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App: Add option to restore database when a DB error occurs at startup
Test / Run tests (push) Successful in 2m12s
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lorenz.stechauner
2026-08-26 12:01:03 +02:00
parent c1690bf104
commit cadac4302d
5 changed files with 81 additions and 30 deletions
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Elwig/Helpers/Extensions.cs
+35 -3
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@@ -135,11 +135,39 @@ namespace Elwig.Helpers {
return await cmd.ExecuteScalarAsync();
}
public static async Task<(string Table, long RowId, string Parent, long FkId)[]> ForeignKeyCheck(this SqliteConnection cnx) {
public static async Task QuickCheck(this SqliteConnection cnx) {
using var cmd = cnx.CreateCommand();
cmd.CommandText = "PRAGMA quick_check";
using var reader = await cmd.ExecuteReaderAsync();
var list = new List<string>();
while (await reader.ReadAsync()) {
list.Add(reader.GetString(0));
}
if (list.Count != 1 || list[0] != "ok") {
throw new FileFormatException($"Integrity problems ({list.Count}):\n" + string.Join("\n", list.Take(50)));
}
}
public static async Task IntegrityCheck(this SqliteConnection cnx) {
using var cmd = cnx.CreateCommand();
cmd.CommandText = "PRAGMA integrity_check";
using var reader = await cmd.ExecuteReaderAsync();
var list = new List<string>();
while (await reader.ReadAsync()) {
list.Add(reader.GetString(0));
}
if (list.Count != 1 || list[0] != "ok") {
throw new FileFormatException($"Integrity problems ({list.Count}):\n" + string.Join("\n", list.Take(50)));
}
}
public static async Task ForeignKeyCheck(this SqliteConnection cnx) {
using var cmd = cnx.CreateCommand();
cmd.CommandText = "PRAGMA foreign_key_check";
using var reader = await cmd.ExecuteReaderAsync();
var list = new List<(string, long, string, long)>();
var list = new List<(string Table, long RowId, string Parent, long FkId)>();
while (await reader.ReadAsync()) {
var table = reader.GetString(0);
var rowid = reader.GetInt64(1);
@@ -147,7 +175,11 @@ namespace Elwig.Helpers {
var fkid = reader.GetInt64(3);
list.Add((table, rowid, parent, fkid));
}
return [.. list];
if (list.Count > 0) {
throw new InvalidDataException($"Foreign key violations ({list.Count}):\n" + string.Join("\n", list.Take(50)
.Select(v => $"{v.Table} - {v.RowId} - {v.Parent} - {v.FkId}")));
}
}
public static IEnumerable<T> Join<T>(this IEnumerable<T> src, Func<T> separatorFactory) {