From cc994660e76ab4aa2158d01249135e14d54b7542 Mon Sep 17 00:00:00 2001 From: Ralf Anton Beier Date: Sun, 18 Jan 2026 08:10:27 +0100 Subject: [PATCH 1/2] feat: use rules_nixpkgs for hermetic Coq toolchain Switch from attempting to download Rocq Platform binaries (which are only available for macOS ARM64 and Windows) to using nixpkgs for hermetic Coq installation. This provides: - Cross-platform support (Linux x86_64/arm64, macOS x86_64/arm64) - Hermetic builds via nix - Multiple Coq versions (8.20, 8.19, 8.18, etc.) Changes: - Add rules_nixpkgs_core dependency to MODULE.bazel - Configure nixpkgs repository with nixos-24.11 stable channel - Create rocq_nix_toolchain.bzl using nixpkgs_package - Update extensions.bzl to use nix-based toolchain - Simplify MODULE.bazel (remove broken OCaml/coq_of_rust extensions) - Fix tool_registry.bzl and rocq_toolchain.bzl syntax errors - Add toolchain_type to rocq/BUILD.bazel - Rewrite README with nix installation instructions BREAKING CHANGE: Users must install nix for the toolchain to work. See README.md for installation instructions. --- MODULE.bazel | 78 ++-- MODULE.bazel.lock | 100 ++---- README.md | 571 ++++++++---------------------- rocq/BUILD.bazel | 5 + rocq/extensions.bzl | 62 ++-- toolchains/rocq_nix_toolchain.bzl | 119 +++++++ toolchains/rocq_toolchain.bzl | 489 ++++++++++++------------- toolchains/tool_registry.bzl | 369 +++++++------------ 8 files changed, 722 insertions(+), 1071 deletions(-) create mode 100644 toolchains/rocq_nix_toolchain.bzl diff --git a/MODULE.bazel b/MODULE.bazel index 0763c37..64de6c3 100644 --- a/MODULE.bazel +++ b/MODULE.bazel @@ -1,7 +1,7 @@ """Bazel Module for Rocq and coq-of-rust Rules -This module provides Bazel rules for Rocq theorem proving and coq-of-rust integration. -Following the patterns established by rules_rust and rules_wasm_component. +This module provides Bazel rules for Rocq/Coq theorem proving. +Uses nixpkgs for hermetic Coq toolchain installation. """ module( @@ -10,64 +10,38 @@ module( compatibility_level = 1, ) -# Core dependencies following rules_rust patterns -bazel_dep(name = "rules_rust", version = "0.68.1") -bazel_dep(name = "rules_cc", version = "0.2.14") +# Core dependencies bazel_dep(name = "bazel_skylib", version = "1.8.2") bazel_dep(name = "platforms", version = "1.0.0") +# Nix integration for hermetic Coq/Rocq toolchain +bazel_dep(name = "rules_nixpkgs_core", version = "0.13.0") + +# Configure nixpkgs repository for Coq/Rocq toolchain +nix_repo = use_extension( + "@rules_nixpkgs_core//extensions:repository.bzl", + "nix_repo", +) +nix_repo.github( + name = "nixpkgs", + org = "NixOS", + repo = "nixpkgs", + # nixos-24.11 stable channel + commit = "d4f247e89f6e10120f911e2e2d2254a050d0f732", + sha256 = "dee2f93be38d1a63ee9b731fa993f0ac2c60c3a62cca32d4cc64c2ed5b8a8e06", +) +use_repo(nix_repo, "nixpkgs") + # Development dependencies bazel_dep(name = "buildifier_prebuilt", version = "6.4.0", dev_dependency = True) -bazel_dep(name = "stardoc", version = "0.7.2", dev_dependency = True) -# Rocq toolchain extension (Bazel 8 symbolic macro pattern) +# Rocq toolchain extension - uses nixpkgs for hermetic Coq rocq = use_extension("//rocq:extensions.bzl", "rocq") rocq.toolchain( - version = "2025.01.0", - strategy = "download", - editions = ["2021"], # Coq/Rocq edition compatibility + version = "8.20", # Coq version from nixpkgs + strategy = "nix", # Hermetic nix-based installation ) use_repo(rocq, "rocq_toolchains") -# Optional OCaml toolchain for QuickChick support -# Only enable this if you need QuickChick or other OCaml-based plugins -ocaml = use_extension("//toolchains:ocaml_extensions.bzl", "ocaml") -ocaml.toolchain( - version = "5.1.1", - strategy = "download", # only hermetic downloads supported -) -use_repo(ocaml, "ocaml_toolchains") - -# coq-of-rust toolchain extension -# Now properly implemented as a buildable toolchain -coq_of_rust = use_extension("//coq_of_rust:extensions.bzl", "coq_of_rust") -coq_of_rust.toolchain( - version = "0.5.0", - strategy = "build", # coq-of-rust must be built from source -) -use_repo(coq_of_rust, "coq_of_rust_toolchains") - -# Register toolchains for target platform resolution -register_toolchains( - "@rocq_toolchains//:rocq_toolchain", - "@coq_of_rust_toolchains//:coq_of_rust_toolchain", -) - -# Rust toolchain setup for coq-of-rust integration -rust = use_extension("@rules_rust//rust:extensions.bzl", "rust") -rust.toolchain( - edition = "2021", - extra_target_triples = [ - "x86_64-unknown-linux-gnu", - "aarch64-unknown-linux-gnu", - "x86_64-apple-darwin", - "aarch64-apple-darwin", - ], - versions = ["1.91.1"], -) -use_repo(rust, "rust_toolchains") - -register_toolchains("@rust_toolchains//:all") - -# Register default C++ toolchains for any C++ dependencies -register_toolchains("@bazel_tools//tools/cpp:all") \ No newline at end of file +# Register Rocq toolchain +register_toolchains("@rocq_toolchains//:all") diff --git a/MODULE.bazel.lock b/MODULE.bazel.lock index 1213a4e..9c1177b 100644 --- a/MODULE.bazel.lock +++ b/MODULE.bazel.lock @@ -1,5 +1,5 @@ { - "lockFileVersion": 24, + "lockFileVersion": 16, "registryFileHashes": { "https://bcr.bazel.build/bazel_registry.json": "8a28e4aff06ee60aed2a8c281907fb8bcbf3b753c91fb5a5c57da3215d5b3497", "https://bcr.bazel.build/modules/abseil-cpp/20210324.2/MODULE.bazel": "7cd0312e064fde87c8d1cd79ba06c876bd23630c83466e9500321be55c96ace2", @@ -10,20 +10,14 @@ "https://bcr.bazel.build/modules/abseil-cpp/20230802.1/MODULE.bazel": "fa92e2eb41a04df73cdabeec37107316f7e5272650f81d6cc096418fe647b915", "https://bcr.bazel.build/modules/abseil-cpp/20240116.1/MODULE.bazel": "37bcdb4440fbb61df6a1c296ae01b327f19e9bb521f9b8e26ec854b6f97309ed", "https://bcr.bazel.build/modules/abseil-cpp/20240116.1/source.json": "9be551b8d4e3ef76875c0d744b5d6a504a27e3ae67bc6b28f46415fd2d2957da", - "https://bcr.bazel.build/modules/apple_support/1.23.1/MODULE.bazel": "53763fed456a968cf919b3240427cf3a9d5481ec5466abc9d5dc51bc70087442", - "https://bcr.bazel.build/modules/apple_support/1.24.1/MODULE.bazel": "f46e8ddad60aef170ee92b2f3d00ef66c147ceafea68b6877cb45bd91737f5f8", - "https://bcr.bazel.build/modules/apple_support/1.24.1/source.json": "cf725267cbacc5f028ef13bb77e7f2c2e0066923a4dab1025e4a0511b1ed258a", "https://bcr.bazel.build/modules/bazel_features/1.1.1/MODULE.bazel": "27b8c79ef57efe08efccbd9dd6ef70d61b4798320b8d3c134fd571f78963dbcd", "https://bcr.bazel.build/modules/bazel_features/1.11.0/MODULE.bazel": "f9382337dd5a474c3b7d334c2f83e50b6eaedc284253334cf823044a26de03e8", "https://bcr.bazel.build/modules/bazel_features/1.15.0/MODULE.bazel": "d38ff6e517149dc509406aca0db3ad1efdd890a85e049585b7234d04238e2a4d", "https://bcr.bazel.build/modules/bazel_features/1.17.0/MODULE.bazel": "039de32d21b816b47bd42c778e0454217e9c9caac4a3cf8e15c7231ee3ddee4d", "https://bcr.bazel.build/modules/bazel_features/1.18.0/MODULE.bazel": "1be0ae2557ab3a72a57aeb31b29be347bcdc5d2b1eb1e70f39e3851a7e97041a", "https://bcr.bazel.build/modules/bazel_features/1.19.0/MODULE.bazel": "59adcdf28230d220f0067b1f435b8537dd033bfff8db21335ef9217919c7fb58", - "https://bcr.bazel.build/modules/bazel_features/1.27.0/MODULE.bazel": "621eeee06c4458a9121d1f104efb80f39d34deff4984e778359c60eaf1a8cb65", - "https://bcr.bazel.build/modules/bazel_features/1.28.0/MODULE.bazel": "4b4200e6cbf8fa335b2c3f43e1d6ef3e240319c33d43d60cc0fbd4b87ece299d", - "https://bcr.bazel.build/modules/bazel_features/1.30.0/MODULE.bazel": "a14b62d05969a293b80257e72e597c2da7f717e1e69fa8b339703ed6731bec87", - "https://bcr.bazel.build/modules/bazel_features/1.32.0/MODULE.bazel": "095d67022a58cb20f7e20e1aefecfa65257a222c18a938e2914fd257b5f1ccdc", - "https://bcr.bazel.build/modules/bazel_features/1.32.0/source.json": "2546c766986a6541f0bacd3e8542a1f621e2b14a80ea9e88c6f89f7eedf64ae1", + "https://bcr.bazel.build/modules/bazel_features/1.21.0/MODULE.bazel": "675642261665d8eea09989aa3b8afb5c37627f1be178382c320d1b46afba5e3b", + "https://bcr.bazel.build/modules/bazel_features/1.21.0/source.json": "3e8379efaaef53ce35b7b8ba419df829315a880cb0a030e5bb45c96d6d5ecb5f", "https://bcr.bazel.build/modules/bazel_features/1.4.1/MODULE.bazel": "e45b6bb2350aff3e442ae1111c555e27eac1d915e77775f6fdc4b351b758b5d7", "https://bcr.bazel.build/modules/bazel_features/1.9.1/MODULE.bazel": "8f679097876a9b609ad1f60249c49d68bfab783dd9be012faf9d82547b14815a", "https://bcr.bazel.build/modules/bazel_skylib/1.0.3/MODULE.bazel": "bcb0fd896384802d1ad283b4e4eb4d718eebd8cb820b0a2c3a347fb971afd9d8", @@ -52,20 +46,17 @@ "https://bcr.bazel.build/modules/jsoncpp/1.9.5/source.json": "4108ee5085dd2885a341c7fab149429db457b3169b86eb081fa245eadf69169d", "https://bcr.bazel.build/modules/libpfm/4.11.0/MODULE.bazel": "45061ff025b301940f1e30d2c16bea596c25b176c8b6b3087e92615adbd52902", "https://bcr.bazel.build/modules/platforms/0.0.10/MODULE.bazel": "8cb8efaf200bdeb2150d93e162c40f388529a25852b332cec879373771e48ed5", - "https://bcr.bazel.build/modules/platforms/0.0.11/MODULE.bazel": "0daefc49732e227caa8bfa834d65dc52e8cc18a2faf80df25e8caea151a9413f", "https://bcr.bazel.build/modules/platforms/0.0.4/MODULE.bazel": "9b328e31ee156f53f3c416a64f8491f7eb731742655a47c9eec4703a71644aee", "https://bcr.bazel.build/modules/platforms/0.0.5/MODULE.bazel": "5733b54ea419d5eaf7997054bb55f6a1d0b5ff8aedf0176fef9eea44f3acda37", "https://bcr.bazel.build/modules/platforms/0.0.6/MODULE.bazel": "ad6eeef431dc52aefd2d77ed20a4b353f8ebf0f4ecdd26a807d2da5aa8cd0615", "https://bcr.bazel.build/modules/platforms/0.0.7/MODULE.bazel": "72fd4a0ede9ee5c021f6a8dd92b503e089f46c227ba2813ff183b71616034814", "https://bcr.bazel.build/modules/platforms/0.0.8/MODULE.bazel": "9f142c03e348f6d263719f5074b21ef3adf0b139ee4c5133e2aa35664da9eb2d", - "https://bcr.bazel.build/modules/platforms/0.0.9/MODULE.bazel": "4a87a60c927b56ddd67db50c89acaa62f4ce2a1d2149ccb63ffd871d5ce29ebc", "https://bcr.bazel.build/modules/platforms/1.0.0/MODULE.bazel": "f05feb42b48f1b3c225e4ccf351f367be0371411a803198ec34a389fb22aa580", "https://bcr.bazel.build/modules/platforms/1.0.0/source.json": "f4ff1fd412e0246fd38c82328eb209130ead81d62dcd5a9e40910f867f733d96", "https://bcr.bazel.build/modules/protobuf/21.7/MODULE.bazel": "a5a29bb89544f9b97edce05642fac225a808b5b7be74038ea3640fae2f8e66a7", "https://bcr.bazel.build/modules/protobuf/27.0/MODULE.bazel": "7873b60be88844a0a1d8f80b9d5d20cfbd8495a689b8763e76c6372998d3f64c", "https://bcr.bazel.build/modules/protobuf/27.1/MODULE.bazel": "703a7b614728bb06647f965264967a8ef1c39e09e8f167b3ca0bb1fd80449c0d", "https://bcr.bazel.build/modules/protobuf/29.0-rc2/MODULE.bazel": "6241d35983510143049943fc0d57937937122baf1b287862f9dc8590fc4c37df", - "https://bcr.bazel.build/modules/protobuf/29.0-rc3/MODULE.bazel": "33c2dfa286578573afc55a7acaea3cada4122b9631007c594bf0729f41c8de92", "https://bcr.bazel.build/modules/protobuf/29.0/MODULE.bazel": "319dc8bf4c679ff87e71b1ccfb5a6e90a6dbc4693501d471f48662ac46d04e4e", "https://bcr.bazel.build/modules/protobuf/29.0/source.json": "b857f93c796750eef95f0d61ee378f3420d00ee1dd38627b27193aa482f4f981", "https://bcr.bazel.build/modules/protobuf/3.19.0/MODULE.bazel": "6b5fbb433f760a99a22b18b6850ed5784ef0e9928a72668b66e4d7ccd47db9b0", @@ -81,15 +72,11 @@ "https://bcr.bazel.build/modules/rules_cc/0.0.14/MODULE.bazel": "5e343a3aac88b8d7af3b1b6d2093b55c347b8eefc2e7d1442f7a02dc8fea48ac", "https://bcr.bazel.build/modules/rules_cc/0.0.15/MODULE.bazel": "6704c35f7b4a72502ee81f61bf88706b54f06b3cbe5558ac17e2e14666cd5dcc", "https://bcr.bazel.build/modules/rules_cc/0.0.16/MODULE.bazel": "7661303b8fc1b4d7f532e54e9d6565771fea666fbdf839e0a86affcd02defe87", + "https://bcr.bazel.build/modules/rules_cc/0.0.16/source.json": "227e83737046aa4f50015da48e98e0d8ab42fd0ec74d8d653b6cc9f9a357f200", "https://bcr.bazel.build/modules/rules_cc/0.0.2/MODULE.bazel": "6915987c90970493ab97393024c156ea8fb9f3bea953b2f3ec05c34f19b5695c", "https://bcr.bazel.build/modules/rules_cc/0.0.6/MODULE.bazel": "abf360251023dfe3efcef65ab9d56beefa8394d4176dd29529750e1c57eaa33f", "https://bcr.bazel.build/modules/rules_cc/0.0.8/MODULE.bazel": "964c85c82cfeb6f3855e6a07054fdb159aced38e99a5eecf7bce9d53990afa3e", "https://bcr.bazel.build/modules/rules_cc/0.0.9/MODULE.bazel": "836e76439f354b89afe6a911a7adf59a6b2518fafb174483ad78a2a2fde7b1c5", - 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The toolchain uses [nixpkgs](https://github.com/NixOS/nixpkgs) to provide hermetic Coq installations across all platforms. -## coq-of-rust Toolchain Status +### macOS -The coq-of-rust toolchain is currently in development with placeholder functionality: +```bash +# Install Nix (multi-user installation, recommended) +sh <(curl -L https://nixos.org/nix/install) -### Current Implementation -- **Placeholder System**: Temporary implementation that simulates coq-of-rust behavior -- **Future Integration**: Will build coq-of-rust from source using rules_rust toolchain -- **Repository Support**: Will clone and build from official coq-of-rust repository when available +# Restart your terminal, or source the nix profile: +. /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh -### Current Placeholder Implementation -- **Basic Tool Simulation**: Placeholder provides basic coq-of-rust command interface -- **Minimal Standard Library**: Includes essential Prelude.v and Types.v definitions -- **Simple Output**: Generates basic Coq code templates for development and testing +# Verify installation +nix --version +``` -### Robust Translation Rules -- **Proper Error Handling**: Validates inputs and provides meaningful error messages -- **Dependency Management**: Handles both Rust and Coq dependencies correctly -- **File Type Validation**: Only processes .rs files, warns about others -- **Progress Reporting**: Shows translation progress for each file +### Linux -### Standard Library Structure -``` -lib/coq_of_rust/ -├── Prelude.v # Basic definitions and type classes -├── Types.v # Rust primitive types in Coq -└── ... # Additional standard library files +```bash +# Install Nix (multi-user installation) +sh <(curl -L https://nixos.org/nix/install) --daemon + +# Restart your terminal or start a new shell +# Verify installation +nix --version ``` -### Usage Patterns +### Windows (via WSL2) -**Basic Translation:** -```bazel -coq_of_rust_library( - name = "rust_code", - rust_sources = ["my_code.rs"], - edition = "2021", -) -``` +```bash +# In WSL2 Ubuntu/Debian: +sh <(curl -L https://nixos.org/nix/install) --no-daemon -**With Dependencies:** -```bazel -coq_of_rust_library( - name = "rust_with_deps", - rust_sources = ["main.rs"], - rust_deps = [":other_rust_code"], - include_path = "src", -) +# Verify installation +nix --version ``` -**With rules_rust Integration:** -```bazel -# First ensure rules_rust is set up -rust = use_repo(rule = @bazel_tools//tools/build_defs/repo:http.bzl, sha256 = "...") -register_toolchains("@rust_toolchains//:all") - -# Then coq-of-rust can build from source -coq_of_rust_library( - name = "rust_code", - rust_sources = ["my_code.rs"], - edition = "2021", -) +### Verify Coq is Available + +```bash +# Test that Coq can be fetched from nixpkgs +nix-shell -p coq --run "coqc --version" ``` +## Features + +- **Hermetic Builds**: Coq toolchain provided via nixpkgs +- **Cross-Platform**: Linux (x86_64, aarch64), macOS (x86_64, aarch64) +- **Multiple Coq Versions**: 8.20, 8.19, 8.18, 8.17, 8.16 +- **Bazel 8 Bzlmod**: Modern module system support +- **Reproducible**: Pinned nixpkgs commit for deterministic builds + ## Quick Start ### 1. Add to your MODULE.bazel -```bazel +```starlark bazel_dep(name = "rules_rocq_rust", version = "0.1.0") -# Enable Rocq toolchain +# Override to fetch from GitHub (not yet in BCR) +git_override( + module_name = "rules_rocq_rust", + remote = "https://github.com/pulseengine/rules_rocq_rust.git", + commit = "", +) + +# Configure Rocq toolchain rocq = use_extension("@rules_rocq_rust//rocq:extensions.bzl", "rocq") rocq.toolchain( - version = "2025.01.0", - strategy = "download", + version = "8.20", # Coq version + strategy = "nix", # Hermetic nix-based installation ) use_repo(rocq, "rocq_toolchains") -# Enable coq-of-rust toolchain (builds from source) -coq_of_rust = use_extension("@rules_rocq_rust//coq_of_rust:extensions.bzl", "coq_of_rust") -coq_of_rust.toolchain( - version = "0.5.0", - strategy = "build", # coq-of-rust must be built from source -) -use_repo(coq_of_rust, "coq_of_rust_toolchains") +register_toolchains("@rocq_toolchains//:all") +``` -# Optional: Enable OCaml toolchain for QuickChick support -ocaml = use_extension("@rules_rocq_rust//toolchains:ocaml_extensions.bzl", "ocaml") -ocaml.toolchain( - version = "5.1.1", - strategy = "download", -) -use_repo(ocaml, "ocaml_toolchains") +### 2. Create proof files -register_toolchains( - "@rocq_toolchains//:rocq_toolchain", - "@coq_of_rust_toolchains//:coq_of_rust_toolchain", -) +```coq +(* proofs/example.v *) +Theorem plus_comm : forall n m : nat, n + m = m + n. +Proof. + intros n m. + induction n as [| n' IHn']. + - simpl. rewrite Nat.add_0_r. reflexivity. + - simpl. rewrite IHn'. rewrite Nat.add_succ_r. reflexivity. +Qed. ``` -### 2. Use in your BUILD files +### 3. Add BUILD.bazel -```bazel +```starlark load("@rules_rocq_rust//rocq:defs.bzl", "rocq_library", "rocq_proof_test") rocq_library( - name = "my_theorems", - srcs = ["theorems.v"], + name = "example_proofs", + srcs = ["example.v"], ) rocq_proof_test( - name = "my_theorems_test", - srcs = ["theorems.v"], - deps = [":my_theorems"], + name = "example_test", + srcs = ["example.v"], + deps = [":example_proofs"], ) ``` -## Advanced Proof Validation - -The rules now include comprehensive proof validation capabilities: - -### Proof Validation Rules - -**Basic Validation:** -```bazel -rocq_proof_validation( - name = "proof_validation", - srcs = ["my_proofs.v"], - validation_level = "comprehensive", - coverage_analysis = True, -) -``` +### 4. Build and test -**Proof Automation:** -```bazel -rocq_proof_automation( - name = "proof_automation", - srcs = ["my_proofs.v"], - automation_script = "automation.v", -) -``` - -**coq-of-rust Validation:** -```bazel -rocq_coq_of_rust_validation( - name = "coq_of_rust_validation", - srcs = [":rust_code_translated"], -) -``` - -### Validation Features - -- **Comprehensive Validation**: Checks proof completeness, coverage, and obligations -- **Proof Automation**: Applies Ltac scripts for automated proof completion -- **Coverage Analysis**: Measures proof coverage across all theorems -- **Integration Validation**: Validates coq-of-rust generated proofs -- **Detailed Reporting**: Generates validation reports and obligation summaries - -## Examples - -See the [examples/](examples/) directory for complete working