
|
|
DiffFileAdd DiffFileType = iota + 1
|
|
DiffFileChange
|
|
DiffFileDel
|
|
DiffFileRename
|
|
)
|
|
|
|
// DiffLine represents a line difference in a DiffSection.
|
|
type DiffLine struct {
|
|
LeftIdx int
|
|
RightIdx int
|
|
Type DiffLineType
|
|
Content string
|
|
Comments []*models.Comment
|
|
}
|
|
|
|
// GetType returns the type of a DiffLine.
|
|
func (d *DiffLine) GetType() int {
|
|
return int(d.Type)
|
|
}
|
|
|
|
// CanComment returns whether or not a line can get commented
|
|
func (d *DiffLine) CanComment() bool {
|
|
return len(d.Comments) == 0 && d.Type != DiffLineSection
|
|
}
|
|
|
|
// GetCommentSide returns the comment side of the first comment, if not set returns empty string
|
|
func (d *DiffLine) GetCommentSide() string {
|
|
if len(d.Comments) == 0 {
|
|
return ""
|
|
}
|
|
return d.Comments[0].DiffSide()
|
|
}
|
|
|
|
// GetLineTypeMarker returns the line type marker
|
|
func (d *DiffLine) GetLineTypeMarker() string {
|
|
if strings.IndexByte(" +-", d.Content[0]) > -1 {
|
|
return d.Content[0:1]
|
|
}
|
|
return ""
|
|
}
|
|
|
|
// escape a line's content or return <br> needed for copy/paste purposes
|
|
func getLineContent(content string) string {
|
|
if len(content) > 0 {
|
|
return html.EscapeString(content)
|
|
}
|
|
return "<br>"
|
|
}
|
|
|
|
// DiffSection represents a section of a DiffFile.
|
|
type DiffSection struct {
|
|
Name string
|
|
Lines []*DiffLine
|
|
}
|
|
|
|
var (
|
|
addedCodePrefix = []byte(`<span class="added-code">`)
|
|
removedCodePrefix = []byte(`<span class="removed-code">`)
|
|
codeTagSuffix = []byte(`</span>`)
|
|
)
|
|
|
|
func diffToHTML(diffs []diffmatchpatch.Diff, lineType DiffLineType) template.HTML {
|
|
buf := bytes.NewBuffer(nil)
|
|
|
|
for i := range diffs {
|
|
switch {
|
|
case diffs[i].Type == diffmatchpatch.DiffInsert && lineType == DiffLineAdd:
|
|
buf.Write(addedCodePrefix)
|
|
buf.WriteString(getLineContent(diffs[i].Text))
|
|
buf.Write(codeTagSuffix)
|
|
case diffs[i].Type == diffmatchpatch.DiffDelete && lineType == DiffLineDel:
|
|
buf.Write(removedCodePrefix)
|
|
buf.WriteString(getLineContent(diffs[i].Text))
|
|
buf.Write(codeTagSuffix)
|
|
case diffs[i].Type == diffmatchpatch.DiffEqual:
|
|
buf.WriteString(getLineContent(diffs[i].Text))
|
|
}
|
|
}
|
|
|
|
return template.HTML(buf.Bytes())
|
|
}
|
|
|
|
// GetLine gets a specific line by type (add or del) and file line number
|
|
func (diffSection *DiffSection) GetLine(lineType DiffLineType, idx int) *DiffLine {
|
|
var (
|
|
difference = 0
|
|
addCount = 0
|
|
delCount = 0
|
|
matchDiffLine *DiffLine
|
|
)
|
|
|
|
LOOP:
|
|
for _, diffLine := range diffSection.Lines {
|
|
switch diffLine.Type {
|
|
case DiffLineAdd:
|
|
addCount++
|
|
case DiffLineDel:
|
|
delCount++
|
|
default:
|
|
if matchDiffLine != nil {
|
|
break LOOP
|
|
}
|
|
difference = diffLine.RightIdx - diffLine.LeftIdx
|
|
addCount = 0
|
|
delCount = 0
|
|
}
|
|
|
|
switch lineType {
|
|
case DiffLineDel:
|
|
if diffLine.RightIdx == 0 && diffLine.LeftIdx == idx-difference {
|
|
matchDiffLine = diffLine
|
|
}
|
|
case DiffLineAdd:
|
|
if diffLine.LeftIdx == 0 && diffLine.RightIdx == idx+difference {
|
|
matchDiffLine = diffLine
|
|
}
|
|
}
|
|
}
|
|
|
|
if addCount == delCount {
|
|
return matchDiffLine
|
|
}
|
|
return nil
|
|
}
|
|
|
|
var diffMatchPatch = diffmatchpatch.New()
|
|
|
|
func init() {
|
|
diffMatchPatch.DiffEditCost = 100
|
|
}
|
|
|
|
// GetComputedInlineDiffFor computes inline diff for the given line.
