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Monorepo for Tangled
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import ( "encoding/json" "fmt" "net/http" "time"
"tangled.org/core/api/tangled" "tangled.org/core/appview/db" "tangled.org/core/appview/knotcompat" "tangled.org/core/appview/models" "tangled.org/core/appview/oauth" "tangled.org/core/appview/pages" "tangled.org/core/appview/reporesolver" "tangled.org/core/appview/xrpcclient" "tangled.org/core/orm" "tangled.org/core/patchutil" "tangled.org/core/types" "tangled.org/core/xrpc"
comatproto "github.com/bluesky-social/indigo/api/atproto" "github.com/bluesky-social/indigo/atproto/syntax" lexutil "github.com/bluesky-social/indigo/lex/util")
func (s *Pulls) ResubmitPull(w http.ResponseWriter, r *http.Request) { l := s.logger.With("handler", "ResubmitPull")
user := s.oauth.GetMultiAccountUser(r) if user != nil { l = l.With("user", user.Did) }
pull, ok := r.Context().Value("pull").(*models.Pull) if !ok { l.Error("failed to get pull") s.pages.Notice(w, "pull-error", "Failed to edit patch. Try again later.") return } l = l.With("pull_id", pull.PullId, "pull_owner", pull.OwnerDid)
switch r.Method { case http.MethodGet: s.pages.PullResubmitFragment(w, pages.PullResubmitParams{ RepoInfo: s.repoResolver.GetRepoInfo(r, user), Pull: pull, }) return case http.MethodPost: if pull.IsPatchBased() { s.resubmitPatch(w, r) return } else if pull.IsBranchBased() { s.resubmitBranch(w, r) return } else if pull.IsForkBased() { s.resubmitFork(w, r) return } }}
func (s *Pulls) resubmitPatch(w http.ResponseWriter, r *http.Request) { l := s.logger.With("handler", "resubmitPatch")
user := s.oauth.GetMultiAccountUser(r) if user != nil { l = l.With("user", user.Did) }
pull, ok := r.Context().Value("pull").(*models.Pull) if !ok { l.Error("failed to get pull") s.pages.Notice(w, "pull-error", "Failed to edit patch. Try again later.") return } l = l.With("pull_id", pull.PullId, "pull_owner", pull.OwnerDid)
if user == nil || user.Did != pull.OwnerDid { l.Warn("unauthorized user", "actual_user", user.Did, "expected_owner", pull.OwnerDid) w.WriteHeader(http.StatusUnauthorized) return }
f, err := s.repoResolver.Resolve(r) if err != nil { l.Error("failed to get repo and knot", "err", err) return }
patch := r.FormValue("patch")
s.resubmitPullHelper(w, r, f, syntax.DID(user.Did), pull, patch, "", "")}
func (s *Pulls) resubmitBranch(w http.ResponseWriter, r *http.Request) { l := s.logger.With("handler", "resubmitBranch")
user := s.oauth.GetMultiAccountUser(r) if user != nil { l = l.With("user", user.Did) }
pull, ok := r.Context().Value("pull").(*models.Pull) if !ok { l.Error("failed to get pull") s.pages.Notice(w, "resubmit-error", "Failed to edit patch. Try again later.") return } l = l.With("pull_id", pull.PullId, "pull_owner", pull.OwnerDid, "target_branch", pull.TargetBranch)
if user == nil || user.Did != pull.OwnerDid { l.Warn("unauthorized user", "actual_user", user.Did, "expected_owner", pull.OwnerDid) w.WriteHeader(http.StatusUnauthorized) return }
f, err := s.repoResolver.Resolve(r) if err != nil { l.Error("failed to get repo and knot", "err", err) return }
roles := s.acl.RolesInRepo(r.Context(), f, user.Did) if !roles.IsPushAllowed() { l.Warn("unauthorized user - no push permission") w.WriteHeader(http.StatusUnauthorized) return }
xrpcc := s.knotClient(f.Knot)
xrpcBytes, err := tangled.RepoCompare(r.Context(), xrpcc, f.RepoIdentifier(), pull.TargetBranch, pull.PullSource.Branch) if err != nil { if xrpcerr := xrpcclient.HandleXrpcErr(err); xrpcerr != nil { l.Error("failed to call XRPC repo.compare", "xrpcerr", xrpcerr, "err", err, "source_branch", pull.PullSource.Branch) s.pages.Notice(w, "resubmit-error", "Failed to create pull request. Try again later.") return } l.Error("compare request failed", "err", err, "source_branch", pull.PullSource.Branch) s.pages.Notice(w, "resubmit-error", err.Error()) return }
