* test: add coverage for state recovery, download validation, rollback, and resume edge cases
Add 18 new unit tests across 4 test modules to increase confidence in
the updater's most sensitive code paths — areas that are hard to test
manually and where bugs could brick apps.
- state_recovery_tests: corrupt/missing/truncated state files, crash
during boot with missing artifacts, crash recovery event queuing,
client_id preservation across state corruption
- download_validation_tests: download failures, empty downloads,
non-zstd data, malformed server responses, network failures
preserving existing patch state
- rollback_unit_tests: rollback of non-existent patches, multi-patch
rollback
- resume_edge_case_tests: sidecar without partial file, server ignoring
Range header, failed download preserving sidecar for retry, resume
after failure
* fix: replace 'Reinit' with 'Reinitialize' for cspell
* fix: assert state files exist before corrupting them in tests
Ensures corruption tests fail loudly if the hardcoded file paths
(patches_state.json, state.json, patches/) don't match the actual
constants used by the updater, rather than silently passing.
* style: fix formatting and clippy warnings in new tests
- Apply cargo fmt to new test code
- Remove needless borrows on PATCH_BYTES (clippy)
* ci: speed up Rust CI builds with caching and prebuilt tools
The Windows builder takes ~6min vs ~3min on Ubuntu, largely because
cargo-llvm-cov is compiled from source on every run. This adds
Swatinem/rust-cache for build artifact caching and switches to
taiki-e/install-action for prebuilt cargo-llvm-cov binaries.
Also fixes the undefined `inputs.shell` references by hardcoding `bash`.
* fix: add Swatinem and taiki to cspell dictionary
* ci: remove rust-cache, no measurable benefit for this project
Investigated cache hit/miss across 3 CI runs. Even with warm cache
hits (macOS/Windows), build times were unchanged or slightly slower
due to cache download/extract overhead (~39MB) outweighing the small
dependency compile time savings.
* ci: remove redundant cargo build step
Clippy already compiles all targets, so the explicit cargo build step
was redundant. The test step (cargo llvm-cov) also does its own
instrumented build, so nothing depended on the build step's artifacts.
* ci: try larger Windows runner for faster Rust builds
Switch from windows-latest (4 vCPU) to windows-latest-large (8 vCPU)
to see if the extra cores meaningfully speed up Rust compilation.
Windows builds currently take ~2x longer than macOS/Ubuntu.
* ci: use Namespace Windows runner (8 vCPU) instead of GitHub-hosted
Switch to nscloud-windows-2022-amd64-8x16 to test whether doubling
the cores from 4 to 8 meaningfully speeds up Rust compilation on
Windows, which currently takes ~2x longer than macOS/Ubuntu.
* fix: add nscloud to cspell dictionary
* perf: add release profile to reduce binary size
Add workspace-level release profile with size optimizations:
- opt-level = "z" (optimize for size)
- lto = true (cross-crate link-time optimization)
- codegen-units = 1 (better whole-program optimization)
- strip = "debuginfo" (remove debug info, preserve C API symbols)
Reduces .text section by ~32% (1.9 MiB → 1.3 MiB). The .a file
grows due to LTO bitcode embedding, but the final linked binary
(libflutter.so) will be smaller when the engine consumes it.
* chore: add codegen and debuginfo to spell check dictionary
* ci: speed up Rust CI builds with caching and prebuilt tools
The Windows builder takes ~6min vs ~3min on Ubuntu, largely because
cargo-llvm-cov is compiled from source on every run. This adds
Swatinem/rust-cache for build artifact caching and switches to
taiki-e/install-action for prebuilt cargo-llvm-cov binaries.
Also fixes the undefined `inputs.shell` references by hardcoding `bash`.
* fix: add Swatinem and taiki to cspell dictionary
* ci: remove rust-cache, no measurable benefit for this project
Investigated cache hit/miss across 3 CI runs. Even with warm cache
hits (macOS/Windows), build times were unchanged or slightly slower
due to cache download/extract overhead (~39MB) outweighing the small
dependency compile time savings.
* style: fix clippy warnings and add clippy check to CI
Runs `cargo clippy --all-targets -- -D warnings` in the rust_crate CI
action to catch lint issues before they land.
Fixes: redundant field names, needless returns, unnecessary closures,
io_other_error, needless borrows, single_match, unnecessary_unwrap,
and adds missing safety docs.
* chore: add 'clippy' to cspell dictionary
* feat: add resumable downloads with streaming to disk
Previously, failed patch downloads were lost entirely — the updater
would re-download from scratch on every retry, creating a doom loop for
users on poor networks. Downloads were also fully buffered in memory.
This changes the download abstraction from returning bytes in memory
(`DownloadFileFn`) to streaming directly to disk with resume support
(`DownloadToPathFn`). The new signature accepts a `resume_from` byte
offset and the default implementation uses HTTP Range headers.
