CHANGELOG.md - bazel - Git at Google

 ## Release 0.2.0 (2016-02-18)

 ```
 Baseline: 9e100ac
 ```

 Incompatible changes:

   - ObjC compile actions for J2ObjC-translated code now only has
     access to headers from the java deps of the associated original
     java rule.
     These compile actions no longer takes the compiler options
     specified in "copts" attribute on objc_binary/ios_test rules.
     J2ObjC dead code removal (enabled through flag
     "--j2objc_dead_code_removal") now happens *after* ObjC
     compilation.
   - maven_jar no longer supports separate artifact_id, group_id, and
     verison fields. This information should be provided in the
     artifact field,
     instead.

 New features:

   - Better support for toolchains that don't have a dynamic linker.
   - build_file_content attribute added to new_git_repository,
     new_http_archive, and new_local_repository.
   - Add support for .tar.bz2 archives to http_archive rules.

 Important changes:

   - The --skyframe flag is no longer available for the build command.
   - The --artifacts flag was removed from the dump command.
   - The sha256 attribute is now optional (although recommended!) for
     remote repository rules.
   - Add instrumented file provider support to Skylark rules.
   - Add imports attribute to native Python rules.
   - Allow overriding -gsplit-dwarf from copts.
   - Improved sandbox performance on XFS filesystems.

 ## Release 0.1.5 (2016-02-05)

 ```
 Baseline: 3a95f35
    + 8378cd8: Rollback of commit
               a9b84575a32476a5faf991da22b44661d75c19b6.
 ```

 Incompatible changes:

   - Set stamping to false by default (i.e., --nostamp)
   - Removed --objc_dump_syms_binary.
   - Removes --objc_gcov_binary flag.
   - Remove JAVAC "Make" variable
   - The startup flag --blaze_cpu is removed,

 New features:

   - A new java test runner that support XML output and test filtering
     is supported. It can be used by specifying --nolegacy_bazel_java_test
     or by specifying the test_class attribute on a java_test.
   - Skylark aspects can now specify configuration fragment
     dependencies with fragments and host_fragments like rules can.

 Important changes:

   - Support for downloading remote resources through proxies by
     setting HTTP_PROXY (or HTTPS_PROXY).
   - Timestamps within Android apks are removed to make apks
     deterministic.
   - Support aggregation over existing rules in Skylark extensions
     through native.rules and native.rule.
   - A tools/bazel script in the workspace will be executed
     as an opportunity to use a fixed version of Bazel (not
     implemented for the homebrew recipe yet).
   - --noimplicit_deps and --nohost_deps work correctly for Aspect
     attributes.
   - JDK-related targets are now available via @local_jdk (instead of
     @local-jdk).
   - j2objc tools can now be accessed via @bazel_j2objc, not
     @bazel-j2objc.
   - Repository rules must use names that are valid workspace names.
   - [rust] Update to Rust 1.6
   - Add support for .tar.xz archives to http_archive rules.
   - Make C++ modules compatible with tools using
     --compilation_prerequisites_only
   - [d] Update to DMD 2.070.0

 ## Release 0.1.4 (2016-01-15)

 ```
 Baseline: e933d5e
    + 3d796fe: Rollback of commit
               ac6ed79e1a3fa6b0ca91657b28e2a35f7e49758c.
    + 7a02e5d: Fix installer under OS X
    + 848740c: Fix bazel version for debian package
    + 7751d43: Add a method for getting the root of a rule workspace
               to the Label method
 ```

 Important changes:

   - add loadfiles() query operator, to find skylark files loaded by
     targets.
   - Added ability to declare and use aspects in Skylark.
   - Skylark load statements may now reference .bzl files via build
     labels, in addition to paths. In particular, such labels can be
     used to reference Skylark files in external repositories; e.g.,
     load("@my_external_repo//some_pkg:some_file.bzl", ...).
     Path-based loads are now deprecated and may be disabled in the
     future. Caveats: Skylark files currently do not respect package
     visibility; i.e., all Skylark files are effectively public. Also,
     loads may not reference the special //external package.
   - Relative paths can now be used for 'path' with
     new_local_repository and local_repository.

