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Monorepo for Tangled forked from tangled.org/core
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at commit e47737da
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import ( "database/sql" "fmt" "log" "slices" "sort" "strings" "time"
"github.com/bluesky-social/indigo/atproto/syntax" "tangled.sh/tangled.sh/core/api/tangled" "tangled.sh/tangled.sh/core/patchutil" "tangled.sh/tangled.sh/core/types")
type PullState int
const ( PullClosed PullState = iota PullOpen PullMerged PullDeleted)
func (p PullState) String() string { switch p { case PullOpen: return "open" case PullMerged: return "merged" case PullClosed: return "closed" case PullDeleted: return "deleted" default: return "closed" }}
func (p PullState) IsOpen() bool { return p == PullOpen}func (p PullState) IsMerged() bool { return p == PullMerged}func (p PullState) IsClosed() bool { return p == PullClosed}func (p PullState) IsDeleted() bool { return p == PullDeleted}
type Pull struct { // ids ID int PullId int
// at ids RepoAt syntax.ATURI OwnerDid string Rkey string
// content Title string Body string TargetBranch string State PullState Submissions []*PullSubmission
// stacking StackId string // nullable string ChangeId string // nullable string ParentChangeId string // nullable string
// meta Created time.Time PullSource *PullSource
// optionally, populate this when querying for reverse mappings Repo *Repo}
func (p Pull) AsRecord() tangled.RepoPull { var source *tangled.RepoPull_Source if p.PullSource != nil { s := p.PullSource.AsRecord() source = &s source.Sha = p.LatestSha() }
record := tangled.RepoPull{ Title: p.Title, Body: &p.Body, CreatedAt: p.Created.Format(time.RFC3339), PullId: int64(p.PullId), TargetRepo: p.RepoAt.String(), TargetBranch: p.TargetBranch, Patch: p.LatestPatch(), Source: source, } return record}
type PullSource struct { Branch string RepoAt *syntax.ATURI
// optionally populate this for reverse mappings Repo *Repo}
func (p PullSource) AsRecord() tangled.RepoPull_Source { var repoAt *string if p.RepoAt != nil { s := p.RepoAt.String() repoAt = &s } record := tangled.RepoPull_Source{ Branch: p.Branch, Repo: repoAt, } return record}
type PullSubmission struct { // ids ID int PullId int
// at ids RepoAt syntax.ATURI
// content RoundNumber int Patch string Comments []PullComment SourceRev string // include the rev that was used to create this submission: only for branch/fork PRs
// meta Created time.Time}
type PullComment struct { // ids ID int PullId int SubmissionId int
// at ids RepoAt string OwnerDid string CommentAt string
// content Body string
// meta Created time.Time}
func (p *Pull) LatestPatch() string { latestSubmission := p.Submissions[p.LastRoundNumber()] return latestSubmission.Patch}
func (p *Pull) LatestSha() string { latestSubmission := p.Submissions[p.LastRoundNumber()] return latestSubmission.SourceRev}
func (p *Pull) PullAt() syntax.ATURI { return syntax.ATURI(fmt.Sprintf("at://%s/%s/%s", p.OwnerDid, tangled.RepoPullNSID, p.Rkey))}
func (p *Pull) LastRoundNumber() int { return len(p.Submissions) - 1}
func (p *Pull) IsPatchBased() bool { return p.PullSource == nil}
func (p *Pull) IsBranchBased() bool { if p.PullSource != nil { if p.PullSource.RepoAt != nil { return p.PullSource.RepoAt == &p.RepoAt } else { // no repo specified return true } } return false}
func (p *Pull) IsForkBased() bool { if p.PullSource != nil { if p.PullSource.RepoAt != nil { // make sure repos are different return p.PullSource.RepoAt != &p.RepoAt } } return false}
func (p *Pull) IsStacked() bool { return p.StackId != ""}
func (s PullSubmission) IsFormatPatch() bool { return patchutil.IsFormatPatch(s.Patch)}
