Release notes from bazel

Release 0.8.0 (2017-11-27)

2017-11-27T13:16:30Z

Baseline: cff0dc9

Cherry picks:

8a49b15:
Fix ImportError on tools.android for junction_lib
275ae45:
Automated rollback of commit
4869c4e.
d0bf589:
Add a random number to action temp dir
9738f35:
CcProtoLibrary: Don't add dynamic librarys to filesToBuild on
Windows
0d6ff47:
Automated rollback of commit
0ebb3e5.

Incompatible changes:

ctx.fragments.apple.{xcode_version,ios_minimum_os} is not
supported anymore. The same information is accessible through the
target @bazel_tools//tools/osx:current_xcode_config: point an
implicit attribute to it (i.e.
attr.label(default=Label("@bazel_tools//tools/osx:current_xcode_co
nfig")) then use
ctx.attr._xcode_config[apple_common].XcodeVersionConfig].
ctx.fragments.apple.minimum_os_for_platform_type is not supported
anymore. The same information is accessible through the target
@bazel_tools//tools/osx:current_xcode_config: point an implicit
attribute to it (i.e.
attr.label(default=Label("@bazel_tools//tools/osx:current_xcode_co
nfig")) then use
ctx.attr._xcode_config[apple_common].XcodeVersionConfig].minimum_o
s_for_platform_type .
ctx.fragments.apple.sdk_version_for_platform is not supported
anymore. The same information is accessible through the target
@bazel_tools//tools/osx:current_xcode_config: point an implicit
attribute to it (i.e.
attr.label(default=Label("@bazel_tools//tools/osx:current_xcode_co
nfig")) then use
ctx.attr._xcode_config[apple_common].XcodeVersionConfig].sdk_versi
on_for_platform .
--javabase= and --host_javabase=
are not supported anymore. If you need this functionality
java_runtime_suite(name="suite", default=":runtime")
java_runtime(name="runtime", java_home=) is an
alternative.
The flag --incompatible_descriptive_string_representations is no
longer available, old style string representations of objects are
not supported
anymore.
The flag --incompatible_disallow_set_constructor is no longer
available, the deprecated set constructor is not available
anymore.
+= on lists now mutates them. list1 += list2 is now equivalent
to list1.extend(list2) and not equivalent to list1 = list1 + list2 anymore.
the target_apple_env and apple_host_system_env methods on
ctx.fragments.apple are not supported anymore. The same
information is accessible through apple_common.target_apple_env
and apple_common.apple_host_system_env . They need the Xcode
configuration as an argument, which can be obtained by declaring
an implicit dependency on it (i.e.
attr.label(default=Label("@bazel_tools//tools/osx:current_xcode_co
nfig")) and then calling e.g.
apple_common.apple_host_system_env(ctx.attr._xcode_config[apple_co
mmon.XcodeVersionConfig]).
C++ toolchain identifiers are not in the name of the output
directory anymore.
Selecting on "xcode_version" and
"{ios,tvos,macos,watchos}sdk_version" is not supported anymore.
What was config_setting(values={"$FOO_version": $VALUE}) is now
config_setting(flag_values={"@bazel_tools//tools/osx:$FOO_version
flag": $VALUE}).
Selecting on "xcode_version" and
"{ios,tvos,macos,watchos}sdk_version" is not supported anymore.
What was config_setting(values={"$FOO_version": $VALUE}) is now
config_setting(flag_values={"@bazel_tools//tools/osx:$FOO_version
flag": $VALUE}).
The flag --incompatible_disallow_set_constructor is no longer
available, the deprecated set constructor is not available
anymore.
Selecting on "xcode_version" and
"{ios,tvos,macos,watchos}_sdk_version" is not supported anymore.
What was config_setting(values={"$FOO_version": $VALUE}) is now
config_setting(flag_values={"@bazel_tools//tools/osx:$FOO_versi...

New features:

runfiles, sh: Shell scripts may now depend on
//src/tools/runfiles:runfiles_sh_lib and source runfiles.sh. The
script defines the rlocation function which returns runfile
paths on every platform.
In addition to $(location), Bazel now also supports $(rootpath)
to obtain
the root-relative path (i.e., for runfiles locations), and
$(execpath) to
obtain the exec path (i.e., for build-time locations)

Important changes:

android_binary now supports custom debug keys via the debug_key
attribute.
Updated Android proguard to 5.3.3. It now works with android-24+.
--experimental_use_parallel_android_resource_processing and
--experimental_android_use_nocompress_extensions_on_apk are
removed. These features are fully rolled out.
Fixes bazelbuild#2574
Fixes bazelbuild#3834
Enable experimental UI by default.
.
RELNOTES: None.
RELNOTES: No.
Add memory profiler.
[Bazel] {java,cc}proto_library now look for dependencies in
@com_google_protobuf, instead of in @com_google_protobuf$LANG
Improved merge.sh script in cookbook.
Fixing regression to --experimental_remote_spawn_cache
Support for linker scripts in NativeDepsHelper (e.g.,
android_binary)
Skylark semantics flags now affect WORKSPACE files and repository
rules.
ctx.outputs.executable is deprecated. Use DefaultInfo(executable
= ...) instead.
Update "mirror.bazel.build" urls to use https.
Improve --config logging when --announce_rc is present.
Document interaction between test_suite and target exclusions
Replace version numbers for Bazel installers with ""
(because this will change often)
Published command lines should have improved lists of effective
options.
--incremental_dexing_binary_types has been removed. All builds
are supported by incremental dexing (modulo proguard and some
blacklisted dx flags).
Document --host_javabase, --host_java_toolchain

