Changelog

Aug 25, 2023 to Sep 08, 2023

Highlights (Aug 25, 2023 to Sep 08, 2023):

• SEED 0107: Pigweed Communications has been approved! Pigweed will adopt a new sockets API as its primary networking abstraction. The sockets API will be backed by a new, lightweight embedded-focused network protocol stack inspired by TCP/IP.

• SEED 0108: Emulators Frontend has also been approved! Coming soon, the new pw_emu module will make it easier to work with emulators.

Please join us at the next Pigweed Live on Mon, Sep 11 1PM PST to discuss All Things Pigweed. Go to the #pigweed-live channel to get a link to the video meeting.

Active SEEDs

Help shape the future of Pigweed! Please leave feedback on the following active RFCs (SEEDs):

• SEED-0103: pw_protobuf Object Model

• SEED-0104: display support

• SEED-0105: Add nested tokens and tokenized args to pw_tokenizer and pw_log

• SEED-0106: Project Template

• SEED-0109: Communication Buffers

Modules

pw_assert

We fixed circular dependencies in Bazel.

• Remove placeholder target

• Fix Bazel circular deps (issue #234877642)

• Introduce pw_assert_backend_impl (issue #234877642)

pw_bluetooth

We added Emboss definitions.

• Add SimplePairingCompleteEvent Emboss definition

• Add UserPasskeyRequestEvent Emboss definition

• Add UserConfirmationRequestEvent Emboss definition

• Use hci.LinkKey in LinkKeyNotificationEvent.link_key

• Add IoCapabilityResponseEvent Emboss definition

• Add IoCapabilityRequestEvent Emboss definition

• Add EncryptionKeyRefreshCompleteEvent Emboss definition

• Add ExtendedInquiryResultEvent Emboss definition

pw_build

• Force watch and default recipe names

pw_build_mcuxpresso

• Output formatted bazel target

pw_cpu_exception

We added Bazel support.

• bazel build support (issue #242183021)

pw_crypto

The complete pw_crypto API reference is now documented on pw_crypto.

• Add API reference (issue #299147635)

pw_env_setup

Banners should not print correctly on Windows.

• Add i2c protos to python deps

• Fix banner printing on Windows (issue #289008307)

pw_file

• Add pw_file python package

pw_function

The pw::bind_member() template is now exposed in the public API. bind_member() is useful for binding the this argument of a callable. We added a section to the docs explaining why pw::Function is not a literal.

• Explain non-literal design rationale

• Expose `bind_member`

pw_fuzzer

We refactored pw_fuzzer logic to be more robust and expanded the pw_fuzzer: Using OSS-Fuzz doc.

• Refactor OSS-Fuzz support (issue #56955)

pw_i2c

• Use new k{FieldName}MaxSize constants to get buffer size

pw_kvs

We are discouraging the use of the shorter macros because they collide with Abseil’s logging API.

• Remove usage of pw_log/shorter.h API (issue #299520256)

pw_libc

snprintf() support was added.

• Import LLVM libc’s snprintf

pw_log_string

We added more detail to pw_log_string.

• Fix the default impl to handle zero length va args

• Provide more detail in the getting started docs (issue #298124226)

pw_log_zephyr

It’s now possible to define pw_log_tokenized_HandleLog() outside of Pigweed so that Zephyr projects have more flexibility around how they capture tokenized logs.

• Split tokenize handler into its own config

pw_package

• Handle failed cipd acl checks

pw_persistent_ram

• Add persistent_buffer flat_file_system_entry

pw_presubmit

We added a reStructuredText formatter.

• Make builds_from_previous_iteration ints (issue #299336222)

• Move colorize_diff to tools

• RST formatting

pw_protobuf

max_size and max_count are now exposed in generated headers. The new proto_message_field_props() helper function makes it easier to iterate through a messages fields and properties.

• Expose max_size, max_count in generated header file (issue #297364973)

• Introduce proto_message_field_props()

• Change PROTO_FIELD_PROPERTIES to a dict of classes

• Rename ‘node’ to ‘message’ in forward_declare()

• Simplify unnecessary Tuple return type

pw_random

We’re now auto-generating the XorShiftStarRng64 API reference via Doxygen.