var comparison types.RepoFormatPatchResponse if err := json.Unmarshal(xrpcBytes, &comparison); err != nil { l.Error("failed to decode XRPC compare response", "err", err) s.pages.Notice(w, "resubmit-error", "Failed to create pull request. Try again later.") return }
sourceRev := comparison.Rev2 patch := comparison.FormatPatchRaw combined := comparison.CombinedPatchRaw
s.resubmitPullHelper(w, r, f, syntax.DID(user.Did), pull, patch, combined, sourceRev)}
func (s *Pulls) resubmitFork(w http.ResponseWriter, r *http.Request) { l := s.logger.With("handler", "resubmitFork")
user := s.oauth.GetMultiAccountUser(r) if user != nil { l = l.With("user", user.Did) }
pull, ok := r.Context().Value("pull").(*models.Pull) if !ok { l.Error("failed to get pull") s.pages.Notice(w, "resubmit-error", "Failed to edit patch. Try again later.") return } l = l.With("pull_id", pull.PullId, "pull_owner", pull.OwnerDid, "target_branch", pull.TargetBranch)
if user == nil || user.Did != pull.OwnerDid { l.Warn("unauthorized user", "actual_user", user.Did, "expected_owner", pull.OwnerDid) w.WriteHeader(http.StatusUnauthorized) return }
f, err := s.repoResolver.Resolve(r) if err != nil { l.Error("failed to get repo and knot", "err", err) return }
forkRepo, err := db.GetRepoByDid(s.db, string(*pull.PullSource.RepoDid)) if err != nil { l.Error("failed to get source repo", "err", err, "repo_did", pull.PullSource.RepoDid.String()) s.pages.Notice(w, "resubmit-error", "Failed to create pull request. Try again later.") return }
// update the hidden tracking branch to latest client, err := s.oauth.ServiceClient( r, oauth.WithService(forkRepo.Knot), oauth.WithLxm(tangled.RepoHiddenRefNSID), oauth.WithDev(s.config.Core.Dev), ) if err != nil { l.Error("failed to connect to knot server", "err", err, "fork_knot", forkRepo.Knot) return }
resp, err := tangled.RepoHiddenRef( r.Context(), client, &tangled.RepoHiddenRef_Input{ ForkRef: pull.PullSource.Branch, RemoteRef: pull.TargetBranch, Repo: forkRepo.RepoAt().String(), }, ) if xrpcerr := xrpcclient.HandleXrpcErr(err); xrpcerr != nil { s.logger.Error("failed to set hidden ref", "xrpcerr", xrpcerr, "err", err) s.pages.Notice(w, "resubmit-error", xrpcerr.Error()) return } if !resp.Success { l.Error("failed to update tracking ref", "err", resp.Error, "fork_ref", pull.PullSource.Branch, "remote_ref", pull.TargetBranch) s.pages.Notice(w, "resubmit-error", "Failed to update tracking ref.") return }
hiddenRef := fmt.Sprintf("hidden/%s/%s", pull.PullSource.Branch, pull.TargetBranch) // extract patch by performing compare forkXrpcBytes, err := tangled.RepoCompare(r.Context(), s.knotClient(forkRepo.Knot), forkRepo.RepoIdentifier(), hiddenRef, pull.PullSource.Branch) if err != nil { if xrpcerr := xrpcclient.HandleXrpcErr(err); xrpcerr != nil { l.Error("failed to call XRPC repo.compare for fork", "xrpcerr", xrpcerr, "err", err, "hidden_ref", hiddenRef, "source_branch", pull.PullSource.Branch) s.pages.Notice(w, "resubmit-error", "Failed to create pull request. Try again later.") return } l.Error("failed to compare branches", "err", err, "hidden_ref", hiddenRef, "source_branch", pull.PullSource.Branch) s.pages.Notice(w, "resubmit-error", "Failed to create pull request. Try again later.") return }
var forkComparison types.RepoFormatPatchResponse if err := json.Unmarshal(forkXrpcBytes, &forkComparison); err != nil { l.Error("failed to decode XRPC compare response for fork", "err", err) s.pages.Notice(w, "resubmit-error", "Failed to create pull request. Try again later.") return }
// Use the fork comparison we already made comparison := forkComparison
