Bazel Proposals and Design Documents

This is an index of all proposals and design documents for Bazel.

Workflow

New proposals follow the design process and are sent for review on the bazel-dev mailing list.

State diagram of the design process

Index

Implemented

Last updated	Title	Author(s) alias	Category
2019-04-22	Move //tools/build_defs/pkg to rules_pkg	@aiuto	Bazel
2019-05-10	Bazel with NPM package manager	@ichern	External Repositories
2019-05-27	Authentication for ctx.download	@aehlig	External Repositories
2019-04-29	Forcing non-cache-hits in the repository cache	@aehlig	External Repositories
2019-04-05	Handling download failures	@aehlig	External Repositories
2018-12-14	Versioned Documentation	@jin	Documentation
2018-11-26	Update Download Functions in repository_ctx	@dkelmer	External Repositories
2018-11-14	Platform Inheritance	@katre	Configurability
2018-11-09	Config Setting Chaining	@gregestren	Configurability
2018-10-29	Progress reporting for external repositories	@aehlig	External Repositories
2018-11-10	Symlinks in Remote Execution	@buchgr	Remote Execution
2018-08-27	Args Directory Support	@tomlu	Skylark
2018-08-20	Skylark API to the C++ toolchain	@mhlopko	C++
2018-08-03	Skyframe threading model	@tomlu	Skyframe
2018-07-13	Bazel hashing of external directory output	@aehlig	External Repositories
2018-05-24	Unified Configuration Transitions	@gregestren	Configurability
2018-04-26	Per-Rule Execution Platform Constraints	@katre	Configurability
2017-10-06	Dynamic Bazel Configurations	@gregestren	Configurability
2017-03-03	Label-keyed String Dictionary Type for Build Attributes	@serynth	Configurability
2017-01-20	Aspect required providers	@tomlu, @dslomov	Starlark
2017-01-20	Aspects-on-aspects	@dslomov	Starlark
2016-10-18	Invalidation of remote repositories	@damienmg	External Repositories
2016-10-11	Distribution Artifact for Bazel	@aehlig	Release
2016-09-30	Central cache for external repositories	@jin	External Repositories
2016-09-05	Building Python on Windows	@meteorcloudy	Python, Windows
2016-06-21	Specifying environment variables	@aehlig	Bazel
2016-06-02	Sandboxing	@philwo	Bazel
2016-05-26	Implementing Beautiful Error Messages (Loading Phase)	@laurentlb	Bazel
2016-05-23	Beautiful error messages	@laurentlb	Bazel
2016-04-18	Parameterized Skylark Aspects	@dslomov, lindleyf	Skylark
2016-02-16	Generating C++ crosstool with a Skylark Remote Repository	@damienmg	Toolchains
2015-07-02	Skylark Remote Repositories	@damienmg	External repositories

Approved

Last updated	Title	Author(s) alias	Category
2019-08-26	Versioned Runtime APIs under Platforms & Toolchains	@aragos	Configurability
2019-06-22	Target-level execution properties	@agoulti	Configurability
2019-07-11	Load Bazel Protobuf rules from @rules_proto	@Yannic	Protobuf
2019-05-08	Android Native to Starlark Migration	@timpeut	Android
2019-04-12	Propagate tags from the targets to actions	@ishikhman	Bazel, Starlark
2019-03-22	Execution Transitions	@katre	Configurability
2019-03-22	Toolchain Transitions	@katre	Configurability
2019-02-12	Bazel Constraint Equality	@aragos	Configurability
2019-01-15	Bazel Starlark API: add ctx.resolve_tools	@laszlocsomor	Starlark
2019-01-11	Selecting Between Python 2 and 3	@brandjon	Python
2018-11-16	Old Flags to Platform Migration	@aragos	Configurability
2018-11-14	Auto-configured Host Platform	@katre	Configurability
2018-11-05	Multiplex persistent worker	@borkaehw	Bazel
2018-10-15	Managing Breaking Changes in Bazel	@dslomov	Community
2018-09-04	Starlark Build Configuration	@juliexxia, @gregestren	Configurability
2018-08-20	Crosstool in Skylark	@scentini, @mhlopko	C++
2018-08-14	Decoupling android_ndk_repository from Bazel	@jin	Android
2018-04-19	Separating Build API from Bazel	@c-parsons	Skylark
2018-04-06	Bazel External Dependencies Roadmap	@dslomov	External Repositories
2018-03-29	Semantics of the expansion of Labels	@aehlig	External Repositories
2017-07-13	Improved Command Line Reporting	@cvcal	Bazel
2016-08-04	Extensibility For Native Rules	@dslomov	Skylark
2016-06-06	Declared Providers	@dslomov, @laurentlb	Skylark
2018-07-31	Splitting large BEP events	@buchgr	Build Event Protocol

