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Monorepo for Tangled forked from ptr.pet/core
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import ( "cmp" "database/sql" "errors" "fmt" "maps" "slices" "sort" "strings" "time"
"github.com/bluesky-social/indigo/atproto/syntax" lexutil "github.com/bluesky-social/indigo/lex/util" "github.com/ipfs/go-cid" "tangled.org/core/appview/models" "tangled.org/core/appview/pagination" "tangled.org/core/orm" "tangled.org/core/sets")
func comparePullSource(existing, new *models.PullSource) bool { if existing == nil && new == nil { return true } if existing == nil || new == nil { return false } if existing.Branch != new.Branch { return false } if existing.RepoDid == nil && new.RepoDid == nil { return true } if existing.RepoDid == nil || new.RepoDid == nil { return false } return *existing.RepoDid == *new.RepoDid}
func compareSubmissions(existing, new []*models.PullSubmission) bool { if len(existing) != len(new) { return false } for i := range existing { if existing[i].Blob.Ref.String() != new[i].Blob.Ref.String() { return false } if existing[i].Blob.MimeType != new[i].Blob.MimeType { return false } if existing[i].Blob.Size != new[i].Blob.Size { return false } } return true}
func PutPull(tx *sql.Tx, pull *models.Pull) error { // ensure sequence exists _, err := tx.Exec(` insert or ignore into repo_pull_seqs (repo_did, next_pull_id) values (?, 1) `, pull.RepoDid) if err != nil { return err }
pulls, err := GetPulls( tx, orm.FilterEq("owner_did", pull.OwnerDid), orm.FilterEq("rkey", pull.Rkey), ) switch { case err != nil: return err case len(pulls) == 0: return createNewPull(tx, pull) case len(pulls) != 1: // should be unreachable return fmt.Errorf("invalid number of pulls returned: %d", len(pulls)) default: existingPull := pulls[0] if existingPull.State == models.PullMerged { return nil }
dependentOnEqual := (existingPull.DependentOn == nil && pull.DependentOn == nil) || (existingPull.DependentOn != nil && pull.DependentOn != nil && *existingPull.DependentOn == *pull.DependentOn)
pullSourceEqual := comparePullSource(existingPull.PullSource, pull.PullSource) submissionsEqual := compareSubmissions(existingPull.Submissions, pull.Submissions)
if existingPull.Title == pull.Title && existingPull.Body == pull.Body && existingPull.TargetBranch == pull.TargetBranch && existingPull.RepoDid == pull.RepoDid && dependentOnEqual && pullSourceEqual && submissionsEqual { return nil }
isLonger := len(existingPull.Submissions) < len(pull.Submissions) if isLonger { isAppendOnly := compareSubmissions(existingPull.Submissions, pull.Submissions[:len(existingPull.Submissions)]) if !isAppendOnly { return fmt.Errorf("the new pull does not treat submissions as append-only") } } else if !submissionsEqual { return fmt.Errorf("the new pull does not treat submissions as append-only") }
pull.ID = existingPull.ID pull.PullId = existingPull.PullId return updatePull(tx, pull, existingPull) }}
func createNewPull(tx *sql.Tx, pull *models.Pull) error { _, err := tx.Exec(` insert or ignore into repo_pull_seqs (repo_did, next_pull_id) values (?, 1) `, pull.RepoDid) if err != nil { return err }
var nextId int err = tx.QueryRow(` update repo_pull_seqs set next_pull_id = next_pull_id + 1 where repo_did = ? returning next_pull_id - 1 `, pull.RepoDid).Scan(&nextId) if err != nil { return err }
pull.PullId = nextId pull.State = models.PullOpen
var sourceBranch, sourceRepoDid *string if pull.PullSource != nil { sourceBranch = &pull.PullSource.Branch if pull.PullSource.RepoDid != nil { x := string(*pull.PullSource.RepoDid) sourceRepoDid = &x } }
result, err := tx.Exec( ` insert into pulls ( repo_did, owner_did, pull_id, title, target_branch, body, rkey, state, dependent_on, source_branch, source_repo_did ) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`, pull.RepoDid, pull.OwnerDid, pull.PullId, pull.Title, pull.TargetBranch, pull.Body, pull.Rkey, pull.State, pull.DependentOn, sourceBranch, sourceRepoDid, ) if err != nil { return err }
