internal/store/repos.go
272 lines · 8354 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}
32
33// Path returns the canonical owner/name form.
34func (r Repo) Path() string { return r.OwnerName + "/" + r.Name }
35
36func (s *Store) CreateRepo(ownerKind string, ownerID int64, name, visibility string) (int64, error) {
37 res, err := s.DB.Exec(
38 "INSERT INTO repos (owner_kind, owner_id, name, visibility) VALUES (?, ?, ?, ?)",
39 ownerKind, ownerID, name, visibility)
40 if err != nil {
41 if isUniqueErr(err) {
42 return 0, fmt.Errorf("repository %q already exists", name)
43 }
44 return 0, err
45 }
46 return res.LastInsertId()
47}
48
49// repoSelect resolves the owner name from whichever table owns the repo.
50const repoSelect = `
51 SELECT r.id, r.owner_kind, r.owner_id, COALESCE(u.username, o.name),
52 r.name, r.visibility, r.default_branch, COALESCE(r.fork_of, 0), r.settings_json
53 FROM repos r
54 LEFT JOIN users u ON r.owner_kind = 'user' AND u.id = r.owner_id
55 LEFT JOIN orgs o ON r.owner_kind = 'org' AND o.id = r.owner_id`
56
57func scanRepo(row interface{ Scan(...any) error }) (Repo, error) {
58 var r Repo
59 var settingsJSON string
60 err := row.Scan(&r.ID, &r.OwnerKind, &r.OwnerID, &r.OwnerName, &r.Name, &r.Visibility, &r.DefaultBranch, &r.ForkOf, &settingsJSON)
61 if err != nil {
62 return r, err
63 }
64 if err := json.Unmarshal([]byte(settingsJSON), &r.Settings); err != nil {
65 return r, fmt.Errorf("repo %d settings: %w", r.ID, err)
66 }
67 return r, nil
68}
69
70// RepoByPath resolves "owner/name"; the owner may be a user or an org.
71func (s *Store) RepoByPath(path string) (Repo, error) {
72 owner, name, ok := strings.Cut(strings.TrimSuffix(strings.TrimPrefix(path, "/"), ".git"), "/")
73 if !ok || owner == "" || name == "" || strings.Contains(name, "/") {
74 return Repo{}, fmt.Errorf("%w: repository path must be owner/name", ErrNotFound)
75 }
76 r, err := scanRepo(s.DB.QueryRow(
77 repoSelect+" WHERE COALESCE(u.username, o.name) = ? AND r.name = ?", owner, name))
78 if errors.Is(err, sql.ErrNoRows) {
79 return Repo{}, ErrNotFound
80 }
81 return r, err
82}
83
84func (s *Store) SetRepoSettings(repoID int64, settings RepoSettings) error {
85 raw, err := json.Marshal(settings)
86 if err != nil {
87 return err
88 }
89 _, err = s.DB.Exec("UPDATE repos SET settings_json = ? WHERE id = ?", string(raw), repoID)
90 return err
91}
92
93func (s *Store) SetForkOf(repoID, parentID int64) error {
94 _, err := s.DB.Exec("UPDATE repos SET fork_of = ? WHERE id = ?", parentID, repoID)
95 return err
96}
97
98func (s *Store) DeleteRepo(repoID int64) error {
99 res, err := s.DB.Exec("DELETE FROM repos WHERE id = ?", repoID)
100 if err != nil {
101 return err
102 }
103 if n, _ := res.RowsAffected(); n == 0 {
104 return ErrNotFound
105 }
106 return nil
107}
108
109// ListReposForUser returns repos the user owns, belongs to through an org,
110// or has an explicit grant on.
111func (s *Store) ListReposForUser(userID int64) ([]Repo, error) {
112 rows, err := s.DB.Query(repoSelect+`
113 LEFT JOIN repo_access a ON a.repo_id = r.id AND a.subject_kind = 'user' AND a.subject_id = ?
114 LEFT JOIN org_members m ON r.owner_kind = 'org' AND m.org_id = r.owner_id AND m.user_id = ?
115 WHERE (r.owner_kind = 'user' AND r.owner_id = ?) OR a.subject_id IS NOT NULL OR m.user_id IS NOT NULL
116 GROUP BY r.id
117 ORDER BY 4, r.name`, userID, userID, userID)
118 if err != nil {
119 return nil, err
120 }
121 defer rows.Close()
122 var out []Repo
123 for rows.Next() {
124 r, err := scanRepo(rows)
125 if err != nil {
126 return nil, err
127 }
128 out = append(out, r)
129 }
130 return out, rows.Err()
131}
132
133// AccessRole returns the user's effective role on the repo ("" if none):
134// the strongest of any explicit grant and, for org-owned repos, the role
135// derived from org membership (org admin -> admin, org member -> write).