• Doxygenify xor_shift.h

pw_rpc

The new request_completion() method in Python enables you to send a completion packet for server streaming calls.

• Add request_completion to ServerStreamingCall python API

pw_spi

• Fix Responder.SetCompletionHandler() signature

pw_symbolizer

The LlvmSymbolizer Python class has a new close() method to deterministically close the background process.

• LlvmSymbolizer tool improvement

pw_sync

We added GenericBasicLockable.

• Add GenericBasicLockable

pw_system

pw_system now supports different channels for primary and logging RPC.

• Multi-channel configuration (issue #297076185)

pw_thread_freertos

• Add missing dep to library

pw_tokenizer

We added PW_TOKENIZE_FORMAT_STRING_ANY_ARG_COUNT and PW_TOKENIZER_REPLACE_FORMAT_STRING. We refactored the docs so that you don’t have to jump around the docs as much when learning about key topics like tokenization and token databases. Database loads now happen in a separate thread to avoid blocking the main thread. Change detection for directory databases now works more as expected. The config API is now exposed in the API reference.

• Remove some unused deps

• Simplify implementing a custom tokenization macro

• Refactor the docs to be task-focused

• Reload database in dedicated thread

• Combine duplicated docs sections

• Support change detection for directory dbs

• Move config value check to .cc file

pw_unit_test

We added testing::Test::HasFailure(), FRIEND_TEST, and << messages to improve gTest compatibility.

• Add testing::Test::HasFailure()

• Add FRIEND_TEST

• Allow <<-style messages in test expectations

pw_varint

pw_varint now has a C-only API.

• Add C-only implementation; cleanup

pw_web

Logs can now be downloaded as plaintext.

• Fix TypeScript errors in Device files

• Json Log Source example

• Enable downloading logs as plain text

• Fix UI/state bugs

• NPM version bump to 0.0.11

• Add basic bundling tests for log viewer bundle

Build

Bazel

• Fix alwayslink support in MacOS host_clang (issue #297413805)

• Fix lint issues after roll

Docs

• Fix broken links (issue #299181944)

• Recommend enabling long file paths on Windows

• Update Windows command for git hook

• Fix main content scrolling (issue #297384789)

• Update changelog (issue #292247409)

• Use code-block:: instead of code:: everywhere

• Add function signature line breaks

• Cleanup indentation

SEEDs

• SEED-0108: Emulators Frontend

Third party

• Add public configs for FuzzTest deps

• Reconfigure deps & add cflags to config

Miscellaneous

• Fix formatting with new clang version

mimxrt595_evk_freertos

• Use config_assert helper

Aug 11, 2023 to Aug 25, 2023

Highlights (Aug 11, 2023 to Aug 25, 2023):

• pw_tokenizer now has Rust support.

• The pw_web log viewer now has advanced filtering and a jump-to-bottom button.

• The run_tests() method of pw_unit_test now returns a new TestRecord dataclass which provides more detailed information about the test run.

• A new Ambiq Apollo4 target that uses the Ambiq Suite SDK and FreeRTOS has been added.

Please join us at the next Pigweed Live on Monday, Aug 28 1PM PST to discuss these changes and anything else on your mind. Join our Discord and head over to the #pigweed-live channel to get a link to the video meeting.

Active SEEDs

Help shape the future of Pigweed! Please leave feedback on the following active RFCs (SEEDs):

• SEED-0103: pw_protobuf Object Model

• SEED-0104: display support

• SEED-0105: Add nested tokens and tokenized args to pw_tokenizer and pw_log

• SEED-0106: Project Template

• SEED-0108: Emulators Frontend

Modules

pw_bloat

• Fix typo in method name

pw_bluetooth

The Emboss files were refactored.