Release 0.7.0 (2017-10-18)

2017-10-18T12:34:10Z

Baseline: 5cc6246

Cherry picks:

e79a110:
Windows,bootstrapping: fix build_windows_jni.sh

Incompatible changes:

The --output=location flag to 'bazel query' cannot be used with
query expressions that involve the 'buildfiles' or 'loadfiles'
operators. This also applies to 'genquery' rules.
Operators for equality, comparison, 'in' and 'not in' are no
longer associative,
e.g. x < y < z is now a syntax error. Before, it was parsed
as: (x < y) < z.
In strings, octal sequences greater than \377 are now forbidden
(e.g. "\600").
Previously, Blaze had the same behavior as Python 2, where
"\450" == "\050".
Using tabulation for identation is now fobidden in .bzl files
load is now a language keyword, it cannot be used as an
identifier
lvalues must have define at least one variable (i.e. we forbid
[] = f()).
Fixed a bug whereby multiple load() statements could appear on
the same line
-extra_checks:off is no longer supported; use
-XepDisableAllChecks instead
java_common.java_toolchain_attr is removed. Depend on the
java_toolchain_alias() rule to accomplish the same thing.
cc_common.cc_toolchain_attr and java_common.java_runtime_attr are
not supported anymore and were replaced with the
cc_toolchain_alias() and java_runtime_alias() rules.
Noop flag --deprecated_generate_xcode_project deleted.
Objects in Skylark are converted to strings in a more descriptive
and less harmful way (they don't leak information that shouldn't
be accessed by Skylark code, e.g. nondeterministic memory addresses
of objects).
set is deprecated in BUILD and .bzl files, please use depset
instead. Ordering names have also been changed, please use "default",
"postorder", "preorder", and "topological" instead of "stable",
"compile", "naive_link", and "link" correspondingly.
Integer overflow (on signed 32 bit numbers) in BUILD/bzl files is
an error.
Keyword-only syntax in a function definition is now forbidden
e.g. def foo(a, *, b) or def foo(a, *b, c)
--incompatible_comprehension_variables_do_not_leak defaults to
"true."
Iteration variable becomes inaccessible after a list/dict
comprehension.
@bazel_tools//tools/build_defs/docker:docker.bzl is no longer
available, please see https://github.com/bazelbuild/rules_docker.

New features:

Zipped LLVM profiles are now supported.
LIPO maps to ThinLTO for LLVM builds.
Change to handle LLVM FDO zipped profile contents correctly.
Do not disable fully dynamic linking with ThinLTO when invoked
via LIPO options.
There is now a 'siblings' query function. See the query
documentation for more details.
Added the print_action command, which outputs the
actions needed to build a given target in the form of an
ExtraActionSummary proto in text format.
android_binary now supports proguard_apply_dictionary to specify
a custom dictionary to use for choosing names to obfuscate
classes and members to.

Important changes:

Windows: bazel clean --expunge works
First argument of 'load' should be a label. Path syntax is
deprecated (label should start with '//' or ':').
Octal prefix '0' is deprecated in favor of '0o' (use 0o777
instead of 0777).
The extension_safe attribute of apple_binary no longer validates
transitive dependencies are compiled against extension_safe APIs.
Parentheses around the tuple are now mandatory in [a for b in c
if 1, 2]
Adjust the thresholds for --test_verbose_timeout_warnings so that
it can recommending timeout increases and won't recommend
timeouts that are too close to the actual timeout.
Iterating on a depset object is deprecated. If you need an
iterable, call the .to_list() method first.
Bazel now uses tools from action_configs in Crosstool by default
(as oposed to using top level tools).
Incremental dexing errors on combination of --multidex=off and
either --main-dex-list or --minimal-main-dex.
When using the dictionary literal syntax, it is now an error to
have duplicated keys (e.g. {'ab': 3, 'ab': 5}).
New property on android_sdk: aapt2
Choose the version of aapt on android_binary
Add idl_preprocessed attribute to android_library, so that
preprocessed aidl files can be passed to android_library for
compiling
Bazel's remote_worker backend for remote execution supports
sandboxing on Linux now. Check
https://github.com/bazelbuild/bazel/blob/master/src/tools/remote_w
orker/README.md for details.
Allows flags that expand to take values.
Make querying attributes formed by selector lists of list types
more efficient by no longer listing every possible combination of
attribute value but by more compactly storing the possible values
of the list.
writing build events to a file is no longer experimental
set --rewrite_calls_to_long_compare to false by default.
ObjC and C++ coverage feature is unified under name 'coverage'
Enable --incremental_dexing for Android builds by default. Note
that some dexopts are incompatible with incremental dexing,
including --force-jumbo.
Evaluation will soon use checked arithmetics and throw an error
instead of overflow/underflow.
Implicit iteration in the CROSSTOOL has been removed, use
explicit 'iterate_over' message.
Add option for Android specific grte_top
Crosstool patches are only applied if the toolchain doesn't define
'no_legacy_features' feature.
'platform_type' is now a mandatory attribute on apple_binary and
apple_static_library rules.
If this change breaks your build, feel free to add platform_type
= 'ios' to any apple_binary and apple_static_library
targets in your project, as this was the previous default
behavior.
Remove apple_watch2_extension build rule. Users should be using
the skylark watchos_application and watchos_extension rules.
https://github.com/bazelbuild/rules_apple has details.
Check stderr to detect if connected to a terminal. Deprecate
--isatty.
Commands that shut down the server (like "shutdown") now ensure
that the server process has terminated before the client process
terminates.
Remove apple_watch1_extension and apple_watch_extension_binary
rules. Users should be using the skylark watchos_application and
watchos_extension rules.
https://github.com/bazelbuild/rules_apple has details.
Windows: Wrapper-less CROSSTOOL becomes default now.
set USE_MSVC_WRAPPER=1 if you still want to use wrapper script.
Ignore --glibc in the Android transition.
Remove --experimental_android_use_singlejar_for_multidex.
nocopts now also filter copts
'strip' action is now configured via feature configuration
The Build Event Service (BES) client now properly supports
Google Applicaton Default Credentials.
Flags from action_config get added first to the command line
first, before the flags from features.
update dexing tools to Android SDK 26.0.1
Bazel Android support now requires build-tools 26.0.1 or later.
bazel info output_path no longer relies on the root directory
filename being equal to the workspace name.
The print function now prints debug messages instead of
warnings.
speedup of incremental dexing tools
--announce_rc now controls whether bazelrc startup options are
printed to stderr.
Removing a few unused objc_provider keys.
Improved logging when workers have to be restarted due to its
files having changed.
Top-level if statements are now forbidden.
Java protos are compiled to Java 7 bytecode.
All Android builds now use the desugar tool to support some Java
8 features by default. To disable, use the --nodesugar_for_android flag.
Skylark-related options may now appear as "common" command
options in the .bazelrc
Python is now required to build bazel.
New --build_runfile_manifests flag controls production of
runfiles manifests.
Enable debug info for Java builds
Allow java_lite_proto_library in the deps of android rules.
.so files in APKs will be memory-page aligned when
android_binary.nocompress_extensions contains ".so" and
--experimental_android_use_nocompress_extensions_on_apk is
specified.
Skylark providers can specify allowed fields and their
documentation.
Support ctx.actions.args() for more efficient Skylark command
line construction.
The remote HTTP/1.1 caching client (--remote_rest_cache) now
distinquishes between action cache and CAS. The request URL for
the action cache is prefixed with 'ac' and the URL for the CAS
is prefixed with 'cas'.
JavaInfo is a preferred alias to java_common.provider.
J2ObjC version updated to 2.0.3.
A new Java coverage implementation is available. Makes possible
coverage for Skylark JVM rules.
Make proguard_apply_dictionary also apply to class and package
obfuscation, not just class members.
android_binary.nocompress_extensions now applies to all files in
the APK, not just resources and assets.
The apple_genrule rule that is distributed with Bazel has been
deleted. Users who wish to use genrules with Xcode's
DEVELOPER_DIR set should use the rules in
https://github.com/bazelbuild/rules_apple instead.
The swift_library rule that is distributed with Bazel has been
deleted. Users who wish to compile Swift should use the rules in
https://github.com/bazelbuild/rules_apple instead.
The Build Event Protocol's File.uri field is now properly
encoded according to RFC2396.
Deprecated: Using the android_library.deps attribute to
implicitly export targets to dependent rules. If your code is
using this feature, Bazel will raise a warning. To fix, please
use android_library.exports to explicitly specify exported
targets. Run with
--experimental_allow_android_library_deps_without_srcs=false to
ensure forward compatibility when this feature is removed in a
future release.
java_common.create_provider is now supported with creating ijars
by default. This introduces incompatibilities for existing users.
Please set use_ijar=False if you don't want to use ijars.
Tests can now write files to TEST_UNDECLARED_OUTPUTS_DIR and
TEST_UNDECLARED_OUTPUTS_ANNOTATIONS_DIR and these will be
reflected under bazel-testlogs.
remove unused --host_incremental_dexing flag
Stop using --undefined dynamic_lookup in Apple links. Enables
unresolved symbol errors.
All test output files included for cached, uncached, and multiple
attempt tests.
Android rules no longer restrict the manifest file to be named
"AndroidManifest.xml".
Boolean flag values will now get normalized to 1 or 0 in
canonicalize-flags output.
added experimental --use_new_category_enum to the help command to
output options grouped by the new type of category.
Expose output jars and jdeps in java_common.provider, when
available.
android_library targets are no longer allowed to use deps to
export targets implicitly; please use android_library.exports
instead.
New depset API
apple_binary and apple_static_library no longer support
compilation attributes such as 'srcs'. If this breaks any
existing targets, you may migrate all such attributes to a new
objc_library target and depend on that objc_library target via
the 'deps' attribute of apple_binary or apple_static_library.

Release 0.6.1 (2017-10-05)

2017-10-05T21:52:24Z

Baseline: 87cc92e

Cherry picks:

a615d28:
Rollback context.actions.args() functionality.
7b091c1:
Add a global failure when a test is interrupted/cancelled.
95b0467:
Cleanups for Skylark tracebacks
cc9c2f0:
Remove the status xml attribute from AntXmlResultWriter
471c0e1:
Release 0.6.0 (2017-09-28)
8bdd409:
Only compute hostname once per server lifetime
0bc9b3e:
Fix bug in NetUtil caching.