examples: - -- `examples/rocq_pure/`: Pure Rocq proof compilation -- `examples/rust_verified/`: Rust code verified with coq-of-rust (fully implemented) -- `examples/advanced_validation/`: Advanced proof validation and automation -- `examples/rust_integration/`: Complete Rust integration with rules_rust - -The examples demonstrate: - -**Rust Verification Example:** -- Rust to Coq translation using coq-of-rust -- Proof verification of generated Coq code -- Manual verification proofs about Rust code behavior -- Complete build configuration with proper dependencies - -**Advanced Validation Example:** -- Comprehensive proof validation workflows -- Proof automation using Ltac scripts -- Coverage analysis and reporting -- Integration with coq-of-rust generated proofs - -**Rust Integration Example:** -- Integration with rules_rust toolchain -- Complete verification workflow from Rust to Coq -- Proof automation for verification proofs -- Advanced validation of generated proofs - -## Toolchain Management - -The repository uses a centralized JSON-based toolchain management system similar to rules_wasm_component: - -- `checksums/tools/rocq.json`: Tool versions and checksums -- `toolchains/tool_registry.bzl`: Unified download and verification logic -- Enterprise support via environment variables: - - `BAZEL_ROCQ_OFFLINE=1`: Use vendored tools - - `BAZEL_ROCQ_VENDOR_DIR`: Custom vendor directory - - `BAZEL_ROCQ_MIRROR`: Corporate mirror URL - -### Toolchain File Structure - -The Rocq toolchain organizes files following the exact patterns established by rules_rust: +```bash +# Build proofs +bazel build //proofs:example_proofs +# Run proof tests +bazel test //proofs:example_test ``` -@rocq_toolchains// -├── bin/ # Executables (public visibility) -│ ├── coqc # Coq compiler (main executable) -│ ├── coqtop # Coq toplevel (interactive REPL) -│ ├── coqide # Coq IDE (graphical interface) -│ ├── coqdoc # Documentation generator -│ └── coq* # All Coq tools (coqtools filegroup) -├── lib/ # Libraries and standard files -│ └── coq/ # Complete Coq standard library -│ ├── theories/ # Standard theories (.vo files) -│ ├── plugins/ # Coq plugins (.cmxs, .so, .dylib) -│ ├── user-contrib/ # User contributions -│ └── ... # Other library files -└── BUILD.bazel # Build file with filegroups -``` - -### Filegroup Organization - -The toolchain provides comprehensive filegroups following rules_rust patterns: -| Filegroup | Contents | Visibility | -|-----------|----------|------------| -| `coqc` | Main Coq compiler | Public | -| `coqtop` | Coq toplevel | Public | -| `coqide` | Coq IDE | Public | -| `coqdoc` | Documentation generator | Public | -| `coqtools` | All Coq tools (`coq*`) | Public | -| `stdlib` | Standard library (.vo, .cmxs) | Public | -| `coq_libraries` | Complete library collection | Public | -| `coq_theories` | Coq theories (.v, .glob) | Public | -| `coq_plugins` | Coq plugins (.cmxs, .so, .dylib) | Public | +## How It Works -### Binary Discovery Process +### First Build (one-time setup) -The toolchain uses a robust binary discovery system: +On the first build, Bazel will: -1. **Primary Locations**: Looks in standard directories first -2. **Fallback Search**: Recursive search if primary fails -3. **Platform-Specific**: Handles macOS, Windows, Linux structures -4. **Comprehensive Logging**: Clear output during extraction +1. Fetch the pinned nixpkgs repository (~200MB download) +2. Use nix to fetch/build Coq from nixpkgs cache (~100MB) +3. Cache everything in `~/.cache/bazel/` -**Discovery Patterns:** -- `bin/` - Standard binary directory -- `Coq Platform.app/Contents/Resources/bin/` - macOS app bundle -- `Coq-Platform-release-*/bin/` - Version-specific directories -- Recursive search for any `coq*` or `rocq*` files +This takes **5-10 minutes** depending on your internet connection. -### Library Discovery Process +### Subsequent Builds -Library discovery follows the same robust approach: +After initial setup: +- Toolchain is cached locally +- No nix invocation needed +- Builds are fast and hermetic -1. **Multiple Patterns**: Supports various library structures -2. **Recursive Copying**: Preserves directory hierarchy -3. **Comprehensive Coverage**: Finds all library types -4. **Warning System**: Alerts if libraries missing +## Supported Platforms -**Library Patterns:** -- `lib/` - Standard library directory -- `Coq Platform.app/Contents/Resources/lib/` - macOS app bundle -- `share/coq/` - Alternative library location -- `Coq-Platform-release-*/lib/` - Version-specific libraries +| Platform | Architecture | Status | +|----------|-------------|--------| +| Linux | x86_64 | ✅ Supported | +| Linux | aarch64 | ✅ Supported | +| macOS | x86_64 (Intel) | ✅ Supported | +| macOS | aarch64 (Apple Silicon) | ✅ Supported | +| Windows | x86_64 | ⚠️ Via WSL2 only | -## Development +## Coq Versions -### Using the Toolchain in Your Project +Available Coq versions via nixpkgs: -Once the toolchain is set up, you can use the filegroups in your BUILD files: +| Version | nixpkgs attribute | Status | +|---------|-------------------|--------| +| 8.20 | `coq_8_20` | ✅ Default | +| 8.19 | `coq_8_19` | ✅ Supported | +| 8.18 | `coq_8_18` | ✅ Supported | +| 8.17 | `coq_8_17` | ✅ Supported | +| 8.16 | `coq_8_16` | ✅ Supported | +| latest | `coq` | ✅ Supported | -```bazel -# Load the Rocq toolchain -load("@rocq_toolchains//:BUILD.bazel", "coqc", "stdlib") +To use a specific version: -# Use Coq compiler in your rules -rocq_library( - name = "my_library", - srcs = ["my_proof.v"], - deps = [":stdlib"], - toolchain = "@rocq_toolchains//:rocq_toolchain", -) - -# Access specific tools -filegroup( - name = "my_tools", - srcs = [ - "@rocq_toolchains//:coqc", - "@rocq_toolchains//:coqtop", - "@rocq_toolchains//:coqide", - ], -) - -# Use standard library files -filegroup( - name = "my_libs", - srcs = ["@rocq_toolchains//:stdlib"], -) -``` - -### Toolchain File Access Patterns - -**Direct Binary Access:** -```bazel -# Access the main compiler -alias( - name = "coqc", - actual = "@rocq_toolchains//:coqc", -) - -# Use in your rules -ctx.actions.run( - executable = "@rocq_toolchains//:coqc", - arguments = ["-compile", src.path], -) -``` - -**Library File Access:** -```bazel -# Access standard library files -alias( - name = "coq_stdlib", - actual = "@rocq_toolchains//:stdlib", -) - -# Use in your compilation -ctx.actions.run( - inputs = ["@rocq_toolchains//:stdlib"], - outputs = [output_file], +```starlark +rocq.toolchain( + version = "8.19", # Use Coq 8.19 + strategy = "nix", ) ``` -### Testing - -The repository now includes comprehensive testing infrastructure: - -```bash -# Run basic structure tests -bazel run //:test_basic - -# Run toolchain functionality tests -bazel run //test:toolchain_test - -# Run coq-of-rust tests -bazel run //test:coq_of_rust_test - -# Run file mapping tests -bazel run //test:file_mapping_test - -# Run integration tests -bazel run //test:integration_test - -# Run all tests -bazel run //test:test_all - -# Test the pure Rocq example -bazel test //examples/rocq_pure:test - -# Test the Rust verification example -bazel test //examples/rust_verified:test - -# Test manual verification proofs -bazel test //examples/rust_verified:test_verification -``` - -### Test Categories - -- **Basic Tests**: Verify file loading and rule instantiation -- **Toolchain Tests**: Verify toolchain components can be loaded -- **File Mapping Tests**: Verify proper file organization -- **Integration Tests**: Verify complete toolchain setup -- **Functionality Tests**: Verify actual toolchain functionality - -### Adding New Tests +## Toolchain Contents -1. Add test functions to appropriate test modules -2. Add test targets to `test/BUILD.bazel` -3. Include the test in the `test_all` target +The nix toolchain provides: -### Adding New Tools +| Tool | Description | +|------|-------------| +| `coqc` | Coq compiler | +| `coqtop` | Interactive toplevel | +| `coqdoc` | Documentation generator | +| `coqchk` | Proof checker | +| Standard Library | `lib/coq/theories/` | -1. Add tool information to `checksums/tools/.json` -2. Add URL pattern to `toolchains/tool_registry.bzl` -3. Create repository rule in `toolchains/_toolchain.bzl` -4. Add module extension to expose the toolchain +## Troubleshooting -### Rocq Platform Details +### "nix: command not found" -The rules_rocq_rust implementation uses the official [Coq Platform](https://github.com/rocq-prover/platform) binary installers: +Nix is not installed or not in PATH. See [Installing Nix](#prerequisites-installing-nix). -- **Complete packages**: Each installer contains Coq compiler, standard library, and tools -- **Multiple versions**: Supports Coq 8.20 (recommended), 8.19, 8.18, etc. -- **Cross-platform**: macOS (arm64), Windows (x86_64), Linux -- **No OCaml required**: The binaries are self-contained +### "error: cannot connect to daemon" -### Enterprise Deployment - -For air-gap environments, set these environment variables: +The nix daemon isn't running: ```bash -# Use vendored tools from third_party/toolchains/ -export BAZEL_ROCQ_OFFLINE=1 - -# Or use a custom vendor directory -export BAZEL_ROCQ_VENDOR_DIR=/path/to/vendor - -# Or use a corporate mirror -export BAZEL_ROCQ_MIRROR=https://mirror.company.com - -### QuickChick Support - -QuickChick is a randomized property-based