• Add SynchronousConnectionCompleteEvent Emboss definition

• Add all Emboss headers/deps to emboss_test & fix errors

• Add InquiryResultWithRssiEvent Emboss definition

• Add DataBufferOverflowEvent Emboss definition

• Add LinkKeyNotificationEvent Emboss definition

• Add LinkKeyRequestEvent emboss definition

• Remove unused hci emboss files

• Add RoleChangeEvent emboss definition

• Add missing test dependency

• Add new hci subset files

pw_build

The pw_build docs were split up so that each build system has its own page now. The new output_logs flag enables you to not output logs for pw_python_venv.

• Handle read-only files when deleting venvs

• Split build system docs into separate pages

• Use pw_toolchain_clang_tools

• Add missing pw_linker_script flag (issue #296928739)

• Fix output_logs_ unused warning (issue #295524695)

• Don’t include compile cmds when preprocessing ldscripts

• Add pw_python_venv.output_logs (issue #295524695)

• Increase size of test linker script memory region

• Add integration test metadata

pw_cli

• Default change pw_protobuf default (issue #266298474)

pw_console

• Update web viewer to use pigweedjs

pw_containers

• Silence MSAN false positive in pw::Vector

pw_docgen

Docs builds should be faster now because Sphinx has been configured to use all available cores.

• Remove top nav bar

• Parallelize Sphinx

pw_env_setup

Sphinx was updated from v5.3.0 to v7.1.2. We switched back to the upstream Furo theme and updated to v2023.8.19. The content of pigweed_environment.gni now gets logged. There was an update to ensure that arm-none-eabi-gdb errors propagate correctly. There is now a way to override Bazel build files for CIPD repos.

• Upgrade sphinx and dependencies for docs

• Upgrade sphinx-design

• Copy pigweed_environment.gni to logs

• arm-gdb: propagate errors

• arm-gdb: exclude %VIRTUAL_ENV%Scripts from search paths

• Add ability to override bazel BUILD file for CIPD repos

pw_function

• Rename template parameter

pw_fuzzer

• Add test metadata

pw_hdlc

A new close() method was added to HdlcRpcClient to signal to the thread to stop.

• Use explicit logger name

• Mitigate errors on Python background thread (issue #293595266)

pw_ide

A new --install-editable flag was added to install Pigweed Python modules in editable mode so that code changes are instantly realized.

• Add cmd to install Py packages as editable

• Make VSC extension run on older versions

pw_perf_test

• Add test metadata

pw_presubmit

pw_presubmit now has an ESLint check for linting and a Prettier check for formatting JavaScript and TypeScript files.

• Add msan to OTHER_CHECKS (issue #234876100)

• Upstream constraint file output fix

• JavaScript and TypeScript lint check

• Apply TypeScript formatting

• Use prettier for JS and TS files

pw_rpc

A request_completion() method was added to the ServerStreamingCall Python API. A bug was fixed related to encoding failures when dynamic buffers are enabled.

• Add request_completion to ServerStreamingCall python API

• Various small enhancements

• Remove deprecated method from Service

• Prevent encoding failure when dynamic buffer enabled (issue #269633514)

pw_rpc_transport

• Add simple_framing Soong rule

pw_rust

• Update rules_rust to 0.26.0

pw_stm32cube_build

• Windows path fixes

pw_stream

Error codes were updated to be more accurate and descriptive.

• Use more appropriate error codes for Cursor

pw_stream_uart_linux

Common baud rates such as 9600, 19200, and so on are now supported.

• Add support for baud rates other than 115200

pw_sync

Tests were added to make sure that pw::sync::Borrowable works with lock annotations.

• Test Borrowable with Mutex, TimedMutex, and InterruptSpinLock (issue #261078330)

pw_system

The pw_system.device.Device Python class can now be used as a context manager.

• Make pw_system.device.Device a context manager

pw_tokenizer

pw_tokenizer now has Rust support. The pw_tokenizer C++ config API is now documented at Configuration and the C++ token database API is now documented at Token databases. When creating a token database, parent directories are now automatically created if they don’t already exist. PrefixedMessageDecoder has been renamed to NestedMessageDecoder.

