640 lines
23 KiB
Rust
640 lines
23 KiB
Rust
use crate::{
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artifacts::{CompactContract, CompactContractRef, Contract, Settings},
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cache::SOLIDITY_FILES_CACHE_FILENAME,
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error::{Result, SolcError, SolcIoError},
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hh::HardhatArtifact,
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remappings::Remapping,
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utils, CompilerOutput, Source, Sources,
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};
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use ethers_core::{abi::Abi, types::Bytes};
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use serde::{de::DeserializeOwned, Deserialize, Serialize};
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use std::{
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collections::BTreeMap,
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convert::TryFrom,
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fmt,
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fmt::Formatter,
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fs, io,
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path::{Path, PathBuf},
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};
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/// Where to find all files or where to write them
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#[derive(Debug, Clone)]
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pub struct ProjectPathsConfig {
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/// Project root
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pub root: PathBuf,
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/// Path to the cache, if any
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pub cache: PathBuf,
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/// Where to store build artifacts
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pub artifacts: PathBuf,
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/// Where to find sources
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pub sources: PathBuf,
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/// Where to find tests
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pub tests: PathBuf,
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/// Where to look for libraries
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pub libraries: Vec<PathBuf>,
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/// The compiler remappings
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pub remappings: Vec<Remapping>,
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}
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impl ProjectPathsConfig {
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pub fn builder() -> ProjectPathsConfigBuilder {
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ProjectPathsConfigBuilder::default()
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}
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/// Creates a new hardhat style config instance which points to the canonicalized root path
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pub fn hardhat(root: impl AsRef<Path>) -> Result<Self> {
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PathStyle::HardHat.paths(root)
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}
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/// Creates a new dapptools style config instance which points to the canonicalized root path
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pub fn dapptools(root: impl AsRef<Path>) -> Result<Self> {
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PathStyle::Dapptools.paths(root)
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}
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/// Creates a new config with the current directory as the root
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pub fn current_hardhat() -> Result<Self> {
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Self::hardhat(std::env::current_dir().map_err(|err| SolcError::io(err, "."))?)
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}
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/// Creates a new config with the current directory as the root
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pub fn current_dapptools() -> Result<Self> {
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Self::dapptools(std::env::current_dir().map_err(|err| SolcError::io(err, "."))?)
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}
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/// Creates all configured dirs and files
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pub fn create_all(&self) -> std::result::Result<(), SolcIoError> {
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if let Some(parent) = self.cache.parent() {
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fs::create_dir_all(parent).map_err(|err| SolcIoError::new(err, parent))?;
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}
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fs::create_dir_all(&self.artifacts)
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.map_err(|err| SolcIoError::new(err, &self.artifacts))?;
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fs::create_dir_all(&self.sources).map_err(|err| SolcIoError::new(err, &self.sources))?;
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fs::create_dir_all(&self.tests).map_err(|err| SolcIoError::new(err, &self.tests))?;
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for lib in &self.libraries {
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fs::create_dir_all(lib).map_err(|err| SolcIoError::new(err, lib))?;
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}
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Ok(())
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}
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/// Returns all sources found under the project's configured `sources` path
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pub fn read_sources(&self) -> Result<Sources> {
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tracing::trace!("reading all sources from \"{}\"", self.sources.display());
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Ok(Source::read_all_from(&self.sources)?)
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}
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/// Returns all sources found under the project's configured `test` path
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pub fn read_tests(&self) -> Result<Sources> {
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tracing::trace!("reading all tests from \"{}\"", self.tests.display());
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Ok(Source::read_all_from(&self.tests)?)
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}
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/// Returns the combined set solidity file paths for `Self::sources` and `Self::tests`
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pub fn input_files(&self) -> Vec<PathBuf> {
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utils::source_files(&self.sources)
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.into_iter()
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.chain(utils::source_files(&self.tests))
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.collect()
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}
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/// Returns the combined set of `Self::read_sources` + `Self::read_tests`
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pub fn read_input_files(&self) -> Result<Sources> {
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Ok(Source::read_all_files(self.input_files())?)
