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 id := fmt.Sprintf("%x", sha256.Sum256([]byte(url+name+forge+created_at)))
38 _, err = tx.Exec(
39 "INSERT INTO projects (id, url, name, forge, version, created_at) VALUES (@id, @url, @name, @forge, @version, @created_at)",
40 sql.Named("id", id),
41 sql.Named("url", url),
42 sql.Named("name", name),
43 sql.Named("forge", forge),
44 sql.Named("version", version),
45 sql.Named("created_at", created_at),
46 )
47 if err != nil {
48 return fmt.Errorf("failed to insert project into projects: %w", err)
49 }
50 }
51
52 if _, err := tx.Exec("DROP TABLE projects_tmp"); err != nil {
53 return fmt.Errorf("failed to drop projects_tmp: %w", err)
54 }
55
56 return nil
57}
58
59// Basing the project's ID on when it was created (L37) was a bad idea.
60func correctProjectIDs(tx *sql.Tx) error {
61 rows, err := tx.Query("SELECT id, url, name, forge FROM projects")
62 if err != nil {
63 return fmt.Errorf("failed to list projects in projects_tmp: %w", err)
64 }
65 defer rows.Close()
66
67 for rows.Next() {
68 var (
69 old_id string
70 url string
71 name string
72 forge string
73 )
74 if err := rows.Scan(&old_id, &url, &name, &forge); err != nil {
75 return fmt.Errorf("failed to scan row from projects_tmp: %w", err)
76 }
77 id := fmt.Sprintf("%x", sha256.Sum256([]byte(url+name+forge)))
78 _, err = tx.Exec(
79 "UPDATE projects SET id = @id WHERE id = @old_id",
80 sql.Named("id", id),
81 sql.Named("old_id", old_id),
82 )
83 if err != nil {
84 return fmt.Errorf("failed to insert project into projects: %w", err)
85 }
86 }
87
88 return nil
89}