// Set the database primary key ID id, err := result.LastInsertId() if err != nil { return err } pull.ID = int(id)
for i, s := range pull.Submissions { _, err = tx.Exec(` insert into pull_submissions ( pull_at, round_number, patch, combined, source_rev, patch_blob_ref, patch_blob_mime, patch_blob_size ) values (?, ?, ?, ?, ?, ?, ?, ?) `, pull.AtUri(), i, s.Patch, s.Combined, s.SourceRev, s.Blob.Ref.String(), s.Blob.MimeType, s.Blob.Size, ) if err != nil { return err } }
if err := putReferences(tx, pull.AtUri(), pull.References); err != nil { return fmt.Errorf("put reference_links: %w", err) }
return nil}
func updatePull(tx *sql.Tx, pull *models.Pull, existingPull *models.Pull) error { var sourceBranch, sourceRepoDid *string if pull.PullSource != nil { sourceBranch = &pull.PullSource.Branch if pull.PullSource.RepoDid != nil { x := string(*pull.PullSource.RepoDid) sourceRepoDid = &x } }
_, err := tx.Exec(` update pulls set title = ?, body = ?, target_branch = ?, dependent_on = ?, source_branch = ?, source_repo_did = ? where owner_did = ? and rkey = ? `, pull.Title, pull.Body, pull.TargetBranch, pull.DependentOn, sourceBranch, sourceRepoDid, pull.OwnerDid, pull.Rkey) if err != nil { return err }
// insert new submissions (append-only) for i := len(existingPull.Submissions); i < len(pull.Submissions); i++ { s := pull.Submissions[i] _, err = tx.Exec(` insert into pull_submissions ( pull_at, round_number, patch, combined, source_rev, patch_blob_ref, patch_blob_mime, patch_blob_size ) values (?, ?, ?, ?, ?, ?, ?, ?) `, pull.AtUri(), i, s.Patch, s.Combined, s.SourceRev, s.Blob.Ref.String(), s.Blob.MimeType, s.Blob.Size, ) if err != nil { return err } }
if err := putReferences(tx, pull.AtUri(), pull.References); err != nil { return fmt.Errorf("put reference_links: %w", err) } return nil}
func NextPullId(e Execer, repoDid string) (int, error) { var pullId int err := e.QueryRow(`select next_pull_id from repo_pull_seqs where repo_did = ?`, repoDid).Scan(&pullId) return pullId - 1, err}
func GetPullsPaginated(e Execer, page pagination.Page, filters ...orm.Filter) ([]*models.Pull, error) { pulls := make(map[syntax.ATURI]*models.Pull)
var conditions []string var args []any for _, filter := range filters { conditions = append(conditions, filter.Condition()) args = append(args, filter.Arg()...) }
whereClause := "" if conditions != nil { whereClause = " where " + strings.Join(conditions, " and ") } pageClause := "" if page.Limit != 0 { pageClause = fmt.Sprintf( " limit %d offset %d ", page.Limit, page.Offset, ) }
query := fmt.Sprintf(` select id, owner_did, repo_did, pull_id, created, title, state, target_branch, body, rkey, source_branch, source_repo_did, dependent_on from pulls %s order by created desc %s `, whereClause, pageClause)
rows, err := e.Query(query, args...) if err != nil { return nil, err } defer rows.Close()
for rows.Next() { var pull models.Pull var createdAt string var sourceBranch, sourceRepoDid, dependentOn sql.NullString err := rows.Scan( &pull.ID, &pull.OwnerDid, &pull.RepoDid, &pull.PullId, &createdAt, &pull.Title, &pull.State, &pull.TargetBranch, &pull.Body, &pull.Rkey, &sourceBranch, &sourceRepoDid, &dependentOn, ) if err != nil { return nil, err }
createdTime, err := time.Parse(time.RFC3339, createdAt) if err != nil { return nil, err } pull.Created = createdTime
if sourceBranch.Valid { pull.PullSource = &models.PullSource{ Branch: sourceBranch.String, } if sourceRepoDid.Valid { sourceRepoDidParsed, err := syntax.ParseDID(sourceRepoDid.String) if err != nil { return nil, err } pull.PullSource.RepoDid = &sourceRepoDidParsed } }
if dependentOn.Valid { x := syntax.ATURI(dependentOn.String) pull.DependentOn = &x }
pulls[pull.AtUri()] = &pull }
var pullAts []syntax.ATURI for _, p := range pulls { pullAts = append(pullAts, p.AtUri()) } submissionsMap, err := GetPullSubmissions(e, orm.FilterIn("pull_at", pullAts)) if err != nil { return nil, fmt.Errorf("failed to get submissions: %w", err) }
