Read bazel lib version using bazel CLI instead of hardcoding it.

[agalbachicar]

🎉 New feature

Closes #74

Summary

Executes bazel mod explain to obtain maliput and maliput_malidrive library versions in maliput-sdk/build.rs.

Test it

By executing cargo check / build.

Checklist

• Signed all commits for DCO
• Added tests
• Added example and/or tutorial
• Updated documentation (as needed)
• Updated migration guide (as needed)
• Consider updating Python bindings (if it affects the public API)

Note to maintainers: Remember to use Squash-Merge and edit the commit message to match the pull request summary while retaining Signed-off-by messages.

[francocipollone]

LGTM. Check clippy. CI is also failing weirdly.

[francocipollone]

One interesting thing happened: CC @agalbachicar
Remember that the print is mainly used at build.rs for indicating to cargo some stuff (links,rustc envs, etc)

You were using print macro for printing information (with no new_line) so if we check the output of the maliput-sdk build:

cargo:rerun-if-changed=src/lib.rs
cargo:rerun-if-changed=BUILD.bazel
cargo:rerun-if-changed=MODULE.bazel
Detected maliput version: <1.2.0>Detected maliput_malidrive version: <0.2.1>cargo:CXXBRIDGE_DIR0=/workspaces/maliput-rs/target/debug/build/maliput-sdk-bdf1a05400489123/out/bazel_output_base/bazel-bin/external/maliput~1.2.0/_virtual_includes/geometry_base
cargo:CXXBRIDGE_DIR1=/workspaces/maliput-rs/target/debug/build/maliput-sdk-bdf1a05400489123/out/bazel_output_base/bazel-bin/external/maliput~1.2.0/_virtual_includes/api
cargo:CXXBRIDGE_DIR2=/workspaces/maliput-rs/target/debug/build/maliput-sdk-bdf1a05400489123/out/bazel_output_base/bazel-bin/external/maliput~1.2.0/_virtual_includes/math
cargo:CXXBRIDGE_DIR3=/workspaces/maliput-rs/target/debug/build/maliput-sdk-bdf1a05400489123/out/bazel_output_base/bazel-bin/external/maliput~1.2.0/_virtual_includes/utility
cargo:CXXBRIDGE_DIR4=/workspaces/maliput-rs/target/debug/build/maliput-sdk-bdf1a05400489123/out/bazel_output_base/bazel-bin/external/maliput~1.2.0/_virtual_includes/drake
cargo:CXXBRIDGE_DIR5=/workspaces/maliput-rs/target/debug/build/maliput-sdk-bdf1a05400489123/out/bazel_output_base/bazel-bin/external/maliput~1.2.0/_virtual_includes/common
cargo:CXXBRIDGE_DIR6=/workspaces/maliput-rs/target/debug/build/maliput-sdk-bdf1a05400489123/out/bazel_output_base/bazel-bin/external/maliput~1.2.0/_virtual_includes/base
cargo:CXXBRIDGE_DIR7=/workspaces/maliput-rs/target/debug/build/maliput-sdk-bdf1a05400489123/out/bazel_output_base/bazel-bin/external/maliput~1.2.0/_virtual_includes/drake_private_systems
cargo:CXXBRIDGE_DIR8=/workspaces/maliput-rs/target/debug/build/maliput-sdk-bdf1a05400489123/out/bazel_output_base/bazel-bin/external/maliput~1.2.0/_virtual_includes/plugin
cargo:CXXBRIDGE_DIR9=/workspaces/maliput-rs/target/debug/build/maliput-sdk-bdf1a05400489123/out/bazel_output_base/bazel-bin/external/maliput~1.2.0/_virtual_includes/drake_private_common
cargo:rustc-env=MALIPUT_BIN_PATH=/workspaces/maliput-rs/target/debug/build/maliput-sdk-bdf1a05400489123/out/bazel_output_base/bazel-bin/external/maliput~1.2.0
cargo:rustc-env=MALIPUT_MALIDRIVE_BIN_PATH=/workspaces/maliput-rs/target/debug/build/maliput-sdk-bdf1a05400489123/out/bazel_output_base/bazel-bin/external/maliput_malidrive~0.2.1
cargo:rustc-env=MALIPUT_MALIDRIVE_PLUGIN_PATH=/workspaces/maliput-rs/target/debug/build/maliput-sdk-bdf1a05400489123/out/bazel_output_base/bazel-bin/external/maliput_malidrive~0.2.1/maliput_plugins
cargo:rustc-env=MALIPUT_MALIDRIVE_RESOURCE_PATH=/workspaces/maliput-rs/target/debug/build/maliput-sdk-bdf1a05400489123/out/bazel_output_base/bazel-bin/libmaliput_sdk.so.runfiles/maliput_malidrive~0.2.1/resources
cargo:root=/workspaces/maliput-rs/target/debug/build/maliput-sdk-bdf1a05400489123/out
cargo:maliput_bin_path=/workspaces/maliput-rs/target/debug/build/maliput-sdk-bdf1a05400489123/out/bazel_output_base/bazel-bin/external/maliput~1.2.0
cargo:maliput_malidrive_bin_path=/workspaces/maliput-rs/target/debug/build/maliput-sdk-bdf1a05400489123/out/bazel_output_base/bazel-bin/external/maliput_malidrive~0.2.1
cargo:maliput_malidrive_plugin_path=/workspaces/maliput-rs/target/debug/build/maliput-sdk-bdf1a05400489123/out/bazel_output_base/bazel-bin/external/maliput_malidrive~0.2.1/maliput_plugins

You see in the 4th line that the cargo:CXXBRIDGE_DIR0 command isn't parsed correctly and then the cxx configuration go bananas.

The bottom line is: Avodining regular prints in build.rs files might be the best.

[francocipollone]

LGTM!

[francocipollone]

Extra comment: @agalbachicar
You can execute ./tools/reformat_code.sh script for making clippy and fmt happy before git commit (+presubmit)

[agalbachicar]

Thanks @francocipollone !