diff --git a/ethers-solc/src/artifacts/serde_helpers.rs b/ethers-solc/src/artifacts/serde_helpers.rs index d935e1a9..0e38ee3f 100644 --- a/ethers-solc/src/artifacts/serde_helpers.rs +++ b/ethers-solc/src/artifacts/serde_helpers.rs @@ -78,7 +78,7 @@ pub mod json_string_opt { pub mod empty_json_object_opt { use serde::{ de::{self, DeserializeOwned}, - ser, Deserialize, Deserializer, Serialize, Serializer, + Deserialize, Deserializer, Serialize, Serializer, }; pub fn serialize(value: &Option, serializer: S) -> Result @@ -87,8 +87,7 @@ pub mod empty_json_object_opt { T: Serialize, { if let Some(value) = value { - let value = serde_json::to_string(value).map_err(ser::Error::custom)?; - serializer.serialize_str(&value) + value.serialize(serializer) } else { let empty = serde_json::Value::Object(Default::default()); serde_json::Value::serialize(&empty, serializer) diff --git a/ethers-solc/src/buildinfo.rs b/ethers-solc/src/buildinfo.rs new file mode 100644 index 00000000..97507872 --- /dev/null +++ b/ethers-solc/src/buildinfo.rs @@ -0,0 +1,114 @@ +//! Represents an entire build + +use crate::{utils, CompilerInput, CompilerOutput, SolcError}; +use md5::Digest; +use semver::Version; +use serde::{ser::SerializeStruct, Deserialize, Serialize, Serializer}; +use std::{cell::RefCell, path::Path, rc::Rc}; + +pub const ETHERS_FORMAT_VERSION: &str = "ethers-rs-sol-build-info-1"; + +// A hardhat compatible build info representation +#[derive(Serialize, Deserialize)] +#[serde(rename_all = "camelCase")] +pub struct BuildInfo { + pub id: String, + #[serde(rename = "_format")] + pub format: String, + pub solc_version: Version, + pub solc_long_version: Version, + pub input: CompilerInput, + pub output: CompilerOutput, +} + +impl BuildInfo { + /// Deserializes the `BuildInfo` object from the given file + pub fn read(path: impl AsRef) -> Result { + utils::read_json_file(path) + } +} + +/// Represents `BuildInfo` object +#[derive(Debug, Clone, Eq, PartialEq)] +pub struct RawBuildInfo { + /// The hash that identifies the BuildInfo + pub id: String, + /// serialized `BuildInfo` json + pub build_info: String, +} + +// === impl RawBuildInfo === + +impl RawBuildInfo { + /// Serializes a `BuildInfo` object + pub fn new( + input: &CompilerInput, + output: &CompilerOutput, + version: &Version, + ) -> serde_json::Result { + let mut hasher = md5::Md5::new(); + let w = BuildInfoWriter { buf: Rc::new(RefCell::new(Vec::with_capacity(128))) }; + let mut buf = w.clone(); + let mut serializer = serde_json::Serializer::pretty(&mut buf); + let mut s = serializer.serialize_struct("BuildInfo", 6)?; + s.serialize_field("_format", ÐERS_FORMAT_VERSION)?; + let solc_short = format!("{}.{}.{}", version.major, version.minor, version.patch); + s.serialize_field("solcVersion", &solc_short)?; + s.serialize_field("solcLongVersion", &version)?; + s.serialize_field("input", input)?; + + // create the hash for `{_format,solcVersion,solcLongVersion,input}` + // N.B. this is not exactly the same as hashing the json representation of these values but + // the must efficient one + hasher.update(&*w.buf.borrow()); + let result = hasher.finalize(); + let id = hex::encode(result); + + s.serialize_field("id", &id)?; + s.serialize_field("output", output)?; + s.end()?; + + drop(buf); + + let build_info = unsafe { + // serde_json does not emit non UTF8 + String::from_utf8_unchecked(w.buf.take()) + }; + + Ok(RawBuildInfo { id, build_info }) + } +} + +#[derive(Clone)] +struct BuildInfoWriter { + buf: Rc>>, +} + +impl std::io::Write for BuildInfoWriter { + fn write(&mut self, buf: &[u8]) -> std::io::Result { + self.buf.borrow_mut().write(buf) + } + + fn flush(&mut self) -> std::io::Result<()> { + self.buf.borrow_mut().flush() + } +} + +#[cfg(test)] +mod tests { + use super::*; + use crate::Source; + use std::{collections::BTreeMap, path::PathBuf}; + + #[test] + fn build_info_serde() { + let inputs = CompilerInput::with_sources(BTreeMap::from([( + PathBuf::from("input.sol"), + Source { content: "".to_string() }, + )])); + let output = CompilerOutput::default(); + let v: Version = "0.8.4+commit.c7e474f2".parse().unwrap(); + let raw_info = RawBuildInfo::new(&inputs[0], &output, &v).unwrap(); + let _info: BuildInfo = serde_json::from_str(&raw_info.build_info).unwrap(); + } +} diff --git a/ethers-solc/src/compile/output/mod.rs b/ethers-solc/src/compile/output/mod.rs index 508ffb0e..cce70338 100644 --- a/ethers-solc/src/compile/output/mod.rs +++ b/ethers-solc/src/compile/output/mod.rs @@ -5,12 +5,14 @@ use crate::{ contract::{CompactContractBytecode, CompactContractRef, Contract}, Error, }, + buildinfo::RawBuildInfo, sources::{VersionedSourceFile, VersionedSourceFiles}, - ArtifactId, ArtifactOutput, Artifacts, CompilerOutput, ConfigurableArtifacts, + ArtifactId, ArtifactOutput, Artifacts, CompilerOutput, ConfigurableArtifacts, SolcIoError, }; use contracts::{VersionedContract, VersionedContracts}; use semver::Version; use std::{collections::BTreeMap, fmt, path::Path}; +use tracing::trace; pub mod contracts; pub mod sources; @@ -243,6 +245,8 @@ pub struct AggregatedCompilerOutput { pub sources: VersionedSourceFiles, /// All compiled contracts combined with the solc version used to compile them pub contracts: VersionedContracts, + // All the `BuildInfo`s of solc invocations. + pub build_infos: BTreeMap, } impl AggregatedCompilerOutput { @@ -302,6 +306,29 @@ impl AggregatedCompilerOutput { } } + /// Creates all `BuildInfo` files in the given `build_info_dir` + /// + /// There can be multiple `BuildInfo`, since we support multiple versions. + /// + /// The created files have the md5 hash `{_format,solcVersion,solcLongVersion,input}` as their + /// file name + pub fn write_build_infos(&self, build_info_dir: impl AsRef) -> Result<(), SolcIoError> { + if self.build_infos.is_empty() { + return Ok(()) + } + let build_info_dir = build_info_dir.as_ref(); + std::fs::create_dir_all(build_info_dir) + .map_err(|err| SolcIoError::new(err, build_info_dir))?; + for (version, build_info) in &self.build_infos { + trace!("writing build info file for solc {}", version); + let file_name = format!("{}.json", build_info.id); + let file = build_info_dir.join(file_name); + std::fs::write(&file, &build_info.build_info) + .map_err(|err| SolcIoError::new(err, file))?; + } + Ok(()) + } + /// Finds the _first_ contract with the given name /// /// # Example diff --git a/ethers-solc/src/compile/project.rs b/ethers-solc/src/compile/project.rs index 11273f99..5c6e8769 100644 --- a/ethers-solc/src/compile/project.rs +++ b/ethers-solc/src/compile/project.rs @@ -104,6 +104,7 @@ use crate::{ artifact_output::Artifacts, artifacts::{Settings, VersionedFilteredSources, VersionedSources}, + buildinfo::RawBuildInfo, cache::ArtifactsCache, error::Result, filter::SparseOutputFilter, @@ -240,11 +241,13 @@ impl<'a, T: ArtifactOutput> PreprocessedState<'a, T> { /// advance to the next state by compiling all sources fn compile(self) -> Result> { let