• Move config value check to .cc file

• Create parent directory as needed

• Rework pw_tokenizer.detokenize.PrefixedMessageDecoder

• Minor binary database improvements

• Update binary DB docs and convert to Doxygen

• Deprecate tokenizer buffer size config

• Fix instance of -Wconstant-logical-operand

• Add Rust support

pw_toolchain

A new Linux host toolchain built using pw_toolchain_bazel has been started. CIPD-provided Rust toolchains are now being used.

• Link against system libraries using libs not ldflags

• Use %package% for cxx_builtin_include_directories

• Extend documentation for tool prefixes

• Add Linux host toolchain (issue #269204725)

• Use CIPD provided Rust toolchains

• Switch macOS to use builtin_sysroot

• Add cmake helpers for getting clang compile+link flags

pw_unit_test

run_tests() now returns the new TestRecord dataclass which provides more detailed information about the test run. SetUpTestSuit() and TearDownTestSuite() were added to improve GoogleTest compatibility.

• Add TestRecord of Test Results

• Reset static value before running tests (issue #296157327)

• Add per-fixture setup/teardown

pw_web

Log viewers are now drawn every 100 milliseconds at most to prevent crashes when many logs arrive simultaneously. The log viewer now has a jump-to-bottom button. Advanced filtering has been added.

• NPM version bump to 0.0.11

• Add basic bundling tests for log viewer bundle

• Limit LogViewer redraws to 100ms

• Add jump to bottom button, fix UI bugs and fix state bugs

• Implement advanced filtering

• Remove object-path dependency from Device API

• Log viewer toolbar button toggle style

• Log-viewer line wrap toggle

Targets

targets

A new Ambiq Apollo4 target that uses the Ambiq Suite SDK and FreeRTOS has been added.

• Ambiq Apollo4 support

Language support

Python

• Upgrade mypy to 1.5.0

• Upgrade pylint to 2.17.5

Docs

Doxygen-generated function signatures now present each argument on a separate line. Tabbed content looks visually different than before.

• Use code-block:: instead of code:: everywhere

• Add function signature line breaks

• Cleanup indentation

• Remove unused myst-parser

• Use sphinx-design for tabbed content

• Update changelog

SEEDs

SEED-0107 (Pigweed Communications) was accepted and SEED-0109 (Communication Buffers) was started.

• Update protobuf SEED title in index

• Update status to Accepted

• Pigweed communications

• Claim SEED number

Miscellaneous

Build

• Make it possible to run MSAN in GN

soong

• Remove host/vendor properties from defaults

Jul 27, 2023 to Aug 11, 2023

Highlights (Jul 27, 2023 to Aug 11, 2023):

• We’re prototyping a Pigweed extension for VS Code. Learn more at Code Editor Support.

• We added pw_toolchain_bazel, a new LLVM toolchain for building with Bazel on macOS.

• We are working on many docs improvements in parallel: auto-generating rustdocs for modules that support Rust (example), refactoring the pw_tokenizer docs, migrating API references to Doxygen, fixing longstanding docs site UI issues, and more.

Please join us at the next Pigweed Live on Monday, Aug 14 1PM PST to discuss these changes and anything else on your mind. Join our Discord and head over to the #pigweed-live channel to get a link to the video meeting.

Active SEEDs

Help shape the future of Pigweed! Please leave feedback on the following active RFCs (SEEDs):

• SEED-0103: pw_protobuf Object Model

• SEED-0104: display support

• SEED-0105: Add nested tokens and tokenized args to pw_tokenizer and pw_log

• SEED-0106: Project Template

• SEED-0107: Pigweed communications

• SEED-0108: Emulators Frontend

Modules

pw_alignment

• Fix typos

pw_analog

Long-term, all of our API references will be generated from header comments via Doxygen. Short-term, we are starting to show header files directly within the docs as a stopgap solution for helping Pigweed users get a sense of each module’s API. See pw_analog for an example.

• Include header files as stopgap API reference (issue #293895312)

pw_base64

We finished migrating the pw_random API reference to Doxygen.

