Start adding CICD config

.github/workflows/bazel_example.yaml

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+name: CI
+on:
+ workflow_dispatch:
+jobs:
+ ci_bazel:
+   runs-on: ubuntu-24.04
+   steps:
+     - uses: actions/checkout@v4
+     - uses: actions/cache@v4
+       with:
+         path: ~/.cache/bazel
+         key: ${{ runner.os }}-bazel-${{ hashFiles('.bazelversion', '.bazelrc', 'MODULE.bazel') }}
+         restore-keys: |
+           ${{ runner.os }}-bazel-
+
+     - name: update packages
+       run: sudo apt-get update
+
+     - name: install other system dependencies
+       run: sudo apt-get -y install pkg-config libssl-dev default-jre pkgconf
+
+     - name: Bazel Build
+       run: bazelisk build --config=ci //...
+
+     - name: Upload bazel-explain build artifact
+       uses: actions/upload-artifact@v4
+       with:
+          name: bazel-explain-build-run
+          path: bazel-explain.log
+
+     - name: Bazel Test
+       run: bazelisk test //... --config=ci --test_output=all --test_arg=--nocapture
+
+     - name: Upload bazel-explain test artifact
+       uses: actions/upload-artifact@v4
+       with:
+          name: bazel-explain-test-run
+          path: bazel-explain.log

examples/bazel_build/.bazelrc

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+###########
+# General #
+###########
+
+# A config file containing Bazel settings
+common --enable_bzlmod
+
+# https://github.com/bazelbuild/bazel/pull/20855
+common --noenable_workspace
+
+###########
+# Caching #
+###########
+
+# Use BLAKE3 as digest function (will be the default in Bazel 8)
+startup --digest_function=BLAKE3
+
+# Always have Bazel output why it (re)built something, should make debugging builds easier.
+# This has a small performance penalty. If builds become slow, we might want to try and turn this off.
+common --explain=bazel-explain.log
+common --verbose_explanations
+
+# This adds another folder with a cache specific to this project
+# In case some rust source files are not generated, try commenting this out and building again.
+common --disk_cache=~/.cache/bazel_disk_cache
+build --disk_cache=~/.cache/bazel_disk_cache
+fetch --disk_cache=~/.cache/bazel_disk_cache
+query --disk_cache=~/.cache/bazel_disk_cache
+sync --disk_cache=~/.cache/bazel_disk_cache
+test --disk_cache=~/.cache/bazel_disk_cache
+# Note that this cache will grow without bound currently. You should
+# Periodically run `find "~/.cache/bazel_disk_cache" -type f -atime +30 -delete`
+# https://github.com/bazelbuild/bazel/issues/5139 tracks fixing this issue.
+
+# Compresses remote cache for files larger than 100MB
+# NOTE: disk_cache is a local version of remote cache
+common:workflows --remote_cache_compression
+common:workflows --experimental_remote_cache_compression_threshold=100
+
+#########
+# Build #
+#########
+
+# Don't use legacy toolchain resolution
+common --incompatible_enable_cc_toolchain_resolution
+common --incompatible_enable_proto_toolchain_resolution
+
+# Don't leak PATH and LD_LIBRARY_PATH into the build. 
+build --incompatible_strict_action_env
+
+build --sandbox_default_allow_network=true # re-enabled to allow skia-bindings to download
+build --heap_dump_on_oom
+build --noexperimental_check_output_files
+
+# Add build annotation for clippy and rustfmt by default.
+# build --aspects=@rules_rust//rust:defs.bzl%rustfmt_aspect
+# build --aspects=@rules_rust//rust:defs.bzl%rust_clippy_aspect
+
+build:nightly --@rules_rust//rust/toolchain/channel=nightly
+
+#################
+# Rust-analyzer #
+#################
+
+run:genra @rules_rust//tools/rust_analyzer:gen_rust_project
+
+##############
+# Formatting #
+##############
+
+# Apply formatting to all files
+run:rustfmt @rules_rust//:rustfmt --output_groups=+rustfmt_checks --@rules_rust//:rustfmt.toml=//:rustfmt.toml
+
+# Check whether formatting has been applied correctly
+build:rustfmt --output_groups=+rustfmt_checks --@rules_rust//:rustfmt.toml=//:rustfmt.toml
+
+###########
+# Linting #
+###########
+
+# Causes rustc to emit .rmeta files and use them for rlib -> rlib dependencies
+# See https://internals.rust-lang.org/t/evaluating-pipelined-rustc-compilation/10199
+build:check --@rules_rust//rust/settings:pipelined_compilation=True
+
+# Ignores all outputs other than `.rmeta`, requires pipelined_compilation to be enabled!
+build:check --output_groups=build_metadata
+
+# Linting with Clippy (stricter than build without options)
+# This does not work with the option `pipelined_compilation` on all modules
+build:clippy --output_groups=+clippy_checks
+
+# Stricter linting on top of the default checks by Clippy
+build:pedantic --config=clippy --@rules_rust//:clippy_flags="-Wclippy::pedantic,-Dclippy::perf,-Dclippy::correctness,-Wclippy::suspicious,-Dclippy::complexity,-Dclippy::style,-Aclippy::missing_errors_doc,-Aclippy::missing_panics_doc,-Aclippy::semicolon_if_nothing_returned" --@rules_rust//:clippy.toml=//:clippy.toml 
+
+# Historical shortcut used in an old version of the script in `./rust_analyzer`
+build:lint_file --@rules_rust//:error_format=json --config=clippy --compile_one_dependency
+
+##########
+# Checks #
+##########
+
+# Combination of checks by Clippy and Rustfmt 
+build:lint --config=rustfmt --config=clippy
+
+#############
+# Debugging #
+#############  
+
+build:debug -c dbg
+
+# Expand macros into a file `expanded.rs`
+build:unpretty --aspects=@rules_rust//rust:defs.bzl%rust_unpretty_aspect
+build:unpretty --output_groups=+rust_unpretty
+build:unpretty --config=nightly
+
+###########
+# Testing #
+###########
+
+test --build_tests_only
+test:verbose --test_output=all --test_arg=--nocapture
+
+#########
+# CI/CD #
+#########
+
+common:ci --disk_cache=
+common:ci --color=yes
+common:ci --build_metadata=ROLE=CI
+build:ci --config=lint
+
+# This import should always be last to allow users to override
+# Allow user-side customization
+try-import %workspace%/user.bazelrc
+