sourceRev := comparison.Rev2 patch := comparison.FormatPatchRaw combined := comparison.CombinedPatchRaw
s.resubmitPullHelper(w, r, f, syntax.DID(user.Did), pull, patch, combined, sourceRev)}
func (s *Pulls) resubmitPullHelper( w http.ResponseWriter, r *http.Request, repo *models.Repo, userDid syntax.DID, pull *models.Pull, patch string, combined string, sourceRev string,) { l := s.logger.With("handler", "resubmitPullHelper", "user", userDid, "pull_id", pull.PullId, "target_branch", pull.TargetBranch)
stack := r.Context().Value("stack").(models.Stack) if stack != nil && len(stack) != 1 { l.Info("resubmitting stacked PR", "stack_size", len(stack)) s.resubmitStackedPullHelper(w, r, repo, userDid, pull, patch) return }
if err := validatePatch(&patch); err != nil { s.pages.Notice(w, "resubmit-error", err.Error()) return }
if patch == pull.LatestPatch() { s.pages.Notice(w, "resubmit-error", "Patch is identical to previous submission.") return }
// validate sourceRev if branch/fork based if pull.IsBranchBased() || pull.IsForkBased() { if sourceRev == pull.LatestSha() { s.pages.Notice(w, "resubmit-error", "This branch has not changed since the last submission.") return } }
pullAt := pull.AtUri() newRoundNumber := len(pull.Submissions) newPatch := patch newSourceRev := sourceRev combinedPatch := combined
client, err := s.oauth.AuthorizedClient(r) if err != nil { l.Error("failed to authorize client", "err", err) s.pages.Notice(w, "resubmit-error", "Failed to create pull request. Try again later.") return }
ex, err := comatproto.RepoGetRecord(r.Context(), client, "", tangled.RepoPullNSID, userDid.String(), pull.Rkey) if err != nil { // failed to get record l.Error("failed to get record from PDS", "err", err, "rkey", pull.Rkey) s.pages.Notice(w, "resubmit-error", "Failed to update pull, no record found on PDS.") return }
blob, err := xrpc.RepoUploadBlob(r.Context(), client, gz(patch), ApplicationGzip) if err != nil { l.Error("failed to upload patch blob", "err", err) s.pages.Notice(w, "resubmit-error", "Failed to update pull request on the PDS. Try again later.") return } record := pull.AsRecord() record.Rounds = append(record.Rounds, &tangled.RepoPull_Round{ CreatedAt: time.Now().Format(time.RFC3339), PatchBlob: blob.Blob, })
_, err = comatproto.RepoPutRecord(r.Context(), client, &comatproto.RepoPutRecord_Input{ Collection: tangled.RepoPullNSID, Repo: userDid.String(), Rkey: pull.Rkey, SwapRecord: ex.Cid, Record: knotcompat.Pull(&record), }) if err != nil { l.Error("failed to update record on PDS", "err", err, "rkey", pull.Rkey) s.pages.Notice(w, "resubmit-error", "Failed to update pull request on the PDS. Try again later.") return }
err = db.ResubmitPull(s.db, pullAt, newRoundNumber, newPatch, combinedPatch, newSourceRev, blob.Blob) if err != nil { l.Error("failed to resubmit pull request in database", "err", err, "round_number", newRoundNumber) s.pages.Notice(w, "resubmit-error", "Failed to create pull request. Try again later.") return }
ownerSlashRepo := reporesolver.GetBaseRepoPath(r, repo) s.pages.HxLocation(w, fmt.Sprintf("/%s/pulls/%d", ownerSlashRepo, pull.PullId))}
func (s *Pulls) resubmitStackedPullHelper( w http.ResponseWriter, r *http.Request, repo *models.Repo, userDid syntax.DID, pull *models.Pull, patch string,) { l := s.logger.With("handler", "resubmitStackedPullHelper", "user", userDid, "pull_id", pull.PullId, "target_branch", pull.TargetBranch)
targetBranch := pull.TargetBranch
origStack, _ := r.Context().Value("stack").(models.Stack)
formatPatches, err := patchutil.ExtractPatches(patch) if err != nil { l.Error("failed to extract patches", "err", err) s.pages.Notice(w, "pull-resubmit-error", "Failed to resubmit pull request. Failed to parse patches.") return }
