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feat: upgrade to .NET 6, refactor everything

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spiral
2021-11-26 21:10:56 -05:00
parent d28e99ba43
commit 1918c56937
314 changed files with 27954 additions and 27966 deletions
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140
PluralKit.Core/Database/Utils/DatabaseMigrator.cs
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@@ -1,85 +1,81 @@
using System;
using System.Data;
using System.IO;
using System.Threading.Tasks;
using Dapper;
using Serilog;
namespace PluralKit.Core
namespace PluralKit.Core;
internal class DatabaseMigrator
{
internal class DatabaseMigrator
private const string RootPath = "PluralKit.Core.Database"; // "resource path" root for SQL files
private const int TargetSchemaVersion = 20;
private readonly ILogger _logger;
public DatabaseMigrator(ILogger logger)
{
private const string RootPath = "PluralKit.Core.Database"; // "resource path" root for SQL files
private const int TargetSchemaVersion = 20;
private readonly ILogger _logger;
_logger = logger;
}
public DatabaseMigrator(ILogger logger)
public async Task ApplyMigrations(IPKConnection conn)
{
// Run everything in a transaction
await using var tx = await conn.BeginTransactionAsync();
// Before applying migrations, clean out views/functions to prevent type errors
await ExecuteSqlFile($"{RootPath}.clean.sql", conn, tx);
// Apply all migrations between the current database version and the target version
await ApplyMigrations(conn, tx);
// Now, reapply views/functions (we deleted them above, no need to worry about conflicts)
await ExecuteSqlFile($"{RootPath}.Views.views.sql", conn, tx);
await ExecuteSqlFile($"{RootPath}.Functions.functions.sql", conn, tx);
// Finally, commit tx
await tx.CommitAsync();
}
private async Task ApplyMigrations(IPKConnection conn, IDbTransaction tx)
{
var currentVersion = await GetCurrentDatabaseVersion(conn);
_logger.Information("Current schema version: {CurrentVersion}", currentVersion);
for (var migration = currentVersion + 1; migration <= TargetSchemaVersion; migration++)
{
_logger = logger;
}
public async Task ApplyMigrations(IPKConnection conn)
{
// Run everything in a transaction
await using var tx = await conn.BeginTransactionAsync();
// Before applying migrations, clean out views/functions to prevent type errors
await ExecuteSqlFile($"{RootPath}.clean.sql", conn, tx);
// Apply all migrations between the current database version and the target version
await ApplyMigrations(conn, tx);
// Now, reapply views/functions (we deleted them above, no need to worry about conflicts)
await ExecuteSqlFile($"{RootPath}.Views.views.sql", conn, tx);
await ExecuteSqlFile($"{RootPath}.Functions.functions.sql", conn, tx);
// Finally, commit tx
await tx.CommitAsync();
}
private async Task ApplyMigrations(IPKConnection conn, IDbTransaction tx)
{
var currentVersion = await GetCurrentDatabaseVersion(conn);
_logger.Information("Current schema version: {CurrentVersion}", currentVersion);
for (var migration = currentVersion + 1; migration <= TargetSchemaVersion; migration++)
{
_logger.Information("Applying schema migration {MigrationId}", migration);
await ExecuteSqlFile($"{RootPath}.Migrations.{migration}.sql", conn, tx);
}
}
private async Task ExecuteSqlFile(string resourceName, IPKConnection conn, IDbTransaction tx = null)
{
await using var stream = typeof(Database).Assembly.GetManifestResourceStream(resourceName);
if (stream == null) throw new ArgumentException($"Invalid resource name '{resourceName}'");
using var reader = new StreamReader(stream);
var query = await reader.ReadToEndAsync();
await conn.ExecuteAsync(query, transaction: tx);
// If the above creates new enum/composite types, we must tell Npgsql to reload the internal type caches
// This will propagate to every other connection as well, since it marks the global type mapper collection dirty.
((PKConnection)conn).ReloadTypes();
}
private async Task<int> GetCurrentDatabaseVersion(IPKConnection conn)
{
// First, check if the "info" table exists (it may not, if this is a *really* old database)
var hasInfoTable =
await conn.QuerySingleOrDefaultAsync<int>(
"select count(*) from information_schema.tables where table_name = 'info'") == 1;
// If we have the table, read the schema version
if (hasInfoTable)
return await conn.QuerySingleOrDefaultAsync<int>("select schema_version from info");
// If not, we return version "-1"
// This means migration 0 will get executed, getting us into a consistent state
// Then, migration 1 gets executed, which creates the info table and sets version to 1
return -1;
_logger.Information("Applying schema migration {MigrationId}", migration);
await ExecuteSqlFile($"{RootPath}.Migrations.{migration}.sql", conn, tx);
}
}
private async Task ExecuteSqlFile(string resourceName, IPKConnection conn, IDbTransaction tx = null)
{
await using var stream = typeof(Database).Assembly.GetManifestResourceStream(resourceName);
if (stream == null) throw new ArgumentException($"Invalid resource name '{resourceName}'");
using var reader = new StreamReader(stream);
var query = await reader.ReadToEndAsync();
await conn.ExecuteAsync(query, transaction: tx);
// If the above creates new enum/composite types, we must tell Npgsql to reload the internal type caches
// This will propagate to every other connection as well, since it marks the global type mapper collection dirty.
((PKConnection)conn).ReloadTypes();
}
private async Task<int> GetCurrentDatabaseVersion(IPKConnection conn)
{
// First, check if the "info" table exists (it may not, if this is a *really* old database)
var hasInfoTable =
await conn.QuerySingleOrDefaultAsync<int>(
"select count(*) from information_schema.tables where table_name = 'info'") == 1;
// If we have the table, read the schema version
if (hasInfoTable)
return await conn.QuerySingleOrDefaultAsync<int>("select schema_version from info");
// If not, we return version "-1"
// This means migration 0 will get executed, getting us into a consistent state
// Then, migration 1 gets executed, which creates the info table and sets version to 1
return -1;
}
}