Important changes:

Only compute hostname once per server lifetime

Release 0.6.0 (2017-09-28)

2017-09-28T14:36:11Z

Baseline: 87cc92e

Cherry picks:

a615d28:
Rollback context.actions.args() functionality.
7b091c1:
Add a global failure when a test is interrupted/cancelled.
95b0467:
Cleanups for Skylark tracebacks
cc9c2f0:
Remove the status xml attribute from AntXmlResultWriter

Incompatible changes:

Noop flag --deprecated_generate_xcode_project deleted.
Objects in Skylark are converted to strings in a more descriptive
and less harmful way (they don't leak information that shouldn't
be accessed by Skylark code, e.g. nondeterministic memory addresses
of objects).
set is deprecated in BUILD and .bzl files, please use depset
instead. Ordering names have also been changed, please use
"default", "postorder", "preorder", and "topological" instead of
"stable", "compile", "naive_link", and "link" correspondingly.
Integer overflow (on signed 32 bit numbers) in BUILD/bzl files is
an error.
Keyword-only syntax in a function definition is now forbidden
e.g. def foo(a, *, b) or def foo(a, *b, c)
--incompatible_comprehension_variables_do_not_leak defaults to
"true."
Iteration variable becomes inaccessible after a list/dict
comprehension.

New features:

There is now a 'siblings' query function. See the query
documentation for more details.
Added the print_action command, which outputs the
actions needed to build a given target in the form of an
ExtraActionSummary proto in text format.
android_binary now supports proguard_apply_dictionary to specify
a custom dictionary to use for choosing names to obfuscate
classes and members to.

Important changes:

'strip' action is now configured via feature configuration
Flags from action_config get added first to the command line
first,
before the flags from features.
bazel info output_path no longer relies on the root directory
filename being equal to the workspace name.
The print function now prints debug messages instead of
warnings.
speedup of incremental dexing tools
--announce_rc now controls whether bazelrc startup options are
printed to stderr.
Removing a few unused objc_provider keys.
Improved logging when workers have to be restarted due to its
files having changed.
Top-level if statements are now forbidden.
Java protos are compiled to Java 7 bytecode.
All Android builds now use the desugar tool to support some Java
8 features by default. To disable, use the
--nodesugar_for_android flag.
Skylark-related options may now appear as "common" command
options in the .bazelrc
Python is now required to build bazel.
When the lvalue of an augmented assignment is a list, we now
throw an error
before evaluating the code (e.g. a, b += 2, 3).
New --build_runfile_manifests flag controls production of
runfiles manifests.
Enable debug info for Java builds
Allow java_lite_proto_library in the deps of android rules.
.so files in APKs will be memory-page aligned when
android_binary.nocompress_extensions contains ".so" and
--experimental_android_use_nocompress_extensions_on_apk is
specified.
Skylark providers can specify allowed fields and their
documentation.
Support ctx.actions.args() for more efficient Skylark command
line construction.
The remote HTTP/1.1 caching client (--remote_rest_cache) now
distinquishes between action cache and CAS. The request URL for
the action cache is prefixed with 'ac' and the URL for the CAS
is prefixed with 'cas'.
JavaInfo is a preferred alias to java_common.provider.
J2ObjC version updated to 2.0.3.
A new Java coverage implementation is available. Makes possible
coverage for Skylark JVM rules.
Make proguard_apply_dictionary also apply to class and package
obfuscation, not just class members.
When using the dictionary literal syntax, it is now an error to
have duplicated keys (e.g. {'ab': 3, 'ab': 5}).
android_binary.nocompress_extensions now applies to all files in
the APK, not just resources and assets.
The apple_genrule rule that is distributed with Bazel has been
deleted. Users who wish to use genrules with Xcode's
DEVELOPER_DIR set should use the rules in
https://github.com/bazelbuild/rules_apple instead.
The swift_library rule that is distributed with Bazel has been
deleted. Users who wish to compile Swift should use the rules in
https://github.com/bazelbuild/rules_apple instead.

Release 0.5.4 (2017-08-25)

2017-08-25T09:24:03Z

Baseline: 6563b2d

Cherry picks:

d4fa181:
Use getExecPathString when getting bash_main_file
837e1b3:
Windows, sh_bin. launcher: export runfiles envvars
fe9ba89:
grpc: Consolidate gRPC code from BES and Remote Execution. Fixes
bazelbuild#3460, bazelbuild#3486
e8d4366:
Automated rollback of commit
496d3de.
242a434:
bes,remote: update default auth scope.
793b409:
Windows, sh_bin. launcher: fix manifest path
7e4fbbe:
Add --windows_exe_launcher option
91fb38e:
remote_worker: Serialize fork() calls. Fixes bazelbuild#3356
b79a9fc:
Quote python_path and launcher in
python_stub_template_windows.txt
4a2e17f:
Add build_windows_jni.sh back
ce61d63:
don't use methods and classes removed in upstream dx RELNOTES:
update dexing tools to Android SDK 26.0.1
5393a49:
Make Bazel enforce requirement on build-tools 26.0.1 or later.
5fac03570f80856c063c6019f5beb3bdc1672dee:
Fix --verbose_failures w/ sandboxing to print the full command
line
f7bd1acf1f96bb7e3e19edb9483d9e07eb5af070:
Only patch in C++ compile features when they are not already
defined in crosstool
d7f5c12:
Bump python-gflags to 3.1.0, take two
3cb136d:
Add python to bazel's dockerfiles

New features:

Do not disable fully dynamic linking with ThinLTO when invoked
via LIPO options.