 ## Release 0.1.3 (2016-01-07)

 ```
 Baseline: 23ad8f6
    + de2183d: Only depend on the WORKSPACE file for external files
               that are under the external/ directory, i.e. were
               created by Bazel.
    + f8f855c: Rollback of commit
               12bad3af0eade9c4b79d76f9e1c950ad2e3214c2.
    + f627562: Stop parsing the WORKSPACE file when a parse error is
               detected
    + 763f139: Add -fno-canonical-system-headers to CROSSTOOL files so
               that gcc doesn't resolve symlinks in .d files, which
               would confuse Blaze.
    + b95995b: Use openjdk7 as dependency for debian package of jdk7
               flavor
 ```

 New features:

   - Skylark macros are now enabled in WORKSPACE file.
   - .bazelrc allows workspace-relative imports as "import
     %workspace%/path/to/rcfile"
   - Evaluate the query expression in a file by passing
     --query_file=<file> to query

 Important changes:

   - Remove obsolete --objc_per_proto_includes flag.
   - iOS apps and extensions now have launch_storyboard
   - Passing multiple JVM options via a single --host_jvm_args flag is
     now deprecated. Pass each JVM option behind its own
     --host_jvm_args flag.
   - Resources defined locally on an android_library rule will respect
     the neverlink attribute.
   - Update Rust to 1.4
   - Fix resource handling for exported android_library rules
   - Files in external repositories are now treated as mutable, which
     will make the correctness guarantees of using external
     repositories stronger (existent), but may cause performance
     penalties.

 ## Release 0.1.2 (2015-11-20)

 ```
 Baseline: ee0ade3
    + 1e66ccd: RELNOTES: Symlink dirents of directories containing a
               file named
               "DONT_FOLLOW_SYMLINKS_WHEN_TRAVERSING_THIS_DIRECTORY_VIA
               _A_RECURSIVE_TARGET_PATTERN" will *not* be traversed
               for transitive target patterns. The motivation here is
               to allow directories that intentionally contain wonky
               symlinks (e.g. foo/bar -> foo) to opt out of being
               consumed by Blaze. For example, given
    + f5773fc: Set the ijar MAX_BUFFER_SIZE to 256 MB
 ```

 New features:

   - java_library now supports the proguard_specs attribute for
     passing Proguard configuration up to Android (not Java) binaries.
   - http_file can specify "executable" to make the downloaded file
     runnable.
   - Debian and tar packaging is now supported
     (see tools/build_defs/pkg/README.md).
   - cpxx_builtin_include_directory specifications allow more
     flexibility.
   - accept %crosstool_top% in cxx_builtin_include_directory
   - android_binary now supports proguard_apply_mapping to re-use a
     previously generated proguard mapping.

 Important changes:

   - remove webstatusserver (--use_webstatusserver).
   - Add support for objc textual headers, which will not be compiled
     when modules are enabled.
   - actoolzip, momczip and swiftstdlibtoolzip have all been made into
     bash scripts and have been renamed to actoolwrapper, momcwrapper
     and swiftstdlibtoolwrapper respectively. The old versions will be
     deleted in a later change.
   - [rust] Add rust_bench_test and rust_doc_test rules and improve
     usability of rust_test tule.
   - Java rules now support a resource_strip_prefix attribute that
     allows the removal of path prefixes from Java resources.
   - [docker_build] incremental loading is default now.
     Specify explicitly //package:target.tar (with the .tar extension)
     to obtain the full image.
   - --ios_signing_cert_name allows specifying a cert for iOS app
     signing
   - Go rules for Bazel.
   - [jsonnet] Update to Jsonnet 0.8.1.
   - [jsonnet] Add vars and code_vars attributes to jsonnet_to_json to
     allow passing external variables to Jsonnet via --var and
     --code_var.
   - Adds --override_workspace_root blaze flag to hand-set
     workspace_root and mainGroup in xcodeproj.
   - Allow dots in package names.
   - When used as a forwarding rule (i.e., has no sources),
     android_library
     will also forward any exported_plugins in its dependencies.
   - Add support for Windows-created zip files with non-posix
     permissions.
   - [jsonnet] Add jsonnet_to_json_test rule for testing Jsonnet code.
   - C++ compile actions run in a sandbox now on systems that support
     sandboxed execution.
   - The names of the clang compilers in the Android NDK crosstool no
     longer reference gcc.
   - 420 dpi is now a valid density for andoid_binary.densities.
   - Bazel does strict validation of include files now to ensure
     correct incremental builds. If you see compilation errors when
     building C++ code, please make sure that you explicitly declare
     all header files in the srcs or hdrs attribute of your cc_*
     targets and that your cc_* targets have correct "deps" on
     cc_library's that they use.
   - [jsonnet] Fix jsonnet_to_json rule to read code_vars from
     code_vars instead of vars.
   - Tests, genrules, and Skylark actions without the
     "requires-network" tag will no longer be able to access the
     network.
   - C++ libraries no longer need includes = ["."] (or similar copts)
     to include paths relative to a remote repository's root.
   - Support exports attribute for android_library
   - Symlink dirents of directories containing a file named
     "DONT_FOLLOW_SYMLINKS_WHEN_TRAVERSING_THIS_DIRECTORY_VIA_A_RECURSI
     VE_TARGET_PATTERN" will *not* be traversed for transitive target
     patterns. The motivation here is to allow directories that
     intentionally contain wonky symlinks (e.g. foo/bar -> foo) to opt
     out of being consumed by Blaze.

