bazel

问题 I'm new to Bazel and learning its build work, currently I am trying to do with bazel build from a Maven project, please advise me how to make it working, thanks. Here is the WORKSPACE file I am trying to define: maven_jar( name = "junit", artifact = "junit:junit:3.8.1", ) maven_jar( name = "log4j1", artifact = "org.apache.logging.log4j:log4j-core:2.6.2", ) maven_jar( name = "log4j2", artifact = "org.apache.logging.log4j:log4j-api:2.6.2", ) ..... Here is the BUILD file I am trying to define:

问题 I'm trying to use bazel to build my JNI library (written in C). No luck after about 4 hours: "jni.h file not found". How can I put the JDK include directories on the search path? Tried using absolute paths but bazel rejects those. Trying to use a new_local_repository for the JDK but cannot see how to make it work. This is bazel 0.5.3 on MacOS 10.12.6, Java 1.8 回答1: Can you depend on @local_jdk//:jni_header or some other magic labels from https://github.com/bazelbuild/bazel/blob

问题 I'm trying to determine how the gen_io_ops module is generated by bazel when building TensorFlow from source. In tensorflow/python/ops/io_ops.py, there is this piece of code: from tensorflow.python.ops.gen_io_ops [...] # used in the TextLineReader initialization rr = gen_io_ops._text_line_reader_v2(...) referring to the bazel-genfiles/tensorflow/python/ops/gen_io_ops.py module (and generated by bazel when building TensorFlow). The _text_line_reader_v2 is a wrapper of the TextLineReaderV2

问题 I have built a lib.so using make rule in bazel. How do I link this external lib.so to a regular cc_library rule. I tried adding it in deps, but the guide suggests that deps can have cc_library or objc_library targets. Also, do I need to pass any specific linking options, and how can I read more about them? 回答1: In the BUILD file, create a cc_library target that imports the built lib.so for other cc_library targets to depend on: cc_library( name = "lib", srcs = ["lib.so"], linkopts = ["...", "

问题 I have a mutli-module project which I'm migrating from Maven to Bazel. During this migration people will need to be able to work on both build systems. After an mvn clean install Maven copies some of the BUILD files into the target folder. When I later try to run bazel build //... it thinks the BUILD files under the various target folders are valid packages and fails due to some mismatch. I've seen deleted_packages but AFAICT it requires I specify the list of folders to "delete" while I can't

问题 I'm new to bazel and have this demo project: (1)mkdir demo-project (2)cd demo-project (3)mkdir -p src/main/java/com/demo (4)vi src/main/java/com/demo/DemoRunner.java package com.demo; public class DemoRunner { public static void main(String args[]) { Hello.hello(); } } (5)vi src/main/java/com/demo/Hello.java package com.demo; public class Hello { public static void hello() { System.out.println("hello,world"); } } (6)vi ~/demo-project/BUILD java_binary( name = "hello", srcs = glob(["**/*.java"

问题 The bazel build flag --workspace_status_command supports calling a script to retrieve e.g. repository metadata, this is also known as build stamping and available in rules like java_binary . I'd like to create a custom rule using this metadata. I want to use this for a common support function. It should receive the git version and some other attributes and create a version.go output file usable as a dependency. So I started a journey looking at rules in various bazel repositories. Rules like

问题 I'm attempting to use Bazel's Protocol Buffer Rules to compile (generate) Python language bindings and any dependencies. The layout of my project is simple, with a single directory, proto , containing the .proto file and BUILD file. WORKSPACE BUILD.six |-- proto | |-- example.proto | |-- BUILD My WORKSPACE file: workspace(name = "com_example") http_archive( name = "com_google_protobuf", strip_prefix = "protobuf-3.4.1", urls = ["https://github.com/google/protobuf/archive/v3.4.1.zip"], ) new

问题 $ python gencpp.py This command generates a cpp file foo.cpp in the working directory. I'd like to run this command in bazel before building to be able to include foo.cpp in cc_binary 's srcs attribute. What I've tried: genrule( name = 'foo', outs = ['foo.cpp'], cmd = 'python gencpp.py', ) cc_library( srcs = ['foo.cpp'], # tried also with :foo ... ) declared output 'external/somelib/foo.cpp' was not created by genrule. This is probably because the genrule actually didn't create this output,