all: sync with master

internal/permcheck/migrate_unix.go

@@ -0,0 +1,66 @@
+//go:build unix
+
+package permcheck
+
+import (
+	"context"
+	"log/slog"
+	"os"
+
+	"github.com/AdguardTeam/AdGuardHome/internal/aghos"
+	"github.com/AdguardTeam/golibs/errors"
+	"github.com/AdguardTeam/golibs/logutil/slogutil"
+)
+
+// needsMigration is a Unix-specific implementation of [NeedsMigration].
+//
+// TODO(a.garipov):  Consider ways to detect this better.
+func needsMigration(ctx context.Context, l *slog.Logger, _, confFilePath string) (ok bool) {
+	s, err := os.Stat(confFilePath)
+	if err != nil {
+		if errors.Is(err, os.ErrNotExist) {
+			// Likely a first run.  Don't check.
+			return false
+		}
+
+		l.ErrorContext(ctx, "checking a need for permission migration", slogutil.KeyError, err)
+
+		// Unexpected error.  Try to migrate just in case.
+		return true
+	}
+
+	return s.Mode().Perm() != aghos.DefaultPermFile
+}
+
+// migrate is a Unix-specific implementation of [Migrate].
+func migrate(
+	ctx context.Context,
+	l *slog.Logger,
+	workDir string,
+	dataDir string,
+	statsDir string,
+	querylogDir string,
+	confFilePath string,
+) {
+	dirLoggger, fileLogger := l.With("type", typeDir), l.With("type", typeFile)
+
+	for _, ent := range entities(workDir, dataDir, statsDir, querylogDir, confFilePath) {
+		if ent.Value {
+			chmodDir(ctx, dirLoggger, ent.Key)
+		} else {
+			chmodFile(ctx, fileLogger, ent.Key)
+		}
+	}
+}
+
+// chmodDir changes the permissions of a single directory.  The results are
+// logged at the appropriate level.
+func chmodDir(ctx context.Context, l *slog.Logger, dirPath string) {
+	chmodPath(ctx, l, dirPath, aghos.DefaultPermDir)
+}
+
+// chmodFile changes the permissions of a single file.  The results are logged
+// at the appropriate level.
+func chmodFile(ctx context.Context, l *slog.Logger, filePath string) {
+	chmodPath(ctx, l, filePath, aghos.DefaultPermFile)
+}