Important changes:

Ignore --glibc in the Android transition.
Remove --experimental_android_use_singlejar_for_multidex.
nocopts now also filter copts
The Build Event Service (BES) client now properly supports
Google Applicaton Default Credentials.
update dexing tools to Android SDK 26.0.1
Bazel Android support now requires build-tools 26.0.1 or later.
Fix a bug in the remote_worker that would at times make it crash on Linux. See bazelbuild#3356
The java_proto_library rule now supports generated sources. See bazelbuild#2265

Release 0.5.3 (2017-07-27)

2017-07-27T18:27:31Z

Baseline: 8851852

Cherry picks:

820a46a:
Automated rollback of commit
6d6e872.
ccfb2df:
Allow py_binary to be the executable of a Skylark action or any
SpawnAction on Windows.
0653491:
Fix string representation for the Root class
cd159bc:
sandbox: Allow UNIX sockets on macOS even when block-network is
used.
ad73cba:
Fix python_stub_template.txt to be compatible with Python 2.4.
9a63aff:
Create Windows ZIP release artifact using Bazel
5e57663:
Automated rollback of commit
820a46a.
b6e29ca:
Use the correct function to generate the release notes
0f3481b:
Include instead of <stdint.h>

Incompatible changes:

The --output=location flag to 'bazel query' cannot be used with
query expressions that involve the 'buildfiles' or 'loadfiles'
operators. This also applies to 'genquery' rules.
Operators for equality, comparison, 'in' and 'not in' are no
longer associative, e.g. x < y < z is now a syntax error.
Before, it was parsed as: (x < y) < z.
In strings, octal sequences greater than \377 are now forbidden
(e.g. "\600"). Previously, Blaze had the same behavior as Python 2,
where "\450" == "\050".
Using tabulation for identation is now fobidden in .bzl files
load is now a language keyword, it cannot be used as an
identifier
lvalues must have define at least one variable (i.e. we forbid
[] = f()).
Fixed a bug whereby multiple load() statements could appear on
the same line
-extra_checks:off is no longer supported; use
-XepDisableAllChecks instead
java_common.java_toolchain_attr is removed. Depend on the
java_toolchain_alias() rule to accomplish the same thing.
cc_common.cc_toolchain_attr and java_common.java_runtime_attr are
not supported anymore and were replaced with the
cc_toolchain_alias() and java_runtime_alias() rules.

New features:

Zipped LLVM profiles are now supported.
LIPO maps to ThinLTO for LLVM builds.
Change to handle LLVM FDO zipped profile contents correctly.

Important changes:

Windows: bazel clean --expunge works
First argument of 'load' should be a label. Path syntax is
deprecated (label should start with '//' or ':').
Octal prefix '0' is deprecated in favor of '0o' (use 0o777
instead of 0777).
The extension_safe attribute of apple_binary no longer validates
transitive dependencies are compiled against extension_safe APIs.
Parentheses around the tuple are now mandatory in [a for b in c
if 1, 2]
Adjust the thresholds for --test_verbose_timeout_warnings so that
it can recommending timeout increases and won't recommend
timeouts that are too close to the actual timeout.
Iterating on a depset object is deprecated. If you need an
iterable, call the .to_list() method first.
Bazel now uses tools from action_configs in Crosstool by default
(as oposed to using top level tools).
Incremental dexing errors on combination of --multidex=off and
either --main-dex-list or --minimal-main-dex.
When using the dictionary literal syntax, it is now an error to
have duplicated keys (e.g. {'ab': 3, 'ab': 5}).
New property on android_sdk: aapt2
Choose the version of aapt on android_binary
Add idl_preprocessed attribute to android_library, so that
preprocessed aidl files can be passed to android_library for
compiling
Bazel's remote_worker backend for remote execution supports
sandboxing on Linux now. Check
https://github.com/bazelbuild/bazel/blob/master/src/tools/remote_w
orker/README.md for details.
Allows flags that expand to take values.
Make querying attributes formed by selector lists of list types
more efficient by no longer listing every possible combination of
attribute value but by more compactly storing the possible values
of the list.
Writing build events to a file is no longer experimental
set --rewrite_calls_to_long_compare to false by default.
ObjC and C++ coverage feature is unified under name 'coverage'
Enable --incremental_dexing for Android builds by default. Note
that some dexopts are incompatible with incremental dexing,
including --force-jumbo.
Evaluation will soon use checked arithmetics and throw an error
instead of overflow/underflow.
Implicit iteration in the CROSSTOOL has been removed, use
explicit 'iterate_over' message.
Add option for Android specific grte_top
Crosstool patches are only applied if the toolchain doesn't define
'no_legacy_features' feature.
'platform_type' is now a mandatory attribute on apple_binary and
apple_static_library rules.
If this change breaks your build, feel free to add platform_type
= 'ios' to any apple_binary and apple_static_library
targets in your project, as this was the previous default
behavior.
Remove apple_watch2_extension build rule. Users should be using
the skylark watchos_application and watchos_extension rules.
https://github.com/bazelbuild/rules_apple has details.
Check stderr to detect if connected to a terminal. Deprecate
--isatty.
Commands that shut down the server (like "shutdown") now ensure
that the server process has terminated before the client process
terminates.
Remove apple_watch1_extension and apple_watch_extension_binary
rules. Users should be using the skylark watchos_application and
watchos_extension rules.
https://github.com/bazelbuild/rules_apple has details.
Windows: Wrapper-less CROSSTOOL becomes default now.
set USE_MSVC_WRAPPER=1 if you still want to use wrapper script.