func (s PullSubmission) AsFormatPatch() []types.FormatPatch { patches, err := patchutil.ExtractPatches(s.Patch) if err != nil { log.Println("error extracting patches from submission:", err) return []types.FormatPatch{} }
return patches}
func NewPull(tx *sql.Tx, pull *Pull) error { _, err := tx.Exec(` insert or ignore into repo_pull_seqs (repo_at, next_pull_id) values (?, 1) `, pull.RepoAt) 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_at = ? returning next_pull_id - 1 `, pull.RepoAt).Scan(&nextId) if err != nil { return err }
pull.PullId = nextId pull.State = PullOpen
var sourceBranch, sourceRepoAt *string if pull.PullSource != nil { sourceBranch = &pull.PullSource.Branch if pull.PullSource.RepoAt != nil { x := pull.PullSource.RepoAt.String() sourceRepoAt = &x } }
var stackId, changeId, parentChangeId *string if pull.StackId != "" { stackId = &pull.StackId } if pull.ChangeId != "" { changeId = &pull.ChangeId } if pull.ParentChangeId != "" { parentChangeId = &pull.ParentChangeId }
_, err = tx.Exec( ` insert into pulls ( repo_at, owner_did, pull_id, title, target_branch, body, rkey, state, source_branch, source_repo_at, stack_id, change_id, parent_change_id ) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`, pull.RepoAt, pull.OwnerDid, pull.PullId, pull.Title, pull.TargetBranch, pull.Body, pull.Rkey, pull.State, sourceBranch, sourceRepoAt, stackId, changeId, parentChangeId, ) if err != nil { return err }
_, err = tx.Exec(` insert into pull_submissions (pull_id, repo_at, round_number, patch, source_rev) values (?, ?, ?, ?, ?) `, pull.PullId, pull.RepoAt, 0, pull.Submissions[0].Patch, pull.Submissions[0].SourceRev) return err}
func GetPullAt(e Execer, repoAt syntax.ATURI, pullId int) (syntax.ATURI, error) { pull, err := GetPull(e, repoAt, pullId) if err != nil { return "", err } return pull.PullAt(), err}
func NextPullId(e Execer, repoAt syntax.ATURI) (int, error) { var pullId int err := e.QueryRow(`select next_pull_id from repo_pull_seqs where repo_at = ?`, repoAt).Scan(&pullId) return pullId - 1, err}
func GetPulls(e Execer, filters ...filter) ([]*Pull, error) { pulls := make(map[int]*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 ") }
query := fmt.Sprintf(` select owner_did, repo_at, pull_id, created, title, state, target_branch, body, rkey, source_branch, source_repo_at, stack_id, change_id, parent_change_id from pulls %s `, whereClause)
rows, err := e.Query(query, args...) if err != nil { return nil, err } defer rows.Close()
for rows.Next() { var pull Pull var createdAt string var sourceBranch, sourceRepoAt, stackId, changeId, parentChangeId sql.NullString err := rows.Scan( &pull.OwnerDid, &pull.RepoAt, &pull.PullId, &createdAt, &pull.Title, &pull.State, &pull.TargetBranch, &pull.Body, &pull.Rkey, &sourceBranch, &sourceRepoAt, &stackId, &changeId, &parentChangeId, ) 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 = &PullSource{ Branch: sourceBranch.String, } if sourceRepoAt.Valid { sourceRepoAtParsed, err := syntax.ParseATURI(sourceRepoAt.String) if err != nil { return nil, err } pull.PullSource.RepoAt = &sourceRepoAtParsed } }
if stackId.Valid { pull.StackId = stackId.String } if changeId.Valid { pull.ChangeId = changeId.String } if parentChangeId.Valid { pull.ParentChangeId = parentChangeId.String }
pulls[pull.PullId] = &pull }
// get latest round no. for each pull inClause := strings.TrimSuffix(strings.Repeat("?, ", len(pulls)), ", ") submissionsQuery := fmt.Sprintf(` select id, pull_id, round_number, patch, source_rev from pull_submissions where repo_at in (%s) and pull_id in (%s) `, inClause, inClause)
args = make([]any, len(pulls)*2) idx := 0 for _, p := range pulls { args[idx] = p.RepoAt idx += 1 } for _, p := range pulls { args[idx] = p.PullId idx += 1 } submissionsRows, err := e.Query(submissionsQuery, args...) if err != nil { return nil, err } defer submissionsRows.Close()