• Finish Doxygenifying the API reference

• Doxygenify the Encode() functions

pw_boot_cortex_m

• Allow explict target name

pw_build

We added a log_build_steps option to ProjectBuilder that enables you to log all build step lines to your screen and logfiles.

• Handle ProcessLookupError exceptions

• ProjectBuilder log build steps option

• Fix progress bar clear

pw_cli

We polished tab completion support.

• Zsh shell completion autoload

• Make pw_cli tab completion reusable

pw_console

We made copy-to-clipboard functionality more robust when running pw_console over SSH.

• Set clipboard fallback methods

pw_containers

We updated filteredview constructors and migrated the FilteredView API reference to Doxygen.

• Doxygenify pw::containers::FilteredView

• Support copying the FilteredView predicate

pw_docgen

At the top of pages like pw_tokenizer there is a UI widget that provides information about the module. Previously, this UI widget had links to all the module’s docs. This is no longer needed now that the site nav automatically scrolls to the page you’re on, which allows you to see the module’s other docs.

• Remove the navbar from the module docs header widget (issue #292273650)

pw_env_setup

We made Python setup more flexible.

• Add clang_next.json (issue #295020927)

• Pip installs from CIPD

• Include Python packages from CIPD

• Remove unused pep517 package

• Use more available Python 3.9 (issue #292278707)

• Update Bazel to 2@6.3.0.6

pw_ide

We are prototyping a pw_ide extension for VS Code.

• Restore stable clangd settings link

• Add command to install prototype extension

• Prototype VS Code extension

pw_interrupt

We added a backend for Xtensa processors.

• Add backend for xtensa processors

• Tidy up target compatibility (issue #272090220)

pw_log_zephyr

We encoded tokenized messages to pw::InlineString so that the output is always null-terminated.

• Fix null termination of Base64 messages

pw_presubmit

We increased LUCI support and updated the #pragma once check to look for matching #ifndef and #define lines.

• Fix overeager format_code matches

• Exclude vsix files from copyright

• Clarify unicode errors

• Upload coverage json to zoss (issue #279161371)

• Add to context tests

• Add patchset to LuciTrigger

• Add helpers to LuciContext

• Update Python vendor wheel dir

• Add summaries to guard checks (issue #287529705)

• Copy Python packages

• Add ifndef/define check (issue #287529705)

pw_protobuf_compiler

We continued work to ensure that the Python environment in Bazel is hermetic.

• Use hermetic protoc (issue #294284927)

• Move reference to python interpreter (issue #294414535)

• Make nanopb hermetic (issue #293792686)

pw_python

We fixed bugs related to requirements.txt files not getting found.

• setup.sh requirements arg fix path

• setup.sh arg spaces bug

pw_random

We continued migrating the pw_random API reference to Doxygen.

• Doxygenify random.h

pw_rpc

We made the Java client more robust.

• Java client backwards compatibility

• Avoid reflection in Java client (issue #293361955)

• Use hermetic protoc (issue #294284927)

• Improve Java client error message for missing parser() method

pw_spi

We continued work on implementing a SPI responder interface.

• Responder interface definition

pw_status

We fixed the nesting on a documentation section.

• Promote Zephyr heading to h2

pw_stream

We added remaining(), len(), and position() methods to the Cursor wrapping in Rust.

• Add infalible methods to Rust Cursor

pw_stream_shmem_mcuxpresso

We added the pw_stream_shmem_mcuxpresso backend for pw_stream.

• Add shared memory stream for NXP MCU cores (issue #294406620)

pw_sync_freertos

• Fix ODR violation in tests

pw_thread

• Fix test_thread_context typo and presubmit

pw_tokenizer

We added support for unaligned token databases and continued the 0102: Consistent Module Documentation update of the pw_tokenizer docs.