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}
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/// Attempts to find the path to the real solidity file that's imported via the given `import`
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/// path by applying the configured remappings and checking the library dirs
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pub fn resolve_library_import(&self, import: &Path) -> Option<PathBuf> {
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// if the import path starts with the name of the remapping then we get the resolved path by
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// removing the name and adding the remainder to the path of the remapping
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if let Some(path) = self
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.remappings
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.iter()
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.find_map(|r| import.strip_prefix(&r.name).ok().map(|p| Path::new(&r.path).join(p)))
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{
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Some(self.root.join(path))
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} else {
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utils::resolve_library(&self.libraries, import)
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}
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}
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/// Attempts to autodetect the artifacts directory based on the given root path
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///
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/// Dapptools layout takes precedence over hardhat style.
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/// This will return:
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/// - `<root>/out` if it exists or `<root>/artifacts` does not exist,
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/// - `<root>/artifacts` if it exists and `<root>/out` does not exist.
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pub fn find_artifacts_dir(root: impl AsRef<Path>) -> PathBuf {
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utils::find_fave_or_alt_path(root, "out", "artifacts")
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}
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/// Attempts to autodetect the source directory based on the given root path
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///
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/// Dapptools layout takes precedence over hardhat style.
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/// This will return:
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/// - `<root>/src` if it exists or `<root>/contracts` does not exist,
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/// - `<root>/contracts` if it exists and `<root>/src` does not exist.
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pub fn find_source_dir(root: impl AsRef<Path>) -> PathBuf {
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utils::find_fave_or_alt_path(root, "src", "contracts")
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}
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/// Attempts to autodetect the lib directory based on the given root path
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///
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/// Dapptools layout takes precedence over hardhat style.
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/// This will return:
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/// - `<root>/lib` if it exists or `<root>/node_modules` does not exist,
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/// - `<root>/node_modules` if it exists and `<root>/lib` does not exist.
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pub fn find_libs(root: impl AsRef<Path>) -> Vec<PathBuf> {
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vec![utils::find_fave_or_alt_path(root, "lib", "node_modules")]
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}
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}
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impl fmt::Display for ProjectPathsConfig {
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fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
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writeln!(f, "root: {}", self.root.display())?;
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writeln!(f, "contracts: {}", self.sources.display())?;
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writeln!(f, "artifacts: {}", self.artifacts.display())?;
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writeln!(f, "tests: {}", self.tests.display())?;
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writeln!(f, "libs:")?;
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for lib in &self.libraries {
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writeln!(f, " {}", lib.display())?;
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}
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writeln!(f, "remappings:")?;
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for remapping in &self.remappings {
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writeln!(f, " {}", remapping)?;
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}
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Ok(())
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}
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}
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#[derive(Debug, Clone, Eq, PartialEq)]
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pub enum PathStyle {
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HardHat,
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Dapptools,
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}
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impl PathStyle {
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/// Convert into a `ProjectPathsConfig` given the root path and based on the styled
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pub fn paths(&self, root: impl AsRef<Path>) -> Result<ProjectPathsConfig> {
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let root = root.as_ref();
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let root = utils::canonicalize(root)?;
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Ok(match self {
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PathStyle::Dapptools => ProjectPathsConfig::builder()
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.sources(root.join("src"))
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.artifacts(root.join("out"))
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.lib(root.join("lib"))
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.remappings(Remapping::find_many(&root.join("lib")))
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.root(root)
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.build()?,
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PathStyle::HardHat => ProjectPathsConfig::builder()
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.sources(root.join("contracts"))
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.artifacts(root.join("artifacts"))
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.lib(root.join("node_modules"))
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.root(root)
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.build()?,
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})
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}
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}
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#[derive(Debug, Clone, Default)]
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pub struct ProjectPathsConfigBuilder {
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root: Option<PathBuf>,
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cache: Option<PathBuf>,
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artifacts: Option<PathBuf>,
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sources: Option<PathBuf>,
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tests: Option<PathBuf>,
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libraries: Option<Vec<PathBuf>>,
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remappings: Option<Vec<Remapping>>,
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}
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impl ProjectPathsConfigBuilder {
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pub fn root(mut self, root: impl Into<PathBuf>) -> Self {
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self.root = Some(canonicalized(root));
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self
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}
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pub fn cache(mut self, cache: impl Into<PathBuf>) -> Self {
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self.cache = Some(canonicalized(cache));
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self
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}
