mirror of
https://github.com/go-gitea/gitea
synced 2024-12-25 10:04:27 +00:00
551 lines
16 KiB
Go
551 lines
16 KiB
Go
// Copyright 2019 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package repo
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import (
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"bufio"
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"fmt"
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"html"
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"path"
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"path/filepath"
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"strings"
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"code.gitea.io/gitea/models"
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"code.gitea.io/gitea/modules/base"
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"code.gitea.io/gitea/modules/context"
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"code.gitea.io/gitea/modules/git"
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"code.gitea.io/gitea/modules/highlight"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/services/gitdiff"
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)
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const (
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tplCompare base.TplName = "repo/diff/compare"
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tplBlobExcerpt base.TplName = "repo/diff/blob_excerpt"
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)
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// setPathsCompareContext sets context data for source and raw paths
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func setPathsCompareContext(ctx *context.Context, base *git.Commit, head *git.Commit, headTarget string) {
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sourcePath := setting.AppSubURL + "/%s/src/commit/%s"
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rawPath := setting.AppSubURL + "/%s/raw/commit/%s"
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ctx.Data["SourcePath"] = fmt.Sprintf(sourcePath, headTarget, head.ID)
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ctx.Data["RawPath"] = fmt.Sprintf(rawPath, headTarget, head.ID)
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if base != nil {
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baseTarget := path.Join(ctx.Repo.Owner.Name, ctx.Repo.Repository.Name)
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ctx.Data["BeforeSourcePath"] = fmt.Sprintf(sourcePath, baseTarget, base.ID)
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ctx.Data["BeforeRawPath"] = fmt.Sprintf(rawPath, baseTarget, base.ID)
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}
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}
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// setImageCompareContext sets context data that is required by image compare template
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func setImageCompareContext(ctx *context.Context, base *git.Commit, head *git.Commit) {
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ctx.Data["IsImageFileInHead"] = head.IsImageFile
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ctx.Data["IsImageFileInBase"] = base.IsImageFile
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ctx.Data["ImageInfoBase"] = func(name string) *git.ImageMetaData {
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if base == nil {
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return nil
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}
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result, err := base.ImageInfo(name)
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if err != nil {
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log.Error("ImageInfo failed: %v", err)
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return nil
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}
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return result
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}
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ctx.Data["ImageInfo"] = func(name string) *git.ImageMetaData {
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result, err := head.ImageInfo(name)
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if err != nil {
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log.Error("ImageInfo failed: %v", err)
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return nil
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}
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return result
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}
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}
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// ParseCompareInfo parse compare info between two commit for preparing comparing references
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func ParseCompareInfo(ctx *context.Context) (*models.User, *models.Repository, *git.Repository, *git.CompareInfo, string, string) {
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baseRepo := ctx.Repo.Repository
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// Get compared branches information
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// format: <base branch>...[<head repo>:]<head branch>
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// base<-head: master...head:feature
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// same repo: master...feature
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var (
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headUser *models.User
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headBranch string
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isSameRepo bool
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infoPath string
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err error
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)
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infoPath = ctx.Params("*")
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infos := strings.Split(infoPath, "...")
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if len(infos) != 2 {
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log.Trace("ParseCompareInfo[%d]: not enough compared branches information %s", baseRepo.ID, infos)
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ctx.NotFound("CompareAndPullRequest", nil)
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return nil, nil, nil, nil, "", ""
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}
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baseBranch := infos[0]
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ctx.Data["BaseBranch"] = baseBranch
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// If there is no head repository, it means compare between same repository.
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headInfos := strings.Split(infos[1], ":")
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if len(headInfos) == 1 {
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isSameRepo = true
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headUser = ctx.Repo.Owner
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headBranch = headInfos[0]
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} else if len(headInfos) == 2 {
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headUser, err = models.GetUserByName(headInfos[0])
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if err != nil {
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if models.IsErrUserNotExist(err) {
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ctx.NotFound("GetUserByName", nil)
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} else {
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ctx.ServerError("GetUserByName", err)
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}
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return nil, nil, nil, nil, "", ""
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}
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headBranch = headInfos[1]
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isSameRepo = headUser.ID == ctx.Repo.Owner.ID
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} else {
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ctx.NotFound("CompareAndPullRequest", nil)
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return nil, nil, nil, nil, "", ""
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}
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ctx.Data["HeadUser"] = headUser
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ctx.Data["HeadBranch"] = headBranch
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ctx.Repo.PullRequest.SameRepo = isSameRepo
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// Check if base branch is valid.