for pullAt, submissions := range submissionsMap { if p, ok := pulls[pullAt]; ok { p.Submissions = submissions } }
// collect allLabels for each issue allLabels, err := GetLabels(e, orm.FilterIn("subject", pullAts)) if err != nil { return nil, fmt.Errorf("failed to query labels: %w", err) } for pullAt, labels := range allLabels { if p, ok := pulls[pullAt]; ok { p.Labels = labels } }
// build up reverse mappings: p.Repo and p.PullSource.Repo var repoDids []syntax.DID for _, p := range pulls { repoDids = append(repoDids, p.RepoDid) if p.PullSource != nil && p.PullSource.RepoDid != nil { repoDids = append(repoDids, *p.PullSource.RepoDid) } }
repos, err := GetRepos(e, orm.FilterIn("repo_did", repoDids)) if err != nil && !errors.Is(err, sql.ErrNoRows) { return nil, fmt.Errorf("failed to get repos: %w", err) }
repoMap := make(map[syntax.DID]*models.Repo) for _, r := range repos { repoMap[syntax.DID(r.RepoDid)] = &r }
for _, p := range pulls { if repo, ok := repoMap[p.RepoDid]; ok { p.Repo = repo } if p.PullSource != nil && p.PullSource.RepoDid != nil { if sourceRepo, ok := repoMap[*p.PullSource.RepoDid]; ok { p.PullSource.Repo = sourceRepo } } }
allReferences, err := GetReferencesAll(e, orm.FilterIn("from_at", pullAts)) if err != nil { return nil, fmt.Errorf("failed to query reference_links: %w", err) } for pullAt, references := range allReferences { if pull, ok := pulls[pullAt]; ok { pull.References = references } }
orderedByPullId := []*models.Pull{} for _, p := range pulls { orderedByPullId = append(orderedByPullId, p) } sort.Slice(orderedByPullId, func(i, j int) bool { return orderedByPullId[i].PullId > orderedByPullId[j].PullId })
return orderedByPullId, nil}
func GetPulls(e Execer, filters ...orm.Filter) ([]*models.Pull, error) { return GetPullsPaginated(e, pagination.Page{}, filters...)}
func GetPull(e Execer, filters ...orm.Filter) (*models.Pull, error) { pulls, err := GetPullsPaginated(e, pagination.Page{Limit: 1}, filters...) if err != nil { return nil, err } if len(pulls) == 0 { return nil, sql.ErrNoRows }
return pulls[0], nil}
// mapping from pull -> pull submissionsfunc GetPullSubmissions(e Execer, filters ...orm.Filter) (map[syntax.ATURI][]*models.PullSubmission, error) { var conditions []string var args []any for _, filter := range filters { conditions = append(conditions, filter.Condition()) args = append(args, filter.Arg()...) }
whereClause := "" if conditions != nil { whereClause = " where " + strings.Join(conditions, " and ") }
query := fmt.Sprintf(` select id, pull_at, round_number, patch, combined, created, source_rev, patch_blob_ref, patch_blob_mime, patch_blob_size from pull_submissions %s order by round_number asc `, whereClause)
rows, err := e.Query(query, args...) if err != nil { return nil, err } defer rows.Close()
pullMap := make(map[syntax.ATURI][]*models.PullSubmission)
for rows.Next() { var submission models.PullSubmission var submissionCreatedStr string var submissionSourceRev, submissionCombined sql.Null[string] var patchBlobRef, patchBlobMime sql.Null[string] var patchBlobSize sql.Null[int64] err := rows.Scan( &submission.ID, &submission.PullAt, &submission.RoundNumber, &submission.Patch, &submissionCombined, &submissionCreatedStr, &submissionSourceRev, &patchBlobRef, &patchBlobMime, &patchBlobSize, ) if err != nil { return nil, err }
if t, err := time.Parse(time.RFC3339, submissionCreatedStr); err == nil { submission.Created = t }
if submissionSourceRev.Valid { submission.SourceRev = submissionSourceRev.V }
if submissionCombined.Valid { submission.Combined = submissionCombined.V }
if patchBlobRef.Valid { submission.Blob.Ref = lexutil.LexLink(cid.MustParse(patchBlobRef.V)) }
if patchBlobMime.Valid { submission.Blob.MimeType = patchBlobMime.V }
if patchBlobSize.Valid { submission.Blob.Size = patchBlobSize.V }
pullMap[submission.PullAt] = append(pullMap[submission.PullAt], &submission) }
if err := rows.Err(); err != nil { return nil, err }