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pub fn artifacts(mut self, artifacts: impl Into<PathBuf>) -> Self {
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self.artifacts = Some(canonicalized(artifacts));
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self
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}
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pub fn sources(mut self, sources: impl Into<PathBuf>) -> Self {
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self.sources = Some(canonicalized(sources));
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self
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}
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pub fn tests(mut self, tests: impl Into<PathBuf>) -> Self {
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self.tests = Some(canonicalized(tests));
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self
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}
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/// Specifically disallow additional libraries
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pub fn no_libs(mut self) -> Self {
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self.libraries = Some(Vec::new());
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self
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}
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pub fn lib(mut self, lib: impl Into<PathBuf>) -> Self {
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self.libraries.get_or_insert_with(Vec::new).push(canonicalized(lib));
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self
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}
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pub fn libs(mut self, libs: impl IntoIterator<Item = impl Into<PathBuf>>) -> Self {
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let libraries = self.libraries.get_or_insert_with(Vec::new);
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for lib in libs.into_iter() {
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libraries.push(canonicalized(lib));
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}
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self
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}
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pub fn remapping(mut self, remapping: Remapping) -> Self {
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self.remappings.get_or_insert_with(Vec::new).push(remapping);
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self
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}
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pub fn remappings(mut self, remappings: impl IntoIterator<Item = Remapping>) -> Self {
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let our_remappings = self.remappings.get_or_insert_with(Vec::new);
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for remapping in remappings.into_iter() {
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our_remappings.push(remapping);
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}
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self
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}
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pub fn build_with_root(self, root: impl Into<PathBuf>) -> ProjectPathsConfig {
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let root = canonicalized(root);
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ProjectPathsConfig {
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cache: self
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.cache
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.unwrap_or_else(|| root.join("cache").join(SOLIDITY_FILES_CACHE_FILENAME)),
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artifacts: self
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.artifacts
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.unwrap_or_else(|| ProjectPathsConfig::find_artifacts_dir(&root)),
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sources: self.sources.unwrap_or_else(|| ProjectPathsConfig::find_source_dir(&root)),
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tests: self.tests.unwrap_or_else(|| root.join("tests")),
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libraries: self.libraries.unwrap_or_else(|| ProjectPathsConfig::find_libs(&root)),
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remappings: self.remappings.unwrap_or_default(),
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root,
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}
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}
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pub fn build(self) -> std::result::Result<ProjectPathsConfig, SolcIoError> {
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let root = self
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.root
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.clone()
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.map(Ok)
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.unwrap_or_else(std::env::current_dir)
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.map_err(|err| SolcIoError::new(err, "."))?;
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Ok(self.build_with_root(root))
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}
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}
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/// Returns the same path config but with canonicalized paths.
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///
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/// This will take care of potential symbolic linked directories.
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/// For example, the tempdir library is creating directories hosted under `/var/`, which in OS X
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/// is a symbolic link to `/private/var/`. So if when we try to resolve imports and a path is
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/// rooted in a symbolic directory we might end up with different paths for the same file, like
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/// `private/var/.../Dapp.sol` and `/var/.../Dapp.sol`
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///
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/// This canonicalizes all the paths but does not treat non existing dirs as an error
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fn canonicalized(path: impl Into<PathBuf>) -> PathBuf {
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let path = path.into();
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utils::canonicalize(&path).unwrap_or(path)
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}
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/// The config to use when compiling the contracts
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#[derive(Clone, Debug, Eq, PartialEq, Serialize, Deserialize)]
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pub struct SolcConfig {
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/// How the file was compiled
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pub settings: Settings,
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}
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impl SolcConfig {
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/// # Example
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///
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/// Autodetect solc version and default settings
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///
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/// ```rust
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/// use ethers_solc::SolcConfig;
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/// let config = SolcConfig::builder().build().unwrap();
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/// ```
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pub fn builder() -> SolcConfigBuilder {
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SolcConfigBuilder::default()
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}
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}
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#[derive(Default)]
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pub struct SolcConfigBuilder {
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settings: Option<Settings>,
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}
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impl SolcConfigBuilder {
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pub fn settings(mut self, settings: Settings) -> Self {
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self.settings = Some(settings);
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self
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}
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/// Creates the solc config
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///
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/// If no solc version is configured then it will be determined by calling `solc --version`.