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baseIsCommit := ctx.Repo.GitRepo.IsCommitExist(baseBranch)
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baseIsBranch := ctx.Repo.GitRepo.IsBranchExist(baseBranch)
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baseIsTag := ctx.Repo.GitRepo.IsTagExist(baseBranch)
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if !baseIsCommit && !baseIsBranch && !baseIsTag {
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// Check if baseBranch is short sha commit hash
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if baseCommit, _ := ctx.Repo.GitRepo.GetCommit(baseBranch); baseCommit != nil {
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baseBranch = baseCommit.ID.String()
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ctx.Data["BaseBranch"] = baseBranch
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baseIsCommit = true
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} else {
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ctx.NotFound("IsRefExist", nil)
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return nil, nil, nil, nil, "", ""
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}
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}
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ctx.Data["BaseIsCommit"] = baseIsCommit
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ctx.Data["BaseIsBranch"] = baseIsBranch
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ctx.Data["BaseIsTag"] = baseIsTag
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// Check if current user has fork of repository or in the same repository.
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headRepo, has := models.HasForkedRepo(headUser.ID, baseRepo.ID)
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if !has && !isSameRepo {
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ctx.Data["PageIsComparePull"] = false
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}
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var headGitRepo *git.Repository
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if isSameRepo {
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headRepo = ctx.Repo.Repository
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headGitRepo = ctx.Repo.GitRepo
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ctx.Data["BaseName"] = headUser.Name
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} else {
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headGitRepo, err = git.OpenRepository(models.RepoPath(headUser.Name, headRepo.Name))
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ctx.Data["BaseName"] = baseRepo.OwnerName
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if err != nil {
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ctx.ServerError("OpenRepository", err)
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return nil, nil, nil, nil, "", ""
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}
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defer headGitRepo.Close()
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}
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// user should have permission to read baseRepo's codes and pulls, NOT headRepo's
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permBase, err := models.GetUserRepoPermission(baseRepo, ctx.User)
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if err != nil {
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ctx.ServerError("GetUserRepoPermission", err)
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return nil, nil, nil, nil, "", ""
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}
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if !permBase.CanRead(models.UnitTypeCode) {
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if log.IsTrace() {
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log.Trace("Permission Denied: User: %-v cannot read code in Repo: %-v\nUser in baseRepo has Permissions: %-+v",
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ctx.User,
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baseRepo,
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permBase)
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}
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ctx.NotFound("ParseCompareInfo", nil)
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return nil, nil, nil, nil, "", ""
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}
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if !isSameRepo {
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// user should have permission to read headrepo's codes
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permHead, err := models.GetUserRepoPermission(headRepo, ctx.User)
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if err != nil {
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ctx.ServerError("GetUserRepoPermission", err)
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return nil, nil, nil, nil, "", ""
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}
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if !permHead.CanRead(models.UnitTypeCode) {
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if log.IsTrace() {
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log.Trace("Permission Denied: User: %-v cannot read code in Repo: %-v\nUser in headRepo has Permissions: %-+v",
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ctx.User,
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headRepo,
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permHead)
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}
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ctx.NotFound("ParseCompareInfo", nil)
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return nil, nil, nil, nil, "", ""
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}
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}
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// Check if head branch is valid.