// Get comments for all submissions using GetComments pullAts := slices.Collect(maps.Keys(pullMap)) comments, err := GetComments(e, orm.FilterIn("subject_uri", pullAts)) if err != nil { return nil, fmt.Errorf("failed to get pull comments: %w", err) } for _, comment := range comments { if comment.PullRoundIdx != nil { roundIdx := *comment.PullRoundIdx if submissions, ok := pullMap[syntax.ATURI(comment.Subject.Uri)]; ok { if roundIdx < len(submissions) { submission := submissions[roundIdx] submission.Comments = append(submission.Comments, comment) } } } }
// sort each one by round number for _, s := range pullMap { slices.SortFunc(s, func(a, b *models.PullSubmission) int { return cmp.Compare(a.RoundNumber, b.RoundNumber) }) }
return pullMap, nil}
// timeframe here is directly passed into the sql query filter, and any// timeframe in the past should be negative; e.g.: "-3 months"func GetPullsByOwnerDid(e Execer, did, timeframe string) ([]models.Pull, error) { var pulls []models.Pull
rows, err := e.Query(` select p.owner_did, p.repo_did, p.pull_id, p.created, p.title, p.state, r.did, r.name, r.knot, r.rkey, r.created from pulls p join repos r on p.repo_did = r.repo_did where p.owner_did = ? and p.created >= date ('now', ?) order by p.created desc`, did, timeframe) if err != nil { return nil, err } defer rows.Close()
for rows.Next() { var pull models.Pull var repo models.Repo var pullCreatedAt, repoCreatedAt string err := rows.Scan( &pull.OwnerDid, &pull.RepoDid, &pull.PullId, &pullCreatedAt, &pull.Title, &pull.State, &repo.Did, &repo.Name, &repo.Knot, &repo.Rkey, &repoCreatedAt, ) if err != nil { return nil, err }
pullCreatedTime, err := time.Parse(time.RFC3339, pullCreatedAt) if err != nil { return nil, err } pull.Created = pullCreatedTime
repoCreatedTime, err := time.Parse(time.RFC3339, repoCreatedAt) if err != nil { return nil, err } repo.Created = repoCreatedTime
pull.Repo = &repo
pulls = append(pulls, pull) }
if err := rows.Err(); err != nil { return nil, err }
return pulls, nil}
// use with transactionfunc SetPullsState(e Execer, pullState models.PullState, filters ...orm.Filter) error { var conditions []string var args []any
args = append(args, pullState) for _, filter := range filters { conditions = append(conditions, filter.Condition()) args = append(args, filter.Arg()...) } args = append(args, models.PullAbandoned) // only update state of non-deleted pulls args = append(args, models.PullMerged) // only update state of non-merged pulls
whereClause := "" if conditions != nil { whereClause = " where " + strings.Join(conditions, " and ") }
query := fmt.Sprintf("update pulls set state = ? %s and state <> ? and state <> ?", whereClause)
_, err := e.Exec(query, args...) return err}
func ClosePulls(e Execer, filters ...orm.Filter) error { return SetPullsState(e, models.PullClosed, filters...)}
func ReopenPulls(e Execer, filters ...orm.Filter) error { return SetPullsState(e, models.PullOpen, filters...)}
func MergePulls(e Execer, filters ...orm.Filter) error { return SetPullsState(e, models.PullMerged, filters...)}
func AbandonPulls(e Execer, filters ...orm.Filter) error { return SetPullsState(e, models.PullAbandoned, filters...)}
func ResubmitPull( e Execer, pullAt syntax.ATURI, newRoundNumber int, newPatch string, combinedPatch string, newSourceRev string, blob *lexutil.LexBlob,) error { _, err := e.Exec(` insert into pull_submissions ( pull_at, round_number, patch, combined, source_rev, patch_blob_ref, patch_blob_mime, patch_blob_size ) values (?, ?, ?, ?, ?, ?, ?, ?) `, pullAt, newRoundNumber, newPatch, combinedPatch, newSourceRev, blob.Ref.String(), blob.MimeType, blob.Size)
return err}
func SetDependentOn(e Execer, dependentOn syntax.ATURI, filters ...orm.Filter) error { var conditions []string var args []any
args = append(args, dependentOn)
for _, filter := range filters { conditions = append(conditions, filter.Condition()) args = append(args, filter.Arg()...) }
whereClause := "" if conditions != nil { whereClause = " where " + strings.Join(conditions, " and ") }
query := fmt.Sprintf("update pulls set dependent_on = ? %s", whereClause) _, err := e.Exec(query, args...)