// must have atleast 1 patch to begin with if len(formatPatches) == 0 { l.Error("no patches found in the generated format-patch") s.pages.Notice(w, "pull-resubmit-error", "Failed to resubmit pull request: No patches found in the generated patch.") return }
client, err := s.oauth.AuthorizedClient(r) if err != nil { l.Error("failed to get authorized client", "err", err) s.pages.Notice(w, "pull", "Failed to create pull request. Try again later.") return }
// first upload all blobs blobs := make([]*lexutil.LexBlob, len(formatPatches)) for i, p := range formatPatches { blob, err := xrpc.RepoUploadBlob(r.Context(), client, gz(p.Raw), ApplicationGzip) if err != nil { l.Error("failed to upload patch blob", "err", err, "patch_index", i) s.pages.Notice(w, "pull", "Failed to create pull request. Try again later.") return } l.Info("uploaded blob", "idx", i+1, "total", len(formatPatches)) blobs[i] = blob.Blob }
newStack, err := s.newStack(r.Context(), repo, userDid, targetBranch, pull.PullSource, formatPatches, blobs, nil, nil) if err != nil { l.Error("failed to create resubmitted stack", "err", err) s.pages.Notice(w, "pull-merge-error", "Failed to merge pull request. Try again later.") return }
// find the diff between the stacks, first, map them by changeId origById := make(map[string]*models.Pull) newById := make(map[string]*models.Pull) for _, p := range origStack { origById[p.LatestSubmission().ChangeId()] = p } for _, p := range newStack { newById[p.LatestSubmission().ChangeId()] = p }
// commits that got deleted: corresponding pull is closed // commits that got added: new pull is created // commits that got updated: corresponding pull is resubmitted & new round begins additions := make(map[string]*models.Pull) deletions := make(map[string]*models.Pull) updated := make(map[string]struct{})
// pulls in original stack but not in new one for _, op := range origStack { if _, ok := newById[op.LatestSubmission().ChangeId()]; !ok { deletions[op.LatestSubmission().ChangeId()] = op } }
// pulls in new stack but not in original one for _, np := range newStack { if _, ok := origById[np.LatestSubmission().ChangeId()]; !ok { additions[np.LatestSubmission().ChangeId()] = np } }
// NOTE: this loop can be written in any of above blocks, // but is written separately in the interest of simpler code for _, np := range newStack { if op, ok := origById[np.LatestSubmission().ChangeId()]; ok { // pull exists in both stacks updated[op.LatestSubmission().ChangeId()] = struct{}{} } }
// NOTE: we can go through the newStack and update dependent relations and // rkeys now that we know which ones have been updated // update dependentOn relations for the entire stack var parentAt *syntax.ATURI for _, np := range newStack { if op, ok := origById[np.LatestSubmission().ChangeId()]; ok { // pull exists in both stacks np.Rkey = op.Rkey } np.DependentOn = parentAt x := np.AtUri() parentAt = &x }
l = l.With("additions", len(additions), "deletions", len(deletions), "updates", len(updated))
tx, err := s.db.Begin() if err != nil { l.Error("failed to start transaction", "err", err) s.pages.Notice(w, "pull-resubmit-error", "Failed to resubmit pull request. Try again later.") return } defer tx.Rollback()
// pds updates to make var writes []*comatproto.RepoApplyWrites_Input_Writes_Elem
// deleted pulls are marked as deleted in the DB for _, p := range deletions { // do not do delete already merged PRs if p.State == models.PullMerged { continue }
err := db.AbandonPulls(tx, orm.FilterEq("repo_did", string(p.RepoDid)), orm.FilterEq("at_uri", p.AtUri())) if err != nil { l.Error("failed to delete pull", "err", err, "pull_id", p.PullId) s.pages.Notice(w, "pull-resubmit-error", "Failed to resubmit pull request. Try again later.") return } writes = append(writes, &comatproto.RepoApplyWrites_Input_Writes_Elem{ RepoApplyWrites_Delete: &comatproto.RepoApplyWrites_Delete{ Collection: tangled.RepoPullNSID, Rkey: p.Rkey, }, }) }