Under review

Last updated	Title	Author(s) alias	Category
2019-10-24	Visibility for source files	@aehlig	Build API
2019-10-15	Visibility for implicit attributes	@aehlig	Build API
2019-10-15	Structured Compiler Diagnostics	@illicitonion	Build Event Protocol, Build API
2019-08-23	Execution Platforms vs. Strategies	@aragos	Configurability
2019-08-21	s/skydoc/stardoc/g: a plan	@jin	Documentation
2019-08-22	Replacing native <lang>_proto_library rules with Starlark	@Yannic	Protobuf
2019-07-23	Always dirty repository rules	@ichern	External Repositories
2019-05-02	HTTP downloads with Authorization using .netrc	@genrym	External Repositories
2019-04-16	Common Bazel Constraints	@gregestren	Configurability
2019-04-09	Experimental Content-Based Output Paths	@gregestren	Configurability
2018-11-07	Starlark Build Configurations - Parameterized-Transitions API	@juliexxia	Configurability
2019-02-12	Design for a Python Toolchain	@brandjon	Python
2019-01-24	Bazel Federation	@dslomov, @laurentlb	Community
2018-12-03	On custom shell toolchain for Bazel Starlark rules	@ichern	Toolchains, Starlark
2018-11-07	Recursive Workspaces	@aehlig	External Repositoires
2018-11-07	Starlark Build Configurations - Parameterized-Transitions API	@juliexxia	Configurability
2018-10-24	Resource auto-tuning via flags	@jmmv	Performance
2018-10-23	Partial C++ Starlark API	@oquenchil	C++
2018-08-07	Repository Remapping Revisited	@dkelmer	External Repositories
2018-05-23	Crosstool in Skylark	@mhlopko	C++
2018-04-20	Bazel Rules Curation	@laurentlb	Community
2018-04-12	Extending the design of WORKSPACE files	@aehlig, @dslomov	External Repositories
2017-12-01	Namespaces when using multiple bazel repositories	@aehlig, @dslomov	External Repositories

Draft

Last updated	Title	Author(s) alias	Category
2019-04-18	Remote Repository Cache	jmillikin	External Repositories
2019-04-05	Propagate tags from the targets to the actions	@ishikhman	Bazel, Starlark
2019-01-14	Delaying of load statements	@aehlig	External Repositories
2018-11-27	Repository rules with multiple return values	@aehlig	External Repositories
2018-11-09	Customizing the Python Stub Template	@brandjon	Python
2018-07-24	Test execution on Windows without Bash	@laszlocsomor	Windows
2018-06-28	Shrinking the Bazel binary	@buchgr, @meistert	Bazel
2018-06-28	External C/C++ libraries rules	@ichern	Bazel
2018-06-20	C++ rules skylark migration plan	@mhlopko	C++
2018-06-18	Name resolution	@laurentlb	Skylark
2018-06-15	Skylark API to the C++ toolchain	@mhlopko	C++, Skylark
2018-04-26	Garbage Collection for the Repository Cache	@aehlig	External Repositories
2018-04-06	Bazel Runfiles Libraries	@laszlocsomor	Bazel
2018-03-23	Moving Skylark out of Bazel	@brandjon	Skylark
2018-03-07	Diamond Splitting for External Repositories	@dslomov	External Repositories
2018-03-05	Output Map Madness	@brandjon	Skylark
2017-12-07	External Repositories: The Future	@aehlig, @dslomov	External Repositories
2017-10-06	A Brave New World for the Bazel WORKSPACE File	@mattmoor, @dslomov, @davidstanke, @damienmg	External Repositories
2016-07-25	Saner Skylark Sets	@dslomov	Skylark

Dropped

Last updated	Title	Author(s) alias	Category
2019-08-22	Non-Hermetic Tool Paths in Platforms	@aragos	Configurability
2019-08-01	Platforms and Strategies	@katre	Configurability, Execution Strategy
2018-06-14	Platforms and Configurations	@katre	C++, Skylark
2016-09-19	Recursive WORKSPACE file parsing	@kchodorow	External Repositories
2015-03-06	bazel init a.k.a ./configure for Bazel	@damienmg	Bazel