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Allow compare page to look up base, head, own-fork, forkbase-of-head (#11327)

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* Allow compare page to look up base, head, own-fork, forkbase-of-head

Signed-off-by: Andrew Thornton <art27@cantab.net>

* as per @guillep2k

Signed-off-by: Andrew Thornton <art27@cantab.net>

* Update routers/repo/compare.go

* as per @guillep2k

Signed-off-by: Andrew Thornton <art27@cantab.net>

* Rationalise the names a little

Signed-off-by: Andrew Thornton <art27@cantab.net>

* Rationalise the names a little (2)

Signed-off-by: Andrew Thornton <art27@cantab.net>

* Fix 500 with fork of fork

Signed-off-by: Andrew Thornton <art27@cantab.net>

* Prevent 500 on compare different trees

Signed-off-by: Andrew Thornton <art27@cantab.net>

* dotdotdot is perfectly valid in both usernames and repo names

Signed-off-by: Andrew Thornton <art27@cantab.net>

* ensure we can set the head and base repos too

Signed-off-by: Andrew Thornton <art27@cantab.net>

* ensure we can set the head and base repos too (2)

Signed-off-by: Andrew Thornton <art27@cantab.net>

* fix lint

Signed-off-by: Andrew Thornton <art27@cantab.net>

* only set headRepo == baseRepo if isSameRepo

Signed-off-by: Andrew Thornton <art27@cantab.net>
This commit is contained in:
zeripath
2020-05-12 06:52:46 +01:00
committed by GitHub
parent a4c7ad99e5
commit 0198bbedc1
4 changed files with 214 additions and 53 deletions
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4
modules/git/commit.go
View File

@@ -529,10 +529,6 @@ func GetCommitFileStatus(repoPath, commitID string) (*CommitFileStatus, error) {
// GetFullCommitID returns full length (40) of commit ID by given short SHA in a repository.
func GetFullCommitID(repoPath, shortID string) (string, error) {
if len(shortID) >= 40 {
return shortID, nil
}
commitID, err := NewCommand("rev-parse", shortID).RunInDir(repoPath)
if err != nil {
if strings.Contains(err.Error(), "exit status 128") {

1
modules/git/repo_compare.go
View File

@@ -89,7 +89,6 @@ func (repo *Repository) GetCompareInfo(basePath, baseBranch, headBranch string)
return nil, err
}
compareInfo.NumFiles = len(strings.Split(stdout, "\n")) - 1
return compareInfo, nil
}