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headIsCommit := headGitRepo.IsCommitExist(headBranch)
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headIsBranch := headGitRepo.IsBranchExist(headBranch)
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headIsTag := headGitRepo.IsTagExist(headBranch)
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if !headIsCommit && !headIsBranch && !headIsTag {
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// Check if headBranch is short sha commit hash
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if headCommit, _ := headGitRepo.GetCommit(headBranch); headCommit != nil {
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headBranch = headCommit.ID.String()
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ctx.Data["HeadBranch"] = headBranch
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headIsCommit = true
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} else {
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ctx.NotFound("IsRefExist", nil)
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return nil, nil, nil, nil, "", ""
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}
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}
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ctx.Data["HeadIsCommit"] = headIsCommit
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ctx.Data["HeadIsBranch"] = headIsBranch
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ctx.Data["HeadIsTag"] = headIsTag
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// Treat as pull request if both references are branches
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if ctx.Data["PageIsComparePull"] == nil {
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ctx.Data["PageIsComparePull"] = headIsBranch && baseIsBranch
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}
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if ctx.Data["PageIsComparePull"] == true && !permBase.CanReadIssuesOrPulls(true) {
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if log.IsTrace() {
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log.Trace("Permission Denied: User: %-v cannot create/read pull requests in Repo: %-v\nUser in baseRepo has Permissions: %-+v",
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ctx.User,
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baseRepo,
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permBase)
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}
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ctx.NotFound("ParseCompareInfo", nil)
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return nil, nil, nil, nil, "", ""
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}
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compareInfo, err := headGitRepo.GetCompareInfo(baseRepo.RepoPath(), baseBranch, headBranch)
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if err != nil {
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ctx.ServerError("GetCompareInfo", err)
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return nil, nil, nil, nil, "", ""
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}
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ctx.Data["BeforeCommitID"] = compareInfo.MergeBase
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return headUser, headRepo, headGitRepo, compareInfo, baseBranch, headBranch
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}
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// PrepareCompareDiff renders compare diff page
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func PrepareCompareDiff(
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ctx *context.Context,
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headUser *models.User,
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headRepo *models.Repository,
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headGitRepo *git.Repository,
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compareInfo *git.CompareInfo,
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baseBranch, headBranch string) bool {
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var (
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repo = ctx.Repo.Repository
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err error
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title string
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)
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// Get diff information.
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ctx.Data["CommitRepoLink"] = headRepo.Link()
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headCommitID := headBranch
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if ctx.Data["HeadIsCommit"] == false {
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if ctx.Data["HeadIsTag"] == true {
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headCommitID, err = headGitRepo.GetTagCommitID(headBranch)
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} else {
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headCommitID, err = headGitRepo.GetBranchCommitID(headBranch)
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}
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if err != nil {
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ctx.ServerError("GetRefCommitID", err)
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return false
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}
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}
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ctx.Data["AfterCommitID"] = headCommitID
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if headCommitID == compareInfo.MergeBase {
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ctx.Data["IsNothingToCompare"] = true
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return true
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}
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diff, err := gitdiff.GetDiffRange(models.RepoPath(headUser.Name, headRepo.Name),
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compareInfo.MergeBase, headCommitID, setting.Git.MaxGitDiffLines,
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setting.Git.MaxGitDiffLineCharacters, setting.Git.MaxGitDiffFiles)
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if err != nil {
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ctx.ServerError("GetDiffRange", err)
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return false
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}
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ctx.Data["Diff"] = diff
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ctx.Data["DiffNotAvailable"] = diff.NumFiles() == 0
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headCommit, err := headGitRepo.GetCommit(headCommitID)
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if err != nil {
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ctx.ServerError("GetCommit", err)
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return false
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}
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baseGitRepo := ctx.Repo.GitRepo
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baseCommitID := baseBranch
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if ctx.Data["BaseIsCommit"] == false {
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if ctx.Data["BaseIsTag"] == true {
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baseCommitID, err = baseGitRepo.GetTagCommitID(baseBranch)
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} else {
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baseCommitID, err = baseGitRepo.GetBranchCommitID(baseBranch)
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}
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if err != nil {
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ctx.ServerError("GetRefCommitID", err)
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return false
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}
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}
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baseCommit, err := baseGitRepo.GetCommit(baseCommitID)
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if err != nil {
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ctx.ServerError("GetCommit", err)
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return false
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}
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compareInfo.Commits = models.ValidateCommitsWithEmails(compareInfo.Commits)
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compareInfo.Commits = models.ParseCommitsWithSignature(compareInfo.Commits)
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compareInfo.Commits = models.ParseCommitsWithStatus(compareInfo.Commits, headRepo)
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ctx.Data["Commits"] = compareInfo.Commits
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ctx.Data["CommitCount"] = compareInfo.Commits.Len()
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if ctx.Data["CommitCount"] == 0 {
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ctx.Data["PageIsComparePull"] = false
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}
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if compareInfo.Commits.Len() == 1 {
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c := compareInfo.Commits.Front().Value.(models.SignCommitWithStatuses)
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title = strings.TrimSpace(c.UserCommit.Summary())
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body := strings.Split(strings.TrimSpace(c.UserCommit.Message()), "\n")
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if len(body) > 1 {
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ctx.Data["content"] = strings.Join(body[1:], "\n")
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}
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} else {
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title = headBranch
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}
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ctx.Data["title"] = title
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ctx.Data["Username"] = headUser.Name
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ctx.Data["Reponame"] = headRepo.Name
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setImageCompareContext(ctx, baseCommit, headCommit)
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headTarget := path.Join(headUser.Name, repo.Name)
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setPathsCompareContext(ctx, baseCommit, headCommit, headTarget)
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return false
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}
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// parseBaseRepoInfo parse base repository if current repo is forked.
