internal/store/mrs.go
354 lines · 11278 bytes
1package store
2
3import (
4 "database/sql"
5 "errors"
6 "strings"
7)
8
9type MR struct {
10 ID int64
11 RepoID int64
12 Number int64
13 Author string
14 SourceRepoID int64 // 0 when the source repo is gone
15 SourcePath string // owner/name of source repo, "" when gone
16 SourceRef string
17 TargetRef string
18 Title string
19 Body string
20 BodyFormat string // md | org
21 State string // open | merged | closed | source_gone
22 Milestone string
23 HeadSHA string
24 MergedBase string // target tip at merge time; base for historical diffs
25 MergedAt string // "" unless merged
26 MergedBy string // "" when unknown (imports) or the account is gone
27 ClosedAt string // "" unless closed without merging
28 ClosedBy string
29 CreatedAt string
30 UpdatedAt string
31}
32
33type MRReview struct {
34 Reviewer string
35 Verdict string
36 HeadSHA string
37 Stale bool
38 CreatedAt string
39}
40
41func (s *Store) CreateMR(repoID, authorID, sourceRepoID int64, sourceRef, targetRef, title, body, headSHA, format string) (int64, error) {
42 tx, err := s.DB.Begin()
43 if err != nil {
44 return 0, err
45 }
46 defer tx.Rollback()
47 if _, err := tx.Exec("UPDATE repos SET mr_counter = mr_counter + 1 WHERE id = ?", repoID); err != nil {
48 return 0, err
49 }
50 var n int64
51 if err := tx.QueryRow("SELECT mr_counter FROM repos WHERE id = ?", repoID).Scan(&n); err != nil {
52 return 0, err
53 }
54 if _, err := tx.Exec(`
55 INSERT INTO merge_requests (repo_id, number, author_id, source_repo_id, source_ref, target_ref, title, body, head_sha, body_format)
56 VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
57 repoID, n, authorID, sourceRepoID, sourceRef, targetRef, title, body, headSHA, format); err != nil {
58 return 0, err
59 }
60 return n, tx.Commit()
61}
62
63const mrSelect = `
64 SELECT m.id, m.repo_id, m.number, u.username,
65 COALESCE(m.source_repo_id, 0),
66 COALESCE(COALESCE(su.username, so.name) || '/' || sr.name, ''),
67 m.source_ref, m.target_ref, m.title, m.body, m.body_format, m.state,
68 COALESCE(ms.title, ''), m.head_sha,
69 m.merged_base, m.merged_at, COALESCE(mu.username, ''),
70 m.closed_at, COALESCE(cu.username, ''), m.created_at, m.updated_at
71 FROM merge_requests m
72 JOIN users u ON u.id = m.author_id
73 LEFT JOIN users mu ON mu.id = m.merged_by
74 LEFT JOIN users cu ON cu.id = m.closed_by
75 LEFT JOIN repos sr ON sr.id = m.source_repo_id
76 LEFT JOIN users su ON sr.owner_kind = 'user' AND su.id = sr.owner_id
77 LEFT JOIN orgs so ON sr.owner_kind = 'org' AND so.id = sr.owner_id
78 LEFT JOIN milestones ms ON ms.id = m.milestone_id`
79
80func scanMR(row interface{ Scan(...any) error }) (MR, error) {
81 var m MR
82 err := row.Scan(&m.ID, &m.RepoID, &m.Number, &m.Author, &m.SourceRepoID, &m.SourcePath,
83 &m.SourceRef, &m.TargetRef, &m.Title, &m.Body, &m.BodyFormat, &m.State, &m.Milestone, &m.HeadSHA, &m.MergedBase,
84 &m.MergedAt, &m.MergedBy, &m.ClosedAt, &m.ClosedBy, &m.CreatedAt, &m.UpdatedAt)
85 return m, err
86}
87
88func (s *Store) MRByNumber(repoID, number int64) (MR, error) {
89 m, err := scanMR(s.DB.QueryRow(mrSelect+" WHERE m.repo_id = ? AND m.number = ?", repoID, number))
90 if errors.Is(err, sql.ErrNoRows) {
91 return m, ErrNotFound
92 }
93 return m, err
94}
95
96// ListMRs returns merge requests for a repo. limit 0 means everything;
97// before (an MR number) starts the page strictly below it, matching the
98// number-descending order.
99func (s *Store) ListMRs(repoID int64, state string, limit int, before int64) ([]MR, error) {
100 q := mrSelect + " WHERE m.repo_id = ?"
101 args := []any{repoID}
102 if state != "all" {
103 q += " AND m.state = ?"
104 args = append(args, state)
105 }
106 if before > 0 {
107 q += " AND m.number < ?"
108 args = append(args, before)
109 }
110 q += " ORDER BY m.number DESC"
111 if limit > 0 {
112 q += " LIMIT ?"
113 args = append(args, limit)
114 }
115 rows, err := s.DB.Query(q, args...)