|
|
func (diffSection *DiffSection) GetComputedInlineDiffFor(diffLine *DiffLine) template.HTML {
|
|
if setting.Git.DisableDiffHighlight {
|
|
return template.HTML(getLineContent(diffLine.Content[1:]))
|
|
}
|
|
var (
|
|
compareDiffLine *DiffLine
|
|
diff1 string
|
|
diff2 string
|
|
)
|
|
|
|
// try to find equivalent diff line. ignore, otherwise
|
|
switch diffLine.Type {
|
|
case DiffLineAdd:
|
|
compareDiffLine = diffSection.GetLine(DiffLineDel, diffLine.RightIdx)
|
|
if compareDiffLine == nil {
|
|
return template.HTML(getLineContent(diffLine.Content[1:]))
|
|
}
|
|
diff1 = compareDiffLine.Content
|
|
diff2 = diffLine.Content
|
|
case DiffLineDel:
|
|
compareDiffLine = diffSection.GetLine(DiffLineAdd, diffLine.LeftIdx)
|
|
if compareDiffLine == nil {
|
|
return template.HTML(getLineContent(diffLine.Content[1:]))
|
|
}
|
|
diff1 = diffLine.Content
|
|
diff2 = compareDiffLine.Content
|
|
default:
|
|
if strings.IndexByte(" +-", diffLine.Content[0]) > -1 {
|
|
return template.HTML(getLineContent(diffLine.Content[1:]))
|
|
}
|
|
return template.HTML(getLineContent(diffLine.Content))
|
|
}
|
|
|
|
diffRecord := diffMatchPatch.DiffMain(diff1[1:], diff2[1:], true)
|
|
diffRecord = diffMatchPatch.DiffCleanupEfficiency(diffRecord)
|
|
|
|
return diffToHTML(diffRecord, diffLine.Type)
|
|
}
|
|
|
|
// DiffFile represents a file diff.
|
|
type DiffFile struct {
|
|
Name string
|
|
OldName string
|
|
Index int
|
|
Addition, Deletion int
|
|
Type DiffFileType
|
|
IsCreated bool
|
|
IsDeleted bool
|
|
IsBin bool
|
|
IsLFSFile bool
|
|
IsRenamed bool
|
|
IsSubmodule bool
|
|
Sections []*DiffSection
|
|
IsIncomplete bool
|
|
}
|
|
|
|
// GetType returns type of diff file.
|
|
func (diffFile *DiffFile) GetType() int {
|
|
return int(diffFile.Type)
|
|
}
|
|
|
|
// GetHighlightClass returns highlight class for a filename.
|
|
func (diffFile *DiffFile) GetHighlightClass() string {
|
|
return highlight.FileNameToHighlightClass(diffFile.Name)
|
|
}
|
|
|
|
// Diff represents a difference between two git trees.