for submissionsRows.Next() { var s PullSubmission var sourceRev sql.NullString err := submissionsRows.Scan( &s.ID, &s.PullId, &s.RoundNumber, &s.Patch, &sourceRev, ) if err != nil { return nil, err }
if sourceRev.Valid { s.SourceRev = sourceRev.String }
if p, ok := pulls[s.PullId]; ok { p.Submissions = make([]*PullSubmission, s.RoundNumber+1) p.Submissions[s.RoundNumber] = &s } } if err := rows.Err(); err != nil { return nil, err }
// get comment count on latest submission on each pull inClause = strings.TrimSuffix(strings.Repeat("?, ", len(pulls)), ", ") commentsQuery := fmt.Sprintf(` select count(id), pull_id from pull_comments where submission_id in (%s) group by submission_id `, inClause)
args = []any{} for _, p := range pulls { args = append(args, p.Submissions[p.LastRoundNumber()].ID) } commentsRows, err := e.Query(commentsQuery, args...) if err != nil { return nil, err } defer commentsRows.Close()
for commentsRows.Next() { var commentCount, pullId int err := commentsRows.Scan( &commentCount, &pullId, ) if err != nil { return nil, err } if p, ok := pulls[pullId]; ok { p.Submissions[p.LastRoundNumber()].Comments = make([]PullComment, commentCount) } } if err := rows.Err(); err != nil { return nil, err }
orderedByPullId := []*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 GetPull(e Execer, repoAt syntax.ATURI, pullId int) (*Pull, error) { query := ` select owner_did, pull_id, created, title, state, target_branch, repo_at, body, rkey, source_branch, source_repo_at, stack_id, change_id, parent_change_id from pulls where repo_at = ? and pull_id = ? ` row := e.QueryRow(query, repoAt, pullId)
var pull Pull var createdAt string var sourceBranch, sourceRepoAt, stackId, changeId, parentChangeId sql.NullString err := row.Scan( &pull.OwnerDid, &pull.PullId, &createdAt, &pull.Title, &pull.State, &pull.TargetBranch, &pull.RepoAt, &pull.Body, &pull.Rkey, &sourceBranch, &sourceRepoAt, &stackId, &changeId, &parentChangeId, ) if err != nil { return nil, err }
createdTime, err := time.Parse(time.RFC3339, createdAt) if err != nil { return nil, err } pull.Created = createdTime
// populate source if sourceBranch.Valid { pull.PullSource = &PullSource{ Branch: sourceBranch.String, } if sourceRepoAt.Valid { sourceRepoAtParsed, err := syntax.ParseATURI(sourceRepoAt.String) if err != nil { return nil, err } pull.PullSource.RepoAt = &sourceRepoAtParsed } }
if stackId.Valid { pull.StackId = stackId.String } if changeId.Valid { pull.ChangeId = changeId.String } if parentChangeId.Valid { pull.ParentChangeId = parentChangeId.String }
submissionsQuery := ` select id, pull_id, repo_at, round_number, patch, created, source_rev from pull_submissions where repo_at = ? and pull_id = ? ` submissionsRows, err := e.Query(submissionsQuery, repoAt, pullId) if err != nil { return nil, err } defer submissionsRows.Close()
submissionsMap := make(map[int]*PullSubmission)
for submissionsRows.Next() { var submission PullSubmission var submissionCreatedStr string var submissionSourceRev sql.NullString err := submissionsRows.Scan( &submission.ID, &submission.PullId, &submission.RepoAt, &submission.RoundNumber, &submission.Patch, &submissionCreatedStr, &submissionSourceRev, ) if err != nil { return nil, err }
submissionCreatedTime, err := time.Parse(time.RFC3339, submissionCreatedStr) if err != nil { return nil, err } submission.Created = submissionCreatedTime
if submissionSourceRev.Valid { submission.SourceRev = submissionSourceRev.String }
submissionsMap[submission.ID] = &submission } if err = submissionsRows.Close(); err != nil { return nil, err } if len(submissionsMap) == 0 { return &pull, nil }