• Separate API reference and how-to guide content

• Polish the sales pitch

• Support unaligned databases

• Move the basic overview into getting started

• Move the case study to guides.rst

• Restore info that get lost during the SEED-0102 migration

• Use the same tagline on every doc

• Replace savings table with flowchart

• Ignore string nonliteral warnings

pw_toolchain

We fixed a regression that made it harder to use Pigweed in an environment where pw_env_setup has not been run and fixed a bug related to incorrect Clang linking.

• Optionally depend on pw_env_setup_CIPD_PIGWEED (issue #294886611)

• Prefer start-group over whole-archive (issue #285357895)

pw_toolchain_bazel

We added a an LLVM toolchain for building with Bazel on macOS.

• LLVM toolchain for macOS Bazel build (issue #291795899)

pw_trace_tokenized

We made tracing more robust.

• Replace trace callback singletons with dep injection

pw_transfer

We made integration tests more robust.

• Fix use-after-destroy in integration test client (issue #294101325)

• Fix legacy binary path (issue #294284927)

• Mark linux-only Bazel tests (issue #294101325)

pw_web

We added support for storing user preferences in localStorage.

• Fix TypeScript warnings in web_serial_transport.ts

• Add state for view number, search string, and columns visible

• Fix TypeScript warnings in transfer.ts

• Fix TypeScript warnings

• Remove dependency on ‘crc’ and ‘buffer’ NPM packages

Build

We made the Bazel system more hermetic and fixed an error related to not finding the Java runtime.

• Do not allow PATH leakage into Bazel build (issue #294284927)

• Use remote Java runtime for Bazel build (issue #291791485)

Docs

We created a new doc (Code Editor Support) that explains how to improve Pigweed support in various IDEs. We standardized how we present call-to-action buttons on module homepages. See pw_tokenizer for an example. We fixed a longstanding UI issue around the site nav not scrolling to the page that you’re currently on.

• Add call-to-action buttons

• Update module items in site nav

• Add editor support doc

• Delay nav scrolling to fix main content scrolling (issue #292273650)

• Suggest editor configuration

• Scroll to the current page in the site nav (issue #292273650)

• Add changelog (issue #292247409)

SEEDs

We created a UI widget to standardize how we present SEED status information. See the start of 0102: Consistent Module Documentation for an example.

• Create Sphinx directive for metadata

Third party

third_party/mbedtls

• 3.3.0 compatibility (issue #293612945)

Miscellaneous

OWNERS

• Add kayce@

Jul 13, 2023 to Jul 28, 2023

Highlights (Jul 13, 2023 to Jul 28, 2023):

• SEED-0107: Pigweed Communications, a proposal for an embedded-focused network protocol stack, is under discussion. Please review and provide your input!

• pw_cli now supports tab completion!

• A new UART Linux backend for pw_stream was added (pw_stream_uart_linux).

Active SEEDs

• SEED-0103: pw_protobuf Object Model

• SEED-0104: display support

• SEED-0105: Add nested tokens and tokenized args to pw_tokenizer and pw_log

• SEED-0106: Project Template

• SEED-0107: Pigweed communications

• SEED-0108: Emulators Frontend

Modules

pw_allocator

We started migrating the pw_allocator API reference to Doxygen.

• Doxygenify the freelist chunk methods

pw_async

We increased Bazel support.

• Fill in bazel build rules

pw_async_basic

We reduced logging noisiness.

• Remove debug logging

pw_base64

We continued migrating the pw_base64 API reference to Doxygen.

• Doxygenify MaxDecodedSize()

pw_bloat

We improved the performance of label creation. One benchmark moved from 120 seconds to 0.02 seconds!

• Cache and optimize label production

pw_bluetooth

Support for 3 events was added.

• Add 3 Event packets & format hci.emb

pw_build

• Fix progress bar clear

• Upstream build script fixes

• Add pw_test_info

• Upstream build script & presubmit runner

• pw_watch: Redraw interval and bazel steps

• Avoid extra newlines for docs in generate_3p_gn

• pip install GN args (issue #240701682)

• pw_python_venv generate_hashes option (issue #292098416)

pw_build_mcuxpresso

Some H3 elements in the pw_build_mcuxpresso docs were being incorrectly rendered as H2.