|
|
type Diff struct {
|
|
TotalAddition, TotalDeletion int
|
|
Files []*DiffFile
|
|
IsIncomplete bool
|
|
}
|
|
|
|
// LoadComments loads comments into each line
|
|
func (diff *Diff) LoadComments(issue *models.Issue, currentUser *models.User) error {
|
|
allComments, err := models.FetchCodeComments(issue, currentUser)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
for _, file := range diff.Files {
|
|
if lineCommits, ok := allComments[file.Name]; ok {
|
|
for _, section := range file.Sections {
|
|
for _, line := range section.Lines {
|
|
if comments, ok := lineCommits[int64(line.LeftIdx*-1)]; ok {
|
|
line.Comments = append(line.Comments, comments...)
|
|
}
|
|
if comments, ok := lineCommits[int64(line.RightIdx)]; ok {
|
|
line.Comments = append(line.Comments, comments...)
|
|
}
|
|
sort.SliceStable(line.Comments, func(i, j int) bool {
|
|
return line.Comments[i].CreatedUnix < line.Comments[j].CreatedUnix
|
|
})
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// NumFiles returns number of files changes in a diff.
|
|
func (diff *Diff) NumFiles() int {
|
|
return len(diff.Files)
|
|
}
|
|
|
|
// Example: @@ -1,8 +1,9 @@ => [..., 1, 8, 1, 9]
|
|
var hunkRegex = regexp.MustCompile(`^@@ -(?P<beginOld>[0-9]+)(,(?P<endOld>[0-9]+))? \+(?P<beginNew>[0-9]+)(,(?P<endNew>[0-9]+))? @@`)
|
|
|
|
func isHeader(lof string) bool {
|
|
return strings.HasPrefix(lof, cmdDiffHead) || strings.HasPrefix(lof, "---") || strings.HasPrefix(lof, "+++")
|
|
}
|
|
|
|
// CutDiffAroundLine cuts a diff of a file in way that only the given line + numberOfLine above it will be shown
|
|
// it also recalculates hunks and adds the appropriate headers to the new diff.
|
|
// Warning: Only one-file diffs are allowed.
|
|
func CutDiffAroundLine(originalDiff io.Reader, line int64, old bool, numbersOfLine int) string {
|
|
if line == 0 || numbersOfLine == 0 {
|
|
// no line or num of lines => no diff
|
|
return ""
|
|
}
|
|
scanner := bufio.NewScanner(originalDiff)
|
|
hunk := make([]string, 0)
|
|
// begin is the start of the hunk containing searched line
|
|
// end is the end of the hunk ...
|
|
// currentLine is the line number on the side of the searched line (differentiated by old)
|
|
// otherLine is the line number on the opposite side of the searched line (differentiated by old)
|
|
var begin, end, currentLine, otherLine int64
|
|
var headerLines int
|
|
for scanner.Scan() {
|
|
lof := scanner.Text()
|
|
// Add header to enable parsing
|
|
if isHeader(lof) {
|
|
hunk = append(hunk, lof)
|
|
headerLines++
|
|
}
|
|
if currentLine > line {
|
|
break
|
|
}
|
|
// Detect "hunk" with contains commented lof
|
|
if strings.HasPrefix(lof, "@@") {
|
|
// Already got our hunk. End of hunk detected!