136func (s *Store) AccessRole(repoID, userID int64) (string, error) {
137 rank := map[string]int{"": 0, "read": 1, "write": 2, "admin": 3}
138 best := ""
139
140 var explicit string
141 err := s.DB.QueryRow(
142 "SELECT role FROM repo_access WHERE repo_id = ? AND subject_kind = 'user' AND subject_id = ?",
143 repoID, userID).Scan(&explicit)
144 if err != nil && !errors.Is(err, sql.ErrNoRows) {
145 return "", err
146 }
147 if rank[explicit] > rank[best] {
148 best = explicit
149 }
150
151 var orgRole string
152 err = s.DB.QueryRow(`
153 SELECT m.role FROM repos r
154 JOIN org_members m ON r.owner_kind = 'org' AND m.org_id = r.owner_id AND m.user_id = ?
155 WHERE r.id = ?`, userID, repoID).Scan(&orgRole)
156 if err != nil && !errors.Is(err, sql.ErrNoRows) {
157 return "", err
158 }
159 derived := map[string]string{"admin": "admin", "member": "write"}[orgRole]
160 if rank[derived] > rank[best] {
161 best = derived
162 }
163 return best, nil
164}
165
166func (s *Store) GrantAccess(repoID, userID int64, role string) error {
167 _, err := s.DB.Exec(`
168 INSERT INTO repo_access (repo_id, subject_kind, subject_id, role) VALUES (?, 'user', ?, ?)
169 ON CONFLICT (repo_id, subject_kind, subject_id) DO UPDATE SET role = excluded.role`,
170 repoID, userID, role)
171 return err
172}
173
174func (s *Store) RevokeAccess(repoID, userID int64) error {
175 res, err := s.DB.Exec(
176 "DELETE FROM repo_access WHERE repo_id = ? AND subject_kind = 'user' AND subject_id = ?",
177 repoID, userID)
178 if err != nil {
179 return err
180 }
181 if n, _ := res.RowsAffected(); n == 0 {
182 return ErrNotFound
183 }
184 return nil
185}
186
187type AccessEntry struct {
188 Username string
189 Role string
190}
191
192func (s *Store) ListAccess(repoID int64) ([]AccessEntry, error) {
193 rows, err := s.DB.Query(`
194 SELECT u.username, a.role FROM repo_access a
195 JOIN users u ON a.subject_kind = 'user' AND u.id = a.subject_id
196 WHERE a.repo_id = ? ORDER BY u.username`, repoID)
197 if err != nil {
198 return nil, err
199 }
200 defer rows.Close()
201 var out []AccessEntry
202 for rows.Next() {
203 var e AccessEntry
204 if err := rows.Scan(&e.Username, &e.Role); err != nil {
205 return nil, err
206 }
207 out = append(out, e)
208 }
209 return out, rows.Err()
210}
211
212func (s *Store) RepoByID(id int64) (Repo, error) {
213 r, err := scanRepo(s.DB.QueryRow(repoSelect+" WHERE r.id = ?", id))
214 if errors.Is(err, sql.ErrNoRows) {
215 return Repo{}, ErrNotFound
216 }
217 return r, err
218}
219
220// ListPublicRepos returns all public repositories, for the anonymous index.
221func (s *Store) ListPublicRepos() ([]Repo, error) {
222 rows, err := s.DB.Query(repoSelect + " WHERE r.visibility = 'public' ORDER BY 4, r.name")
223 if err != nil {
224 return nil, err
225 }
226 defer rows.Close()
227 var out []Repo
228 for rows.Next() {
229 r, err := scanRepo(rows)
230 if err != nil {
231 return nil, err
232 }
233 out = append(out, r)
234 }
235 return out, rows.Err()
236}
237
238func (s *Store) UpdateDefaultBranch(repoID int64, branch string) error {
239 _, err := s.DB.Exec("UPDATE repos SET default_branch = ? WHERE id = ?", branch, repoID)
240 return err
241}
242
243// ListReposForOwner returns every repo owned by one user or org; the caller
244// filters by viewer visibility.
245func (s *Store) ListReposForOwner(ownerKind string, ownerID int64) ([]Repo, error) {
246 rows, err := s.DB.Query(repoSelect+" WHERE r.owner_kind = ? AND r.owner_id = ? ORDER BY r.name",
247 ownerKind, ownerID)
248 if err != nil {
249 return nil, err
250 }
251 defer rows.Close()
252 var out []Repo
253 for rows.Next() {
254 r, err := scanRepo(rows)
255 if err != nil {
256 return nil, err
257 }
258 out = append(out, r)
259 }
260 return out, rows.Err()
261}
262
263// TransferRepo moves a repository to a new owner. The unique index on
264// (owner_kind, owner_id, name) refuses collisions in the target namespace.
265func (s *Store) TransferRepo(repoID int64, newKind string, newOwnerID int64) error {
266 _, err := s.DB.Exec("UPDATE repos SET owner_kind = ?, owner_id = ? WHERE id = ?",
267 newKind, newOwnerID, repoID)
268 if isUniqueErr(err) {
269 return fmt.Errorf("the target owner already has a repository by that name")
270 }
271 return err
272}