Key changes:
- DownloadToPathFn streams to file, sends Range header when resuming
- DownloadResult returns total_bytes and content_length from server
- DownloadState sidecar JSON tracks URL/patch/size for resume decisions
- compute_resume_offset detects valid partial downloads to resume
- Post-download size validation catches truncated downloads
- cleanup_download_artifacts removes compressed files + sidecars after
successful install (fixes pre-existing leak of download artifacts)
The fn-pointer signature maps directly to a future C callback for
platform-native download backends (iOS NSURLSession, Android
DownloadManager).
* fix: address self-review issues in download implementation
- Parse Content-Range header for 206 responses to get total file size
(reqwest's content_length() only returns the partial body size)
- Only append to existing file when server actually returns 206, not
just when resume_from > 0 (handles servers that ignore Range header)
- Remove incorrect resume_from offset addition to expected_size
- Clean up download artifacts on size mismatch before bailing
- Restore parent directory creation in download_to_path wrapper
* refactor: remove expected_hash from DownloadState
The hash stored in the sidecar was the *inflated* file hash from the
server response — it couldn't validate the compressed partial download
and was never used for resume decisions. The URL match already
determines whether to resume, and the real hash check happens after
inflate using the fresh server response. Simplifies the sidecar to
just url, patch_number, and expected_size.
* test: add coverage for resumable downloads + review fixes
- Add 12 new tests covering:
- compute_resume_offset: no sidecar, matching sidecar, mismatched URL,
empty file
- cleanup_download_artifacts: removes file+sidecar, noop when missing
- Integration: successful update cleans up artifacts
- Integration: partial download resumes via 206 with mockito
- Integration: URL change triggers fresh download
- parse_content_range_total: valid, missing header, unknown size (*)
- Extract parse_content_range_total as testable helper (was inline chain)
- Add expected_hash back to DownloadState — catches the case where a
patch is deleted and re-added with same number but different content
- Add "rsplit" to cspell config
* feat: add orphan cleanup for download directory + WriteFile comment
Scan the download directory before each download and remove any files
that don't belong to the current patch number. We own this directory
entirely, so anything from a prior patch, a crashed inflate (.full),
or an unrecognized file is safe to delete. This prevents gradual
accumulation of orphaned partial downloads over time.
Also adds a TODO comment explaining the reuse of WriteFile context for
seek operations (FileOperation lacks a SeekFile variant).
* test: add coverage for hash mismatch, patch number mismatch, corrupt sidecar
- compute_resume_offset_mismatched_hash: same URL but hash changed
(patch deleted and re-added), verifies fresh download
- compute_resume_offset_mismatched_patch_number: sidecar for different
patch number, verifies fresh download
- compute_resume_offset_corrupt_sidecar: garbage JSON in sidecar,
verifies graceful fallback to fresh download
* test: cover download size mismatch and unknown content-length paths
- update_fails_on_download_size_mismatch: mock returns content_length
that doesn't match total_bytes, verifies error + artifact cleanup
- update_succeeds_when_content_length_unknown: verifies the size
validation is skipped when content_length is None
* fix: replace fake hash strings to pass cspell
* chore: remove unnecessary TODO comment about FileOperation::SeekFile
* refactor: panic in test download mocks that should never be called
Tests where the download is never reached (patch check fails or no
patch available) now panic instead of returning dummy data, making it
explicit that the mock shouldn't be invoked.
* refactor: add UNEXPECTED_DOWNLOAD/UNEXPECTED_REPORT test constants
Shared panicking constants for test mocks that should never be called.
Tests use these by name instead of writing inline panic closures,
making intent clearer and avoiding uncoverable dead code in closures.
* test: add coverage for handle_download_result
Tests for the download-specific HTTP response handler:
- 200 OK: accepted
- 206 Partial Content: accepted (for resumed downloads)
- 500: rejected with error message
* fix: update missed download fn signatures in tests
Two test sites in updater.rs were not updated to the new
DownloadToPathFn 3-argument signature:
- set_noop_network_hooks in multi_engine_tests used old 1-arg closure
- update_starts_fresh_when_url_changes had unused patch_bytes variable
* test: add coverage for handle_download_result error branches
Mirror the existing handle_network_result_no_internet and
handle_network_result_unknown_error tests for the download variant.
These exercise the connection error and builder error paths in
handle_download_result that were previously uncovered.
* fix: adapt resumable downloads to ureq (post-rebase cleanup)
- Replace reqwest with ureq for download_to_path_default
- Remove handle_download_result (ureq's handle_network_result handles 206)
- Fix TempDir::new("prefix") → TempDir::new() for tempfile crate
- Remove unused Read/Write imports
Run `cargo update` to bump transitive dependencies, fixing 10 of 11
alerts (h2, ring, idna, mio, tokio, bytes, time, quinn-proto,
rustls-webpki, unsafe-libyaml).