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pub fn build(self) -> Result<SolcConfig> {
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let Self { settings } = self;
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Ok(SolcConfig { settings: settings.unwrap_or_default() })
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}
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}
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pub type Artifacts<T> = BTreeMap<String, BTreeMap<String, T>>;
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pub trait Artifact {
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/// Returns the artifact's `Abi` and bytecode
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fn into_inner(self) -> (Option<Abi>, Option<Bytes>);
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/// Turns the artifact into a container type for abi, bytecode and deployed bytecode
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fn into_compact_contract(self) -> CompactContract;
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/// Returns the contents of this type as a single tuple of abi, bytecode and deployed bytecode
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fn into_parts(self) -> (Option<Abi>, Option<Bytes>, Option<Bytes>);
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}
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impl<T: Into<CompactContract>> Artifact for T {
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fn into_inner(self) -> (Option<Abi>, Option<Bytes>) {
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let artifact = self.into_compact_contract();
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(artifact.abi, artifact.bin.and_then(|bin| bin.into_bytes()))
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}
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fn into_compact_contract(self) -> CompactContract {
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self.into()
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}
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fn into_parts(self) -> (Option<Abi>, Option<Bytes>, Option<Bytes>) {
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self.into_compact_contract().into_parts()
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}
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}
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pub trait ArtifactOutput {
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/// How Artifacts are stored
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type Artifact: Artifact + DeserializeOwned;
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/// Handle the compiler output.
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fn on_output(output: &CompilerOutput, layout: &ProjectPathsConfig) -> Result<()>;
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/// Returns the file name for the contract's artifact
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fn output_file_name(name: impl AsRef<str>) -> PathBuf {
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format!("{}.json", name.as_ref()).into()
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}
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/// Returns the path to the contract's artifact location based on the contract's file and name
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///
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/// This returns `contract.sol/contract.json` by default
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fn output_file(contract_file: impl AsRef<Path>, name: impl AsRef<str>) -> PathBuf {
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let name = name.as_ref();
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contract_file
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.as_ref()
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.file_name()
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.map(Path::new)
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.map(|p| p.join(Self::output_file_name(name)))
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.unwrap_or_else(|| Self::output_file_name(name))
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}
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/// The inverse of `contract_file_name`
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///
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/// Expected to return the solidity contract's name derived from the file path
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/// `sources/Greeter.sol` -> `Greeter`
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fn contract_name(file: impl AsRef<Path>) -> Option<String> {
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file.as_ref().file_stem().and_then(|s| s.to_str().map(|s| s.to_string()))
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}
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/// Whether the corresponding artifact of the given contract file and name exists
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fn output_exists(
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contract_file: impl AsRef<Path>,
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name: impl AsRef<str>,
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root: impl AsRef<Path>,
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) -> bool {
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root.as_ref().join(Self::output_file(contract_file, name)).exists()
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}
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fn read_cached_artifact(path: impl AsRef<Path>) -> Result<Self::Artifact> {
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let path = path.as_ref();
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let file = fs::File::open(path).map_err(|err| SolcError::io(err, path))?;
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let file = io::BufReader::new(file);
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Ok(serde_json::from_reader(file)?)
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}
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/// Read the cached artifacts from disk
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fn read_cached_artifacts<T, I>(files: I) -> Result<BTreeMap<PathBuf, Self::Artifact>>
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where
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I: IntoIterator<Item = T>,
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T: Into<PathBuf>,
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{
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let mut artifacts = BTreeMap::default();
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for path in files.into_iter() {
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let path = path.into();
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let artifact = Self::read_cached_artifact(&path)?;
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artifacts.insert(path, artifact);
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}
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Ok(artifacts)
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}
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/// Convert a contract to the artifact type
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fn contract_to_artifact(file: &str, name: &str, contract: Contract) -> Self::Artifact;
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/// Convert the compiler output into a set of artifacts
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fn output_to_artifacts(output: CompilerOutput) -> Artifacts<Self::Artifact> {
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output
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.contracts
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.into_iter()
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.map(|(file, contracts)| {
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let contracts = contracts
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.into_iter()
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.map(|(name, c)| {
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let contract = Self::contract_to_artifact(&file, &name, c);
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(name, contract)
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})
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.collect();
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(file, contracts)
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})
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.collect()
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}
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}
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/// An Artifacts implementation that uses a compact representation
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///
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/// Creates a single json artifact with
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/// ```json
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/// {
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/// "abi": [],
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/// "bin": "...",
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/// "runtime-bin": "..."