|
|
if len(hunk) > headerLines {
|
|
break
|
|
}
|
|
// A map with named groups of our regex to recognize them later more easily
|
|
submatches := hunkRegex.FindStringSubmatch(lof)
|
|
groups := make(map[string]string)
|
|
for i, name := range hunkRegex.SubexpNames() {
|
|
if i != 0 && name != "" {
|
|
groups[name] = submatches[i]
|
|
}
|
|
}
|
|
if old {
|
|
begin = com.StrTo(groups["beginOld"]).MustInt64()
|
|
end = com.StrTo(groups["endOld"]).MustInt64()
|
|
// init otherLine with begin of opposite side
|
|
otherLine = com.StrTo(groups["beginNew"]).MustInt64()
|
|
} else {
|
|
begin = com.StrTo(groups["beginNew"]).MustInt64()
|
|
if groups["endNew"] != "" {
|
|
end = com.StrTo(groups["endNew"]).MustInt64()
|
|
} else {
|
|
end = 0
|
|
}
|
|
// init otherLine with begin of opposite side
|
|
otherLine = com.StrTo(groups["beginOld"]).MustInt64()
|
|
}
|
|
end += begin // end is for real only the number of lines in hunk
|
|
// lof is between begin and end
|
|
if begin <= line && end >= line {
|
|
hunk = append(hunk, lof)
|
|
currentLine = begin
|
|
continue
|
|
}
|
|
} else if len(hunk) > headerLines {
|
|
hunk = append(hunk, lof)
|
|
// Count lines in context
|
|
switch lof[0] {
|
|
case '+':
|
|
if !old {
|
|
currentLine++
|
|
} else {
|
|
otherLine++
|
|
}
|
|
case '-':
|
|
if old {
|
|
currentLine++
|
|
} else {
|
|
otherLine++
|
|
}
|
|
default:
|
|
currentLine++
|
|
otherLine++
|
|
}
|
|
}
|
|
}
|
|
|
|
// No hunk found
|
|
if currentLine == 0 {
|
|
return ""
|
|
}
|
|
// headerLines + hunkLine (1) = totalNonCodeLines
|
|
if len(hunk)-headerLines-1 <= numbersOfLine {
|
|
// No need to cut the hunk => return existing hunk
|
|
return strings.Join(hunk, "\n")
|
|
}
|
|
var oldBegin, oldNumOfLines, newBegin, newNumOfLines int64
|
|
if old {
|
|
oldBegin = currentLine
|
|
newBegin = otherLine
|
|
} else {
|
|
oldBegin = otherLine
|
|
newBegin = currentLine
|
|
}
|
|
// headers + hunk header
|
|
newHunk := make([]string, headerLines)
|
|
// transfer existing headers
|
|
copy(newHunk, hunk[:headerLines])
|
|
// transfer last n lines
|
|
newHunk = append(newHunk, hunk[len(hunk)-numbersOfLine-1:]...)
|
|
// calculate newBegin, ... by counting lines
|
|
for i := len(hunk) - 1; i >= len(hunk)-numbersOfLine; i-- {
|
|
switch hunk[i][0] {
|
|
case '+':
|
|
newBegin--
|
|
newNumOfLines++
|
|
case '-':
|
|
oldBegin--
|
|
oldNumOfLines++
|
|
default:
|
|
oldBegin--
|
|
newBegin--
|
|
newNumOfLines++
|
|
oldNumOfLines++
|
|
}
|
|
}
|
|
// construct the new hunk header
|
|
newHunk[headerLines] = fmt.Sprintf("@@ -%d,%d +%d,%d @@",
|
|
oldBegin, oldNumOfLines, newBegin, newNumOfLines)
|
|
return strings.Join(newHunk, "\n")
|
|
}
|
|
|
|
const cmdDiffHead = "diff --git "
|
|
|
|
// ParsePatch builds a Diff object from a io.Reader and some
|
|
// parameters.