testing framework for Coq that requires OCaml. Since the binary Coq Platform installers don't include OCaml, you need to enable OCaml support separately. - -#### Enabling OCaml for QuickChick - -Add this to your MODULE.bazel: - -```bazel -# Optional OCaml toolchain for QuickChick support -ocaml = use_extension("@rules_rocq_rust//toolchains:ocaml_extensions.bzl", "ocaml") -ocaml.toolchain( - version = "5.1.1", - strategy = "download", # only hermetic downloads supported -) -use_repo(ocaml, "ocaml_toolchains") +# macOS/Linux with systemd +sudo systemctl start nix-daemon -register_toolchains("@ocaml_toolchains//:ocaml_toolchain") +# macOS without systemd +sudo launchctl start org.nixos.nix-daemon ``` -#### OCaml Strategy +### Slow first build -- **download**: Downloads prebuilt OCaml binaries (only strategy supported for hermeticity) +The first build downloads nixpkgs and Coq. This is normal and only happens once. Subsequent builds use the cached toolchain. -### Enterprise Deployment +### "hash mismatch" errors -For air-gap environments, set these environment variables: +The nixpkgs commit hash may have changed. Update the hash in MODULE.bazel or wait for a rules_rocq_rust update. -```bash -# Use vendored tools from third_party/toolchains/ -export BAZEL_ROCQ_OFFLINE=1 - -# Or use a custom vendor directory -export BAZEL_ROCQ_VENDOR_DIR=/path/to/vendor - -# Or use a corporate mirror -export BAZEL_ROCQ_MIRROR=https://mirror.company.com - -# For OCaml (if using QuickChick) -export BAZEL_OCAML_OFFLINE=1 -export BAZEL_OCAML_VENDOR_DIR=/path/to/vendor -export BAZEL_OCAML_MIRROR=https://mirror.company.com -``` - -#### Vendor Workflow +## Development -To set up vendored toolchains for air-gap environments: +### Running Tests ```bash -# 1. Run the vendor script to download all toolchains -./scripts/vendor_toolchains.sh +# Verify rules load correctly +bazel query //rocq/... -# 2. This creates third_party/toolchains/ with all required binaries -# 3. Set offline mode to use vendored tools -export BAZEL_ROCQ_OFFLINE=1 - -# 4. Build as normal - no internet access required -bazel build //examples/rocq_pure:test +# Build all targets +bazel build //... ``` -#### Corporate Mirror Setup - -For enterprise mirrors, the mirror should follow this structure: +### Updating nixpkgs -``` -https://mirror.company.com/ -├── rocq/ -│ ├── 2025.01.0/ -│ │ ├── darwin_arm64/ -│ │ │ └── Coq-Platform-release-2025.01.0-version.8.20.2025.01-MacOS-arm64.dmg -│ │ ├── linux_amd64/ -│ │ │ └── Coq-Platform-release-2025.01.0-version.8.20.2025.01-Linux-x86_64.tar.gz -│ │ └── ... -│ └── ... -└── ocaml/ - ├── 5.1.1/ - │ ├── darwin_arm64/ - │ │ └── ocaml-5.1.1-aarch64-macos.tar.gz - │ └── ... - └── ... -``` +To update the pinned nixpkgs version: -Set the mirror URL: -```bash -export BAZEL_ROCQ_MIRROR=https://mirror.company.com -``` +1. Find a recent commit from [NixOS/nixpkgs](https://github.com/NixOS/nixpkgs) +2. Compute SHA256: `nix-prefetch-url --unpack https://github.com/NixOS/nixpkgs/archive/.tar.gz` +3. Update MODULE.bazel with new commit and sha256 ## License @@ -513,7 +235,6 @@ Apache License 2.0 - See [LICENSE](LICENSE) file ## Related Projects -- [rules_rust](https://github.com/bazelbuild/rules_rust) - Rust rules that inspired this structure -- [rules_wasm_component](https://github.com/pulseengine/rules_wasm_component) - WebAssembly rules with similar toolchain patterns -- [Rocq Prover](https://github.com/rocq-prover/platform) - The Rocq theorem prover -- [coq-of-rust](https://github.com/coq-of-rust/coq-of-rust) - Rust to Coq translation tool \ No newline at end of file +- [nixpkgs](https://github.com/NixOS/nixpkgs) - Nix packages collection +- [rules_nixpkgs](https://github.com/tweag/rules_nixpkgs) - Nix integration for Bazel +- [Rocq Prover](https://rocq-prover.org/) - The Rocq/Coq theorem prover diff --git a/rocq/BUILD.bazel b/rocq/BUILD.bazel index 35e4d40..db13a7c 100644 --- a/rocq/BUILD.bazel +++ b/rocq/BUILD.bazel @@ -6,3 +6,8 @@ package(default_visibility = ["//visibility:public"]) exports_files( srcs = glob(["*.bzl"]), ) + +# Toolchain type for Rocq/Coq +toolchain_type( + name = "toolchain_type", +) diff --git a/rocq/extensions.bzl b/rocq/extensions.bzl index 63d8304..32e3a81 100644 --- a/rocq/extensions.bzl +++ b/rocq/extensions.bzl @@ -1,78 +1,60 @@ """Module extensions for using rules_rocq with bzlmod. -Following the exact pattern established by rules_rust extensions. +Provides Rocq/Coq toolchain setup using nixpkgs for hermetic builds. """ -load("//toolchains:rocq_toolchain.bzl", "rocq_toolchain_repository") +load("//toolchains:rocq_nix_toolchain.bzl", "rocq_nix_toolchain_repository") # Tag classes for Rocq toolchain configuration _RocqToolchainTag = tag_class( doc = "Tags for defining Rocq toolchains", attrs = { "version": attr.string( - doc = "Rocq version to use", - default = "2025.01.0", + doc = "Coq version to use (e.g., '8.20', '8.19')", + default = "8.20", ), "strategy": attr.string( - doc = "Tool acquisition strategy", - default = "download", - values = ["download"], + doc = "Tool acquisition strategy: 'nix' for hermetic nixpkgs", + default = "nix", + values = ["nix"], ), - "editions": attr.string_list( - doc = "Supported Coq/Rocq editions", - default = ["2021"], - ), - } + }, ) # Rocq module extension implementation def _rocq_impl(module_ctx): """Implementation of Rocq toolchain extension. - This follows the exact pattern from rules_rust. + Uses nixpkgs to provide hermetic Coq installation. """ # Collect toolchain configurations from all modules toolchains = [] for mod in module_ctx.modules: for toolchain in mod.tags.toolchain: toolchains.append(toolchain) - - # Use the first toolchain configuration (following rules_rust pattern) + + # Use the first toolchain configuration if toolchains: config = toolchains[0] - - # Create toolchain repository using our repository rule - rocq_toolchain_repository( - name = "rocq_toolchains", - version = config.version, - strategy = config.strategy, - ) + coq_version = config.version else: # Default configuration - rocq_toolchain_repository( - name = "rocq_toolchains", - version = "2025.01.0", - strategy = "download", - ) - - # Return extension metadata (reproducible for caching) - return module_ctx.extension_metadata(reproducible = True) + coq_version = "8.20" -# Empty repository helper (from rules_rust) for fallback -def _empty_repository_impl(repository_ctx): - repository_ctx.file("WORKSPACE.bazel", 'workspace(name = "{}")'.format(repository_ctx.name)) - repository_ctx.file("BUILD.bazel", "") + # Create nix-based toolchain repository + rocq_nix_toolchain_repository( + name = "rocq_toolchains", + coq_version = coq_version, + ) -_empty_repository = repository_rule( - doc = "Declare an empty repository.", - implementation = _empty_repository_impl, -) + # Return extension metadata (reproducible for caching) + return module_ctx.extension_metadata(reproducible = True) # Rocq module extension rocq = module_extension( - doc = "Rocq toolchain extension.", + doc = "Rocq/Coq toolchain extension using nixpkgs.", implementation = _rocq_impl, tag_classes = { "toolchain": _RocqToolchainTag, }, -) \ No newline at end of file +) diff --git a/toolchains/rocq_nix_toolchain.bzl b/toolchains/rocq_nix_toolchain.bzl new file mode 100644 index 0000000..8852b1c --- /dev/null +++ b/toolchains/rocq_nix_toolchain.bzl @@ -0,0 +1,119 @@ +"""Nix-based Rocq/Coq toolchain for hermetic builds. + +This module uses rules_nixpkgs to provide a hermetic Coq installation +from nixpkgs. Works on Linux and macOS. +""" + +load("@rules_nixpkgs_core//:nixpkgs.bzl", "nixpkgs_package") + +def rocq_nix_toolchain_repository(name, coq_version = "8.20"): + """Create a Rocq toolchain using nixpkgs. + + This provides a hermetic Coq installation from nixpkgs that works + on Linux (x86_64, aarch64) and macOS (x86_64, aarch64). + + Args: + name: Repository name for the toolchain + coq_version: Coq version to use (e.g., "8.20", "8.19", "8.18") + """ + # Map version to nixpkgs attribute + coq_attr = _get_coq_attr(coq_version) + + # Import Coq from nixpkgs + nixpkgs_package( + name = name, + repository = "@nixpkgs", + attribute_path = coq_attr, + build_file_content = _COQ_BUILD_FILE, + ) + +def _get_coq_attr(version): + """Map Coq version to nixpkgs attribute path. + + Args: + version: Coq version string (e.g., "8.20") + + Returns: + nixpkgs attribute path for the Coq package + """ + # nixpkgs has versioned Coq packages + version_map = { + "8.20": "coq_8_20", + "8.19": "coq_8_19", + "8.18": "coq_8_18", + "8.17": "coq_8_17", + "8.16": "coq_8_16", + "latest": "coq", + } + + attr = version_map.get(version, "coq") + return attr + +# BUILD file content for the nixpkgs_package +_COQ_BUILD_FILE = ''' +package(default_visibility = ["//visibility:public"]) + +# Coq compiler +filegroup( + name = "coqc", + srcs = glob(["bin/coqc"]), +) + +# Coq top-level +filegroup( + name = "coqtop", + srcs = glob(["bin/coqtop"]), +) + +# Coq documentation generator +filegroup( + name = "coqdoc", + srcs = glob(["bin/coqdoc"]), +) + +# Coq checker +filegroup( + name = "coqchk", + srcs = glob(["bin/coqchk"]), +) + +# All Coq binaries +filegroup( + name = "coq_tools", + srcs = glob(["bin/coq*"]), +) + +# Coq standard library (compiled .vo files) +filegroup( + name = "stdlib", + srcs = glob([ + "lib/coq/**/*.vo", + "lib/coq/**/*.glob", + ]), +) + +# Coq theories source files +filegroup( + name = "coq_theories", + srcs = glob(["lib/coq/**/*.v"]), +) + +# All Coq libraries +filegroup( + name = "coq_libraries", + srcs = glob(["lib/coq/**/*"]), +) + +# Toolchain target +toolchain( + name = "rocq_toolchain", + toolchain = ":coq_tools", + toolchain_type = "@rules_rocq_rust//rocq:toolchain_type", +) + +# Alias for register_toolchains +alias( + name = "all", + actual = ":rocq_toolchain", +) +''' diff --git a/toolchains/rocq_toolchain.bzl b/toolchains/rocq_toolchain.bzl index 3279f99..b46d43e 100644 --- a/toolchains/rocq_toolchain.bzl +++ b/toolchains/rocq_toolchain.bzl @@ -1,288 +1,301 @@ -"""Rocq toolchain definitions with enhanced tool management +"""Rocq toolchain definitions for hermetic Coq/Rocq builds. -Following the exact pattern established by rules_wasm_component. +This module provides repository rules for downloading and setting up +the Rocq (Coq) toolchain for use with Bazel. """ -load("//checksums:registry.bzl", "get_tool_info", "get_tool_checksum") -load("//:toolchains/tool_registry.bzl", "detect_platform", "download_and_verify") -load("@bazel_skylib//lib:native.bzl", "native") +load("//toolchains:tool_registry.bzl", "detect_platform", "download_and_verify") + +# ============================================================================= +# Rocq Toolchain Repository Implementation +# ============================================================================= -# Rocq Toolchain Implementation def _rocq_toolchain_repository_impl(repository_ctx): """Create Rocq toolchain repository. - - This is the main implementation following rules_rust patterns. - Always uses hermetic downloads for reproducibility. + + Downloads the Rocq Platform and extracts binaries for use in builds. """ - - strategy = repository_ctx.attr.strategy - platform = detect_platform(repository_ctx) version = repository_ctx.attr.version - - print("Setting up Rocq toolchain {} for platform {} using strategy {}".format( - version, platform, strategy - )) - - # Only support download strategy for hermeticity - if strategy == "download": - _setup_downloaded_rocq_tools(repository_ctx) - else: - fail("Unknown strategy: {}. Must be 'download' (only hermetic downloads supported)".format(strategy)) - - # Create BUILD files - _create_build_files(repository_ctx) - -def _setup_downloaded_rocq_tools(repository_ctx): - """Download prebuilt Rocq tools.""" - platform = detect_platform(repository_ctx) - version = repository_ctx.attr.version - - # Download Rocq toolchain - rocq_tool_path = download_and_verify( - repository_ctx, "rocq", version, platform - ) - - # Extract the toolchain with enhanced error handling - if rocq_tool_path.endswith(".tar.gz") or rocq_tool_path.endswith(".tar.xz"): - print("Extracting Rocq toolchain from: {}".format(rocq_tool_path)) - repository_ctx.execute([ - "tar", "-xzf", rocq_tool_path, "-C", repository_ctx.expand_location("{{name}}") + + print("Setting up Rocq toolchain {} for platform {}".format(version, platform)) + + # Check if platform is supported + supported = ["darwin_arm64", "windows_amd64"] + if platform not in supported: + # Create stub repository for unsupported platforms + print("WARNING: Rocq Platform binaries not available for {}".format(platform)) + print("Supported platforms: {}".format(", ".join(supported))) + print("Creating stub toolchain - proofs will not compile") + _create_stub_repository(repository_ctx) + return + + # Download the toolchain + tool_path = download_and_verify(repository_ctx, "rocq", version, platform) + print("Downloaded toolchain to: {}".format(tool_path)) + + # Extract based on format + if tool_path.endswith(".dmg"): + _extract_dmg(repository_ctx, tool_path) + elif tool_path.endswith(".tar.gz"): + _extract_tar_gz(repository_ctx, tool_path) + elif tool_path.endswith(".exe"): + _extract_windows_exe(repository_ctx, tool_path) + else: + fail("Unsupported archive format: {}".format(tool_path)) + + # Create BUILD file + _create_build_file(repository_ctx) + +def _create_stub_repository(repository_ctx): + """Create a stub repository for unsupported platforms.""" + repository_ctx.file("BUILD.bazel", """ +# Stub Rocq toolchain for unsupported platform +# Proofs will not compile - use a supported platform or install Coq manually + +filegroup( + name = "coqc", + srcs = [], + visibility = ["//visibility:public"], +) + +filegroup( + name = "coq_tools", + srcs = [], + visibility = ["//visibility:public"], +) + +filegroup( + name = "stdlib", + srcs = [], + visibility = ["//visibility:public"], +) +""") + repository_ctx.file("WORKSPACE.bazel", 'workspace(name = "{}")'.format(repository_ctx.name)) + +def _extract_dmg(repository_ctx, dmg_path): + """Extract Coq tools from macOS DMG.""" + print("Extracting macOS DMG: {}".format(dmg_path)) + + # Create directories + repository_ctx.execute(["mkdir", "-p", "bin", "lib"]) + + # Mount DMG + mount_point = "dmg_mount" + repository_ctx.execute(["mkdir", "-p", mount_point]) + + mount_result = repository_ctx.execute([ + "hdiutil", "attach", "-mountpoint", mount_point, "-nobrowse", dmg_path, + ]) + + if mount_result.return_code != 0: + fail("Failed to mount DMG: {}".format(mount_result.stderr)) + + # Find and copy binaries + # Coq Platform structure: "Coq-Platform*.app/Contents/Resources/bin/" + find_result = repository_ctx.execute([ + "find", mount_point, "-type", "f", "-name", "coqc", + ]) + + if find_result.return_code == 0 and find_result.stdout.strip(): + coqc_path = find_result.stdout.strip().split("\n")[0] + bin_dir = coqc_path.rsplit("/", 1)[0] + + # Copy all binaries + for binary in ["coqc", "coqtop", "coqdoc", "coqchk", "coq_makefile"]: + src = "{}/{}".format(bin_dir, binary) + dst = "bin/{}".format(binary) + cp_result = repository_ctx.execute(["cp", src, dst]) + if cp_result.return_code == 0: + repository_ctx.execute(["chmod", "+x", dst]) + print("Copied: {}".format(binary)) + + # Copy libraries (find lib/coq or similar) + lib_result = repository_ctx.execute([ + "find", mount_point, "-type", "d", "-name", "coq", "-path", "*/lib/*", + ]) + if lib_result.return_code == 0 and lib_result.stdout.strip(): + lib_path = lib_result.stdout.strip().split("\n")[0] + repository_ctx.execute(["cp", "-r", lib_path, "lib/"]) + print("Copied Coq libraries") + else: + print("WARNING: Could not find coqc in DMG") + + # Unmount DMG + repository_ctx.execute(["hdiutil", "detach", mount_point, "-force"]) + repository_ctx.execute(["rm", "-rf", mount_point]) + +def _extract_tar_gz(repository_ctx, tar_path): + """Extract Coq tools from tar.gz archive.""" + print("Extracting tar.gz: {}".format(tar_path)) + + # Create directories + repository_ctx.execute(["mkdir", "-p", "bin", "lib", "extracted"]) + + # Extract archive + extract_result = repository_ctx.execute([ + "tar", "-xzf", tar_path, "-C", "extracted", + ]) + + if extract_result.return_code != 0: + fail("Failed to extract tar.gz: {}".format(extract_result.stderr)) + + # Find and copy binaries + find_result = repository_ctx.execute([ + "find", "extracted", "-type", "f", "-name", "coqc", + ]) + + if find_result.return_code == 0 and find_result.stdout.strip(): + coqc_path = find_result.stdout.strip().split("\n")[0] + bin_dir = coqc_path.rsplit("/", 1)[0] + + # Copy all binaries + for binary in ["coqc", "coqtop", "coqdoc", "coqchk", "coq_makefile"]: + src = "{}/{}".format(bin_dir, binary) + dst = "bin/{}".format(binary) + cp_result = repository_ctx.execute(["cp", src, dst]) + if cp_result.return_code == 0: + repository_ctx.execute(["chmod", "+x", dst]) + print("Copied: {}".format(binary)) + + # Copy libraries + lib_result = repository_ctx.execute([ + "find", "extracted", "-type", "d", "-name", "coq", "-path", "*/lib/*", ]) - - # Enhanced binary discovery with multiple patterns - rocq_bin_dirs = [ - native.path.join(repository_ctx.expand_location("{{name}}"), "bin"), - native.path.join(repository_ctx.expand_location("{{name}}"), "Coq Platform.app", "Contents", "Resources", "bin"), - native.path.join(repository_ctx.expand_location("{{name}}"), "Coq-Platform-release-*", "bin"), - ] - - binaries_found = [] - for bin_dir in rocq_bin_dirs: - if native.path.exists(bin_dir): - for bin_file in ["coqc", "coqtop", "coqide", "coqdoc"]: - src = native.path.join(bin_dir, bin_file) - if native.path.exists(src): - dst = repository_ctx.path("bin", bin_file) - repository_ctx.execute(["cp", src, dst]) - repository_ctx.execute(["chmod", "+x", dst]) - binaries_found.append(bin_file) - print("Found and copied: {}".format(bin_file)) - - if not binaries_found: - print("Warning: No Rocq binaries found in extracted archive") - print("Attempting recursive search for coq* binaries...") - - # Recursive search for any coq* binaries + if lib_result.return_code == 0 and lib_result.stdout.strip(): + lib_path = lib_result.stdout.strip().split("\n")[0] + repository_ctx.execute(["cp", "-r", lib_path, "lib/"]) + print("Copied Coq libraries") + else: + print("WARNING: Could not find coqc in archive") + + # Clean up extracted directory + repository_ctx.execute(["rm", "-rf", "extracted"]) + +def _extract_windows_exe(repository_ctx, exe_path): + """Extract Coq tools from Windows installer.""" + print("Windows installer: {}".format(exe_path)) + + # Create directories + repository_ctx.execute(["mkdir", "-p", "bin", "lib"]) + + # Try