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/// }
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/// ```
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#[derive(Debug, Copy, Clone, Eq, PartialEq)]
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pub struct MinimalCombinedArtifacts;
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impl ArtifactOutput for MinimalCombinedArtifacts {
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type Artifact = CompactContract;
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fn on_output(output: &CompilerOutput, layout: &ProjectPathsConfig) -> Result<()> {
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fs::create_dir_all(&layout.artifacts)
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.map_err(|err| SolcError::msg(format!("Failed to create artifacts dir: {}", err)))?;
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for (file, contracts) in output.contracts.iter() {
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for (name, contract) in contracts {
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let artifact = Self::output_file(file, name);
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let file = layout.artifacts.join(artifact);
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if let Some(parent) = file.parent() {
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fs::create_dir_all(parent).map_err(|err| {
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SolcError::msg(format!(
|
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"Failed to create artifact parent folder \"{}\": {}",
|
|
parent.display(),
|
|
err
|
|
))
|
|
})?;
|
|
}
|
|
let min = CompactContractRef::from(contract);
|
|
fs::write(&file, serde_json::to_vec_pretty(&min)?)
|
|
.map_err(|err| SolcError::io(err, file))?
|
|
}
|
|
}
|
|
Ok(())
|
|
}
|
|
|
|
fn contract_to_artifact(_file: &str, _name: &str, contract: Contract) -> Self::Artifact {
|
|
Self::Artifact::from(contract)
|
|
}
|
|
}
|
|
|
|
/// An Artifacts handler implementation that works the same as `MinimalCombinedArtifacts` but also
|
|
/// supports reading hardhat artifacts if an initial attempt to deserialize an artifact failed
|
|
#[derive(Debug, Copy, Clone, Eq, PartialEq)]
|
|
pub struct MinimalCombinedArtifactsHardhatFallback;
|
|
|
|
impl ArtifactOutput for MinimalCombinedArtifactsHardhatFallback {
|
|
type Artifact = CompactContract;
|
|
|
|
fn on_output(output: &CompilerOutput, layout: &ProjectPathsConfig) -> Result<()> {
|
|
MinimalCombinedArtifacts::on_output(output, layout)
|
|
}
|
|
|
|
fn read_cached_artifact(path: impl AsRef<Path>) -> Result<Self::Artifact> {
|
|
let path = path.as_ref();
|
|
let content = fs::read_to_string(path).map_err(|err| SolcError::io(err, path))?;
|
|
if let Ok(a) = serde_json::from_str(&content) {
|
|
Ok(a)
|
|
} else {
|
|
tracing::error!("Failed to deserialize compact artifact");
|
|
tracing::trace!("Fallback to hardhat artifact deserialization");
|
|
let artifact = serde_json::from_str::<HardhatArtifact>(&content)?;
|
|
tracing::trace!("successfully deserialized hardhat artifact");
|
|
Ok(artifact.into_compact_contract())
|
|
}
|
|
}
|
|
|
|
fn contract_to_artifact(file: &str, name: &str, contract: Contract) -> Self::Artifact {
|
|
MinimalCombinedArtifacts::contract_to_artifact(file, name, contract)
|
|
}
|
|
}
|
|
|
|
/// Helper struct for serializing `--allow-paths` arguments to Solc
|
|
///
|
|
/// From the [Solc docs](https://docs.soliditylang.org/en/v0.8.9/using-the-compiler.html#base-path-and-import-remapping):
|
|
/// For security reasons the compiler has restrictions on what directories it can access.
|
|
/// Directories of source files specified on the command line and target paths of
|
|
/// remappings are automatically allowed to be accessed by the file reader,
|
|
/// but everything else is rejected by default. Additional paths (and their subdirectories)
|
|
/// can be allowed via the --allow-paths /sample/path,/another/sample/path switch.