227
routers/repo/compare.go
View File

@@ -71,25 +71,45 @@ func ParseCompareInfo(ctx *context.Context) (*models.User, *models.Repository, *
baseRepo := ctx.Repo.Repository
// Get compared branches information
// A full compare url is of the form:
//
// 1. /{:baseOwner}/{:baseRepoName}/compare/{:baseBranch}...{:headBranch}
// 2. /{:baseOwner}/{:baseRepoName}/compare/{:baseBranch}...{:headOwner}:{:headBranch}
// 3. /{:baseOwner}/{:baseRepoName}/compare/{:baseBranch}...{:headOwner}/{:headRepoName}:{:headBranch}
//
// Here we obtain the infoPath "{:baseBranch}...[{:headOwner}/{:headRepoName}:]{:headBranch}" as ctx.Params("*")
// with the :baseRepo in ctx.Repo.
//
// Note: Generally :headRepoName is not provided here - we are only passed :headOwner.
//
// How do we determine the :headRepo?
//
// 1. If :headOwner is not set then the :headRepo = :baseRepo
// 2. If :headOwner is set - then look for the fork of :baseRepo owned by :headOwner
// 3. But... :baseRepo could be a fork of :headOwner's repo - so check that
// 4. Now, :baseRepo and :headRepos could be forks of the same repo - so check that
//
// format: <base branch>...[<head repo>:]<head branch>
// base<-head: master...head:feature
// same repo: master...feature
var (
headUser *models.User
headRepo *models.Repository
headBranch string
isSameRepo bool
infoPath string
err error
)
infoPath = ctx.Params("*")
infos := strings.Split(infoPath, "...")
infos := strings.SplitN(infoPath, "...", 2)
if len(infos) != 2 {
log.Trace("ParseCompareInfo[%d]: not enough compared branches information %s", baseRepo.ID, infos)
ctx.NotFound("CompareAndPullRequest", nil)
return nil, nil, nil, nil, "", ""
}
ctx.Data["BaseName"] = baseRepo.OwnerName
baseBranch := infos[0]
ctx.Data["BaseBranch"] = baseBranch
@@ -101,17 +121,44 @@ func ParseCompareInfo(ctx *context.Context) (*models.User, *models.Repository, *
headBranch = headInfos[0]
} else if len(headInfos) == 2 {
headUser, err = models.GetUserByName(headInfos[0])
if err != nil {
if models.IsErrUserNotExist(err) {
ctx.NotFound("GetUserByName", nil)
} else {
ctx.ServerError("GetUserByName", err)
headInfosSplit := strings.Split(headInfos[0], "/")
if len(headInfosSplit) == 1 {
headUser, err = models.GetUserByName(headInfos[0])
if err != nil {
if models.IsErrUserNotExist(err) {
ctx.NotFound("GetUserByName", nil)
} else {
ctx.ServerError("GetUserByName", err)
}
return nil, nil, nil, nil, "", ""
}
return nil, nil, nil, nil, "", ""
headBranch = headInfos[1]
isSameRepo = headUser.ID == ctx.Repo.Owner.ID
if isSameRepo {
headRepo = baseRepo
}
} else {
headRepo, err = models.GetRepositoryByOwnerAndName(headInfosSplit[0], headInfosSplit[1])
if err != nil {
if models.IsErrRepoNotExist(err) {
ctx.NotFound("GetRepositoryByOwnerAndName", nil)
} else {
ctx.ServerError("GetRepositoryByOwnerAndName", err)
}
return nil, nil, nil, nil, "", ""
}
if err := headRepo.GetOwner(); err != nil {
if models.IsErrUserNotExist(err) {
ctx.NotFound("GetUserByName", nil)
} else {
ctx.ServerError("GetUserByName", err)
}
return nil, nil, nil, nil, "", ""
}
headBranch = headInfos[1]
headUser = headRepo.Owner
isSameRepo = headRepo.ID == ctx.Repo.Repository.ID
}
headBranch = headInfos[1]
isSameRepo = headUser.ID == ctx.Repo.Owner.ID
} else {
ctx.NotFound("CompareAndPullRequest", nil)
return nil, nil, nil, nil, "", ""
@@ -139,20 +186,80 @@ func ParseCompareInfo(ctx *context.Context) (*models.User, *models.Repository, *
ctx.Data["BaseIsBranch"] = baseIsBranch
ctx.Data["BaseIsTag"] = baseIsTag
// Check if current user has fork of repository or in the same repository.
headRepo, has := models.HasForkedRepo(headUser.ID, baseRepo.ID)
if !has && !isSameRepo {
// Now we have the repository that represents the base
// The current base and head repositories and branches may not
// actually be the intended branches that the user wants to
// create a pull-request from - but also determining the head
// repo is difficult.
// We will want therefore to offer a few repositories to set as
// our base and head
// 1. First if the baseRepo is a fork get the "RootRepo" it was
// forked from
var rootRepo *models.Repository
if baseRepo.IsFork {
err = baseRepo.GetBaseRepo()
if err != nil {
if !models.IsErrRepoNotExist(err) {
ctx.ServerError("Unable to find root repo", err)
return nil, nil, nil, nil, "", ""
}
} else {
rootRepo = baseRepo.BaseRepo
}
}
// 2. Now if the current user is not the owner of the baseRepo,
// check if they have a fork of the base repo and offer that as
// "OwnForkRepo"
var ownForkRepo *models.Repository
if baseRepo.OwnerID != ctx.User.ID {
repo, has := models.HasForkedRepo(ctx.User.ID, baseRepo.ID)
if has {
ownForkRepo = repo
ctx.Data["OwnForkRepo"] = ownForkRepo
}
}
has := headRepo != nil
// 3. If the base is a forked from "RootRepo" and the owner of
// the "RootRepo" is the :headUser - set headRepo to that
if !has && rootRepo != nil && rootRepo.OwnerID == headUser.ID {