Release 0.5.2 (2017-06-27)

2017-06-27T13:08:46Z

Baseline: e78ad83

Cherry picks:

6802831:
experimental UI: move stopUpdateThread() out of synchronized,
again
019935d:
Fix bug in URI computation in RemoteModule
e9424cf:
Automated rollback of commit
7dec005.
9eea05d:
Switching to Watcher API instead of wait_for_completion, in
preparation for deprecating the wait_for_completion field.
8965981:
Set correct execroot for info
716b527:
Only create a single per-build instance of the remote cache /
executor
1d82d19:
protobuf: Update protobuf jars to be binary compatible with Java
6. Fixes bazelbuild#3198
524b90d:
Change CAS URI to use the "bytestream" scheme instead of being
scheme-less
4929ad7:
Automated g4 rollback of commit
923d7df.
68b9a7e:
Automated g4 rollback of commit
da56606.
2ba693f:
Automated rollback of commit
ce7c4de.

Incompatible changes:

Blaze no longer generates xcode projects. Use tulsi.bazel.build
instead.

Important changes:

Keyword-only syntax in a function definition is deprecated
(e.g. def foo(a, *, b) or def foo(a, *b, c)) and will be
removed in the future.
Attempting to build an Android target without setting up
android_sdk_repository will now produce a helpful error message.
Adds a sha256 attribute to git_repository and new_git_repository.
This can only be used if the remote is a public GitHub
repository. It forces
Bazel to download the repository as a tarball, which will often
be faster and
more robust than cloning it.
Sandboxing is now enabled by default on FreeBSD (via
processwrapper-sandbox).
android_test may use manifest placeholders with 'manifest_merger
= "android"'.
load() statements should be called at the top of .bzl files,
before any
other statement. This convention will be enforced in the future.
Effectively remove sysroot from CppConfiguration and allow it to
use select statements.
proto_library.strict_proto_deps no longer exists.
Flag --explicit_jre_deps is now a noop.
The 'legacy' Android manifest merger is deprecated. Please
upgrade to the 'android' manifest merger, which is the same
merger used by Gradle.
https://developer.android.com/studio/build/manifest-merge.html
Using $(CC_FLAGS) in a GenRule adds a dependency to the c++
toolchain
add one-version enforcement to android_local_test
Skylark support (apple_common.dotted_version(string)) for
building DottedVersion objects to interface with native apple
rules
CC_FLAGS can be defined using 'cc-flags-make-variable' action_config in
CROSSTOOL
ios_framework native rule has been removed. This rule had been
essentially broken for several months now; users should be using
the skylark ios framework rule.
https://github.com/bazelbuild/rules_apple has details.
Clean command no longer uses boolean values for --async,
--expunge, and --expunge_async options.
Partially fixes external J2ObjC support.
'--aspects' can occur more than once on the command line.
--no_ prefix no longer recognized.
Use action_config in crosstool for static library archiving,
remove ar_flag.
Added a new flag --sandbox_writable_path, which asks the sandbox
to
make an existing directory writable when running actions.
bazel test now also computes a default instrumentation filter if
--collect_code_coverage is enabled
n/na
In .bzl files, top-level if statements are deprecated and will
be forbidden
in the future. Move them in a function body instead (or use a
conditional
expression instead: x if condition else y).
ios_device and ios_test are deprecated. Please use the new testing
rules in https://github.com/bazelbuild/rules_apple instead.
bazel query --output package now displays packages from external
repository with the format "@reponame//package". Packages in the
main repository continue to have the format "package".
ctx.expand_make_variables is deprecated.
Bazel posts links to the CAS to the BEP if remote caching /
execution is enabled
bazel info execution_root returns the corrrect directory name
for the execution root.

Release 0.5.1 (2017-06-06)

2017-06-06T09:32:02Z

Baseline: f3ae88e

Cherry picks:

c58ba09:
Release to GCS: put the final release in its own directory
0acead4:
Update protobuf to latest master at a64497c and apply
@laszlocsomor's latest changes from
protocolbuffers/protobuf#2969 on top of it.
d0242ce:
Make symlinks consistent
d953ca8:
Clean VanillaJavaBuilder output directories
755669f:
Pass all the environment variable to Bazel during bootstrapping
6f04166:
Do not mark the JDK7 installer -without-jdk-installer
7205611:
Fix bazelbuild#2958: Installer should not overwrite bazelrc
511c35b:
Bootstrap: move the fail function to the top
8470be1:
Clean up javac and Error Prone targets
4a404de:
Update javac version to 9-dev-r4023-2
36ce4b4:
Update javac version to 9-dev-r4023-2
38949b8:
Migrate off versioned javac and Error Prone targets
1a57d29:
Re-enabling passing -sourcepath via javacopts.
eb565f4:
Make make sure that msys build actually builds msys version
39f328c:
Fix typo. Also do not override host_cpu for msvc.
6248028:
Select correct JDK for windows_msys
c4f271d:
Automated g4 rollback of commit
3e5edaf.
9261809:
Remove process-tools.cc which I forgot to delete during the last
rollback.
baca6e4:
Fix bazelbuild#2982: Bazel installer should not check for installed JDK if
using a bundled JDK.
866ecc8:
Disable msys path conversion on Windows.
cc21998:
Rollforward bazelbuild#2 of: Basic open-source crosstool to support
targeting apple platform types.
0f0ccc4:
Escape % in strings that will appear in Crosstool
3b08f77:
Adding feature for linking C Run-Time library on Windows
3566474:
Do not use sed -E in bootstrap/compile.sh
c3cf7d9:
Reverts non-xcode-available darwin crosstool generation.

Important changes:

Fixes regression in 0.5.0 requiring Xcode to build C++ on OSX.

