Remediate all lint findings under the canonical golangci-lint config

Fix every finding surfaced by the canonical .golangci.yml with
golangci-lint v2.12.2 (refs #61), behavior-preserving throughout:

- err113: dynamic errors replaced with package-level sentinels and %w
  wrapping; direct comparisons converted to errors.Is
- goprintffuncname: printf-style helpers renamed with an f suffix
  (ui.Writer message methods, cli.ReportErrorf, database.Fatalf,
  vaultik stdoutf) and all call sites updated
- revive: stuttering type names renamed (blob.Handler, blob.WithReader,
  blob.ChunkPosition, storage.URL, storage.Info), doc comments added,
  unused parameters blanked, package comments added
- contextcheck/noctx: ctx threaded through blob.Packer
  (AddChunk/Flush/FinalizeBlob/PackChunks) and scanner call sites;
  context-aware exec and sql variants used
- funlen/cyclop/gocognit/nestif/dupl: oversized or duplicated
  functions split into focused helpers across production and test code
- paralleltest/tparallel/thelper/usetesting/testpackage: tests
  parallelized where safe (global log.Initialize kept in the serial
  phase), helpers marked, t.TempDir adopted, external test packages
  where only exported API is used
- gosec: integer conversions clamped or justified, header timeouts
  added, remaining findings suppressed with per-site justifications
- mnd/goconst/lll/wsl_v5/nlreturn/noinlineerr/errcheck and other
  mechanical findings fixed directly

Remove the deprecated log.LogOptions alias (callers migrated to
log.Options). make check is green.
This commit is contained in:
2026-08-07 18:51:21 +00:00
parent 6cf9211407
commit 7ae470e530
121 changed files with 8344 additions and 5406 deletions