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// The "base" here means the repository where current repo forks from,
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// not the repository fetch from current URL.
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func parseBaseRepoInfo(ctx *context.Context, repo *models.Repository) error {
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if !repo.IsFork {
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return nil
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}
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if err := repo.GetBaseRepo(); err != nil {
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return err
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}
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if err := repo.BaseRepo.GetOwnerName(); err != nil {
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return err
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}
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baseGitRepo, err := git.OpenRepository(models.RepoPath(repo.BaseRepo.OwnerName, repo.BaseRepo.Name))
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if err != nil {
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return err
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}
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defer baseGitRepo.Close()
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ctx.Data["BaseRepoBranches"], err = baseGitRepo.GetBranches()
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if err != nil {
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return err
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}
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return nil
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}
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// CompareDiff show different from one commit to another commit
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func CompareDiff(ctx *context.Context) {
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headUser, headRepo, headGitRepo, compareInfo, baseBranch, headBranch := ParseCompareInfo(ctx)
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if ctx.Written() {
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return
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}
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defer headGitRepo.Close()
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var err error
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if err = parseBaseRepoInfo(ctx, headRepo); err != nil {
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ctx.ServerError("parseBaseRepoInfo", err)
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return
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}
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nothingToCompare := PrepareCompareDiff(ctx, headUser, headRepo, headGitRepo, compareInfo, baseBranch, headBranch)
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if ctx.Written() {
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return
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}
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if ctx.Data["PageIsComparePull"] == true {
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headBranches, err := headGitRepo.GetBranches()
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if err != nil {
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ctx.ServerError("GetBranches", err)
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return
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}
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ctx.Data["HeadBranches"] = headBranches
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pr, err := models.GetUnmergedPullRequest(headRepo.ID, ctx.Repo.Repository.ID, headBranch, baseBranch)
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if err != nil {
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if !models.IsErrPullRequestNotExist(err) {
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ctx.ServerError("GetUnmergedPullRequest", err)
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return
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}
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} else {
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ctx.Data["HasPullRequest"] = true
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ctx.Data["PullRequest"] = pr
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ctx.HTML(200, tplCompareDiff)
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return
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}
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if !nothingToCompare {
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// Setup information for new form.
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RetrieveRepoMetas(ctx, ctx.Repo.Repository, true)
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if ctx.Written() {
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return
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}
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}
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}
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beforeCommitID := ctx.Data["BeforeCommitID"].(string)
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afterCommitID := ctx.Data["AfterCommitID"].(string)
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if ctx.Data["Assignees"], err = ctx.Repo.Repository.GetAssignees(); err != nil {
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ctx.ServerError("GetAssignees", err)
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return
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}
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ctx.Data["Title"] = "Comparing " + base.ShortSha(beforeCommitID) + "..." + base.ShortSha(afterCommitID)
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ctx.Data["IsRepoToolbarCommits"] = true
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ctx.Data["IsDiffCompare"] = true