|
|
// TODO: move this function to gogits/git-module
|
|
func ParsePatch(maxLines, maxLineCharacters, maxFiles int, reader io.Reader) (*Diff, error) {
|
|
var (
|
|
diff = &Diff{Files: make([]*DiffFile, 0)}
|
|
|
|
curFile = &DiffFile{}
|
|
curSection = &DiffSection{
|
|
Lines: make([]*DiffLine, 0, 10),
|
|
}
|
|
|
|
leftLine, rightLine int
|
|
lineCount int
|
|
curFileLinesCount int
|
|
curFileLFSPrefix bool
|
|
)
|
|
|
|
input := bufio.NewReader(reader)
|
|
isEOF := false
|
|
for !isEOF {
|
|
var linebuf bytes.Buffer
|
|
for {
|
|
b, err := input.ReadByte()
|
|
if err != nil {
|
|
if err == io.EOF {
|
|
isEOF = true
|
|
break
|
|
} else {
|
|
return nil, fmt.Errorf("ReadByte: %v", err)
|
|
}
|
|
}
|
|
if b == '\n' {
|
|
break
|
|
}
|
|
if linebuf.Len() < maxLineCharacters {
|
|
linebuf.WriteByte(b)
|
|
} else if linebuf.Len() == maxLineCharacters {
|
|
curFile.IsIncomplete = true
|
|
}
|
|
}
|
|
line := linebuf.String()
|
|
|
|
if strings.HasPrefix(line, "+++ ") || strings.HasPrefix(line, "--- ") || len(line) == 0 {
|
|
continue
|
|
}
|
|
|
|
trimLine := strings.Trim(line, "+- ")
|
|
|
|
if trimLine == models.LFSMetaFileIdentifier {
|
|
curFileLFSPrefix = true
|
|
}
|
|
|
|
if curFileLFSPrefix && strings.HasPrefix(trimLine, models.LFSMetaFileOidPrefix) {
|
|
oid := strings.TrimPrefix(trimLine, models.LFSMetaFileOidPrefix)
|
|
|
|
if len(oid) == 64 {
|
|
m := &models.LFSMetaObject{Oid: oid}
|
|
count, err := models.Count(m)
|
|
|
|
if err == nil && count > 0 {
|
|
curFile.IsBin = true
|
|
curFile.IsLFSFile = true
|
|
curSection.Lines = nil
|
|
}
|
|
}
|
|
}
|
|
|
|
curFileLinesCount++
|
|
lineCount++
|
|
|
|
// Diff data too large, we only show the first about maxLines lines
|
|
if curFileLinesCount >= maxLines {
|
|
curFile.IsIncomplete = true
|
|
}
|
|
switch {
|
|
case line[0] == ' ':
|
|
diffLine := &DiffLine{Type: DiffLinePlain, Content: line, LeftIdx: leftLine, RightIdx: rightLine}
|
|
leftLine++
|
|
rightLine++
|
|
curSection.Lines = append(curSection.Lines, diffLine)
|
|
continue
|
|
case line[0] == '@':
|
|
curSection = &DiffSection{}
|
|
curFile.Sections = append(curFile.Sections, curSection)
|
|
ss := strings.Split(line, "@@")
|
|
diffLine := &DiffLine{Type: DiffLineSection, Content: line}
|
|
curSection.Lines = append(curSection.Lines, diffLine)
|
|
|
|
// Parse line number.
|
|
ranges := strings.Split(ss[1][1:], " ")
|
|
leftLine, _ = com.StrTo(strings.Split(ranges[0], ",")[0][1:]).Int()
|
|
if len(ranges) > 1 {
|
|
rightLine, _ = com.StrTo(strings.Split(ranges[1], ",")[0]).Int()
|
|
} else {
|
|
log.Warn("Parse line number failed: %v", line)
|
|
rightLine = leftLine
|
|
}
|
|
continue
|
|
case line[0] == '+':
|
|
curFile.Addition++
|
|
diff.TotalAddition++
|
|
diffLine := &DiffLine{Type: DiffLineAdd, Content: line, RightIdx: rightLine}
|
|
rightLine++
|
|
curSection.Lines = append(curSection.Lines, diffLine)
|
|
continue
|
|
case line[0] == '-':
|
|
curFile.Deletion++
|
|
diff.TotalDeletion++
|
|
diffLine := &DiffLine{Type: DiffLineDel, Content: line, LeftIdx: leftLine}
|
|
if leftLine > 0 {
|
|
leftLine++
|
|
}
|
|
curSection.Lines = append(curSection.Lines, diffLine)
|
|
case strings.HasPrefix(line, "Binary"):
|
|
curFile.IsBin = true
|
|
continue
|
|
}
|
|
|
|
// Get new file.