Release 0.5.0 (2017-05-26)

2017-05-26T12:11:06Z

Baseline: f3ae88e

Cherry picks:

c58ba09:
Release to GCS: put the final release in its own directory
0acead4:
Update protobuf to latest master at a64497c and apply
@laszlocsomor's latest changes from
protocolbuffers/protobuf#2969 on top of it.
d0242ce:
Make symlinks consistent
d953ca8:
Clean VanillaJavaBuilder output directories
755669f:
Pass all the environment variable to Bazel during bootstrapping
6f04166:
Do not mark the JDK7 installer -without-jdk-installer
7205611:
Fix bazelbuild#2958: Installer should not overwrite bazelrc
511c35b:
Bootstrap: move the fail function to the top
8470be1:
Clean up javac and Error Prone targets
4a404de:
Update javac version to 9-dev-r4023-2
36ce4b4:
Update javac version to 9-dev-r4023-2
38949b8:
Migrate off versioned javac and Error Prone targets
1a57d29:
Re-enabling passing -sourcepath via javacopts.
eb565f4:
Make make sure that msys build actually builds msys version
39f328c:
Fix typo. Also do not override host_cpu for msvc.
6248028:
Select correct JDK for windows_msys
c4f271d:
Automated g4 rollback of commit
3e5edaf.
9261809:
Remove process-tools.cc which I forgot to delete during the last
rollback.
baca6e4:
Fix bazelbuild#2982: Bazel installer should not check for installed JDK if
using a bundled JDK.
866ecc8:
Disable msys path conversion on Windows.
cc21998:
Rollforward bazelbuild#2 of: Basic open-source crosstool to support
targeting apple platform types.
0f0ccc4:
Escape % in strings that will appear in Crosstool
3b08f77:
Adding feature for linking C Run-Time library on Windows

Incompatible changes:

Bazel's Linux sandbox no longer mounts an empty tmpfs on /tmp,
instead the existing /tmp is mounted read-write. If you prefer
to have a tmpfs on /tmp for sandboxed actions for increased
hermeticity, please use the flag --sandbox_tmpfs_path=/tmp.
Converting artifacts to strings and printing them now return
"File" instead of "Artifact" to be consistent with the type name.
The return type of depset.to_list() is now a list rather than a
frozen list. (Modifying the list has no effect on the depset.)
Bazel now prints logs in single lines to java.log
--use_dash, --dash_url and --dash_secret are removed.
Remote repositories must define any remote repositories they
themselves use (e.g., if @x//:foo depends on @y//:bar, @y must be
defined
in @x's WORKSPACE file).
Remote repositories must define any remote repositories they
themselves use (e.g., if @x//:foo depends on @y//:bar, @y must be
defined
in @x's WORKSPACE file).
objc_xcodeproj has been removed, use tulsi.bazel.build instead.

New features:

If grte_top is a label, it can now follow non-configurable
redirects.
Optional coverage_files attribute to cc_toolchain
"query --output=build" now includes select()s
Raw LLVM profiles are now supported.

Important changes:

Automatically generate Proguard mapping when resource shrinking
and Proguard are enabled.
New rules in Bazel: proto_library, java_lite_proto_library,
java_proto_library and cc_proto_library
Activate the "dead_strip" feature if objc binary stripping is
enabled.
More stable naming scheme for lambda classes in desugared android
code
Convert --use_action_cache to a regular option
Per-architecture dSYM binaries are now propagated by
apple_binary's AppleDebugOutputsProvider.
Avoid factory methods when desugaring stateless lambdas for
Android
desugar calls to Objects.requireNonNull(Object o) with
o.getClass() for android
Add an --copy_bridges_from_classpath argument to android
desugaring tool
Change how desugar finds desugared classes to have it working on
Windows
Evaluation of commands on TargetsBelowDirectory patterns
(e.g. //foo/...) matching packages that fail to load now report
more
detailed error messages in keep_going mode.
Allow to have several inputs and outputs
Repository context's execute() function can print stdout/stderr
while running. To enable, pass quiet=False.
Bazel can now be built with a bundled version of the OpenJDK.
This makes it possible to use Bazel on systems without a JDK, or
where
the installed JDK is too old.
The --jobs flag now defaults to "auto", which causes Bazel to
use a reasonable degree of parallelism based on the local
machine's
capacity.
Bazel benchmark (perf.bazel.build) supports Java and Cpp targets.
no factory methods generated for lambda expressions on android
The Linux sandbox no longer changes the user to 'nobody' by
default, instead the current user is used as is. The old behavior
can be
restored via the --sandbox_fake_username flag.
/tmp and /dev/shm are now writable by default inside the
Linux sandbox.
Bazel can now use the process-wrapper + symlink tree based
sandbox implementation in FreeBSD.
turn on --experimental_incremental_dexing_error_on_missed_jars by
default.
All android_binarys are now signed with both Apk Signature V1 and
V2. See https://source.android.com/security/apksigning/v2.html
for more details.
Windows MSVC wrappers: Not filtering warning messages anymore,
use --copt=-w and --host_copt=-w to suppress them.
A downloader bug was fixed that prevented RFC 7233 Range
connection resumes from working with certain HTTP servers
Introduces experimental android_device rule for configuring and
launching Android emulators.
For boolean flags, setting them to false using --no_<flag_name>
is deprecated. Use --no<flag_name> without the underscore, or
--<flag_name>=false instead.
Add --experimental_android_compress_java_resources flag to store
java
resources as compressed inside the APK.
Removed --experimental_use_jack_for_dexing and libname.jack
output of
android_library.
blaze canonicalize-flags now takes a --show_warnings flag
Changing --invocation_policy will no longer force a server
restart.
Bazel now supports Android NDK14.
android_binary multidex should now work without additional flags.
Use action_config in crosstool for static library archiving,
remove ar_flag.
new option for bazel canonicalize-flags, --canonicalize_policy
Use action_config in crosstool for static library archiving,
remove ar_flag.
android_library exports_manifest now defaults to True.
Fix select condition intersections.
Adds a --override_repository option that takes a repository
name and path. This forces Bazel to use the directory at that path
for the repository. Example usage:
--override_repository=foo=/home/user/gitroot/foo.
fix idempotency issue with desugaring lambdas in interface
initializers for android
--experimental_android_use_singlejar_for_multidex is now a no-op
and will eventually be removed.
Every local_repository now requires a WORKSPACE file.
Remove jack and jill attributes of the android_sdk rule.
Add Skylark stubs needed to remove sysroot from CppConfiguration.
Desugar try-with-resources so that this language feature is
available
to deveces with API level under 19.
The flag --worker_max_retries was removed. The
WorkerSpawnStrategy no longer retries execution of failed Spawns,
the reason being that this just masks compiler bugs and isn't
done for any other execution strategy either.
Bazel will no longer gracefully restart workers that crashed /
quit, instead this triggers a build failure.
All java resources are now compressed in android_binary APKs by
default.
All java resources are now compressed in android_binary APKs by
default.
android_ndk_repository now creates a cc_library
(@androidndk//:cpufeatures) for the cpufeatures library that is
bundled in the Android NDK. See
https://developer.android.com/ndk/guides/cpu-features.html for
more details.
'output_groups' and 'instrumented_files' cannot be specified in
DefaultInfo.
You can increase the CPU reservation for tests by adding a
"cpu:" (e.g. "cpu:4" for four cores) tag to their rule in a
BUILD file. This can be used if tests would otherwise overwhelm
your system if there's too much parallelism.
Deprecate use_singlejar_for_proguard_libraryjars and force
behavior to always on.

