# Changelog

All notable changes to File Manager are documented in this file.

The format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/), and the
project uses [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

`versionCode` and `versionName` are defined in `app/build.gradle.kts`. Each Play
upload needs a **higher `versionCode`** than every previous upload.

## [Unreleased]

### Added

- **M2 — storage layer.** The two storage backends behind one interface. `AllFilesSource`
  is `java.io.File` over every mounted volume (the "All files access" path);
  `SafSource` is the Storage Access Framework fallback, reading a persisted tree URI
  through `DocumentsContract` with `SafDocumentIds` doing the tree↔path mapping and
  `SafGrant` owning the folder picker and its persistence. `VolumeRepository` enumerates
  volumes via `StorageManager`/`StorageVolume` and reports free/total space through
  `StatFs`; `StorageAccess` and `StorageAccessPolicy` decide between the two backends.
  Both sources confine their blocking I/O to `Dispatchers.IO` and expose a `suspend`
  contract. 32 new JVM tests (76 total), including a Robolectric run of `SafSource`
  against a stand-in `DocumentsProvider`.

- **M1 — pure-Kotlin core engine.** An Android-free `core/` package holding the logic
  every other layer builds on: `StoragePath` (normalised absolute paths that can never
  escape the root), `FileEntry` with extension-based `FileKind` classification and a
  `MimeTypes` lookup for "open with", natural-order `SortSpec` (directories always
  first, `file2` before `file10`), human-readable `FileSize`, `NameMatcher`
  (case-insensitive substring plus `*`/`?` globs), `NameAllocator` ("name (1)") and
  `TransferPlanner` (conflict policies and move-into-self detection). Covered by
  **44 JVM unit tests** across 10 classes.

- **M0 — project scaffold.** Gradle 9.3.1 / AGP 9.1.0 build with a version catalog,
  `de.softwareapp_hb.filemanager` app module, a Compose Material 3 shell with the
  branded blue theme (dynamic colour on Android 12+), an adaptive launcher icon, and
  the storage-access permission set (all files access + SAF fallback). Debug APK
  builds, installs and runs on an AOSP Android 12 AVD.