headRepo = rootRepo
has = true
}
// 4. If the ctx.User has their own fork of the baseRepo and the headUser is the ctx.User
// set the headRepo to the ownFork
if !has && ownForkRepo != nil && ownForkRepo.OwnerID == headUser.ID {
headRepo = ownForkRepo
has = true
}
// 5. If the headOwner has a fork of the baseRepo - use that
if !has {
headRepo, has = models.HasForkedRepo(headUser.ID, baseRepo.ID)
}
// 6. If the baseRepo is a fork and the headUser has a fork of that use that
if !has && baseRepo.IsFork {
headRepo, has = models.HasForkedRepo(headUser.ID, baseRepo.ForkID)
}
// 7. Otherwise if we're not the same repo and haven't found a repo give up
if !isSameRepo && !has {
ctx.Data["PageIsComparePull"] = false
}
// 8. Finally open the git repo
var headGitRepo *git.Repository
if isSameRepo {
headRepo = ctx.Repo.Repository
headGitRepo = ctx.Repo.GitRepo
ctx.Data["BaseName"] = headUser.Name
} else {
headGitRepo, err = git.OpenRepository(models.RepoPath(headUser.Name, headRepo.Name))
ctx.Data["BaseName"] = baseRepo.OwnerName
} else if has {
headGitRepo, err = git.OpenRepository(headRepo.RepoPath())
if err != nil {
ctx.ServerError("OpenRepository", err)
return nil, nil, nil, nil, "", ""
@@ -160,7 +267,11 @@ func ParseCompareInfo(ctx *context.Context) (*models.User, *models.Repository, *
defer headGitRepo.Close()
}
// user should have permission to read baseRepo's codes and pulls, NOT headRepo's
ctx.Data["HeadRepo"] = headRepo
// Now we need to assert that the ctx.User has permission to read
// the baseRepo's code and pulls
// (NOT headRepo's)
permBase, err := models.GetUserRepoPermission(baseRepo, ctx.User)
if err != nil {
ctx.ServerError("GetUserRepoPermission", err)
@@ -177,8 +288,9 @@ func ParseCompareInfo(ctx *context.Context) (*models.User, *models.Repository, *
return nil, nil, nil, nil, "", ""
}
// If we're not merging from the same repo:
if !isSameRepo {
// user should have permission to read headrepo's codes
// Assert ctx.User has permission to read headRepo's codes
permHead, err := models.GetUserRepoPermission(headRepo, ctx.User)
if err != nil {
ctx.ServerError("GetUserRepoPermission", err)
@@ -196,6 +308,44 @@ func ParseCompareInfo(ctx *context.Context) (*models.User, *models.Repository, *
}
}
// If we have a rootRepo and it's different from:
// 1. the computed base
// 2. the computed head
// then get the branches of it
if rootRepo != nil &&
rootRepo.ID != headRepo.ID &&
rootRepo.ID != baseRepo.ID {
perm, branches, err := getBranchesForRepo(ctx.User, rootRepo)
if err != nil {
ctx.ServerError("GetBranchesForRepo", err)
return nil, nil, nil, nil, "", ""
}
if perm {
ctx.Data["RootRepo"] = rootRepo
ctx.Data["RootRepoBranches"] = branches
}
}
// If we have a ownForkRepo and it's different from:
// 1. The computed base
// 2. The computed hea
// 3. The rootRepo (if we have one)
// then get the branches from it.
if ownForkRepo != nil &&
ownForkRepo.ID != headRepo.ID &&
ownForkRepo.ID != baseRepo.ID &&
(rootRepo == nil || ownForkRepo.ID != rootRepo.ID) {
perm, branches, err := getBranchesForRepo(ctx.User, ownForkRepo)
if err != nil {
ctx.ServerError("GetBranchesForRepo", err)
return nil, nil, nil, nil, "", ""
}
if perm {
ctx.Data["OwnForkRepo"] = ownForkRepo
ctx.Data["OwnForkRepoBranches"] = branches
}
}
// Check if head branch is valid.
headIsCommit := headGitRepo.IsCommitExist(headBranch)
headIsBranch := headGitRepo.IsBranchExist(headBranch)
@@ -343,28 +493,25 @@ func PrepareCompareDiff(
return false
}
// parseBaseRepoInfo parse base repository if current repo is forked.
// The "base" here means the repository where current repo forks from,
// not the repository fetch from current URL.
func parseBaseRepoInfo(ctx *context.Context, repo *models.Repository) error {
if !repo.IsFork {
return nil
}
if err := repo.GetBaseRepo(); err != nil {
return err
}
baseGitRepo, err := git.OpenRepository(repo.BaseRepo.RepoPath())
func getBranchesForRepo(user *models.User, repo *models.Repository) (bool, []string, error) {
perm, err := models.GetUserRepoPermission(repo, user)
if err != nil {
return err
return false, nil, err
}
defer baseGitRepo.Close()
ctx.Data["BaseRepoBranches"], err = baseGitRepo.GetBranches()
if !perm.CanRead(models.UnitTypeCode) {
return false, nil, nil
}
gitRepo, err := git.OpenRepository(repo.RepoPath())
if err != nil {
return err
return false, nil, err
}
return nil
defer gitRepo.Close()
branches, err := gitRepo.GetBranches()
if err != nil {
return false, nil, err
}
return true, branches, nil
}
// CompareDiff show different from one commit to another commit
@@ -375,12 +522,6 @@ func CompareDiff(ctx *context.Context) {
}
defer headGitRepo.Close()
var err error
if err = parseBaseRepoInfo(ctx, headRepo); err != nil {
ctx.ServerError("parseBaseRepoInfo", err)
return
}
nothingToCompare := PrepareCompareDiff(ctx, headUser, headRepo, headGitRepo, compareInfo, baseBranch, headBranch)
if ctx.Written() {
return

