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 := rows.Err(); err != nil {
55 return fmt.Errorf("failed to iterate over rows: %w", err)
56 }
57
58 if _, err := tx.Exec("DROP TABLE projects_tmp"); err != nil {
59 return fmt.Errorf("failed to drop projects_tmp: %w", err)
60 }
61
62 return nil
63}
64
65// Basing the project's ID on when it was created (L37) was a bad idea.
66func correctProjectIDs(tx *sql.Tx) error {
67 rows, err := tx.Query("SELECT id, url, name, forge FROM projects")
68 if err != nil {
69 return fmt.Errorf("failed to list projects in projects_tmp: %w", err)
70 }
71 defer rows.Close()
72
73 for rows.Next() {
74 var (
75 old_id string
76 url string
77 name string
78 forge string
79 )
80 if err := rows.Scan(&old_id, &url, &name, &forge); err != nil {
81 return fmt.Errorf("failed to scan row from projects_tmp: %w", err)
82 }
83
84 id := fmt.Sprintf("%x", sha256.Sum256([]byte(url+name+forge)))
85
86 _, err = tx.Exec(
87 "UPDATE projects SET id = @id WHERE id = @old_id",
88 sql.Named("id", id),
89 sql.Named("old_id", old_id),
90 )
91 if err != nil {
92 return fmt.Errorf("failed to insert project into projects: %w", err)
93 }
94 }
95
96 if err := rows.Err(); err != nil {
97 return fmt.Errorf("failed to iterate over rows: %w", err)
98 }
99
100 return nil
101}