Drop dependency on package:universal_io
#329
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stevensJourney
approved these changes
Sep 22, 2025
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package:powersync_corehas a dependency onpackage:universal_ioto conditionally use thesleepmethod to delay opening a database when it's locked.An issue with that package is that it exports
dart:io, which is supposed to be unavailable on the web. Most compilers (such as the configuration used by Flutter ordart compile js) overlook that and still compile code importingdart:io(using a throwing implementation at runtime). However, there are stricter toolchains (such as e.g. thebuild_web_compilerspackage commonly used for non-Flutter Dart web projects) which refuse to compile sources transitively importingdart:io.To allow PowerSync to be used with such projects, this refactors the open factory to avoid that dependency.
I've also raised the minimum version of
package:sqlite3_flutter_libs, which closes #328.