PreprocessedState { sources, cache, sparse_output } = self; + let project = cache.project(); let mut output = sources.compile( - &cache.project().solc_config.settings, - &cache.project().paths, + &project.solc_config.settings, + &project.paths, sparse_output, cache.graph(), + project.build_info, )?; // source paths get stripped before handing them over to solc, so solc never uses absolute @@ -288,11 +291,16 @@ impl<'a, T: ArtifactOutput> CompiledState<'a, T> { output.sources.len() ); // this emits the artifacts via the project's artifacts handler - project.artifacts_handler().on_output( + let artifacts = project.artifacts_handler().on_output( &output.contracts, &output.sources, &project.paths, - )? + )?; + + // emits all the build infos, if they exist + output.write_build_infos(project.build_info_path())?; + + artifacts }; Ok(ArtifactsState { output, cache, compiled_artifacts }) @@ -391,13 +399,14 @@ impl FilteredCompilerSources { paths: &ProjectPathsConfig, sparse_output: SparseOutputFilter, graph: &GraphEdges, + create_build_info: bool, ) -> Result { match self { FilteredCompilerSources::Sequential(input) => { - compile_sequential(input, settings, paths, sparse_output, graph) + compile_sequential(input, settings, paths, sparse_output, graph, create_build_info) } FilteredCompilerSources::Parallel(input, j) => { - compile_parallel(input, j, settings, paths, sparse_output, graph) + compile_parallel(input, j, settings, paths, sparse_output, graph, create_build_info) } } } @@ -419,6 +428,7 @@ fn compile_sequential( paths: &ProjectPathsConfig, sparse_output: SparseOutputFilter, graph: &GraphEdges, + create_build_info: bool, ) -> Result { let mut aggregated = AggregatedCompilerOutput::default(); tracing::trace!("compiling {} jobs sequentially", input.len()); @@ -484,6 +494,13 @@ fn compile_sequential( report::solc_success(&solc, &version, &output, &start.elapsed()); tracing::trace!("compiled input, output has error: {}", output.has_error()); tracing::trace!("received compiler output: {:?}", output.contracts.keys()); + + // if configured also create the build info + if create_build_info { + let build_info = RawBuildInfo::new(&input, &output, &version)?; + aggregated.build_infos.insert(version.clone(), build_info); + } + aggregated.extend(version.clone(), output); } } @@ -498,6 +515,7 @@ fn compile_parallel( paths: &ProjectPathsConfig, sparse_output: SparseOutputFilter, graph: &GraphEdges, + create_build_info: bool, ) -> Result { debug_assert!(num_jobs > 1); tracing::trace!( @@ -580,14 +598,21 @@ fn compile_parallel( report::solc_spawn(&solc, &version, &input, &actually_dirty); solc.compile(&input).map(move |output| { report::solc_success(&solc, &version, &output, &start.elapsed()); - (version, output) + (version, input, output) }) }) .collect::>>() })?; let mut aggregated = AggregatedCompilerOutput::default(); - aggregated.extend_all(outputs); + for (version, input, output) in outputs { + // if configured also create the build info + if create_build_info { + let build_info = RawBuildInfo::new(&input, &output, &version)?; + aggregated.build_infos.insert(version.clone(), build_info); + } + aggregated.extend(version, output); + } Ok(aggregated) } diff --git a/ethers-solc/src/lib.rs b/ethers-solc/src/lib.rs index 58e4dd8a..e51cb441 100644 --- a/ethers-solc/src/lib.rs +++ b/ethers-solc/src/lib.rs @@ -6,6 +6,7 @@ pub use artifacts::{CompilerInput, CompilerOutput, EvmVersion}; use std::collections::{BTreeMap, HashSet}; mod artifact_output; +pub