 ## Release 0.1.1 (2015-10-05)

 ```
 Baseline: 22616ae
    + 1ef338f: Rollback of "Propagates cc_library linkopts attribute
               to dependent objc_libraries.": breaks certain
               objc_binary build targets.
    + 5fb1073: Reintroduce an inconsistency check (albeit, in a weaker
               form) removed by a previous change that was trying to
               optimize away a filesystem call.
    + 6d00468b2eb976866cfb814d562e0d53a580a46f: Add IdlClass to the embedded default android tools
               repository and rearrange BuildJar's JarHelper so that
               it too can be embedded.
    + a5199039934a2e399a7201adc0d74e2f2d2b0ff3: Fixes Android integration tests by wiring up idlclass
               rules in integration environment.
 ```

 Incompatible changes:

   - Bazel requires JDK 8 to run.
   - Attribute "copts" is removed from j2objc_library.

 New features:

   - a cc_binary rule may list '.s' and '.asm' files in the srcs
   - Support for build with libsass.
   - labels in "linkopts" may match any label in either "deps" or
     "srcs" to be considered valid.
   - Maven servers that require username & password authentication are
     now supported (see maven_server documentation).

 Important changes:

   - Support empty plist files
   - The <compatible-screens> section of the AndroidManifest.xml will
     not be overwritten if it already contains a <screen> tag for each
     of the densities specified on the android_binary rule.
   - Add Jsonnet rules to Bazel
   - Remove deprecated xcode_options flag.
   - Workspace names are now restricted to being in their base
     directory
     (that is, the names cannot contain up-level references or /./).
   - j2objc_library on Bazel now transpiles transitive proto_library
     dependencies. (Note that java_* rules in Bazel do not yet support
     protos; currently they ignore proto dependencies.)
   - new_http_archive can specify a root directory.
   - Adds support for dylibs on devices for Xcode 7.
   - [d] d_docs rules now depend on a d_binary, a d_library or
     d_source_library.
   - [docker] docker_build now set the permission to 0555 to files
     added to the layer, use `mode = "0644"` to use the legacy behavior.
   - android_binary now has a main_dex_proguard_specs attribute to
     specify which classes should be in the main dex.
   - [rust] Add rust_docs rule for generating rustdoc.
 ## Release 0.1.0 (2015-09-08)

 ```
 Baseline: a0881e8
    + 87374e6: Make android_binary use a constant, hard-coded,
               checked-in debug key.
    + 2984f1c: Adds some safety checks in the Bazel installer
    + 4e21d90: Remove BUILD.glob and incorporate the necessary
               filegroups into the android_{ndk,sdk}_repository rules
               themselves.
    + 1ee813e: Fix Groovy rules to work with sandboxing
    + 8741978: Add initial D rules to Bazel.
    + 2c2e70d: Fix the installer and fixing the package shiped into
               binary version of Bazel.
 ```

