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UebelAndreUebelAndre
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Added rust example (#1354)
I think having this example here vs in `rules_rust` will be more visible for consumers of `rules_foreign_cc`. `rules_rust` should otherwise try to demonstrate simple examples or uses of `rules_cc` and leave the complexity of foreign_cc interactions to this repo.
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‎.bazelci/config.yaml

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@@ -167,6 +167,7 @@ tasks:
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- "-//cmake_hello_world_lib/static:libhello_example"
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- "-//cmake_hello_world_lib/static:test_hello"
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- "-//cmake_with_data/..."
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- "-//rust/..."
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batch_commands:
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- powershell -noexit "& "".\..\.bazelci\windows-update-certs.ps1"""
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build_targets: *windows_targets
@@ -247,7 +248,10 @@ tasks:
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platform: ubuntu1804
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working_directory: examples
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min_supported_targets: &min_supported_targets
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- "--"
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- "//..."
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# The min supported version of rules_rust is `>=7`
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- "-//rust/..."
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build_targets: *min_supported_targets
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test_targets: *min_supported_targets
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‎examples/MODULE.bazel

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@@ -13,6 +13,7 @@ use_repo(
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)
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bazel_dep(name = "platforms", version = "0.0.6")
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bazel_dep(name = "rules_rust", version = "0.56.0")
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bazel_dep(name = "rules_swift", version = "1.6.0", repo_name = "build_bazel_rules_swift")
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bazel_dep(name = "rules_apple", version = "3.4.0", repo_name = "build_bazel_rules_apple")
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bazel_dep(name = "apple_support", version = "1.12.0", repo_name = "build_bazel_apple_support")
@@ -36,6 +37,35 @@ pip.parse(
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)
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use_repo(pip, "pip")
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# https://bazelbuild.github.io/rules_rust/crate_universe_bzlmod.html
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rust_example = use_extension("@rules_rust//crate_universe:extensions.bzl", "crate")
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inject_repo(rust_example, "rules_foreign_cc")
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rust_example.annotation(
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# Setting build_script_data makes the files available on disk when the rule runs.
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build_script_data = ["@rules_foreign_cc//toolchains:current_cmake_toolchain"],
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build_script_env = {
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# The toolchain supplies a value of $(CMAKE) which is an execroot-relative path, so we need to prefix it with `$${pwd}/`
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# because build scripts don't typically run in the execroot unlike most bazel rules, for improved compatibility with Cargo.
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"CMAKE": "$${pwd}/$(CMAKE)",
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},
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# Setting build_script_toolchains makes makefile variable substitution work so that we can reference $(CNAME) in attributes.
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build_script_toolchains = ["@rules_foreign_cc//toolchains:current_cmake_toolchain"],
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crate = "libz-ng-sys",
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)
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rust_example.spec(
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package = "libz-ng-sys",
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version = "=1.1.20",
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)
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rust_example.from_specs(
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name = "rust_example",
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)
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use_repo(
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rust_example,
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"rust_example",
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)
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# bazel_dep(name = "rules_android", version = "0.1.1")
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# bazel_dep(name = "rules_jvm_external", version = "5.1")
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#

‎examples/WORKSPACE.bazel

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@@ -124,3 +124,57 @@ load(
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)
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apple_support_dependencies()
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maybe(
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http_archive,
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name = "rules_rust",
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integrity = "sha256-8TBqrAsli3kN8BrZq8arsN8LZUFsdLTvJ/Sqsph4CmQ=",
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urls = ["https://github.com/bazelbuild/rules_rust/releases/download/0.56.0/rules_rust-0.56.0.tar.gz"],
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)
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load("@rules_rust//rust:repositories.bzl", "rules_rust_dependencies", "rust_register_toolchains")
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rules_rust_dependencies()
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rust_register_toolchains()
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load("@rules_rust//crate_universe:repositories.bzl", "crate_universe_dependencies")
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crate_universe_dependencies()
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load("@rules_rust//crate_universe:defs.bzl", "crate", "crates_repository", "splicing_config")
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crates_repository(
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name = "rust_example",
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annotations = {
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# zlib-ng-sys's build script invokes cmake, so we need to make cmake available.
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# Fortunately, rules_foreign_cc has a cmake toolchain we can use.
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"libz-ng-sys": [crate.annotation(
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# Setting build_script_data makes the files available on disk when the rule runs.
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build_script_data = ["@rules_foreign_cc//toolchains:current_cmake_toolchain"],
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build_script_env = {
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# The toolchain supplies a value of $(CMAKE) which is an execroot-relative path, so we need to prefix it with $${pwd}/ because build scripts don't typically run in the execroot unlike most bazel rules, for improved compatibility with Cargo.
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"CMAKE": "$${pwd}/$(CMAKE)",
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},
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# Setting build_script_toolchains makes makefile variable substitution work so that we can reference $(CNAME) in attributes.
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build_script_toolchains = ["@rules_foreign_cc//toolchains:current_cmake_toolchain"],
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)],
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},
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cargo_lockfile = "//rust:Cargo.Bazel.lock",
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lockfile = "//rust:cargo-bazel-lock.json",
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packages = {
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"libz-ng-sys": crate.spec(
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version = "=1.1.20",
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),
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},
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splicing_config = splicing_config(
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resolver_version = "2",
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),
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)
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load(
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"@rust_example//:defs.bzl",
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rust_example_crate_repositories = "crate_repositories",
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)
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rust_example_crate_repositories()

‎examples/rust/BUILD.bazel

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load("@bazel_skylib//rules:build_test.bzl", "build_test")
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build_test(
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name = "build_test",
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targets = [
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"@rust_example//:libz-ng-sys",
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],
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)

‎examples/rust/Cargo.Bazel.lock

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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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version = 4
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[[package]]
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name = "cc"
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version = "1.0.95"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d32a725bc159af97c3e629873bb9f88fb8cf8a4867175f76dc987815ea07c83b"
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[[package]]
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name = "cmake"
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version = "0.1.50"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a31c789563b815f77f4250caee12365734369f942439b7defd71e18a48197130"
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dependencies = [
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"cc",
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]
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[[package]]
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name = "direct-cargo-bazel-deps"
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version = "0.0.1"
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dependencies = [
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"libz-ng-sys",
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]
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[[package]]
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name = "libc"
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version = "0.2.154"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ae743338b92ff9146ce83992f766a31066a91a8c84a45e0e9f21e7cf6de6d346"
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[[package]]
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name = "libz-ng-sys"
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version = "1.1.20"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8f0f7295a34685977acb2e8cc8b08ee4a8dffd6cf278eeccddbe1ed55ba815d5"
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dependencies = [
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"cmake",
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"libc",
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]

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