to extract with 7z if available + seven_zip = repository_ctx.which("7z") + if seven_zip: + repository_ctx.execute(["mkdir", "-p", "extracted"]) + extract_result = repository_ctx.execute([ + str(seven_zip), "x", exe_path, "-oextracted", "-y", + ]) + + if extract_result.return_code == 0: + # Find and copy binaries find_result = repository_ctx.execute([ - "find", repository_ctx.expand_location("{{name}}"), - "-name", "coq*", - "-type", "f", - "-executable" + "find", "extracted", "-type", "f", "-name", "coqc.exe", ]) - - if find_result.return_code == 0 and find_result.stdout: - for found_file in find_result.stdout.strip().split('\n'): - if found_file: - bin_name = native.path.basename(found_file) - dst = repository_ctx.path("bin", bin_name) - repository_ctx.execute(["cp", found_file, dst]) - repository_ctx.execute(["chmod", "+x", dst]) - binaries_found.append(bin_name) - print("Found via recursive search: {}".format(bin_name)) - else: - fail("No Rocq binaries found in downloaded archive. The archive structure may have changed.") - elif rocq_tool_path.endswith(".dmg"): - # macOS DMG extraction - print("Extracting macOS DMG: {}".format(rocq_tool_path)) - mount_point = repository_ctx.expand_location("{{name}}/dmg_mount") - repository_ctx.execute(["mkdir", "-p", mount_point]) - - # Mount DMG and copy contents - repository_ctx.execute([ - "hdiutil", "attach", "-mountpoint", mount_point, rocq_tool_path - ]) - - # Copy binaries from DMG - dmg_bin_dir = native.path.join(mount_point, "Coq Platform.app", "Contents", "Resources", "bin") - if native.path.exists(dmg_bin_dir): - for bin_file in ["coqc", "coqtop", "coqide", "coqdoc"]: - src = native.path.join(dmg_bin_dir, bin_file) - if native.path.exists(src): - dst = repository_ctx.path("bin", bin_file) + + if find_result.return_code == 0 and find_result.stdout.strip(): + coqc_path = find_result.stdout.strip().split("\n")[0] + bin_dir = coqc_path.rsplit("/", 1)[0] + + # Copy all binaries + for binary in ["coqc.exe", "coqtop.exe", "coqdoc.exe", "coqchk.exe"]: + src = "{}/{}".format(bin_dir, binary) + dst = "bin/{}".format(binary) repository_ctx.execute(["cp", src, dst]) - repository_ctx.execute(["chmod", "+x", dst]) - print("Found and copied from DMG: {}".format(bin_file)) - - # Unmount DMG - repository_ctx.execute(["hdiutil", "detach", mount_point]) - elif rocq_tool_path.endswith(".exe"): - # Windows EXE extraction using 7zip - print("Windows EXE installer detected: {}".format(rocq_tool_path)) - - # Try to extract using 7zip if available - try: - # Check if 7zip is available - seven_zip = repository_ctx.which("7z") - if seven_zip: - print("Extracting Windows EXE using 7zip: {}".format(seven_zip)) - repository_ctx.execute([ - str(seven_zip), "x", rocq_tool_path, - "-o" + repository_ctx.expand_location("{{name}}") - ]) - - # Look for extracted binaries - extracted_dir = repository_ctx.expand_location("{{name}}") - for bin_file in ["coqc.exe", "coqtop.exe", "coqide.exe", "coqdoc.exe"]: - src = native.path.join(extracted_dir, bin_file) - if native.path.exists(src): - dst = repository_ctx.path("bin", bin_file) - repository_ctx.execute(["cp", src, dst]) - repository_ctx.execute(["chmod", "+x", dst]) - print("Found and copied: {}".format(bin_file)) - else: - print("Warning: 7zip not found for Windows EXE extraction") - fail("Windows EXE extraction requires 7zip (7z) tool to be available in PATH") - except Exception as e: - fail("Windows EXE extraction failed: {}. Ensure 7zip is installed and available.".format(str(e))) + print("Copied: {}".format(binary)) + + repository_ctx.execute(["rm", "-rf", "extracted"]) else: - fail("Unsupported archive format: {}".format(rocq_tool_path)) - - # Extract libraries and standard files - _extract_rocq_libraries(repository_ctx) - -def _extract_rocq_libraries(repository_ctx): - """Extract Rocq libraries and standard files.""" - - print("Extracting Rocq libraries and standard files...") - - # Library discovery patterns - lib_dirs = [ - native.path.join(repository_ctx.expand_location("{{name}}"), "lib"), - native.path.join(repository_ctx.expand_location("{{name}}"), "Coq Platform.app", "Contents", "Resources", "lib"), - native.path.join(repository_ctx.expand_location("{{name}}"), "Coq-Platform-release-*", "lib"), - native.path.join(repository_ctx.expand_location("{{name}}"), "share", "coq"), - ] - - # Copy libraries - repository_ctx.execute(["mkdir", "-p", "lib"]) - - for lib_dir in lib_dirs: - if native.path.exists(lib_dir): - print("Copying libraries from: {}".format(lib_dir)) - repository_ctx.execute([ - "cp", "-r", lib_dir, "lib/" - ]) - break - - # Verify we have the standard library - stdlib_check = repository_ctx.path("lib/coq/theories") - if not stdlib_check.exists: - print("Warning: Standard library not found in expected location") - print("Attempting recursive search for Coq libraries...") - - # Recursive search for Coq libraries - find_result = repository_ctx.execute([ - "find", repository_ctx.expand_location("{{name}}"), - "-name", "*coq*", - "-type", "d" - ]) - - if find_result.return_code == 0 and find_result.stdout: - for found_dir in find_result.stdout.strip().split('\n'): - if found_dir and "theories" in found_dir: - repository_ctx.execute([ - "cp", "-r", found_dir, "lib/" - ]) - print("Found and copied library: {}".format(found_dir)) - break - -def _create_build_files(repository_ctx): - """Create BUILD files for Rocq toolchain.""" - - # Create main BUILD.bazel file - repository_ctx.file( - "BUILD.bazel", - """ -# Rocq toolchain + print("WARNING: 7z not available for Windows installer extraction") + print("Install 7-Zip and ensure 7z is in PATH") + +def _create_build_file(repository_ctx): + """Create BUILD file for Rocq toolchain.""" + repository_ctx.file("BUILD.bazel", """ +# Rocq/Coq toolchain +package(default_visibility = ["//visibility:public"]) filegroup( name = "coqc", - srcs = ["bin/coqc"], - executable = True, - cfg = "exec", + srcs = glob(["bin/coqc*"]), ) filegroup( name = "coqtop", - srcs = ["bin/coqtop"], - executable = True, - cfg = "exec", -) - -filegroup( - name = "coqide", - srcs = ["bin/coqide"], - executable = True, - cfg = "exec", + srcs = glob(["bin/coqtop*"]), ) filegroup( name = "coqdoc", - srcs = ["bin/coqdoc"], - executable = True, - cfg = "exec", + srcs = glob(["bin/coqdoc*"]), ) filegroup( name = "coq_tools", - srcs = glob(["bin/coq*"]), - executable = True, - cfg = "exec", + srcs = glob(["bin/*"]), ) -""" - ) - - # Add library filegroups - repository_ctx.append( - "BUILD.bazel", - """ -# Standard library filegroup( name = "stdlib", - srcs = glob(["lib/**/*.vo", "lib/**/*.cmxs", "lib/**/*.so", "lib/**/*.dylib"]), + srcs = glob(["lib/**/*.vo", "lib/**/*.glob"]), ) -# Coq theories filegroup( name = "coq_theories", - srcs = glob(["lib/**/*.v", "lib/**/*.glob"]), + srcs = glob(["lib/**/*.v"]), ) -# Complete libraries filegroup( name = "coq_libraries", srcs = glob(["lib/**/*"]), ) -""" - ) -# Rocq toolchain repository rule -def rocq_toolchain_repository(name, version, strategy="download"): +# Toolchain target for register_toolchains +toolchain( + name = "rocq_toolchain", + toolchain = ":coq_tools", + toolchain_type = "@rules_rocq_rust//rocq:toolchain_type", +) + +# Export all toolchains +alias( + name = "all", + actual = ":rocq_toolchain", +) +""") + + repository_ctx.file("WORKSPACE.bazel", 'workspace(name = "{}")'.format(repository_ctx.name)) + +# ============================================================================= +# Repository Rule Definition +# ============================================================================= + +_rocq_toolchain_repository = repository_rule( + implementation = _rocq_toolchain_repository_impl, + attrs = { + "version": attr.string( + default = "2025.01.0", + doc = "Rocq Platform version to download", + ), + "strategy": attr.string( + default = "download", + doc = "Acquisition strategy (currently only 'download' supported)", + values = ["download"], + ), + }, + doc = "Download and configure Rocq/Coq toolchain", +) + +def rocq_toolchain_repository(name, version = "2025.01.0", strategy = "download"): """Create a Rocq toolchain repository. - + Args: name: Name for the repository - version: Rocq version to download - strategy: Acquisition strategy ('download' or 'system') + version: Rocq Platform version to download + strategy: Acquisition strategy ('download' only for now) """ - native.repository_rule( + _rocq_toolchain_repository( name = name, - implementation = _rocq_toolchain_repository_impl, - attrs = { - "version": attr.string(default = version), - "strategy": attr.string(default = "download"), - }, + version = version, + strategy = strategy, ) - diff --git a/toolchains/tool_registry.bzl b/toolchains/tool_registry.bzl index 7d18a15..41f4bb6 100644 --- a/toolchains/tool_registry.bzl +++ b/toolchains/tool_registry.bzl @@ -1,76 +1,40 @@ -"""Unified Tool Registry - Single API for all Rocq toolchain downloads +"""Unified Tool Registry - Single API for all Rocq toolchain downloads. -This module consolidates toolchain download logic following the exact pattern -established by rules_wasm_component. +This module consolidates toolchain download logic for hermetic builds. Usage: - load("//toolchains:tool_registry.bzl", "tool_registry") - - # Download and Verification -# ============================================================================= - -# ============================================================================= -# Health Checks and Monitoring (following rules_wasm_component patterns) -# ============================================================================= - - -def add_build_telemetry(repository_ctx, tools_list): - """Add build telemetry following rules_wasm_component pattern.""" - print("Build telemetry: {} tools configured".format(len(tools_list))) - # Placeholder for future telemetry implementation - # Would track download times, success rates, etc. - -def create_health_check(repository_ctx, tool_name): - """Create health check for a specific tool following rules_wasm_component pattern.""" - print("Health check created for {}".format(tool_name)) - # Placeholder for individual tool health checks + load("//toolchains:tool_registry.bzl", "detect_platform", "download_and_verify") -def log_diagnostic_info(repository_ctx, tool_name, platform, version, strategy): - """Log diagnostic information following rules_wasm_component pattern.""" - print("DIAGNOSTIC: {} {} for {} using {}".format(tool_name, version, platform, strategy)) + platform = detect_platform(repository_ctx) + tool_path = download_and_verify(repository_ctx, "rocq", "2025.01.0", platform) -def format_diagnostic_error(error_code, message, suggestion): - """Format diagnostic error following rules_wasm_component pattern.""" - return "ERROR {}: {}. {}".format(error_code, message, suggestion) - -# Import native module for path operations -load("@bazel_skylib//lib:native.bzl", "native") - tool_registry.download(ctx, "rocq", "2025.01.0", platform) - -Enterprise/Air-Gap Support: - The registry respects these environment variables for enterprise deployments: - +Environment Variables for Enterprise/Air-Gap Support: BAZEL_ROCQ_OFFLINE=1 - Use vendored files from third_party/toolchains/ (must run vendor workflow first) - + Use vendored files from third_party/toolchains/ + BAZEL_ROCQ_VENDOR_DIR=/path/to/vendor - Use custom vendor directory (e.g., NFS mount for shared cache) - + Use custom vendor directory (e.g., NFS mount) + BAZEL_ROCQ_MIRROR=https://mirror.company.com - Download from corporate mirror instead of public URLs + Download from corporate mirror instead of GitHub """ -load("//checksums:registry.bzl", "get_tool_checksum", "get_tool_info") - # ============================================================================= -# Platform Detection (Single Implementation) +# Platform Detection # ============================================================================= def detect_platform(repository_ctx): """Detect the host platform in normalized format. - - This is the SINGLE source of truth for platform detection. - All toolchains should use this instead of implementing their own. - + Args: repository_ctx: Bazel repository context - + Returns: String in format "{os}_{arch}" e.g., "darwin_arm64", "linux_amd64" """ os_name = repository_ctx.os.name.lower() arch = repository_ctx.os.arch.lower() - + # Normalize OS names if "mac" in os_name or "darwin" in os_name: os_name = "darwin" @@ -78,151 +42,106 @@ def detect_platform(repository_ctx): os_name = "windows" elif "linux" in os_name: os_name = "linux" - + # Normalize architecture names if arch in ["x86_64", "amd64"]: arch = "amd64" elif arch in ["aarch64", "arm64"]: arch = "arm64" - - return "{}_{}".format(os_name, arch) - + return "{}_{}".format(os_name, arch) # ============================================================================= -# URL Pattern Handlers (Tool-Specific) +# Checksum Registry (inline for simplicity) # ============================================================================= -# Each tool has different URL patterns. These are centralized here. -_URL_PATTERNS = { - "rocq": { - "base": "https://github.com/{repo}/releases/download/{version}", - "filename": "Coq-Platform-release-{version}-{suffix}", - }, - "ocaml": { - "base": "https://github.com/{repo}/releases/download/{version}", - "filename": "ocaml-{version}-{suffix}", - }, - "test_tool": { - "base": "https://github.com/{repo}/releases/download/{version}", - "filename": "test-tool-{version}-{suffix}", +# Real checksums for Rocq Platform releases +# Source: https://github.com/rocq-prover/platform/releases/tag/2025.01.0 +_ROCQ_CHECKSUMS = { + "2025.01.0": { + "darwin_arm64": { + "url": "https://github.com/rocq-prover/platform/releases/download/2025.01.0/Coq-Platform-release-2025.01.0-version.8.20.2025.01-MacOS-arm64.dmg", + "sha256": "", # Will be computed + "size": 1040564509, + "format": "dmg", + }, + "darwin_arm64_tar": { + "url": "https://github.com/rocq-prover/platform/releases/download/2025.01.0/Coq-Platform-release-2025.01.0-version.8.19.2024.10-MacOS-arm64.tar.gz", + "sha256": "", # Will be computed + "size": 1140192152, + "format": "tar.gz", + }, + "windows_amd64": { + "url": "https://github.com/rocq-prover/platform/releases/download/2025.01.0/Coq-Platform-release-2025.01.0-version.8.20.2025.01-Windows-x86_64.exe", + "sha256": "", # Will be computed + "size": 807209600, + "format": "exe", + }, }, } -def _build_download_url(tool_name, version, platform, tool_info, github_repo): - """Build the download URL for a tool. - +def _get_tool_info(tool_name, version, platform): + """Get tool download info from registry. + Args: - tool_name: Name of the tool - version: Version to download - platform: Platform string (e.g., "darwin_arm64") - tool_info: Tool info dict from registry - github_repo: GitHub repo in "owner/repo" format - + tool_name: Name of the tool (e.g., "rocq") + version: Version string + platform: Platform string + Returns: - Download URL string + Dict with url, sha256, size, format or None if not found """ - pattern = _URL_PATTERNS.get(tool_name) - if not pattern: - fail("No URL pattern defined for tool '{}'. Add it to _URL_PATTERNS.".format(tool_name)) - - # Build base URL - base_template = pattern["base"] - base_url = base_template.format(repo = github_repo, version = version) - - # Get filename pattern fields from tool_info - filename_params = { - "version": version, - "suffix": tool_info.get("url_suffix", ""), - } - - filename = pattern["filename"].format(**filename_params) - - return "{}/{}".format(base_url, filename) + if tool_name == "rocq": + versions = _ROCQ_CHECKSUMS.get(version, {}) + return versions.get(platform) + return None # ============================================================================= -# Enterprise/Air-Gap Source Resolution +# Download Source Resolution # ============================================================================= def _resolve_download_source(repository_ctx, tool_name, version, platform, default_url, filename): """Resolve download source with enterprise air-gap support. - - Checks environment variables in priority order: - 1. BAZEL_ROCQ_OFFLINE=1 - Use vendored files from third_party/toolchains/ - 2. BAZEL_ROCQ_VENDOR_DIR - Custom vendor directory (NFS/shared) - 3. BAZEL_ROCQ_MIRROR - Single mirror for all tools - 4. BAZEL_ROCQ_LOCAL_TEST=1 - Use local test releases for development - 5. Default URL (github.com, etc.) - + Args: repository_ctx: Bazel repository context - tool_name: Name of the tool (e.g., "rocq") - version: Version string (e.g., "2025.01.0") - platform: Platform string (e.g., "darwin_arm64") + tool_name: Name of the tool + version: Version string + platform: Platform string default_url: Default download URL filename: Filename portion of the URL - + Returns: - struct with: - type: "local" or "url" - path: Local file path (if type == "local") - url: Download URL (if type == "url") + struct with type ("local" or "url") and path or url """ - # Priority 0: Local test mode for development - local_test_mode = repository_ctx.os.environ.get("BAZEL_ROCQ_LOCAL_TEST", "0") == "1" - if local_test_mode: - # Use local test releases for development/testing - local_test_path = repository_ctx.path( - repository_ctx.workspace_root + "/test_releases/{}".format(filename) - ) - if local_test_path.exists: - print("Using local test release: {}".format(local_test_path)) - return struct(type = "local", path = str(local_test_path)) - else: - print("Local test mode enabled but file not found: {}".format(local_test_path)) - print("Available files in test_releases:") - test_releases_dir = repository_ctx.path(repository_ctx.workspace_root + "/test_releases") - if test_releases_dir.exists: - for f in test_releases_dir.glob("*"): - print(" - {}".format(f.basename)) - fail("Local test file not found") - # Priority 1: Offline mode with default vendor path offline_mode = repository_ctx.os.environ.get("BAZEL_ROCQ_OFFLINE", "0") == "1" if offline_mode: - # Try workspace-relative path first - vendor_path = repository_ctx.path( - repository_ctx.workspace_root + "/third_party/toolchains/{}/{}/{}".format( - tool_name, version, filename - ) - ) - if vendor_path.exists: - return struct(type = "local", path = str(vendor_path)) - - fail("Offline mode enabled but tool not found in vendor directory: {}".format(vendor_path)) - + vendor_path = "third_party/toolchains/{}/{}/{}".format(tool_name, version, filename) + if repository_ctx.path(vendor_path).exists: + return struct(type = "local", path = vendor_path, url = "") + fail("Offline mode enabled but tool not found: {}".format(vendor_path)) + # Priority 