View File

@@ -15,6 +15,7 @@ import (
"context"
"database/sql"
"embed"
"errors"
"fmt"
"os"
"path/filepath"
@@ -22,10 +23,15 @@ import (
"strconv"
"strings"
// Register the pure-Go sqlite driver.
_ "modernc.org/sqlite"
"sneak.berlin/go/vaultik/internal/log"
)
// errInvalidMigrationFilename is returned when an embedded migration file
// does not follow the "<version>[_<description>].sql" naming pattern.
var errInvalidMigrationFilename = errors.New("invalid migration filename")
//go:embed schema/*.sql
var schemaFS embed.FS
@@ -51,7 +57,7 @@ type DB struct {
func ParseMigrationVersion(filename string) (int, error) {
name := strings.TrimSuffix(filename, filepath.Ext(filename))
if name == "" {
return 0, fmt.Errorf("invalid migration filename %q: empty name", filename)
return 0, fmt.Errorf("%w %q: empty name", errInvalidMigrationFilename, filename)
}
// Split on underscore to separate version from description.
@@ -62,15 +68,17 @@ func ParseMigrationVersion(filename string) (int, error) {
}
if versionStr == "" {
return 0, fmt.Errorf("invalid migration filename %q: empty version prefix", filename)
return 0, fmt.Errorf(
"%w %q: empty version prefix", errInvalidMigrationFilename, filename,
)
}
// Validate the version is purely numeric.
for _, ch := range versionStr {
if ch < '0' || ch > '9' {
return 0, fmt.Errorf(
"invalid migration filename %q: version %q contains non-numeric character %q",
filename, versionStr, string(ch),
"%w %q: version %q contains non-numeric character %q",
errInvalidMigrationFilename, filename, versionStr, string(ch),
)
}
}
@@ -101,66 +109,87 @@ func New(ctx context.Context, path string) (*DB, error) {
conn, err := sql.Open(
"sqlite",
path+"?_journal_mode=WAL&_synchronous=NORMAL&_busy_timeout=10000&_locking_mode=NORMAL&_foreign_keys=ON",
path+"?_journal_mode=WAL&_synchronous=NORMAL&_busy_timeout=10000"+
"&_locking_mode=NORMAL&_foreign_keys=ON",
)
if err == nil {
// Set connection pool settings
// SQLite can handle multiple readers but only one writer at a time.
// Setting MaxOpenConns to 1 ensures all writes are serialized through
// a single connection, preventing SQLITE_BUSY errors.
conn.SetMaxOpenConns(1)
conn.SetMaxIdleConns(1)
configureConnPool(conn)
err := conn.PingContext(ctx)
err = conn.PingContext(ctx)
if err == nil {
// Success on first try
log.Debug("Database opened successfully with WAL mode", "path", path)
// Enable foreign keys explicitly
if _, err := conn.ExecContext(ctx, "PRAGMA foreign_keys = ON"); err != nil {
log.Warn("Failed to enable foreign keys", "error", err)
}
db := &DB{conn: conn, path: path}
err := applyMigrations(ctx, conn)
if err != nil {
_ = conn.Close()
return nil, fmt.Errorf("applying migrations: %w", err)
}
return db, nil
return finishOpen(ctx, conn, path)
}
log.Debug("Failed to ping database, closing connection", "path", path, "error", err)
log.Debug(
"Failed to ping database, closing connection",
"path", path, "error", err,
)
_ = conn.Close()
}
// If first attempt failed, try with TRUNCATE mode to clear any locks
return openWithRecovery(ctx, path)
}
// configureConnPool serializes all database access through one connection.
// SQLite can handle multiple readers but only one writer at a time; setting
// MaxOpenConns to 1 ensures all writes go through a single connection,
// preventing SQLITE_BUSY errors.
func configureConnPool(conn *sql.DB) {
conn.SetMaxOpenConns(1)
conn.SetMaxIdleConns(1)
}
// finishOpen enables foreign keys, wraps the connection, and applies any
// pending migrations. On migration failure the connection is closed.
func finishOpen(ctx context.Context, conn *sql.DB, path string) (*DB, error) {
// Enable foreign keys explicitly
_, err := conn.ExecContext(ctx, "PRAGMA foreign_keys = ON")
if err != nil {
log.Warn("Failed to enable foreign keys", "path", path, "error", err)
}
db := &DB{conn: conn, path: path}
err = applyMigrations(ctx, conn)
if err != nil {
_ = conn.Close()
return nil, fmt.Errorf("applying migrations: %w", err)
}
return db, nil
}
// openWithRecovery retries opening the database in TRUNCATE journal mode to
// clear stale locks, then switches back to WAL mode.
func openWithRecovery(ctx context.Context, path string) (*DB, error) {
log.Info(
"Database appears locked, attempting recovery with TRUNCATE mode",
"path", path,
)
conn, err = sql.Open(
conn, err := sql.Open(
"sqlite",
path+"?_journal_mode=TRUNCATE&_synchronous=NORMAL&_busy_timeout=10000&_foreign_keys=ON",
path+"?_journal_mode=TRUNCATE&_synchronous=NORMAL&_busy_timeout=10000"+
"&_foreign_keys=ON",
)
if err != nil {
return nil, fmt.Errorf("opening database in recovery mode: %w", err)
}
// Set connection pool settings
// SQLite can handle multiple readers but only one writer at a time.
// Setting MaxOpenConns to 1 ensures all writes are serialized through
// a single connection, preventing SQLITE_BUSY errors.