• Fix doc headings

pw_chrono_freertos

We investigated what appeared to be a race condition but turned out to be an unreliable FreeRTOS variable.

• Update SystemTimer comments (issue #291346908)

• Remove false callback precondition (issue #291346908)

pw_cli

pw_cli now supports tab completion!

• Zsh shell completion autoload

• Make pw_cli tab completion reusable

• Print tab completions for pw commands

• Fix logging msec timestamp format

pw_console

Communication errors are now handled more gracefully.

• Detect comms errors in Python

pw_containers

The flat map implementation and docs have been improved.

• Doxygenify pw::containers::FilteredView

• Support copying the FilteredView predicate

• Improve FlatMap algorithm and filtered_view support

• Improve FlatMap doc example

• Update FlatMap doc example so it compiles

pw_digital_io

We continued migrating the API reference to Doxygen. An RPC service was added.

• Doxygenify the interrupt handler methods

• Doxygenify Enable() and Disable()

• Add digital_io rpc service

pw_digital_io_mcuxpresso

We continued migrating the API reference to Doxygen. Support for a new RPC service was added.

• Remove unneeded constraints

pw_docgen

Support for auto-linking to Rust docs (when available) was added. We also explained how to debug Pigweed’s Sphinx extensions.

• Add rustdoc linking support to pigweed-module tag

• Add extension debugging instructions

pw_env_setup

There were lots of updates around how the Pigweed environment uses Python.

• pw_build: Disable pip version check

• Add docstrings to visitors

• Sort pigweed_environment.gni lines

• Mac and Windows Python requirements (issue #292098416)

• Add more Python versions (issue #292278707)

• Remove python.json from Bazel CIPD (issue #292585791)

• Redirect variables from empty dirs (issue #292278707)

• Split Python constraints per OS (issue #292278707)

• Add –additional-cipd-file argument (issue #292280529)

• Upgrade Python cryptography to 41.0.2

• Upgrade ipython to 8.12.2

• Upgrade PyYAML to 6.0.1

• Add Python constraints with hashes (issue #287302102)

• Bump pip and pip-tools

• Add coverage utilities (issue #279161371)

pw_fuzzer

A fuzzer example was updated to more closely follow Pigweed code conventions.

• Update fuzzers to use Pigweed domains

pw_hdlc

Communication errors are now handled more gracefully.

• Detect comms errors in Python

• Add target to Bazel build

pw_i2c

An RPC service was added. Docs and code comments were updated to use responder and initiator terminology consistently.

• Standardize naming on initiator/responder

• Add i2c rpc service

pw_i2c_mcuxpresso

• Allow for static initialization of initiator

• Add test to ensure compilation of module

pw_ide

• Support multiple comp DB search paths (issue #280363633)

pw_interrupt

Work continued on how facade backend selection works in Bazel.

• Add backend for xtensa processors

• Tidy up target compatibility (issue #272090220)

• Remove cpu-based backend selection (issue #272090220)

• Add backend constraint setting (issue #272090220)

• Remove redundant Bazel targets (issue #290359233)

pw_log_rpc

A docs section was added that explains how pw_log, pw_log_tokenized, and pw_log_rpc interact with each other.

• Explain relation to pw_log and pw_log_tokenized

pw_package

Raspberry Pi Pico and Zephyr support improved.

• Add picotool package installer

• Handle windows Zephyr SDK setup

• Run Zephyr SDK setup.sh after syncing from CIPD

pw_perf_test

• Remove redundant Bazel targets (issue #290359233)

pw_presubmit

• Add ifndef/define check (issue #287529705)

• Remove deprecated gn_docs_build step

• Fix issues with running docs_build twice

• Add Rust docs to docs site

pw_protobuf_compiler

• Disable legacy namespace

• Transition to our own proto compiler rules (issue #234874064)

• Allow external usage of macros

pw_ring_buffer

pw_ring_buffer now builds with -Wconversion enabled.