|
|
if strings.HasPrefix(line, cmdDiffHead) {
|
|
var middle int
|
|
|
|
// Note: In case file name is surrounded by double quotes (it happens only in git-shell).
|
|
// e.g. diff --git "a/xxx" "b/xxx"
|
|
hasQuote := line[len(cmdDiffHead)] == '"'
|
|
if hasQuote {
|
|
middle = strings.Index(line, ` "b/`)
|
|
} else {
|
|
middle = strings.Index(line, " b/")
|
|
}
|
|
|
|
beg := len(cmdDiffHead)
|
|
a := line[beg+2 : middle]
|
|
b := line[middle+3:]
|
|
|
|
if hasQuote {
|
|
// Keep the entire string in double quotes for now
|
|
a = line[beg:middle]
|
|
b = line[middle+1:]
|
|
|
|
var err error
|
|
a, err = strconv.Unquote(a)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Unquote: %v", err)
|
|
}
|
|
b, err = strconv.Unquote(b)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Unquote: %v", err)
|
|
}
|
|
// Now remove the /a /b
|
|
a = a[2:]
|
|
b = b[2:]
|
|
|
|
}
|
|
|
|
curFile = &DiffFile{
|
|
Name: b,
|
|
OldName: a,
|
|
Index: len(diff.Files) + 1,
|
|
Type: DiffFileChange,
|
|
Sections: make([]*DiffSection, 0, 10),
|
|
IsRenamed: a != b,
|
|
}
|
|
diff.Files = append(diff.Files, curFile)
|
|
if len(diff.Files) >= maxFiles {
|
|
diff.IsIncomplete = true
|
|
_, err := io.Copy(ioutil.Discard, reader)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Copy: %v", err)
|
|
}
|
|
break
|
|
}
|
|
curFileLinesCount = 0
|
|
curFileLFSPrefix = false
|
|
|
|
// Check file diff type and is submodule.
|
|
for {
|
|
line, err := input.ReadString('\n')
|
|
if err != nil {
|
|
if err == io.EOF {
|
|
isEOF = true
|
|
} else {
|
|
return nil, fmt.Errorf("ReadString: %v", err)
|
|
}
|
|
}
|
|
|
|
switch {
|
|
case strings.HasPrefix(line, "new file"):
|
|
curFile.Type = DiffFileAdd
|
|
curFile.IsCreated = true
|
|
case strings.HasPrefix(line, "deleted"):
|
|
curFile.Type = DiffFileDel
|
|
curFile.IsDeleted = true
|
|
case strings.HasPrefix(line, "index"):
|
|
curFile.Type = DiffFileChange
|
|
case strings.HasPrefix(line, "similarity index 100%"):
|
|
curFile.Type = DiffFileRename
|
|
}
|
|
if curFile.Type > 0 {
|
|
if strings.HasSuffix(line, " 160000\n") {
|
|
curFile.IsSubmodule = true
|
|
}
|
|
break
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// FIXME: detect encoding while parsing.
|
|
var buf bytes.Buffer
|
|
for _, f := range diff.Files {
|
|
buf.Reset()
|
|
for _, sec := range f.Sections {
|
|
for _, l := range sec.Lines {
|
|
buf.WriteString(l.Content)
|
|
buf.WriteString("\n")
|
|
}
|
|
}
|
|
charsetLabel, err := charset.DetectEncoding(buf.Bytes())
|
|
if charsetLabel != "UTF-8" && err == nil {
|
|
encoding, _ := stdcharset.Lookup(charsetLabel)
|
|
if encoding != nil {
|
|
d := encoding.NewDecoder()
|
|
for _, sec := range f.Sections {
|
|
for _, l := range sec.Lines {
|
|
if c, _, err := transform.String(d, l.Content); err == nil {
|
|
l.Content = c
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return diff, nil
|
|
}
|
|
|
|
// GetDiffRange builds a Diff between two commits of a repository.
|
|
// passing the empty string as beforeCommitID returns a diff from the
|
|
// parent commit.