var args []any for k := range submissionsMap { args = append(args, k) } inClause := strings.TrimSuffix(strings.Repeat("?, ", len(submissionsMap)), ", ") commentsQuery := fmt.Sprintf(` select id, pull_id, submission_id, repo_at, owner_did, comment_at, body, created from pull_comments where submission_id IN (%s) order by created asc `, inClause) commentsRows, err := e.Query(commentsQuery, args...) if err != nil { return nil, err } defer commentsRows.Close()
for commentsRows.Next() { var comment PullComment var commentCreatedStr string err := commentsRows.Scan( &comment.ID, &comment.PullId, &comment.SubmissionId, &comment.RepoAt, &comment.OwnerDid, &comment.CommentAt, &comment.Body, &commentCreatedStr, ) if err != nil { return nil, err }
commentCreatedTime, err := time.Parse(time.RFC3339, commentCreatedStr) if err != nil { return nil, err } comment.Created = commentCreatedTime
// Add the comment to its submission if submission, ok := submissionsMap[comment.SubmissionId]; ok { submission.Comments = append(submission.Comments, comment) }
} if err = commentsRows.Err(); err != nil { return nil, err }
var pullSourceRepo *Repo if pull.PullSource != nil { if pull.PullSource.RepoAt != nil { pullSourceRepo, err = GetRepoByAtUri(e, pull.PullSource.RepoAt.String()) if err != nil { log.Printf("failed to get repo by at uri: %v", err) } else { pull.PullSource.Repo = pullSourceRepo } } }
pull.Submissions = make([]*PullSubmission, len(submissionsMap)) for _, submission := range submissionsMap { pull.Submissions[submission.RoundNumber] = submission }
return &pull, 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) ([]Pull, error) { var pulls []Pull
rows, err := e.Query(` select p.owner_did, p.repo_at, 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_at = r.at_uri 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 Pull var repo Repo var pullCreatedAt, repoCreatedAt string err := rows.Scan( &pull.OwnerDid, &pull.RepoAt, &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}
func NewPullComment(e Execer, comment *PullComment) (int64, error) { query := `insert into pull_comments (owner_did, repo_at, submission_id, comment_at, pull_id, body) values (?, ?, ?, ?, ?, ?)` res, err := e.Exec( query, comment.OwnerDid, comment.RepoAt, comment.SubmissionId, comment.CommentAt, comment.PullId, comment.Body, ) if err != nil { return 0, err }
i, err := res.LastInsertId() if err != nil { return 0, err }
return i, nil}
func SetPullState(e Execer, repoAt syntax.ATURI, pullId int, pullState PullState) error { _, err := e.Exec( `update pulls set state = ? where repo_at = ? and pull_id = ? and (state <> ? or state <> ?)`, pullState, repoAt, pullId, PullDeleted, // only update state of non-deleted pulls PullMerged, // only update state of non-merged pulls ) return err}
func ClosePull(e Execer, repoAt syntax.ATURI, pullId int) error { err := SetPullState(e, repoAt, pullId, PullClosed) return err}
func ReopenPull(e Execer, repoAt syntax.ATURI, pullId int) error { err := SetPullState(e, repoAt, pullId, PullOpen) return err}
func MergePull(e Execer, repoAt syntax.ATURI, pullId int) error { err := SetPullState(e, repoAt, pullId, PullMerged) return err}
func DeletePull(e Execer, repoAt syntax.ATURI, pullId int) error { err := SetPullState(e, repoAt, pullId, PullDeleted) return err}
func ResubmitPull(e Execer, pull *Pull, newPatch, sourceRev string) error { newRoundNumber := len(pull.Submissions) _, err := e.Exec(` insert into pull_submissions (pull_id, repo_at, round_number, patch, source_rev) values (?, ?, ?, ?, ?) `, pull.PullId, pull.RepoAt, newRoundNumber, newPatch, sourceRev)
return err}
func SetPullParentChangeId(e Execer, parentChangeId string, filters ...filter) error { var conditions []string var args []any
args = append(args, parentChangeId)
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 parent_change_id = ? %s", whereClause) _, err := e.Exec(query, args...)