 Initial release.
	## Release 0.2.0 (2016-02-18)

	```
	Baseline: 9e100ac
	```

	Incompatible changes:

	- ObjC compile actions for J2ObjC-translated code now only has
	access to headers from the java deps of the associated original
	java rule.
	These compile actions no longer takes the compiler options
	specified in "copts" attribute on objc_binary/ios_test rules.
	J2ObjC dead code removal (enabled through flag
	"--j2objc_dead_code_removal") now happens after ObjC
	compilation.
	- maven_jar no longer supports separate artifact_id, group_id, and
	verison fields. This information should be provided in the
	artifact field,
	instead.

	New features:

	- Better support for toolchains that don't have a dynamic linker.
	- build_file_content attribute added to new_git_repository,
	new_http_archive, and new_local_repository.
	- Add support for .tar.bz2 archives to http_archive rules.

	Important changes:

	- The --skyframe flag is no longer available for the build command.
	- The --artifacts flag was removed from the dump command.
	- The sha256 attribute is now optional (although recommended!) for
	remote repository rules.
	- Add instrumented file provider support to Skylark rules.
	- Add imports attribute to native Python rules.
	- Allow overriding -gsplit-dwarf from copts.
	- Improved sandbox performance on XFS filesystems.

	## Release 0.1.5 (2016-02-05)

	```
	Baseline: 3a95f35
	+ 8378cd8: Rollback of commit
	a9b84575a32476a5faf991da22b44661d75c19b6.
	```

	Incompatible changes:

	- Set stamping to false by default (i.e., --nostamp)
	- Removed --objc_dump_syms_binary.
	- Removes --objc_gcov_binary flag.
	- Remove JAVAC "Make" variable
	- The startup flag --blaze_cpu is removed,

	New features:

	- A new java test runner that support XML output and test filtering
	is supported. It can be used by specifying --nolegacy_bazel_java_test
	or by specifying the test_class attribute on a java_test.
	- Skylark aspects can now specify configuration fragment
	dependencies with fragments and host_fragments like rules can.

	Important changes:

	- Support for downloading remote resources through proxies by
	setting HTTP_PROXY (or HTTPS_PROXY).
	- Timestamps within Android apks are removed to make apks
	deterministic.
	- Support aggregation over existing rules in Skylark extensions
	through native.rules and native.rule.
	- A tools/bazel script in the workspace will be executed
	as an opportunity to use a fixed version of Bazel (not
	implemented for the homebrew recipe yet).
	- --noimplicit_deps and --nohost_deps work correctly for Aspect
	attributes.
	- JDK-related targets are now available via @local_jdk (instead of
	@local-jdk).
	- j2objc tools can now be accessed via @bazel_j2objc, not
	@bazel-j2objc.
	- Repository rules must use names that are valid workspace names.
	- [rust] Update to Rust 1.6
	- Add support for .tar.xz archives to http_archive rules.
	- Make C++ modules compatible with tools using
	--compilation_prerequisites_only
	- [d] Update to DMD 2.070.0

	## Release 0.1.4 (2016-01-15)

	```
	Baseline: e933d5e
	+ 3d796fe: Rollback of commit
	ac6ed79e1a3fa6b0ca91657b28e2a35f7e49758c.
	+ 7a02e5d: Fix installer under OS X
	+ 848740c: Fix bazel version for debian package
	+ 7751d43: Add a method for getting the root of a rule workspace
	to the Label method
	```

	Important changes:

	- add loadfiles() query operator, to find skylark files loaded by
	targets.
	- Added ability to declare and use aspects in Skylark.
	- Skylark load statements may now reference .bzl files via build
	labels, in addition to paths. In particular, such labels can be
	used to reference Skylark files in external repositories; e.g.,
	load("@my_external_repo//some_pkg:some_file.bzl", ...).
	Path-based loads are now deprecated and may be disabled in the
	future. Caveats: Skylark files currently do not respect package
	visibility; i.e., all Skylark files are effectively public. Also,
	loads may not reference the special //external package.
	- Relative paths can now be used for 'path' with
	new_local_repository and local_repository.