|
|
func GetDiffRange(repoPath, beforeCommitID, afterCommitID string, maxLines, maxLineCharacters, maxFiles int) (*Diff, error) {
|
|
return GetDiffRangeWithWhitespaceBehavior(repoPath, beforeCommitID, afterCommitID, maxLines, maxLineCharacters, maxFiles, "")
|
|
}
|
|
|
|
// GetDiffRangeWithWhitespaceBehavior builds a Diff between two commits of a repository.
|
|
// Passing the empty string as beforeCommitID returns a diff from the parent commit.
|
|
// The whitespaceBehavior is either an empty string or a git flag
|
|
func GetDiffRangeWithWhitespaceBehavior(repoPath, beforeCommitID, afterCommitID string, maxLines, maxLineCharacters, maxFiles int, whitespaceBehavior string) (*Diff, error) {
|
|
gitRepo, err := git.OpenRepository(repoPath)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer gitRepo.Close()
|
|
|
|
commit, err := gitRepo.GetCommit(afterCommitID)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
var cmd *exec.Cmd
|
|
if len(beforeCommitID) == 0 && commit.ParentCount() == 0 {
|
|
cmd = exec.Command(git.GitExecutable, "show", afterCommitID)
|
|
} else {
|
|
actualBeforeCommitID := beforeCommitID
|
|
if len(actualBeforeCommitID) == 0 {
|
|
parentCommit, _ := commit.Parent(0)
|
|
actualBeforeCommitID = parentCommit.ID.String()
|
|
}
|
|
diffArgs := []string{"diff", "-M"}
|
|
if len(whitespaceBehavior) != 0 {
|
|
diffArgs = append(diffArgs, whitespaceBehavior)
|
|
}
|
|
diffArgs = append(diffArgs, actualBeforeCommitID)
|
|
diffArgs = append(diffArgs, afterCommitID)
|
|
cmd = exec.Command(git.GitExecutable, diffArgs...)
|
|
}
|
|
cmd.Dir = repoPath
|
|
cmd.Stderr = os.Stderr
|
|
|
|
stdout, err := cmd.StdoutPipe()
|
|
if err != nil {
|
|
return nil, fmt.Errorf("StdoutPipe: %v", err)
|
|
}
|
|
|
|
if err = cmd.Start(); err != nil {
|
|
return nil, fmt.Errorf("Start: %v", err)
|
|
}
|
|
|
|
pid := process.GetManager().Add(fmt.Sprintf("GetDiffRange [repo_path: %s]", repoPath), cmd)
|
|
defer process.GetManager().Remove(pid)
|
|
|
|
diff, err := ParsePatch(maxLines, maxLineCharacters, maxFiles, stdout)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("ParsePatch: %v", err)
|
|
}
|
|
|
|
if err = cmd.Wait(); err != nil {
|
|
return nil, fmt.Errorf("Wait: %v", err)
|
|
}
|
|
|
|
return diff, nil
|
|
}
|
|
|
|
// RawDiffType type of a raw diff.
|
|
type RawDiffType string
|
|
|
|
// RawDiffType possible values.
|
|
const (
|
|
RawDiffNormal RawDiffType = "diff"
|
|
RawDiffPatch RawDiffType = "patch"
|
|
)
|
|
|
|
// GetRawDiff dumps diff results of repository in given commit ID to io.Writer.
|
|
// TODO: move this function to gogits/git-module
|
|
func GetRawDiff(repoPath, commitID string, diffType RawDiffType, writer io.Writer) error {
|
|
return GetRawDiffForFile(repoPath, "", commitID, diffType, "", writer)
|
|
}
|
|
|
|
// GetRawDiffForFile dumps diff results of file in given commit ID to io.Writer.
