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Rules WASM Component
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feat: initial Bazel rules for WebAssembly Component Model
Establish the foundation for modern Bazel rules supporting WebAssembly Component Model development with bzlmod (MODULE.bazel) for Bazel 7.0+. - Add MODULE.bazel with rules_rust and bazel_skylib dependencies - Configure WASM target triples (wasm32-wasip2, wasm32-wasip1) - Set up project structure with Apache 2.0 license - Add comprehensive README with features and quick start guide - Configure .bazelrc with modern Bazel settings - Include .gitignore for Bazel outputs and temporary files This provides a clean, modern alternative to shell script-based build systems with better caching, parallelization, and developer experience.
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‎.bazelrc‎

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# Bazel configuration for rules_wasm_component
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# Enable modern features
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common --enable_bzlmod
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common --experimental_google_legacy_api
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# Build settings
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build --incompatible_enable_cc_toolchain_resolution
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build --enable_platform_specific_config
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# Test settings
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test --test_output=errors
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test --test_summary=detailed
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# Platform-specific settings
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build:linux --copt=-fPIC
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build:macos --copt=-fPIC
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# WebAssembly specific settings
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build:wasm --platforms=@rules_rust//rust/platform:wasm32-unknown-unknown
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build:wasm --@rules_rust//:no_std
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# WASI Preview 2 settings
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build:wasi --platforms=@rules_rust//rust/platform:wasm32-wasi
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# Remote cache (if using remote execution)
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# build --remote_cache=...
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# Performance
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build --jobs=auto
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build --local_ram_resources=HOST_RAM*.8
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build --local_cpu_resources=HOST_CPUS*.8

‎.gitignore‎

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# Bazel outputs
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bazel-*
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/bazel-*
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# IDE files
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.vscode/
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.idea/
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*.swp
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*.swo
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*~
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# OS files
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.DS_Store
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Thumbs.db
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# Test outputs
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test.log
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test.xml
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# Temporary files
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*.tmp
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*.temp

‎BUILD.bazel‎

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"""Root BUILD file for rules_wasm_component"""
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load("@bazel_skylib//:bzl_library.bzl", "bzl_library")
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load("@buildifier_prebuilt//:rules.bzl", "buildifier")
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package(default_visibility = ["//visibility:public"])
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# Export all rule files
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exports_files([
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"LICENSE",
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"README.md",
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])
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# Buildifier for formatting
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buildifier(
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name = "buildifier",
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lint_mode = "warn",
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mode = "fix",
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diff_command = "diff -u",
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)
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# Documentation generation
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filegroup(
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name = "all_files",
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srcs = glob(["**"]),
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)
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# Version file for stamping
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genrule(
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name = "version",
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outs = ["version.txt"],
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cmd = "echo '0.1.0' > $@",
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visibility = ["//visibility:public"],
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)

‎LICENSE‎

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Apache License
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‎MODULE.bazel‎

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"""Bazel Module for WebAssembly Component Model Rules"""
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module(
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name = "rules_wasm_component",
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version = "0.1.0",
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compatibility_level = 1,
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)
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# Dependencies for WebAssembly tooling
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bazel_dep(name = "rules_rust", version = "0.46.0")
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bazel_dep(name = "bazel_skylib", version = "1.5.0")
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bazel_dep(name = "platforms", version = "0.0.8")
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# Development dependencies
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bazel_dep(name = "buildifier_prebuilt", version = "6.4.0", dev_dependency = True)
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bazel_dep(name = "stardoc", version = "0.6.2", dev_dependency = True)
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# Rust toolchain setup
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rust = use_extension("@rules_rust//rust:extensions.bzl", "rust")
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rust.toolchain(
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edition = "2021",
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versions = ["1.75.0"],
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extra_target_triples = [
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"wasm32-unknown-unknown",
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"wasm32-wasi",
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"wasm32-wasip1",
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"wasm32-wasip2",
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],
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)
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use_repo(rust, "rust_toolchains")
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# Register toolchains
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register_toolchains("@rust_toolchains//:all")
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# WebAssembly toolchains
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wasm_toolchain = use_extension("//wasm:extensions.bzl", "wasm_toolchain")
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wasm_toolchain.register(
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name = "wasm_tools",
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version = "1.0.60",
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)
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use_repo(wasm_toolchain, "wasm_tools_toolchains")
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register_toolchains("@wasm_tools_toolchains//:all")

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