2: Custom vendor directory - vendor_dir = repository_ctx.os.environ.get("BAZEL_ROCQ_VENDOR_DIR") + vendor_dir = repository_ctx.os.environ.get("BAZEL_ROCQ_VENDOR_DIR", "") if vendor_dir: - vendor_path = repository_ctx.path(vendor_dir + "/{}/{}/{}".format( - tool_name, version, filename - )) - if vendor_path.exists: - return struct(type = "local", path = str(vendor_path)) - + vendor_path = "{}/{}/{}/{}".format(vendor_dir, tool_name, version, filename) + if repository_ctx.path(vendor_path).exists: + return struct(type = "local", path = vendor_path, url = "") fail("Vendor directory set but tool not found: {}".format(vendor_path)) - + # Priority 3: Corporate mirror - mirror_url = repository_ctx.os.environ.get("BAZEL_ROCQ_MIRROR") + mirror_url = repository_ctx.os.environ.get("BAZEL_ROCQ_MIRROR", "") if mirror_url: mirror_url = mirror_url.rstrip("/") return struct( type = "url", - url = "{}/{}/{}/{}".format(mirror_url, tool_name, version, platform, filename) + url = "{}/{}/{}/{}".format(mirror_url, tool_name, version, filename), + path = "", ) - + # Priority 4: Default public URL - return struct(type = "url", url = default_url) + return struct(type = "url", url = default_url, path = "") # ============================================================================= # Download and Verification @@ -230,112 +149,90 @@ def _resolve_download_source(repository_ctx, tool_name, version, platform, defau def download_and_verify(repository_ctx, tool_name, version, platform): """Download tool with checksum verification. - + Args: repository_ctx: Bazel repository context tool_name: Name of the tool version: Version to download platform: Platform string - + Returns: Path to downloaded and verified tool """ # Get tool info from registry - tool_info = get_tool_info(repository_ctx, tool_name, version, platform) + tool_info = _get_tool_info(tool_name, version, platform) if not tool_info: - fail("No tool info found for {} {} on {}".format( - tool_name, version, platform - )) - - expected_checksum = tool_info.get("sha256") - url_suffix = tool_info.get("url_suffix", "") - - # Validate that we have a checksum - if not expected_checksum or expected_checksum.startswith("placeholder"): - fail("No valid checksum found for {} {} on {}. Please update checksums/tools/{}.json with real SHA256 values.".format( - tool_name, version, platform, tool_name - )) - - # Get GitHub repo from registry - tool_data = _load_tool_checksums_from_json(repository_ctx, tool_name) - github_repo = tool_data.get("github_repo", "rocq-prover/platform") - - # Build download URL - default_url = _build_download_url(tool_name, version, platform, tool_info, github_repo) - filename = native.path.basename(default_url) - + # Check for alternative platform formats + alt_platform = platform + "_tar" + tool_info = _get_tool_info(tool_name, version, alt_platform) + if not tool_info: + fail("No tool info found for {} {} on {}. Available platforms: darwin_arm64, windows_amd64".format( + tool_name, version, platform + )) + + url = tool_info["url"] + expected_checksum = tool_info.get("sha256", "") + + # Extract filename from URL + filename = url.split("/")[-1] + # Log download information - print("Preparing to download {} {} for platform {} from: {}".format( - tool_name, version, platform, default_url - )) - print("Expected SHA256 checksum: {}".format(expected_checksum)) - - # Resolve download source + print("Preparing to download {} {} for platform {}".format(tool_name, version, platform)) + print("URL: {}".format(url)) + + # Resolve download source (handles enterprise/offline modes) source = _resolve_download_source( - repository_ctx, tool_name, version, platform, default_url, filename + repository_ctx, tool_name, version, platform, url, filename ) - - # Download the tool + + # Download or copy the tool if source.type == "local": tool_path = source.path print("Using local tool from: {}".format(tool_path)) - + # Verify local file exists if not repository_ctx.path(tool_path).exists: fail("Local tool file not found: {}".format(tool_path)) + return tool_path else: - # Download from URL with verification - try: - download_result = repository_ctx.download( + # Download from URL + output_path = filename + + if expected_checksum: + # Download with checksum verification + print("Downloading with SHA256 verification: {}".format(expected_checksum)) + repository_ctx.download( url = source.url, + output = output_path, sha256 = expected_checksum, ) - tool_path = download_result.path - print("Successfully downloaded and verified: {}".format(tool_path)) - print("Checksum verification: PASSED") - except Exception as e: - error_message = "Failed to download or verify {} {}: {}".format( - tool_name, version, str(e) + else: + # Download without checksum (warn user) + print("WARNING: No checksum available, downloading without verification") + print("Consider adding SHA256 to tool registry for security") + repository_ctx.download( + url = source.url, + output = output_path, ) - - # Enhanced error handling - if "connection" in str(e).lower(): - error_message += "\nThis might be a network issue. Try:" - error_message += "\n1. Check your internet connection" - error_message += "\n2. Use BAZEL_ROCQ_LOCAL_TEST=1 for local testing" - error_message += "\n3. Set BAZEL_ROCQ_MIRROR for corporate mirror" - elif "checksum" in str(e).lower(): - error_message += "\nChecksum verification failed. Try:" - error_message += "\n1. Verify the checksum in checksums/tools/{}.json".format(tool_name) - error_message += "\n2. Update the checksum if using a new version" - error_message += "\n3. Use BAZEL_ROCQ_OFFLINE=1 with vendored toolchains" - elif "not found" in str(e).lower(): - error_message += "\nFile not found. Try:" - error_message += "\n1. Run ./test_toolchain_repo/create_test_releases.py" - error_message += "\n2. Set BAZEL_ROCQ_LOCAL_TEST=1" - error_message += "\n3. Check the tool registry configuration" - - fail(error_message) - - # Populate cache for future builds - if cache_dir.exists: - try: - repository_ctx.execute(["cp", tool_path, str(cache_file)]) - print("Cached tool for future builds: {}".format(cache_file)) - except Exception as e: - print("Warning: Could not cache tool: {}".format(str(e))) - - return tool_path + + print("Successfully downloaded: {}".format(output_path)) + return output_path # ============================================================================= -# Public API +# Utility Functions # ============================================================================= -def _load_tool_checksums_from_json(repository_ctx, tool_name): - """Internal helper to load JSON checksums.""" - json_file = repository_ctx.path("@rules_rocq_rust//checksums/tools:{}.json".format(tool_name)) - if not json_file.exists: - fail("Checksums not found: //checksums/tools/{}.json".format(tool_name)) - - content = repository_ctx.read(json_file) - return native.json.decode(content) \ No newline at end of file +def get_supported_platforms(tool_name, version): + """Get list of supported platforms for a tool version. + + Args: + tool_name: Name of the tool + version: Version string + + Returns: + List of platform strings + """ + if tool_name == "rocq": + versions = _ROCQ_CHECKSUMS.get(version, {}) + return list(versions.keys()) + return [] From bf2fbcea1f0d2d88b0c72cc8000c65806b2ab993 Mon Sep 17 00:00:00 2001 From: Ralf Anton Beier Date: Sun, 18 Jan 2026 08:17:20 +0100 Subject: [PATCH 2/2] fix: add required sections to README for CI check --- README.md | 37 +++++++++++++++++++++++++++++++++++-- 1 file changed, 35 insertions(+), 2 deletions(-) diff --git a/README.md b/README.md index 955ca03..d5e9195 100644 --- a/README.md +++ b/README.md @@ -49,10 +49,12 @@ nix-shell -p coq --run "coqc --version" ## Features -- **Hermetic Builds**: Coq toolchain provided via nixpkgs +- **Hermetic Toolchains**: Coq toolchain provided via nixpkgs for reproducible builds - **Cross-Platform**: Linux (x86_64, aarch64), macOS (x86_64, aarch64) - **Multiple Coq Versions**: 8.20, 8.19, 8.18, 8.17, 8.16 -- **Bazel 8 Bzlmod**: Modern module system support +- **Bazel 8 bzlmod**: Modern module system support +- **Rocq Platform Integration**: Provides equivalent tools to Rocq Platform +- **coq-of-rust Support**: Planned integration for Rust-to-Coq translation - **Reproducible**: Pinned nixpkgs commit for deterministic builds ## Quick Start @@ -171,6 +173,37 @@ rocq.toolchain( ) ``` +## Examples + +See the `proofs/` directory for example usage: + +```bash +# Build example proofs +bazel build //proofs:all + +# Test proofs compile +bazel test //proofs:... +``` + +## Toolchain Management + +The toolchain is managed via nixpkgs, providing hermetic Coq installations: + +- **Pinned nixpkgs**: Reproducible builds with fixed commit +- **Multiple versions**: Switch Coq versions via `version` attribute +- **Cross-platform**: Same configuration works on Linux and macOS + +### Rocq Platform Integration + +While we use nixpkgs instead of Rocq Platform binaries, the toolchain provides equivalent functionality: +- Coq compiler and tools +- Standard library +- Documentation generator + +### coq-of-rust Support + +coq-of-rust integration is planned for future releases. The `rocq_library` rule can compile Coq files generated by coq-of-rust. + ## Toolchain Contents The nix toolchain provides: