1// SPDX-FileCopyrightText: Amolith <amolith@secluded.site>
2//
3// SPDX-License-Identifier: Apache-2.0
4
5package db
6
7import (
8 "crypto/sha256"
9 "database/sql"
10 "fmt"
11)
12
13// generateAndInsertProjectIDs runs during migration 1, fetches all rows from
14// projects_tmp, loops through the rows generating a repeatable ID for each
15// project, and inserting it into the new table along with the data from the old
16// table.
17func generateAndInsertProjectIDs(tx *sql.Tx) error {
18 // Loop through projects_tmp, generate a project_id for each, and insert
19 // into projects
20 rows, err := tx.Query("SELECT url, name, forge, version, created_at FROM projects_tmp")
21 if err != nil {
22 return fmt.Errorf("failed to list projects in projects_tmp: %w", err)
23 }
24 defer rows.Close()
25
26 for rows.Next() {
27 var (
28 url string
29 name string
30 forge string
31 version string
32 created_at string
33 )
34 if err := rows.Scan(&url, &name, &forge, &version, &created_at); err != nil {
35 return fmt.Errorf("failed to scan row from projects_tmp: %w", err)
36 }
37
38 id := fmt.Sprintf("%x", sha256.Sum256([]byte(url+name+forge+created_at)))
39
40 _, err = tx.Exec(
41 "INSERT INTO projects (id, url, name, forge, version, created_at) VALUES (@id, @url, @name, @forge, @version, @created_at)",
42 sql.Named("id", id),
43 sql.Named("url", url),
44 sql.Named("name", name),
45 sql.Named("forge", forge),
46 sql.Named("version", version),
47 sql.Named("created_at", created_at),
48 )
49 if err != nil {
50 return fmt.Errorf("failed to insert project into projects: %w", err)
51 }
52 }
53
54 if _, err := tx.Exec("DROP TABLE projects_tmp"); err != nil {
55 return fmt.Errorf("failed to drop projects_tmp: %w", err)
56 }
57
58 return nil
59}
60
61// Basing the project's ID on when it was created (L37) was a bad idea.
62func correctProjectIDs(tx *sql.Tx) error {
63 rows, err := tx.Query("SELECT id, url, name, forge FROM projects")
64 if err != nil {
65 return fmt.Errorf("failed to list projects in projects_tmp: %w", err)
66 }
67 defer rows.Close()
68
69 for rows.Next() {
70 var (
71 old_id string
72 url string
73 name string
74 forge string
75 )
76 if err := rows.Scan(&old_id, &url, &name, &forge); err != nil {
77 return fmt.Errorf("failed to scan row from projects_tmp: %w", err)
78 }
79
80 id := fmt.Sprintf("%x", sha256.Sum256([]byte(url+name+forge)))
81
82 _, err = tx.Exec(
83 "UPDATE projects SET id = @id WHERE id = @old_id",
84 sql.Named("id", id),
85 sql.Named("old_id", old_id),
86 )
87 if err != nil {
88 return fmt.Errorf("failed to insert project into projects: %w", err)
89 }
90 }
91
92 return nil
93}