|
|
// TODO: move this function to gogits/git-module
|
|
func GetRawDiffForFile(repoPath, startCommit, endCommit string, diffType RawDiffType, file string, writer io.Writer) error {
|
|
repo, err := git.OpenRepository(repoPath)
|
|
if err != nil {
|
|
return fmt.Errorf("OpenRepository: %v", err)
|
|
}
|
|
defer repo.Close()
|
|
|
|
commit, err := repo.GetCommit(endCommit)
|
|
if err != nil {
|
|
return fmt.Errorf("GetCommit: %v", err)
|
|
}
|
|
fileArgs := make([]string, 0)
|
|
if len(file) > 0 {
|
|
fileArgs = append(fileArgs, "--", file)
|
|
}
|
|
var cmd *exec.Cmd
|
|
switch diffType {
|
|
case RawDiffNormal:
|
|
if len(startCommit) != 0 {
|
|
cmd = exec.Command(git.GitExecutable, append([]string{"diff", "-M", startCommit, endCommit}, fileArgs...)...)
|
|
} else if commit.ParentCount() == 0 {
|
|
cmd = exec.Command(git.GitExecutable, append([]string{"show", endCommit}, fileArgs...)...)
|
|
} else {
|
|
c, _ := commit.Parent(0)
|
|
cmd = exec.Command(git.GitExecutable, append([]string{"diff", "-M", c.ID.String(), endCommit}, fileArgs...)...)
|
|
}
|
|
case RawDiffPatch:
|
|
if len(startCommit) != 0 {
|
|
query := fmt.Sprintf("%s...%s", endCommit, startCommit)
|
|
cmd = exec.Command(git.GitExecutable, append([]string{"format-patch", "--no-signature", "--stdout", "--root", query}, fileArgs...)...)
|
|
} else if commit.ParentCount() == 0 {
|
|
cmd = exec.Command(git.GitExecutable, append([]string{"format-patch", "--no-signature", "--stdout", "--root", endCommit}, fileArgs...)...)
|
|
} else {
|
|
c, _ := commit.Parent(0)
|
|
query := fmt.Sprintf("%s...%s", endCommit, c.ID.String())
|
|
cmd = exec.Command(git.GitExecutable, append([]string{"format-patch", "--no-signature", "--stdout", query}, fileArgs...)...)
|
|
}
|
|
default:
|
|
return fmt.Errorf("invalid diffType: %s", diffType)
|
|
}
|
|
|
|
stderr := new(bytes.Buffer)
|
|
|
|
cmd.Dir = repoPath
|
|
cmd.Stdout = writer
|
|
cmd.Stderr = stderr
|
|
if err = cmd.Run(); err != nil {
|
|
return fmt.Errorf("Run: %v - %s", err, stderr)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// GetDiffCommit builds a Diff representing the given commitID.
|
|
func GetDiffCommit(repoPath, commitID string, maxLines, maxLineCharacters, maxFiles int) (*Diff, error) {
|
|
return GetDiffRange(repoPath, "", commitID, maxLines, maxLineCharacters, maxFiles)
|
|
}
|
|
|
|
// CommentAsDiff returns c.Patch as *Diff
|
|
func CommentAsDiff(c *models.Comment) (*Diff, error) {
|
|
diff, err := ParsePatch(setting.Git.MaxGitDiffLines,
|
|
setting.Git.MaxGitDiffLineCharacters, setting.Git.MaxGitDiffFiles, strings.NewReader(c.Patch))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if len(diff.Files) == 0 {
|
|
return nil, fmt.Errorf("no file found for comment ID: %d", c.ID)
|
|
}
|
|
secs := diff.Files[0].Sections
|
|
if len(secs) == 0 {
|
|
return nil, fmt.Errorf("no sections found for comment ID: %d", c.ID)
|
|
}
|
|
return diff, nil
|
|
}
|
|
|
|
// CommentMustAsDiff executes AsDiff and logs the error instead of returning
|
|
func CommentMustAsDiff(c *models.Comment) *Diff {
|
|
diff, err := CommentAsDiff(c)
|
|
if err != nil {
|
|
log.Warn("CommentMustAsDiff: %v", err)
|
|
}
|
|
return diff
|
|
}
|