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ctx.Data["RequireHighlightJS"] = true
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ctx.Data["RequireTribute"] = true
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ctx.Data["RequireSimpleMDE"] = true
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ctx.Data["PullRequestWorkInProgressPrefixes"] = setting.Repository.PullRequest.WorkInProgressPrefixes
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setTemplateIfExists(ctx, pullRequestTemplateKey, pullRequestTemplateCandidates)
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renderAttachmentSettings(ctx)
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ctx.HTML(200, tplCompare)
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}
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// ExcerptBlob render blob excerpt contents
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func ExcerptBlob(ctx *context.Context) {
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commitID := ctx.Params("sha")
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lastLeft := ctx.QueryInt("last_left")
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lastRight := ctx.QueryInt("last_right")
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idxLeft := ctx.QueryInt("left")
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idxRight := ctx.QueryInt("right")
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leftHunkSize := ctx.QueryInt("left_hunk_size")
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rightHunkSize := ctx.QueryInt("right_hunk_size")
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anchor := ctx.Query("anchor")
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direction := ctx.Query("direction")
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filePath := ctx.Query("path")
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gitRepo := ctx.Repo.GitRepo
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chunkSize := gitdiff.BlobExceprtChunkSize
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commit, err := gitRepo.GetCommit(commitID)
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if err != nil {
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ctx.Error(500, "GetCommit")
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return
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}
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section := &gitdiff.DiffSection{
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Name: filePath,
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}
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if direction == "up" && (idxLeft-lastLeft) > chunkSize {
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idxLeft -= chunkSize
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idxRight -= chunkSize
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leftHunkSize += chunkSize
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rightHunkSize += chunkSize
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section.Lines, err = getExcerptLines(commit, filePath, idxLeft-1, idxRight-1, chunkSize)
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} else if direction == "down" && (idxLeft-lastLeft) > chunkSize {
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section.Lines, err = getExcerptLines(commit, filePath, lastLeft, lastRight, chunkSize)
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lastLeft += chunkSize
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lastRight += chunkSize
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} else {
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section.Lines, err = getExcerptLines(commit, filePath, lastLeft, lastRight, idxRight-lastRight-1)
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leftHunkSize = 0
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rightHunkSize = 0
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idxLeft = lastLeft
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idxRight = lastRight
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}
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if err != nil {
|
|
ctx.Error(500, "getExcerptLines")
|
|
return
|
|
}
|
|
if idxRight > lastRight {
|
|
lineText := " "
|
|
if rightHunkSize > 0 || leftHunkSize > 0 {
|
|
lineText = fmt.Sprintf("@@ -%d,%d +%d,%d @@\n", idxLeft, leftHunkSize, idxRight, rightHunkSize)
|
|
}
|
|
lineText = html.EscapeString(lineText)
|
|
lineSection := &gitdiff.DiffLine{
|
|
Type: gitdiff.DiffLineSection,
|
|
Content: lineText,
|
|
SectionInfo: &gitdiff.DiffLineSectionInfo{
|
|
Path: filePath,
|
|
LastLeftIdx: lastLeft,
|
|
LastRightIdx: lastRight,
|
|
LeftIdx: idxLeft,
|
|
RightIdx: idxRight,
|
|
LeftHunkSize: leftHunkSize,
|
|
RightHunkSize: rightHunkSize,
|
|
}}
|
|
if direction == "up" {
|
|
section.Lines = append([]*gitdiff.DiffLine{lineSection}, section.Lines...)
|
|
} else if direction == "down" {
|
|
section.Lines = append(section.Lines, lineSection)
|
|
}
|
|
}
|
|
ctx.Data["section"] = section
|
|
ctx.Data["fileName"] = filePath
|
|
ctx.Data["highlightClass"] = highlight.FileNameToHighlightClass(filepath.Base(filePath))
|
|
ctx.Data["AfterCommitID"] = commitID
|
|
ctx.Data["Anchor"] = anchor
|
|
ctx.HTML(200, tplBlobExcerpt)
|
|
}
|
|
|
|
func getExcerptLines(commit *git.Commit, filePath string, idxLeft int, idxRight int, chunkSize int) ([]*gitdiff.DiffLine, error) {
|
|
blob, err := commit.Tree.GetBlobByPath(filePath)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
reader, err := blob.DataAsync()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer reader.Close()
|
|
scanner := bufio.NewScanner(reader)
|
|
var diffLines []*gitdiff.DiffLine
|
|
for line := 0; line < idxRight+chunkSize; line++ {
|
|
if ok := scanner.Scan(); !ok {
|
|
break
|
|
}
|
|
if line < idxRight {
|
|
continue
|
|
}
|
|
lineText := scanner.Text()
|
|
diffLine := &gitdiff.DiffLine{
|
|
LeftIdx: idxLeft + (line - idxRight) + 1,
|
|
RightIdx: line + 1,
|
|
Type: gitdiff.DiffLinePlain,
|
|
Content: " " + lineText,
|
|
}
|
|
diffLines = append(diffLines, diffLine)
|
|
}
|
|
return diffLines, nil
|
|
}
|