Replace deprecated `tempdir` dev-dependency with `tempfile` to
eliminate the `remove_dir_all` vulnerability (the last alert).
* refactor: replace reqwest with ureq to reduce binary size
reqwest's blocking API is built on top of its async implementation,
pulling in tokio, hyper, futures, and ~84 other transitive dependencies
even though we only make simple synchronous HTTP calls.
ureq is a synchronous-only HTTP client that eliminates the async
runtime entirely. This reduces transitive dependencies from 227 to 143
and the linked dylib from 4.5 MB to 3.7 MB (-18%). The .a archive
drops from 28 MB to 26 MB, but real savings will be larger once
linked into libflutter with dead code stripping.
The network API surface is unchanged — three functions (patch check,
file download, event reporting) using POST/GET with JSON.
* chore: add ureq to spell check dictionary
* refactor: use into_body() instead of body_mut() where response is consumed
* fix: simplify network error matching to avoid fragile string checks
Consolidate HostNotFound, ConnectionFailed, and all Io errors into
a single network-error arm instead of pattern-matching on error
message strings that could change across OS versions or locales.
* chore: add TODO for misleading network error message
* test: test api calls
* chore: add docs
* chore: fix cspell
* fix: use no-op network hooks in multi_engine tests
Set no-op network hooks after init_for_testing so the fire-and-forget
thread spawned by report_launch_success completes instantly without
network I/O, preventing leaked threads from interfering with subsequent
serial tests that use mock servers.
Previously, checkForUpdate returned upToDate after a rollback because
the condition `next != null && current?.number != next.number` treated
a null next patch as "up to date". After a rollback, the Rust updater
correctly uninstalls the patch (next becomes null), but the app is still
running the rolled-back patch (current is non-null). The simplified
condition `current?.number != next?.number` correctly detects this
mismatch and returns restartRequired.
Fixes https://github.com/shorebirdtech/shorebird/issues/3206
* fix: improve inflate error handling and validate compressed patches
Addresses #2989: "pipe reader has been dropped" / "failed to fill whole
buffer" errors during patch inflation were masking the real root cause.
Three changes:
1. Join the decompression thread and propagate its error as the primary
failure, rather than fire-and-forget logging. The patching thread's
broken-pipe error is a side-effect, not the cause. Also drop the pipe
reader before joining to avoid deadlock when patching fails.
2. Validate the downloaded compressed patch (non-empty, valid zstd magic
bytes) before attempting decompression, so corrupt/truncated downloads
produce a clear error instead of cryptic pipe errors.
3. Log the download size in download_to_path to help diagnose truncated
downloads in the field.
* docs: expand comment on drop(fresh_r) to clarify deadlock risk
* feat: log app_id, patch number, and version before download
* test: add inflate tests for corrupt data and invalid magic
* test: cover decompression-error-as-primary-cause path in inflate
Uses a valid zstd frame followed by a corrupt second frame so that
bipatch::Reader::new succeeds but decompression fails midway, verifying
that the decompression error is reported as the primary cause.
Users sometimes gate app startup on checkForUpdate() or update()
completing (e.g. awaiting in initState before showing content), which
can cause the app to appear stuck on the splash screen when the
network is slow.
Add warning doc comments to both methods recommending the .then()
pattern for startup code, and update README examples to use .then().
Fixes https://github.com/shorebirdtech/shorebird/issues/3179
* feat: add enhanced error messages for file operations
Add a file_errors module that provides context-aware error messages
for file operations. When file operations fail, users now see:
- The specific operation that failed (create, read, write, rename, etc.)
- The full path involved
- Helpful hints about possible causes based on error type
- Android-specific hints for permission errors (SELinux, Work Profile,
MDM/Knox policies, app cloning features)
This helps diagnose issues like "Permission denied (os error 13)" by
indicating which operation failed and suggesting possible causes.
The scenario is:
1. User is running patch 2 (booted successfully, so last_booted_patch = 2)
2. While the app is still running, they call the check-for-update API
3. Patch 3 is downloaded and installed (next_boot_patch = 3)
4. Before the app restarts, they check again and patch 4 is available
5. The buggy code is supposed to delete patch 3 (never booted), but instead deletes patch 2 (the last known-good patch)
6. Patch 4 is set as next_boot_patch
If patch 4 boots fine, nobody notices. But if patch 4 fails to boot and the system tries to roll back to patch 2, those artifacts are gone.
* feat: move patch verification from boot time to install time
* feat: make it switchable
* chore: update comments
* fix: test invalid yaml
* chore: update readme
* feat: add more comments to readme
* doc: more readme updates
* chore: rename to patch_verification
* fix: make tests pass on Windows
* Run ci on all supported building OSes
* Add os name to CI step
* Build rust crates on all oses
* tweak
* Only run rust on multiple oses for now
Eric Seidel