return err}
// Only used when stacking to update contents in the event of a rebase (the interdiff should be empty).// otherwise submissions are immutablefunc UpdatePull(e Execer, newPatch, sourceRev string, filters ...filter) error { var conditions []string var args []any
args = append(args, sourceRev) args = append(args, newPatch)
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 pull_submissions set source_rev = ?, patch = ? %s", whereClause) _, err := e.Exec(query, args...)
return err}
type PullCount struct { Open int Merged int Closed int Deleted int}
func GetPullCount(e Execer, repoAt syntax.ATURI) (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_at = ?`, PullOpen, PullMerged, PullClosed, PullDeleted, repoAt, )
var count PullCount if err := row.Scan(&count.Open, &count.Merged, &count.Closed, &count.Deleted); err != nil { return PullCount{0, 0, 0, 0}, err }
return count, nil}
type Stack []*Pull
// change-id parent-change-id//// 4 w ,-------- z (TOP)// 3 z <----',------- y// 2 y <-----',------ x// 1 x <------' nil (BOT)//// `w` is parent of none, so it is the top of the stackfunc GetStack(e Execer, stackId string) (Stack, error) { unorderedPulls, err := GetPulls( e, FilterEq("stack_id", stackId), FilterNotEq("state", PullDeleted), ) if err != nil { return nil, err } // map of parent-change-id to pull changeIdMap := make(map[string]*Pull, len(unorderedPulls)) parentMap := make(map[string]*Pull, len(unorderedPulls)) for _, p := range unorderedPulls { changeIdMap[p.ChangeId] = p if p.ParentChangeId != "" { parentMap[p.ParentChangeId] = p } }
// the top of the stack is the pull that is not a parent of any pull var topPull *Pull for _, maybeTop := range unorderedPulls { if _, ok := parentMap[maybeTop.ChangeId]; !ok { topPull = maybeTop break } }
pulls := []*Pull{} for { pulls = append(pulls, topPull) if topPull.ParentChangeId != "" { if next, ok := changeIdMap[topPull.ParentChangeId]; ok { topPull = next } else { return nil, fmt.Errorf("failed to find parent pull request, stack is malformed") } } else { break } }
return pulls, nil}
func GetAbandonedPulls(e Execer, stackId string) ([]*Pull, error) { pulls, err := GetPulls( e, FilterEq("stack_id", stackId), FilterEq("state", PullDeleted), ) if err != nil { return nil, err }
return pulls, nil}
// position of this pull in the stackfunc (stack Stack) Position(pull *Pull) int { return slices.IndexFunc(stack, func(p *Pull) bool { return p.ChangeId == pull.ChangeId })}
// all pulls below this pull (including self) in this stack//// nil if this pull does not belong to this stackfunc (stack Stack) Below(pull *Pull) Stack { position := stack.Position(pull)
if position < 0 { return nil }
return stack[position:]}
// all pulls below this pull (excluding self) in this stackfunc (stack Stack) StrictlyBelow(pull *Pull) Stack { below := stack.Below(pull)
if len(below) > 0 { return below[1:] }
return nil}
// all pulls above this pull (including self) in this stackfunc (stack Stack) Above(pull *Pull) Stack { position := stack.Position(pull)
if position < 0 { return nil }
return stack[:position+1]}
// all pulls below this pull (excluding self) in this stackfunc (stack Stack) StrictlyAbove(pull *Pull) Stack { above := stack.Above(pull)
if len(above) > 0 { return above[:len(above)-1] }
return nil}
// the combined format-patches of all the newest submissions in this stackfunc (stack Stack) CombinedPatch() string { // go in reverse order because the bottom of the stack is the last element in the slice var combined strings.Builder for idx := range stack { pull := stack[len(stack)-1-idx] combined.WriteString(pull.LatestPatch()) combined.WriteString("\n") } return combined.String()}
// filter out PRs that are "active"//// PRs that are still open are activefunc (stack Stack) Mergeable() Stack { var mergeable Stack
for _, p := range stack { // stop at the first merged PR if p.State == PullMerged || p.State == PullClosed { break }
// skip over deleted PRs if p.State != PullDeleted { mergeable = append(mergeable, p) } }
return mergeable}