116 if err != nil {
117 return nil, err
118 }
119 defer rows.Close()
120 var out []MR
121 for rows.Next() {
122 m, err := scanMR(rows)
123 if err != nil {
124 return nil, err
125 }
126 out = append(out, m)
127 }
128 return out, rows.Err()
129}
130
131// OpenMRsBySource returns open (and source_gone) MRs fed by the given source
132// repo branch — the cross-repo hook effect consults this.
133func (s *Store) OpenMRsBySource(sourceRepoID int64, sourceRef string) ([]MR, error) {
134 rows, err := s.DB.Query(
135 mrSelect+" WHERE m.source_repo_id = ? AND m.source_ref = ? AND m.state IN ('open','source_gone')",
136 sourceRepoID, sourceRef)
137 if err != nil {
138 return nil, err
139 }
140 defer rows.Close()
141 var out []MR
142 for rows.Next() {
143 m, err := scanMR(rows)
144 if err != nil {
145 return nil, err
146 }
147 out = append(out, m)
148 }
149 return out, rows.Err()
150}
151
152// MarkMerged records the merge along with the target tip it landed on, so
153// the MR's diff stays reconstructable after fast-forwards. actorID 0 and an
154// empty at leave the merger unknown and stamp the current time, which is
155// what an import that carries neither can say.
156func (s *Store) MarkMerged(mrID int64, baseSHA string, actorID int64, at string) error {
157 _, err := s.DB.Exec(
158 `UPDATE merge_requests SET state = 'merged', merged_base = ?,
159 merged_at = COALESCE(NULLIF(?, ''), strftime('%Y-%m-%dT%H:%M:%fZ','now')),
160 merged_by = NULLIF(?, 0),
161 updated_at = strftime('%Y-%m-%dT%H:%M:%fZ','now') WHERE id = ?`,
162 baseSHA, at, actorID, mrID)
163 return err
164}
165
166// MarkClosed is MarkMerged's counterpart for a merge request closed without
167// merging.
168func (s *Store) MarkClosed(mrID, actorID int64, at string) error {
169 _, err := s.DB.Exec(
170 `UPDATE merge_requests SET state = 'closed',
171 closed_at = COALESCE(NULLIF(?, ''), strftime('%Y-%m-%dT%H:%M:%fZ','now')),
172 closed_by = NULLIF(?, 0),
173 updated_at = strftime('%Y-%m-%dT%H:%M:%fZ','now') WHERE id = ?`,
174 at, actorID, mrID)
175 return err
176}
177
178// SetMRState moves an MR between states that carry no resolution stamp.
179// Returning to open (a source branch that came back) clears one.
180func (s *Store) SetMRState(mrID int64, state string) error {
181 stamp := ""
182 if state == "open" || state == "source_gone" {
183 stamp = ", merged_at = '', merged_by = NULL, closed_at = '', closed_by = NULL"
184 }
185 res, err := s.DB.Exec(
186 "UPDATE merge_requests SET state = ?"+stamp+", updated_at = strftime('%Y-%m-%dT%H:%M:%fZ','now') WHERE id = ?",
187 state, mrID)
188 if err != nil {
189 return err
190 }
191 if n, _ := res.RowsAffected(); n == 0 {
192 return ErrNotFound
193 }
194 return nil
195}
196
197// UpdateMRHead records a new head and marks every review at another head
198// stale, in one transaction.
199func (s *Store) UpdateMRHead(mrID int64, headSHA string) error {
200 tx, err := s.DB.Begin()
201 if err != nil {
202 return err
203 }
204 defer tx.Rollback()
205 if _, err := tx.Exec(
206 "UPDATE merge_requests SET head_sha = ?, updated_at = strftime('%Y-%m-%dT%H:%M:%fZ','now') WHERE id = ?",
207 headSHA, mrID); err != nil {
208 return err
209 }
210 if _, err := tx.Exec(
211 "UPDATE mr_reviews SET stale = 1 WHERE mr_id = ? AND head_sha <> ?", mrID, headSHA); err != nil {
212 return err
213 }
214 return tx.Commit()
215}
216
217// SetMRTarget retargets a merge request and marks every existing review
218// stale, in one transaction. The base of the diff is derived from the
219// target on every read, so nothing else has to move; an approval,
220// though, was of the diff against the old branch.
221func (s *Store) SetMRTarget(mrID int64, targetRef string) error {
222 tx, err := s.DB.Begin()
223 if err != nil {
224 return err
225 }
226 defer tx.Rollback()
227 res, err := tx.Exec(
228 "UPDATE merge_requests SET target_ref = ?, updated_at = strftime('%Y-%m-%dT%H:%M:%fZ','now') WHERE id = ?",
229 targetRef, mrID)
230 if err != nil {
231 return err
232 }
233 if n, _ := res.RowsAffected(); n == 0 {
234 return ErrNotFound
235 }
236 if _, err := tx.Exec("UPDATE mr_reviews SET stale = 1 WHERE mr_id = ?", mrID); err != nil {
237 return err
238 }
239 return tx.Commit()
240}
241
242// MarkSourceGoneForRepo flags every open MR sourced from the repo; called
243// when a fork is deleted. Head refs in the target repos are retained.