|
|
/// Everything inside the path specified via --base-path is always allowed.
|
|
#[derive(Clone, Debug, Default)]
|
|
pub struct AllowedLibPaths(pub(crate) Vec<PathBuf>);
|
|
|
|
impl fmt::Display for AllowedLibPaths {
|
|
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
|
|
let lib_paths = self
|
|
.0
|
|
.iter()
|
|
.filter(|path| path.exists())
|
|
.map(|path| format!("{}", path.display()))
|
|
.collect::<Vec<_>>()
|
|
.join(",");
|
|
write!(f, "{}", lib_paths)
|
|
}
|
|
}
|
|
|
|
impl<T: Into<PathBuf>> TryFrom<Vec<T>> for AllowedLibPaths {
|
|
type Error = SolcIoError;
|
|
|
|
fn try_from(libs: Vec<T>) -> std::result::Result<Self, Self::Error> {
|
|
let libs = libs
|
|
.into_iter()
|
|
.map(|lib| {
|
|
let path: PathBuf = lib.into();
|
|
let lib = utils::canonicalize(&path)?;
|
|
Ok(lib)
|
|
})
|
|
.collect::<std::result::Result<Vec<_>, _>>()?;
|
|
Ok(AllowedLibPaths(libs))
|
|
}
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::*;
|
|
|
|
#[test]
|
|
fn can_autodetect_dirs() {
|
|
let root = tempdir::TempDir::new("root").unwrap();
|
|
let out = root.path().join("out");
|
|
let artifacts = root.path().join("artifacts");
|
|
let contracts = root.path().join("contracts");
|
|
let src = root.path().join("src");
|
|
let lib = root.path().join("lib");
|
|
let node_modules = root.path().join("node_modules");
|
|
|
|
let root = root.path();
|
|
assert_eq!(ProjectPathsConfig::find_source_dir(root), src,);
|
|
std::fs::File::create(&contracts).unwrap();
|
|
assert_eq!(ProjectPathsConfig::find_source_dir(root), contracts,);
|
|
assert_eq!(
|
|
ProjectPathsConfig::builder().build_with_root(&root).sources,
|
|
canonicalized(contracts),
|
|
);
|
|
std::fs::File::create(&src).unwrap();
|
|
assert_eq!(ProjectPathsConfig::find_source_dir(root), src,);
|
|
assert_eq!(
|
|
ProjectPathsConfig::builder().build_with_root(&root).sources,
|
|
canonicalized(src),
|
|
);
|
|
|
|
assert_eq!(ProjectPathsConfig::find_artifacts_dir(root), out,);
|
|
std::fs::File::create(&artifacts).unwrap();
|
|
assert_eq!(ProjectPathsConfig::find_artifacts_dir(root), artifacts,);
|
|
assert_eq!(
|
|
ProjectPathsConfig::builder().build_with_root(&root).artifacts,
|
|
canonicalized(artifacts),
|
|
);
|
|
std::fs::File::create(&out).unwrap();
|
|
assert_eq!(ProjectPathsConfig::find_artifacts_dir(root), out,);
|
|
assert_eq!(
|
|
ProjectPathsConfig::builder().build_with_root(&root).artifacts,
|
|
canonicalized(out),
|
|
);
|
|
|
|
assert_eq!(ProjectPathsConfig::find_libs(root), vec![lib.clone()],);
|
|
std::fs::File::create(&node_modules).unwrap();
|
|
assert_eq!(ProjectPathsConfig::find_libs(root), vec![node_modules.clone()],);
|
|
assert_eq!(
|
|
ProjectPathsConfig::builder().build_with_root(&root).libraries,
|
|
vec![canonicalized(node_modules.clone())],
|
|
);
|
|
std::fs::File::create(&lib).unwrap();
|
|
assert_eq!(ProjectPathsConfig::find_libs(root), vec![lib.clone()],);
|
|
assert_eq!(
|
|
ProjectPathsConfig::builder().build_with_root(&root).libraries,
|
|
vec![canonicalized(lib.clone())],
|
|
);
|
|
}
|
|
}
|