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authorzeripath <art27@cantab.net>2020-05-12 06:52:46 +0100
committerGitHub <noreply@github.com>2020-05-12 08:52:46 +0300
commit0198bbedc193fd1c5733fede11a57b7900cf6c8c (patch)
treec5be4250e0191f3f027a2d82655d56adc7e84c9e /routers/repo/compare.go
parenta4c7ad99e54d0835f759199599a8dcd6f5d7e90e (diff)
downloadgitea-0198bbedc193fd1c5733fede11a57b7900cf6c8c.tar.gz
gitea-0198bbedc193fd1c5733fede11a57b7900cf6c8c.zip
Allow compare page to look up base, head, own-fork, forkbase-of-head (#11327)
* 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>
Diffstat (limited to 'routers/repo/compare.go')
-rw-r--r--routers/repo/compare.go221
1 files changed, 181 insertions, 40 deletions
diff --git a/routers/repo/compare.go b/routers/repo/compare.go
index 622c911bbe..29a543e67f 100644
--- a/routers/repo/compare.go
+++ b/routers/repo/compare.go
@@ -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
+func getBranchesForRepo(user *models.User, repo *models.Repository) (bool, []string, error) {
+ perm, err := models.GetUserRepoPermission(repo, user)
+ if err != nil {
+ return false, nil, err
}
- if err := repo.GetBaseRepo(); err != nil {
- return err
+ if !perm.CanRead(models.UnitTypeCode) {
+ return false, nil, nil
}
-
- baseGitRepo, err := git.OpenRepository(repo.BaseRepo.RepoPath())
+ gitRepo, err := git.OpenRepository(repo.RepoPath())
if err != nil {
- return err
+ return false, nil, err
}
- defer baseGitRepo.Close()
+ defer gitRepo.Close()
- ctx.Data["BaseRepoBranches"], err = baseGitRepo.GetBranches()
+ branches, err := gitRepo.GetBranches()
if err != nil {
- return err
+ return false, nil, err
}
- return nil
+ 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
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 23:23:00 +0000