conn.SetMaxOpenConns(1)
conn.SetMaxIdleConns(1)
configureConnPool(conn)
if err := conn.PingContext(ctx); err != nil {
log.Debug("Failed to ping database in recovery mode, closing", "path", path, "error", err)
err = conn.PingContext(ctx)
if err != nil {
log.Debug(
"Failed to ping database in recovery mode, closing",
"path", path, "error", err,
)
_ = conn.Close()
@@ -175,20 +204,14 @@ func New(ctx context.Context, path string) (*DB, error) {
// Switch back to WAL mode
log.Debug("Switching database back to WAL mode", "path", path)
if _, err := conn.ExecContext(ctx, "PRAGMA journal_mode=WAL"); err != nil {
_, err = conn.ExecContext(ctx, "PRAGMA journal_mode=WAL")
if err != nil {
log.Warn("Failed to switch back to WAL mode", "path", path, "error", err)
}
// Ensure foreign keys are enabled
if _, err := conn.ExecContext(ctx, "PRAGMA foreign_keys=ON"); err != nil {
log.Warn("Failed to enable foreign keys", "path", path, "error", err)
}
db := &DB{conn: conn, path: path}
if err := applyMigrations(ctx, conn); err != nil {
_ = conn.Close()
return nil, fmt.Errorf("applying migrations: %w", err)
db, err := finishOpen(ctx, conn, path)
if err != nil {
return nil, err
}
log.Debug("Database connection established successfully", "path", path)
@@ -196,6 +219,13 @@ func New(ctx context.Context, path string) (*DB, error) {
return db, nil
}
// NewTestDB creates an in-memory SQLite database for testing purposes.
// The database is automatically initialized with the schema and is ready
// for use. Each call creates a new independent database instance.
func NewTestDB() (*DB, error) {
return New(context.Background(), ":memory:")
}
// Close closes the database connection.
// It ensures all pending operations are completed before closing.
// Returns an error if the database connection cannot be closed properly.
@@ -253,10 +283,11 @@ func (db *DB) ExecWithLog(
return db.conn.ExecContext(ctx, query, args...)
}
// QueryRowWithLog executes a query that returns at most one row with SQL logging.
// This is useful for queries that modify data and return values (e.g., INSERT ... RETURNING).
// SQLite handles its own locking internally.
// The query and args parameters follow the same format as sql.DB.QueryRowContext.
// QueryRowWithLog executes a query that returns at most one row with SQL
// logging. This is useful for queries that modify data and return values
// (e.g., INSERT ... RETURNING). SQLite handles its own locking internally.
// The query and args parameters follow the same format as
// sql.DB.QueryRowContext.
func (db *DB) QueryRowWithLog(
ctx context.Context,
query string,
@@ -323,7 +354,8 @@ func bootstrapMigrationsTable(ctx context.Context, db *sql.DB) error {
// the schema_migrations table via 000.sql, then iterates through remaining
// migration files in order.
func applyMigrations(ctx context.Context, db *sql.DB) error {
if err := bootstrapMigrationsTable(ctx, db); err != nil {
err := bootstrapMigrationsTable(ctx, db)
if err != nil {
return err
}
@@ -383,15 +415,8 @@ func applyMigrations(ctx context.Context, db *sql.DB) error {
return nil
}
// NewTestDB creates an in-memory SQLite database for testing purposes.
// The database is automatically initialized with the schema and is ready for use.
// Each call creates a new independent database instance.
func NewTestDB() (*DB, error) {
return New(context.Background(), ":memory:")
}
// repeatPlaceholder generates a string of ", ?" repeated n times for IN clause construction.
// For example, repeatPlaceholder(2) returns ", ?, ?".
// repeatPlaceholder generates a string of ", ?" repeated n times for IN
// clause construction. For example, repeatPlaceholder(2) returns ", ?, ?".
func repeatPlaceholder(n int) string {
if n <= 0 {
return ""
@@ -401,12 +426,14 @@ func repeatPlaceholder(n int) string {
}
// LogSQL logs SQL queries and their arguments when debug mode is enabled.
// Debug mode is activated by setting the GODEBUG environment variable to include "vaultik".
// This is useful for troubleshooting database operations and understanding query patterns.
// Debug mode is activated by setting the GODEBUG environment variable to
// include "vaultik". This is useful for troubleshooting database operations
// and understanding query patterns.
//
// The operation parameter describes the type of SQL operation (e.g., "Execute", "Query").
// The query parameter is the SQL statement being executed.
// The args parameter contains the query arguments that will be interpolated.
// The operation parameter describes the type of SQL operation (e.g.,
// "Execute", "Query"). The query parameter is the SQL statement being
// executed. The args parameter contains the query arguments that will be
// interpolated.
func LogSQL(operation, query string, args ...any) {
if strings.Contains(os.Getenv("GODEBUG"), "vaultik") {
log.Debug(