35
templates/repo/diff/compare.tmpl
View File

@@ -26,11 +26,21 @@
</div>
<div class="scrolling menu">
{{range .Branches}}
<div class="item {{if eq $.BaseBranch .}}selected{{end}}" data-url="{{$.RepoLink}}/compare/{{EscapePound .}}...{{if not $.PullRequestCtx.SameRepo}}{{$.HeadUser.Name}}:{{end}}{{EscapePound $.HeadBranch}}">{{$.BaseName}}:{{.}}</div>
<div class="item {{if eq $.BaseBranch .}}selected{{end}}" data-url="{{$.RepoLink}}/compare/{{EscapePound .}}...{{if not $.PullRequestCtx.SameRepo}}{{$.HeadUser.Name}}/{{$.HeadRepo.Name}}:{{end}}{{EscapePound $.HeadBranch}}">{{$.BaseName}}:{{.}}</div>
{{end}}
{{if .Repository.IsFork}}
{{range .BaseRepoBranches}}
<div class="item" data-url="{{$.PullRequestCtx.BaseRepo.Link}}/compare/{{EscapePound .}}...{{$.HeadUser.Name}}:{{EscapePound $.HeadBranch}}">{{$.PullRequestCtx.BaseRepo.OwnerName}}:{{.}}</div>
{{if not .PullRequestCtx.SameRepo}}
{{range .HeadBranches}}
<div class="item" data-url="{{$.HeadRepo.Link}}/compare/{{EscapePound .}}...{{$.HeadUser.Name}}/{{$.HeadRepo.Name}}:{{EscapePound $.HeadBranch}}">{{$.HeadUser.Name}}:{{.}}</div>
{{end}}
{{end}}
{{if .OwnForkRepo}}
{{range .OwnForkRepoBranches}}
<div class="item" data-url="{{$.OwnForkRepo.Link}}/compare/{{EscapePound .}}...{{$.HeadUser.Name}}/{{$.HeadRepo.Name}}:{{EscapePound $.HeadBranch}}">{{$.OwnForkRepo.OwnerName}}:{{.}}</div>
{{end}}
{{end}}
{{if .RootRepo}}
{{range .RootRepoBranches}}
<div class="item" data-url="{{$.RootRepo.Link}}/compare/{{EscapePound .}}...{{$.HeadUser.Name}}/{{$.HeadRepo.Name}}:{{EscapePound $.HeadBranch}}">{{$.RootRepo.OwnerName}}:{{.}}</div>
{{end}}
{{end}}
</div>
@@ -49,7 +59,22 @@
</div>
<div class="scrolling menu">
{{range .HeadBranches}}
<div class="{{if eq $.HeadBranch .}}selected{{end}} item" data-url="{{$.RepoLink}}/compare/{{EscapePound $.BaseBranch}}...{{if not $.PullRequestCtx.SameRepo}}{{$.HeadUser.Name}}:{{end}}{{EscapePound .}}">{{$.HeadUser.Name}}:{{.}}</div>
<div class="{{if eq $.HeadBranch .}}selected{{end}} item" data-url="{{$.RepoLink}}/compare/{{EscapePound $.BaseBranch}}...{{if not $.PullRequestCtx.SameRepo}}{{$.HeadUser.Name}}/{{$.HeadRepo.Name}}:{{end}}{{EscapePound .}}">{{$.HeadUser.Name}}:{{.}}</div>
{{end}}
{{if not .PullRequestCtx.SameRepo}}
{{range .Branches}}
<div class="item" data-url="{{$.RepoLink}}/compare/{{EscapePound $.BaseBranch}}...{{$.BaseName}}/{{$.Repository.Name}}:{{EscapePound .}}">{{$.BaseName}}:{{.}}</div>
{{end}}
{{end}}
{{if .OwnForkRepo}}
{{range .OwnForkRepoBranches}}
<div class="item" data-url="{{$.RepoLink}}/compare/{{EscapePound $.BaseBranch}}...{{$.OwnForkRepo.OwnerName}}/{{$.OwnForkRepo.Name}}:{{EscapePound .}}">{{$.OwnForkRepo.OwnerName}}:{{.}}</div>
{{end}}
{{end}}
{{if .RootRepo}}
{{range .RootRepoBranches}}
<div class="item" data-url="{{$.RepoLink}}/compare/{{EscapePound $.BaseBranch}}...{{$.RootRepo.OwnerName}}/{{$.RootRepo.Name}}:{{EscapePound .}}">{{$.RootRepo.OwnerName}}:{{.}}</div>
{{end}}
{{end}}
</div>
</div>