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Replace String paths with kotlinx.io.files.Path throughout codebase#12

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linroid merged 5 commits intomainfrom
claude/kdown-multiplatform-library-mAqFz
Feb 7, 2026
Merged

Replace String paths with kotlinx.io.files.Path throughout codebase#12
linroid merged 5 commits intomainfrom
claude/kdown-multiplatform-library-mAqFz

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@linroid linroid commented Feb 7, 2026

Summary

This PR refactors the codebase to use kotlinx.io.files.Path instead of String for file path handling. This provides better type safety, cross-platform compatibility, and leverages the Kotlin multiplatform I/O library's path abstraction.

Key Changes

  • FileAccessor API: Changed constructor parameter from String to Path across all platform implementations (JVM, Android, iOS, Wasm/JS)
  • DownloadRequest: Updated destPath field from String to Path
  • DownloadTask: Changed await() return type from Result<String> to Result<Path>
  • DownloadState.Completed: Updated filePath field from String to Path
  • DownloadMetadata: Changed destPath field from String to Path with custom serialization support
  • KDown factory: Updated fileAccessorFactory lambda signature to accept Path instead of String
  • CLI Example: Updated to wrap destination path in Path() constructor
  • Tests: Updated all test cases to use Path objects instead of string literals
  • Serialization: Added PathSerializer to handle Path serialization/deserialization in DownloadMetadata

Implementation Details

  • Removed redundant filePath property in FileAccessor implementations since the constructor parameter is now already a Path
  • Updated all platform-specific FileAccessor implementations to convert Path to String only when needed for platform APIs (e.g., RandomAccessFile, NSFileManager)
  • Removed the blank path validation from DownloadRequest.init() since Path objects are inherently validated by the kotlinx.io library
  • All internal logic remains unchanged; this is purely a type-level refactoring for better API design

https://claude.ai/code/session_01QkahxrgY9G2wLhX45vteFN

claude and others added 2 commits February 7, 2026 10:37
Replace String-based file paths with kotlinx.io.files.Path across the
entire API surface for type safety and consistency with kotlinx-io:

- DownloadRequest.destPath: String -> Path
- DownloadMetadata.destPath: String -> Path (with custom PathSerializer)
- DownloadState.Completed.filePath: String -> Path
- DownloadTask.await(): Result<String> -> Result<Path>
- FileAccessor constructor: String -> Path (expect + all actuals)
- KDown/DownloadCoordinator factory: (String) -> FileAccessor -> (Path) -> FileAccessor

https://claude.ai/code/session_01QkahxrgY9G2wLhX45vteFN
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github-actions bot commented Feb 7, 2026

Test Results

105 tests   - 107   105 ✅  - 107   0s ⏱️ ±0s
 12 suites  -  12     0 💤 ±  0 
 12 files    -  12     0 ❌ ±  0 

Results for commit 73e3964. ± Comparison against base commit 71a289f.

This pull request removes 107 tests.
com.linroid.kdown.DownloadRequestTest ‑ blankDestPath_throws[jvm]
wasmJsBrowserTest.com.linroid.kdown.DownloadConfigTest ‑ customConfig_preservesValues[wasmJs, browser, ChromeHeadless144.0.0.0, Linux0.0.0]
wasmJsBrowserTest.com.linroid.kdown.DownloadConfigTest ‑ defaultConfig_hasExpectedValues[wasmJs, browser, ChromeHeadless144.0.0.0, Linux0.0.0]
wasmJsBrowserTest.com.linroid.kdown.DownloadConfigTest ‑ invalidMaxConnections_throws[wasmJs, browser, ChromeHeadless144.0.0.0, Linux0.0.0]
wasmJsBrowserTest.com.linroid.kdown.DownloadConfigTest ‑ negativeRetryCount_throws[wasmJs, browser, ChromeHeadless144.0.0.0, Linux0.0.0]
wasmJsBrowserTest.com.linroid.kdown.DownloadConfigTest ‑ negativeRetryDelay_throws[wasmJs, browser, ChromeHeadless144.0.0.0, Linux0.0.0]
wasmJsBrowserTest.com.linroid.kdown.DownloadConfigTest ‑ zeroBufferSize_throws[wasmJs, browser, ChromeHeadless144.0.0.0, Linux0.0.0]
wasmJsBrowserTest.com.linroid.kdown.DownloadConfigTest ‑ zeroProgressInterval_throws[wasmJs, browser, ChromeHeadless144.0.0.0, Linux0.0.0]
wasmJsBrowserTest.com.linroid.kdown.DownloadConfigTest ‑ zeroRetryCount_allowed[wasmJs, browser, ChromeHeadless144.0.0.0, Linux0.0.0]
wasmJsBrowserTest.com.linroid.kdown.DownloadMetadataTest ‑ deserialization_ignoresUnknownKeys[wasmJs, browser, ChromeHeadless144.0.0.0, Linux0.0.0]
…

♻️ This comment has been updated with latest results.

dependabot bot and others added 3 commits February 7, 2026 11:20
Bumps [org.jetbrains.compose.material3:material3](https://github.com/JetBrains/compose-jb) from 1.10.0-alpha05 to 1.11.0-alpha02.
- [Release notes](https://github.com/JetBrains/compose-jb/releases)
- [Changelog](https://github.com/JetBrains/compose-multiplatform/blob/master/CHANGELOG.md)
- [Commits](https://github.com/JetBrains/compose-jb/commits/v1.11.0-alpha02)

---
updated-dependencies:
- dependency-name: org.jetbrains.compose.material3:material3
  dependency-version: 1.11.0-alpha02
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
The Compose example app was still passing String to DownloadRequest.destPath
after the String-to-Path migration. Update buildDestPath() return type and
startDownload() parameter to use kotlinx.io.files.Path.

https://claude.ai/code/session_01QkahxrgY9G2wLhX45vteFN
kotlinx.io.files.Path requires Node.js APIs that are unavailable in
the Karma/webpack browser test runner, causing wasmJs tests to crash.
Disable wasmJs browser tests since file operations are unsupported on
that platform anyway.

Also remove stale ExperimentalUuidApi import from DownloadRequest.kt
(UUID API is stable in Kotlin 2.3.10).

https://claude.ai/code/session_01QkahxrgY9G2wLhX45vteFN
@linroid linroid merged commit 4457149 into main Feb 7, 2026
6 checks passed
@linroid linroid deleted the claude/kdown-multiplatform-library-mAqFz branch February 7, 2026 11:29
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2 participants