	## Release 0.1.3 (2016-01-07)

	```
	Baseline: 23ad8f6
	+ de2183d: Only depend on the WORKSPACE file for external files
	that are under the external/ directory, i.e. were
	created by Bazel.
	+ f8f855c: Rollback of commit
	12bad3af0eade9c4b79d76f9e1c950ad2e3214c2.
	+ f627562: Stop parsing the WORKSPACE file when a parse error is
	detected
	+ 763f139: Add -fno-canonical-system-headers to CROSSTOOL files so
	that gcc doesn't resolve symlinks in .d files, which
	would confuse Blaze.
	+ b95995b: Use openjdk7 as dependency for debian package of jdk7
	flavor
	```

	New features:

	- Skylark macros are now enabled in WORKSPACE file.
	- .bazelrc allows workspace-relative imports as "import
	%workspace%/path/to/rcfile"
	- Evaluate the query expression in a file by passing
	--query_file=<file> to query

	Important changes:

	- Remove obsolete --objc_per_proto_includes flag.
	- iOS apps and extensions now have launch_storyboard
	- Passing multiple JVM options via a single --host_jvm_args flag is
	now deprecated. Pass each JVM option behind its own
	--host_jvm_args flag.
	- Resources defined locally on an android_library rule will respect
	the neverlink attribute.
	- Update Rust to 1.4
	- Fix resource handling for exported android_library rules
	- Files in external repositories are now treated as mutable, which
	will make the correctness guarantees of using external
	repositories stronger (existent), but may cause performance
	penalties.

	## Release 0.1.2 (2015-11-20)

	```
	Baseline: ee0ade3
	+ 1e66ccd: RELNOTES: Symlink dirents of directories containing a
	file named
	"DONT_FOLLOW_SYMLINKS_WHEN_TRAVERSING_THIS_DIRECTORY_VIA
	_A_RECURSIVE_TARGET_PATTERN" will not be traversed
	for transitive target patterns. The motivation here is
	to allow directories that intentionally contain wonky
	symlinks (e.g. foo/bar -> foo) to opt out of being
	consumed by Blaze. For example, given
	+ f5773fc: Set the ijar MAX_BUFFER_SIZE to 256 MB
	```

	New features:

	- java_library now supports the proguard_specs attribute for
	passing Proguard configuration up to Android (not Java) binaries.
	- http_file can specify "executable" to make the downloaded file
	runnable.
	- Debian and tar packaging is now supported
	(see tools/build_defs/pkg/README.md).
	- cpxx_builtin_include_directory specifications allow more
	flexibility.
	- accept %crosstool_top% in cxx_builtin_include_directory
	- android_binary now supports proguard_apply_mapping to re-use a
	previously generated proguard mapping.

	Important changes:

	- remove webstatusserver (--use_webstatusserver).
	- Add support for objc textual headers, which will not be compiled
	when modules are enabled.
	- actoolzip, momczip and swiftstdlibtoolzip have all been made into
	bash scripts and have been renamed to actoolwrapper, momcwrapper
	and swiftstdlibtoolwrapper respectively. The old versions will be
	deleted in a later change.
	- [rust] Add rust_bench_test and rust_doc_test rules and improve
	usability of rust_test tule.
	- Java rules now support a resource_strip_prefix attribute that
	allows the removal of path prefixes from Java resources.
	- [docker_build] incremental loading is default now.
	Specify explicitly //package:target.tar (with the .tar extension)
	to obtain the full image.
	- --ios_signing_cert_name allows specifying a cert for iOS app
	signing
	- Go rules for Bazel.
	- [jsonnet] Update to Jsonnet 0.8.1.
	- [jsonnet] Add vars and code_vars attributes to jsonnet_to_json to
	allow passing external variables to Jsonnet via --var and
	--code_var.
	- Adds --override_workspace_root blaze flag to hand-set
	workspace_root and mainGroup in xcodeproj.
	- Allow dots in package names.
	- When used as a forwarding rule (i.e., has no sources),
	android_library
	will also forward any exported_plugins in its dependencies.
	- Add support for Windows-created zip files with non-posix
	permissions.
	- [jsonnet] Add jsonnet_to_json_test rule for testing Jsonnet code.
	- C++ compile actions run in a sandbox now on systems that support
	sandboxed execution.
	- The names of the clang compilers in the Android NDK crosstool no
	longer reference gcc.
	- 420 dpi is now a valid density for andoid_binary.densities.
	- Bazel does strict validation of include files now to ensure
	correct incremental builds. If you see compilation errors when
	building C++ code, please make sure that you explicitly declare
	all header files in the srcs or hdrs attribute of your cc_*
	targets and that your cc_* targets have correct "deps" on
	cc_library's that they use.
	- [jsonnet] Fix jsonnet_to_json rule to read code_vars from
	code_vars instead of vars.
	- Tests, genrules, and Skylark actions without the
	"requires-network" tag will no longer be able to access the
	network.
	- C++ libraries no longer need includes = ["."] (or similar copts)
	to include paths relative to a remote repository's root.
	- Support exports attribute for android_library
	- Symlink dirents of directories containing a file named
	"DONT_FOLLOW_SYMLINKS_WHEN_TRAVERSING_THIS_DIRECTORY_VIA_A_RECURSI
	VE_TARGET_PATTERN" will not be traversed for transitive target
	patterns. The motivation here is to allow directories that
	intentionally contain wonky symlinks (e.g. foo/bar -> foo) to opt
	out of being consumed by Blaze.