mod buildinfo; pub mod cache; pub mod hh; pub use artifact_output::*; @@ -59,6 +60,8 @@ pub struct Project { pub solc_config: SolcConfig, /// Whether caching is enabled pub cached: bool, + /// Whether to output build information with each solc call. + pub build_info: bool, /// Whether writing artifacts to disk is enabled pub no_artifacts: bool, /// Whether writing artifacts to disk is enabled @@ -121,6 +124,11 @@ impl Project { &self.paths.cache } + /// Returns the path to the `build-info` directory nested in the artifacts dir + pub fn build_info_path(&self) -> PathBuf { + self.paths.artifacts.join("build-info") + } + /// Returns the root directory of the project pub fn root(&self) -> &PathBuf { &self.paths.root @@ -513,6 +521,8 @@ pub struct ProjectBuilder { solc_config: Option, /// Whether caching is enabled, default is true. cached: bool, + /// Whether to output build information with each solc call. + build_info: bool, /// Whether writing artifacts to disk is enabled, default is true. no_artifacts: bool, /// Whether automatic solc version detection is enabled @@ -536,6 +546,7 @@ impl ProjectBuilder { solc: None, solc_config: None, cached: true, + build_info: false, no_artifacts: false, auto_detect: true, offline: false, @@ -591,6 +602,13 @@ impl ProjectBuilder { self } + /// Sets the build info value + #[must_use] + pub fn set_build_info(mut self, build_info: bool) -> Self { + self.build_info = build_info; + self + } + /// Activates offline mode /// /// Prevents network possible access to download/check solc installs @@ -663,6 +681,7 @@ impl ProjectBuilder { allowed_paths, solc_jobs, offline, + build_info, .. } = self; ProjectBuilder { @@ -677,6 +696,7 @@ impl ProjectBuilder { ignored_error_codes, allowed_paths, solc_jobs, + build_info, } } @@ -713,6 +733,7 @@ impl ProjectBuilder { mut allowed_paths, solc_jobs, offline, + build_info, } = self; let paths = paths.map(Ok).unwrap_or_else(ProjectPathsConfig::current_hardhat)?; @@ -730,6 +751,7 @@ impl ProjectBuilder { solc, solc_config, cached, + build_info, no_artifacts, auto_detect, artifacts, diff --git a/ethers-solc/tests/project.rs b/ethers-solc/tests/project.rs index 30309cc5..bb4c9ff8 100644 --- a/ethers-solc/tests/project.rs +++ b/ethers-solc/tests/project.rs @@ -13,6 +13,7 @@ use ethers_solc::{ BytecodeHash, DevDoc, ErrorDoc, EventDoc, Libraries, MethodDoc, ModelCheckerEngine::CHC, ModelCheckerSettings, UserDoc, UserDocNotice, }, + buildinfo::BuildInfo, cache::{SolFilesCache, SOLIDITY_FILES_CACHE_FILENAME}, project_util::*, remappings::Remapping, @@ -311,6 +312,45 @@ fn can_compile_dapp_detect_changes_in_sources() { } } +#[test] +fn can_emit_build_info() { + let mut project = TempProject::dapptools().unwrap(); + project.project_mut().build_info = true; + project + .add_source( + "A", + r#" +pragma solidity ^0.8.10; +import "./B.sol"; +contract A { } +"#, + ) + .unwrap(); + + project + .add_source( + "B", + r#" +pragma solidity ^0.8.10; +contract B { } +"#, + ) + .unwrap(); + + let compiled = project.compile().unwrap(); + assert!(!compiled.has_compiler_errors()); + + let info_dir = project.project().build_info_path(); + assert!(info_dir.exists()); + + let mut build_info_count = 0; + for entry in fs::read_dir(info_dir).unwrap() { + let _info = BuildInfo::read(entry.unwrap().path()).unwrap(); + build_info_count += 1; + } + assert_eq!(build_info_count, 1); +} + #[test] fn can_compile_dapp_sample_with_cache() { let tmp_dir = tempfile::tempdir().unwrap();