internal/store/repos.go
308 lines · 9770 bytes
1package store
2
3import (
4 "database/sql"
5 "encoding/json"
6 "errors"
7 "fmt"
8 "strings"
9)
10
11type Repo struct {
12 ID int64
13 OwnerKind string // user | org
14 OwnerID int64
15 OwnerName string // resolved for display and disk paths
16 Name string
17 Visibility string // public | private
18 DefaultBranch string
19 ForkOf int64 // 0 when not a fork
20 Settings RepoSettings
21}
22
23type RepoSettings struct {
24 ProtectedBranches []string `json:"protected_branches,omitempty"`
25 RequireSignedCommits bool `json:"require_signed_commits,omitempty"`
26 RequireChecks bool `json:"require_checks,omitempty"`
27 RequireApprovals int `json:"require_approvals,omitempty"`
28 RequireResolved bool `json:"require_resolved,omitempty"`
29 GitDaemon bool `json:"git_daemon,omitempty"`
30 Archived bool `json:"archived,omitempty"`
31 Website string `json:"website,omitempty"`
32}
33
34// Path returns the canonical owner/name form.
35func (r Repo) Path() string { return r.OwnerName + "/" + r.Name }
36
37func (s *Store) CreateRepo(ownerKind string, ownerID int64, name, visibility string) (int64, error) {
38 res, err := s.DB.Exec(
39 "INSERT INTO repos (owner_kind, owner_id, name, visibility) VALUES (?, ?, ?, ?)",
40 ownerKind, ownerID, name, visibility)
41 if err != nil {
42 if isUniqueErr(err) {
43 return 0, fmt.Errorf("repository %q already exists", name)
44 }
45 return 0, err
46 }
47 return res.LastInsertId()
48}
49
50// repoSelect resolves the owner name from whichever table owns the repo.
51const repoSelect = `
52 SELECT r.id, r.owner_kind, r.owner_id, COALESCE(u.username, o.name),
53 r.name, r.visibility, r.default_branch, COALESCE(r.fork_of, 0), r.settings_json
54 FROM repos r
55 LEFT JOIN users u ON r.owner_kind = 'user' AND u.id = r.owner_id
56 LEFT JOIN orgs o ON r.owner_kind = 'org' AND o.id = r.owner_id`
57
58func scanRepo(row interface{ Scan(...any) error }) (Repo, error) {
59 var r Repo
60 var settingsJSON string
61 err := row.Scan(&r.ID, &r.OwnerKind, &r.OwnerID, &r.OwnerName, &r.Name, &r.Visibility, &r.DefaultBranch, &r.ForkOf, &settingsJSON)
62 if err != nil {
63 return r, err
64 }
65 if err := json.Unmarshal([]byte(settingsJSON), &r.Settings); err != nil {
66 return r, fmt.Errorf("repo %d settings: %w", r.ID, err)
67 }
68 return r, nil
69}
70
71// RepoByPath resolves "owner/name"; the owner may be a user or an org.
72func (s *Store) RepoByPath(path string) (Repo, error) {
73 owner, name, ok := strings.Cut(strings.TrimSuffix(strings.TrimPrefix(path, "/"), ".git"), "/")
74 if !ok || owner == "" || name == "" || strings.Contains(name, "/") {
75 return Repo{}, fmt.Errorf("%w: repository path must be owner/name", ErrNotFound)
76 }
77 r, err := scanRepo(s.DB.QueryRow(
78 repoSelect+" WHERE COALESCE(u.username, o.name) = ? AND r.name = ?", owner, name))
79 if errors.Is(err, sql.ErrNoRows) {
80 return Repo{}, ErrNotFound
81 }
82 return r, err
83}
84
85// SetRepoVisibility switches a repository between public and private.
86func (s *Store) SetRepoVisibility(repoID int64, visibility string) error {
87 if visibility != "public" && visibility != "private" {
88 return fmt.Errorf("visibility must be public or private")
89 }
90 _, err := s.DB.Exec("UPDATE repos SET visibility = ? WHERE id = ?", visibility, repoID)
91 return err
92}
93
94func (s *Store) SetRepoSettings(repoID int64, settings RepoSettings) error {
95 raw, err := json.Marshal(settings)
96 if err != nil {
97 return err
98 }
99 _, err = s.DB.Exec("UPDATE repos SET settings_json = ? WHERE id = ?", string(raw), repoID)
100 return err
101}
102
103func (s *Store) SetForkOf(repoID, parentID int64) error {
104 _, err := s.DB.Exec("UPDATE repos SET fork_of = ? WHERE id = ?", parentID, repoID)
105 return err
106}
107
108func (s *Store) DeleteRepo(repoID int64) error {
109 res, err := s.DB.Exec("DELETE FROM repos WHERE id = ?", repoID)
110 if err != nil {
111 return err
112 }
113 if n, _ := res.RowsAffected(); n == 0 {
114 return ErrNotFound
115 }
116 return nil
117}
118
119// ListReposForUser returns repos the user owns, reaches through an org
120// (unless the org scopes members to 'none'), has an explicit grant on, or
121// reaches through a team.
122func (s *Store) ListReposForUser(userID int64) ([]Repo, error) {
123 rows, err := s.DB.Query(repoSelect+`
124 LEFT JOIN repo_access a ON a.repo_id = r.id AND a.subject_kind = 'user' AND a.subject_id = ?
125 LEFT JOIN org_members m ON r.owner_kind = 'org' AND m.org_id = r.owner_id AND m.user_id = ?
126 LEFT JOIN orgs og ON r.owner_kind = 'org' AND og.id = r.owner_id
127 WHERE (r.owner_kind = 'user' AND r.owner_id = ?)
128 OR a.subject_id IS NOT NULL
129 OR (m.user_id IS NOT NULL AND (m.role = 'admin' OR og.members_role <> 'none'))
130 OR EXISTS (SELECT 1 FROM team_repos tr
131 JOIN team_members tm ON tm.team_id = tr.team_id AND tm.user_id = ?
132 WHERE tr.repo_id = r.id)
133 GROUP BY r.id
134 ORDER BY 4, r.name`, userID, userID, userID, userID)
135 if err != nil {
136 return nil, err
137 }
138 defer rows.Close()
139 var out []Repo
140 for rows.Next() {
141 r, err := scanRepo(rows)
142 if err != nil {
143 return nil, err
144 }
145 out = append(out, r)
146 }
147 return out, rows.Err()
148}
149
150// AccessRole returns the user's effective role on the repo ("" if none):
151// the strongest of any explicit grant, the role derived from org
152// membership (org admin -> admin; plain member -> the org's members_role,
153// 'write' by default so the pre-teams model is the degenerate case), and
154// any team grants on the repo.
155func (s *Store) AccessRole(repoID, userID int64) (string, error) {
156 rank := map[string]int{"": 0, "none": 0, "read": 1, "write": 2, "admin": 3}
157 best := ""
158 better := func(role string) {
159 if rank[role] > rank[best] {
160 best = role
161 }
162 }
163
164 var explicit string
165 err := s.DB.QueryRow(
166 "SELECT role FROM repo_access WHERE repo_id = ? AND subject_kind = 'user' AND subject_id = ?",
167 repoID, userID).Scan(&explicit)
168 if err != nil && !errors.Is(err, sql.ErrNoRows) {
169 return "", err
170 }
171 better(explicit)
172
173 var orgRole, membersRole string
174 err = s.DB.QueryRow(`
175 SELECT m.role, o.members_role FROM repos r
176 JOIN org_members m ON r.owner_kind = 'org' AND m.org_id = r.owner_id AND m.user_id = ?
177 JOIN orgs o ON o.id = r.owner_id
178 WHERE r.id = ?`, userID, repoID).Scan(&orgRole, &membersRole)
179 if err != nil && !errors.Is(err, sql.ErrNoRows) {
180 return "", err
181 }
182 if orgRole == "admin" {
183 better("admin")