return err}
func GetPullCount(e Execer, repoDid string) (models.PullCount, error) { row := e.QueryRow(` select count(case when state = ? then 1 end) as open_count, count(case when state = ? then 1 end) as merged_count, count(case when state = ? then 1 end) as closed_count, count(case when state = ? then 1 end) as deleted_count from pulls where repo_did = ?`, models.PullOpen, models.PullMerged, models.PullClosed, models.PullAbandoned, repoDid, )
var count models.PullCount if err := row.Scan(&count.Open, &count.Merged, &count.Closed, &count.Deleted); err != nil { return models.PullCount{Open: 0, Merged: 0, Closed: 0, Deleted: 0}, err }
return count, nil}
// change-id dependent_on//// 4 w ,-------- at_uri(z) (TOP)// 3 z <----',------- at_uri(y)// 2 y <-----',------ at_uri(x)// 1 x <------' nil (BOT)//// `w` has no dependents, so it is the top of the stack//// this unfortunately does a db query for *each* pull of the stack,// ideally this would be a recursive query, but in the interest of implementation simplicity,// we took the less performant route//// TODO: make this less badfunc GetStack(e Execer, atUri syntax.ATURI) (models.Stack, error) { // first get the pull for the given at-uri pull, err := GetPull(e, orm.FilterEq("at_uri", atUri)) if err != nil { return nil, err }
// Collect all pulls in the stack by traversing up and down allPulls := []*models.Pull{pull} visited := sets.New[syntax.ATURI]()
// Traverse up to find all dependents current := pull for { dependent, err := GetPull(e, orm.FilterEq("dependent_on", current.AtUri()), orm.FilterNotEq("state", models.PullAbandoned), ) if err != nil || dependent == nil { break } if visited.Contains(dependent.AtUri()) { return allPulls, fmt.Errorf("circular dependency detected in stack") } allPulls = append(allPulls, dependent) visited.Insert(dependent.AtUri()) current = dependent }
// Traverse down to find all dependencies current = pull for current.DependentOn != nil { dependency, err := GetPull( e, orm.FilterEq("at_uri", current.DependentOn), orm.FilterNotEq("state", models.PullAbandoned), )
if err != nil { return allPulls, fmt.Errorf("failed to find parent pull request, stack is malformed, missing PR: %s", current.DependentOn) } if visited.Contains(dependency.AtUri()) { return allPulls, fmt.Errorf("circular dependency detected in stack") } allPulls = append(allPulls, dependency) visited.Insert(dependency.AtUri()) current = dependency }
// sort the list: find the top and build ordered list atUriMap := make(map[syntax.ATURI]*models.Pull, len(allPulls)) dependentMap := make(map[syntax.ATURI]*models.Pull, len(allPulls))
for _, p := range allPulls { atUriMap[p.AtUri()] = p if p.DependentOn != nil { dependentMap[*p.DependentOn] = p } }
// the top of the stack is the pull that no other pull depends on var topPull *models.Pull for _, maybeTop := range allPulls { if _, ok := dependentMap[maybeTop.AtUri()]; !ok { topPull = maybeTop break } }
pulls := []*models.Pull{} for { pulls = append(pulls, topPull) if topPull.DependentOn != nil { if next, ok := atUriMap[*topPull.DependentOn]; ok { topPull = next } else { return pulls, fmt.Errorf("failed to find parent pull request, stack is malformed") } } else { break } }
return pulls, nil}
func GetAbandonedPulls(e Execer, atUri syntax.ATURI) ([]*models.Pull, error) { stack, err := GetStack(e, atUri) if err != nil { return nil, err }
var abandoned []*models.Pull for _, p := range stack { if p.State == models.PullAbandoned { abandoned = append(abandoned, p) } }
return abandoned, nil}