244func (s *Store) MarkSourceGoneForRepo(sourceRepoID int64) error {
245 _, err := s.DB.Exec(
246 "UPDATE merge_requests SET state = 'source_gone', updated_at = strftime('%Y-%m-%dT%H:%M:%fZ','now') WHERE source_repo_id = ? AND state = 'open'",
247 sourceRepoID)
248 return err
249}
250
251func (s *Store) AddMRComment(mrID, authorID int64, body, format string) error {
252 _, err := s.DB.Exec(
253 "INSERT INTO mr_comments (mr_id, author_id, body, body_format) VALUES (?, ?, ?, ?)",
254 mrID, authorID, body, format)
255 return err
256}
257
258// UpdateMRText edits title, body, and/or markup format; nil leaves a field
259// unchanged.
260func (s *Store) UpdateMRText(mrID int64, title, body, format *string) error {
261 set, args := []string{}, []any{}
262 if title != nil {
263 set, args = append(set, "title = ?"), append(args, *title)
264 }
265 if body != nil {
266 set, args = append(set, "body = ?"), append(args, *body)
267 }
268 if format != nil {
269 set, args = append(set, "body_format = ?"), append(args, *format)
270 }
271 if len(set) == 0 {
272 return nil
273 }
274 set = append(set, "updated_at = strftime('%Y-%m-%dT%H:%M:%fZ','now')")
275 args = append(args, mrID)
276 res, err := s.DB.Exec("UPDATE merge_requests SET "+strings.Join(set, ", ")+" WHERE id = ?", args...)
277 if err != nil {
278 return err
279 }
280 if n, _ := res.RowsAffected(); n == 0 {
281 return ErrNotFound
282 }
283 return nil
284}
285
286// AddMRSystemComment is the informational counterpart of AddMRComment.
287func (s *Store) AddMRSystemComment(mrID, actorID int64, body string) error {
288 _, err := s.DB.Exec(
289 "INSERT INTO mr_comments (mr_id, author_id, body, kind) VALUES (?, ?, ?, 'system')",
290 mrID, actorID, body)
291 return err
292}
293
294func (s *Store) ListMRComments(mrID int64) ([]IssueComment, error) {
295 rows, err := s.DB.Query(`
296 SELECT CASE WHEN c.kind = 'system' THEN 'system' ELSE u.username END,
297 c.body, c.body_format, c.created_at, c.kind
298 FROM mr_comments c JOIN users u ON u.id = c.author_id
299 WHERE c.mr_id = ? ORDER BY c.id`, mrID)
300 if err != nil {
301 return nil, err
302 }
303 defer rows.Close()
304 var out []IssueComment
305 for rows.Next() {
306 var c IssueComment
307 if err := rows.Scan(&c.Author, &c.Body, &c.BodyFormat, &c.CreatedAt, &c.Kind); err != nil {
308 return nil, err
309 }
310 out = append(out, c)
311 }
312 return out, rows.Err()
313}
314
315func (s *Store) AddMRReview(mrID, reviewerID int64, verdict, headSHA string) error {
316 _, err := s.DB.Exec(
317 "INSERT INTO mr_reviews (mr_id, reviewer_id, verdict, head_sha) VALUES (?, ?, ?, ?)",
318 mrID, reviewerID, verdict, headSHA)
319 return err
320}
321
322func (s *Store) ListMRReviews(mrID int64) ([]MRReview, error) {
323 rows, err := s.DB.Query(`
324 SELECT u.username, r.verdict, r.head_sha, r.stale, r.created_at
325 FROM mr_reviews r JOIN users u ON u.id = r.reviewer_id
326 WHERE r.mr_id = ? ORDER BY r.id`, mrID)
327 if err != nil {
328 return nil, err
329 }
330 defer rows.Close()
331 var out []MRReview
332 for rows.Next() {
333 var r MRReview
334 var stale int
335 if err := rows.Scan(&r.Reviewer, &r.Verdict, &r.HeadSHA, &stale, &r.CreatedAt); err != nil {
336 return nil, err
337 }
338 r.Stale = stale != 0
339 out = append(out, r)
340 }
341 return out, rows.Err()
342}
343
344// PrimaryVerifiedEmail returns the user's primary email if verified, else "".
345func (s *Store) PrimaryVerifiedEmail(userID int64) (string, error) {
346 var addr string
347 err := s.DB.QueryRow(
348 "SELECT address FROM emails WHERE user_id = ? AND is_primary = 1 AND verified_at IS NOT NULL",
349 userID).Scan(&addr)
350 if errors.Is(err, sql.ErrNoRows) {
351 return "", nil
352 }
353 return addr, err
354}