• Conversion warning cleanups (issue #259746255)

pw_rpc

• Create client call hook in Python client

• Provide way to populate response callbacks during tests

• Add Soong rule for pwpb echo service

pw_rpc_transport

• Add more Soong rules

pw_rust

We are preparing pigweed.dev to automatically link to auto-generated Rust module documentation when available.

• Add combined Rust doc support

• Update @rust_crates sha

pw_spi

We updated docs and code comments to use initiator and responder terminology consistently.

• Standardize naming on initiator/responder

pw_status

• Add Clone and Copy to Rust Error enum

pw_stream

We continued work on Rust support.

• Fix Doxygen typo

• Add read_exact() an write_all() to Rust Read and Write traits

• Clean up rustdoc warnings

• Add Rust varint reading and writing support

• Refactor Rust cursor to reduce monomorphization

• Add Rust integer reading support

• Move Rust Cursor to it’s own sub-module

pw_stream_uart_linux

A new UART Linux backend for pw_stream was added.

• Add stream for UART on Linux

pw_sync

C++ lock traits were added and used.

• Improve Borrowable lock traits and annotations (issue #261078330)

• Add lock traits

pw_sync_freertos

• Fix ODR violation in tests

pw_sys_io

• Add android to alias as host system (issue #272090220)

• Add chromiumos to alias as host system (issue #272090220)

pw_system

• Update IPython init API

• Remove redundant Bazel targets (issue #290359233)

pw_tokenizer

We refactored the pw_tokenizer docs to adhere to 0102: Consistent Module Documentation.

• Update tagline, restore missing info, move sections

• Migrate the proto docs (SEED-0102)

• Remove stub sections and add guides link (SEED-0102)

• Migrate the custom macro example (SEED-0102)

• Migrate the Base64 docs (SEED-0102)

• Migrate token collision docs (SEED-0102)

• Migrate detokenization docs (SEED-0102)

• Migrate masking docs (SEED-0102)

pw_toolchain

The build system was modified to use relative paths to avoid unintentionally relying on the path environment variable. Map file generation is now optional to avoid generating potentially large map files when they’re not needed.

• Test trivially destructible class

• Make tools use relative paths (issue #290848929)

• Support conditionally creating mapfiles

pw_trace_tokenized

• Replace singletons with dependency injection

• Remove redundant Bazel targets (issue #290359233)

pw_unit_test

• Update metadata test type for unit tests

pw_varint

• Update Rust API to return number of bytes written

pw_watch

We fixed an issue where builds were getting triggered when files were opened or closed without modication.

• Trigger build only on file modifications

pw_web

• Remove dependency on ‘crc’ and ‘buffer’ NPM packages

• Update theme token values and usage

• Add disconnect() method to WebSerialTransport

• Add docs section for log viewer component

Build

bazel

• Add host_backend_alias macro (issue #272090220)

• Fix missing deps in some modules

• Support user bazelrc files

• Update rules_python to 0.24.0 (issue #266950138)

build

• Use remote Java runtime for Bazel build (issue #291791485)

• Add Rust toolchain to Bazel macOS build (issue #291749888)

• Mark linux-only Bazel build targets

Targets

targets/rp2040_pw_system

Some of the Pico docs incorrectly referred to another hardware platform.

• Fix references to STM32 (issue #286652309)

Language support

python

• Remove setup.py files

rust

• Add rustdoc links for existing crates

OS support

zephyr

• Add project name to unit test root

• Add pigweed root as module

• Fix setup.sh call

Docs

We added a feature grid to the homepage and fixed outdated info in various docs.

• pigweed.dev feature grid

• Mention SEED-0102 in module_structure.rst (issue #286477675)

• Remove outdated Homebrew info in getting_started.rst (issue #287528787)

• Fix “gn args” examples which reference pw_env_setup_PACKAGE_ROOT

• Consolidate contributing docs in site nav

SEEDs

SEED-0107

• Claim SEED number

SEED-0108

• Claim SEED number

Third party

third_party

• Remove now unused rules_proto_grpc

third_party/mbedtls

• 3.3.0 compatibility (issue #293612945)