	## Release 0.1.1 (2015-10-05)

	```
	Baseline: 22616ae
	+ 1ef338f: Rollback of "Propagates cc_library linkopts attribute
	to dependent objc_libraries.": breaks certain
	objc_binary build targets.
	+ 5fb1073: Reintroduce an inconsistency check (albeit, in a weaker
	form) removed by a previous change that was trying to
	optimize away a filesystem call.
	+ 6d00468b2eb976866cfb814d562e0d53a580a46f: Add IdlClass to the embedded default android tools
	repository and rearrange BuildJar's JarHelper so that
	it too can be embedded.
	+ a5199039934a2e399a7201adc0d74e2f2d2b0ff3: Fixes Android integration tests by wiring up idlclass
	rules in integration environment.
	```

	Incompatible changes:

	- Bazel requires JDK 8 to run.
	- Attribute "copts" is removed from j2objc_library.

	New features:

	- a cc_binary rule may list '.s' and '.asm' files in the srcs
	- Support for build with libsass.
	- labels in "linkopts" may match any label in either "deps" or
	"srcs" to be considered valid.
	- Maven servers that require username & password authentication are
	now supported (see maven_server documentation).

	Important changes:

	- Support empty plist files
	- The <compatible-screens> section of the AndroidManifest.xml will
	not be overwritten if it already contains a <screen> tag for each
	of the densities specified on the android_binary rule.
	- Add Jsonnet rules to Bazel
	- Remove deprecated xcode_options flag.
	- Workspace names are now restricted to being in their base
	directory
	(that is, the names cannot contain up-level references or /./).
	- j2objc_library on Bazel now transpiles transitive proto_library
	dependencies. (Note that java_* rules in Bazel do not yet support
	protos; currently they ignore proto dependencies.)
	- new_http_archive can specify a root directory.
	- Adds support for dylibs on devices for Xcode 7.
	- [d] d_docs rules now depend on a d_binary, a d_library or
	d_source_library.
	- [docker] docker_build now set the permission to 0555 to files
	added to the layer, use `mode = "0644"` to use the legacy behavior.
	- android_binary now has a main_dex_proguard_specs attribute to
	specify which classes should be in the main dex.
	- [rust] Add rust_docs rule for generating rustdoc.
	## Release 0.1.0 (2015-09-08)

	```
	Baseline: a0881e8
	+ 87374e6: Make android_binary use a constant, hard-coded,
	checked-in debug key.
	+ 2984f1c: Adds some safety checks in the Bazel installer
	+ 4e21d90: Remove BUILD.glob and incorporate the necessary
	filegroups into the android_{ndk,sdk}_repository rules
	themselves.
	+ 1ee813e: Fix Groovy rules to work with sandboxing
	+ 8741978: Add initial D rules to Bazel.
	+ 2c2e70d: Fix the installer and fixing the package shiped into
	binary version of Bazel.
	```

	Initial release.