// new pulls are created for _, p := range additions { blob, err := xrpc.RepoUploadBlob(r.Context(), client, gz(p.LatestPatch()), ApplicationGzip) if err != nil { l.Error("failed to upload patch blob for new pull", "err", err, "change_id", p.LatestSubmission().ChangeId()) s.pages.Notice(w, "resubmit-error", "Failed to update pull request on the PDS. Try again later.") return } p.Submissions[0].Blob = *blob.Blob
if err = db.PutPull(tx, p); err != nil { l.Error("failed to create pull", "err", err, "pull_id", p.PullId, "change_id", p.LatestSubmission().ChangeId()) s.pages.Notice(w, "pull-resubmit-error", "Failed to resubmit pull request. Try again later.") return }
record := p.AsRecord() record.Rounds = []*tangled.RepoPull_Round{ { CreatedAt: time.Now().Format(time.RFC3339), PatchBlob: blob.Blob, }, } writes = append(writes, &comatproto.RepoApplyWrites_Input_Writes_Elem{ RepoApplyWrites_Create: &comatproto.RepoApplyWrites_Create{ Collection: tangled.RepoPullNSID, Rkey: &p.Rkey, Value: knotcompat.Pull(&record), }, }) }
// updated pulls are, well, updated; to start a new round for id := range updated { op, _ := origById[id] np, _ := newById[id]
// do not update already merged PRs if op.State == models.PullMerged { continue }
// resubmit the new pull np.Rkey = op.Rkey pullAt := op.AtUri() newRoundNumber := len(op.Submissions) newPatch := np.LatestPatch() combinedPatch := np.LatestSubmission().Combined newSourceRev := np.LatestSha()
blob, err := xrpc.RepoUploadBlob(r.Context(), client, gz(newPatch), ApplicationGzip) if err != nil { l.Error("failed to upload patch blob for update", "err", err, "change_id", id, "pull_id", op.PullId) s.pages.Notice(w, "resubmit-error", "Failed to update pull request on the PDS. Try again later.") return }
// create new round err = db.ResubmitPull(tx, pullAt, newRoundNumber, newPatch, combinedPatch, newSourceRev, blob.Blob) if err != nil { l.Error("failed to update pull in database", "err", err, "pull_id", op.PullId, "round_number", newRoundNumber) s.pages.Notice(w, "pull-resubmit-error", "Failed to resubmit pull request. Try again later.") return }
// update dependent-on relation if np.DependentOn != nil { err := db.SetDependentOn(tx, *np.DependentOn, orm.FilterEq("at_uri", np.AtUri())) if err != nil { l.Error("failed to update pull in database", "err", err, "pull_id", op.PullId, "round_number", newRoundNumber) s.pages.Notice(w, "pull-resubmit-error", "Failed to resubmit pull request. Try again later.") return } }
record := np.AsRecord() record.Rounds = op.AsRecord().Rounds record.Rounds = append(record.Rounds, &tangled.RepoPull_Round{ CreatedAt: time.Now().Format(time.RFC3339), PatchBlob: blob.Blob, }) writes = append(writes, &comatproto.RepoApplyWrites_Input_Writes_Elem{ RepoApplyWrites_Update: &comatproto.RepoApplyWrites_Update{ Collection: tangled.RepoPullNSID, Rkey: op.Rkey, Value: knotcompat.Pull(&record), }, }) }
_, err = comatproto.RepoApplyWrites(r.Context(), client, &comatproto.RepoApplyWrites_Input{ Repo: userDid.String(), Writes: writes, }) if err != nil { l.Error("failed to apply writes for stacked pull request", "err", err, "writes_count", len(writes)) s.pages.Notice(w, "pull", "Failed to create stacked pull request. Try again later.") return }
err = tx.Commit() if err != nil { l.Error("failed to commit resubmit transaction", "err", err) s.pages.Notice(w, "pull-resubmit-error", "Failed to resubmit pull request. Try again later.") return }
ownerSlashRepo := reporesolver.GetBaseRepoPath(r, repo) s.pages.HxLocation(w, fmt.Sprintf("/%s/pulls/%d", ownerSlashRepo, pull.PullId))}