184 } else if orgRole == "member" {
185 better(membersRole) // write | read | none
186 }
187
188 var teamRole string
189 err = s.DB.QueryRow(`
190 SELECT tr.role FROM team_repos tr
191 JOIN team_members tm ON tm.team_id = tr.team_id AND tm.user_id = ?
192 WHERE tr.repo_id = ?
193 ORDER BY CASE tr.role WHEN 'admin' THEN 3 WHEN 'write' THEN 2 ELSE 1 END DESC
194 LIMIT 1`, userID, repoID).Scan(&teamRole)
195 if err != nil && !errors.Is(err, sql.ErrNoRows) {
196 return "", err
197 }
198 better(teamRole)
199 return best, nil
200}
201
202func (s *Store) GrantAccess(repoID, userID int64, role string) error {
203 _, err := s.DB.Exec(`
204 INSERT INTO repo_access (repo_id, subject_kind, subject_id, role) VALUES (?, 'user', ?, ?)
205 ON CONFLICT (repo_id, subject_kind, subject_id) DO UPDATE SET role = excluded.role`,
206 repoID, userID, role)
207 return err
208}
209
210func (s *Store) RevokeAccess(repoID, userID int64) error {
211 res, err := s.DB.Exec(
212 "DELETE FROM repo_access WHERE repo_id = ? AND subject_kind = 'user' AND subject_id = ?",
213 repoID, userID)
214 if err != nil {
215 return err
216 }
217 if n, _ := res.RowsAffected(); n == 0 {
218 return ErrNotFound
219 }
220 return nil
221}
222
223type AccessEntry struct {
224 Username string
225 Role string
226}
227
228func (s *Store) ListAccess(repoID int64) ([]AccessEntry, error) {
229 rows, err := s.DB.Query(`
230 SELECT u.username, a.role FROM repo_access a
231 JOIN users u ON a.subject_kind = 'user' AND u.id = a.subject_id
232 WHERE a.repo_id = ? ORDER BY u.username`, repoID)
233 if err != nil {
234 return nil, err
235 }
236 defer rows.Close()
237 var out []AccessEntry
238 for rows.Next() {
239 var e AccessEntry
240 if err := rows.Scan(&e.Username, &e.Role); err != nil {
241 return nil, err
242 }
243 out = append(out, e)
244 }
245 return out, rows.Err()
246}
247
248func (s *Store) RepoByID(id int64) (Repo, error) {
249 r, err := scanRepo(s.DB.QueryRow(repoSelect+" WHERE r.id = ?", id))
250 if errors.Is(err, sql.ErrNoRows) {
251 return Repo{}, ErrNotFound
252 }
253 return r, err
254}
255
256// ListPublicRepos returns all public repositories, for the anonymous index.
257func (s *Store) ListPublicRepos() ([]Repo, error) {
258 rows, err := s.DB.Query(repoSelect + " WHERE r.visibility = 'public' ORDER BY 4, r.name")
259 if err != nil {
260 return nil, err
261 }
262 defer rows.Close()
263 var out []Repo
264 for rows.Next() {
265 r, err := scanRepo(rows)
266 if err != nil {
267 return nil, err
268 }
269 out = append(out, r)
270 }
271 return out, rows.Err()
272}
273
274func (s *Store) UpdateDefaultBranch(repoID int64, branch string) error {
275 _, err := s.DB.Exec("UPDATE repos SET default_branch = ? WHERE id = ?", branch, repoID)
276 return err
277}
278
279// ListReposForOwner returns every repo owned by one user or org; the caller
280// filters by viewer visibility.
281func (s *Store) ListReposForOwner(ownerKind string, ownerID int64) ([]Repo, error) {
282 rows, err := s.DB.Query(repoSelect+" WHERE r.owner_kind = ? AND r.owner_id = ? ORDER BY r.name",
283 ownerKind, ownerID)
284 if err != nil {
285 return nil, err
286 }
287 defer rows.Close()
288 var out []Repo
289 for rows.Next() {
290 r, err := scanRepo(rows)
291 if err != nil {
292 return nil, err
293 }
294 out = append(out, r)
295 }
296 return out, rows.Err()
297}
298
299// TransferRepo moves a repository to a new owner. The unique index on
300// (owner_kind, owner_id, name) refuses collisions in the target namespace.
301func (s *Store) TransferRepo(repoID int64, newKind string, newOwnerID int64) error {
302 _, err := s.DB.Exec("UPDATE repos SET owner_kind = ?, owner_id = ? WHERE id = ?",
303 newKind, newOwnerID, repoID)
304 if isUniqueErr(err) {
305 return fmt.Errorf("the target owner already has a repository by that name")
306 }
307 return err
308}