Release 0.4.5 (2017-03-16)

2017-03-16T12:18:28Z

Baseline: 2e689c2

Cherry picks:

a28b540:
Fix Cpp action caching
6d1d424:
Fix paths of binaries in .deb packages.
0785cbb:
Update to guava 21.0 and Error Prone version 2.0.18-20160224
3049051:
Update to latest javac and Error Prone
867d16e:
Allow ' ', '(', ')' and '$' in labels
7b295d3:
Pass through -sourcepath to the JavaBuilder
14e4755:
PathFragment comparisons are now platform-aware
ed77952:
Flag to import external repositories in python import path
81ae08b:
Suppress error for non-exhaustive switches
e8d1177:
Correctly returns null if an environment variables is missing
869d52f:
Fix NPE in Android{S,N}dkRepositoryFunction.
d72bc57:
Select the good guava jars for JDK7 build
92ecbae:
Windows: Assist JNI builds with a target for jni_md.h.
3695880:
Add java_common.create_provider to allow creating a
java_common.provider
8c00f39:
Improve handling of unknown NDK revisions in
android_ndk_repository.
b6ea0d3:
Add the appropriate cxx_builtin_include_directory entries for
clang to the Android NDK crosstool created by
android_ndk_repository.

Incompatible changes:

Depsets (former sets) are converted to strings as "depset(...)"
instead of
"set(...)".
Using --symlink_prefix is now applied to the output
symlink (e.g. bazel-out) and the exec root symlink (e.g.
bazel-workspace).
Bazel now uses the test's PATH for commands specified as
--run_under; this can affect users who explicitly set PATH to
a more
restrictive value than the default, which is to forward the
local PATH
It's not allowed anymore to compare objects of different types
(i.e. a string to an integer) and objects for which comparison
rules are not
defined (i.e. a dict to another dict) using order operators.

New features:

environ parameter to the repository_rule function let
defines a list of environment variables for which a change of
value
will trigger a repository refetching.

Important changes:

android_ndk_repository now supports Android NDK R13.
Android resource shrinking is now available for android_binary
rules. To enable, set the attribute 'shrink_resources = 1'. See
https://bazel.build/versions/master/docs/be/android.html#android_b
inary.shrink_resources.
resolve_command/action's input_manifest return/parameter is now
list
For increased compatibility with environments where UTS
namespaces are not available, the Linux sandbox no longer hides
the hostname of the local machine by default. Use
--sandbox_fake_hostname to re-enable this feature.
proto_library: alias libraries produce empty files for descriptor
sets.
Adds pkg_rpm rule for generating RPM packages.
Allow CROSSTOOL files to have linker flags specific to static
shared libraries.
Make it mandatory for Java test suites in bazel codebase, to
contain at least one test.
Support for Java 8 lambdas, method references, type annotations
and repeated annotations in Android builds with
--experimental_desugar_for_android.
Removed .xcodeproj automatic output from objc rules. It can still
be generated by requesting it explicitly on the command line.
Flips --explicit_jre_deps flag on by default.
Activate the "dbg", "fastbuild", and "opt" features in the objc
CROSSTOOL.
Remove support for configuring JDKs with filegroups; use
java_runtime and java_runtime_suite instead
android_ndk_repository api_level attribute is now optional. If not
specified, the highest api level in the ndk/platforms directory
is used.