feat(etherscan): lookup solc build metadata (#1242)
* lookup solc version build meta * accept Version as an arg * add docs * remove redundant lifetime * rm regex
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@ -1285,6 +1285,7 @@ dependencies = [
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"ethers-core",
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"ethers-core",
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"ethers-solc",
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"ethers-solc",
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"reqwest",
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"reqwest",
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"semver",
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"serde",
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"serde",
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"serde-aux",
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"serde-aux",
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"serde_json",
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"serde_json",
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@ -22,6 +22,7 @@ serde_json = { version = "1.0.64", default-features = false }
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serde-aux = { version = "3.0.1", default-features = false }
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serde-aux = { version = "3.0.1", default-features = false }
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thiserror = "1.0.31"
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thiserror = "1.0.31"
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tracing = "0.1.34"
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tracing = "0.1.34"
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semver = "1.0.9"
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[dev-dependencies]
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[dev-dependencies]
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tempfile = "3.3.0"
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tempfile = "3.3.0"
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@ -33,4 +33,6 @@ pub enum EtherscanError {
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Unknown(String),
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Unknown(String),
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#[error("Missing field: {0}")]
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#[error("Missing field: {0}")]
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Builder(String),
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Builder(String),
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#[error("Missing solc version: {0}")]
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MissingSolcVersion(String),
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}
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}
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@ -24,6 +24,7 @@ pub mod errors;
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pub mod gas;
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pub mod gas;
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pub mod source_tree;
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pub mod source_tree;
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pub mod transaction;
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pub mod transaction;
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pub mod utils;
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pub(crate) type Result<T> = std::result::Result<T, EtherscanError>;
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pub(crate) type Result<T> = std::result::Result<T, EtherscanError>;
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@ -0,0 +1,56 @@
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use semver::Version;
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use crate::{EtherscanError, Result};
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static SOLC_BIN_LIST_URL: &str =
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"https://raw.githubusercontent.com/ethereum/solc-bin/gh-pages/bin/list.txt";
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/// Given the compiler version lookup the build metadata
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/// and return full semver
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/// i.e. `0.8.13` -> `0.8.13+commit.abaa5c0e`
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pub async fn lookup_compiler_version(version: &Version) -> Result<Version> {
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let response = reqwest::get(SOLC_BIN_LIST_URL).await?.text().await?;
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let version = format!("{}", version);
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let v = response
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.lines()
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.find(|l| !l.contains("nightly") && l.contains(&version))
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.map(|l| l.trim_start_matches("soljson-v").trim_end_matches(".js").to_owned())
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.ok_or(EtherscanError::MissingSolcVersion(version))?;
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Ok(v.parse().expect("failed to parse semver"))
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use crate::tests::run_at_least_duration;
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use semver::{BuildMetadata, Prerelease};
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use serial_test::serial;
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use std::time::Duration;
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#[tokio::test]
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#[serial]
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async fn can_lookup_compiler_version_build_metadata() {
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run_at_least_duration(Duration::from_millis(250), async {
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let v = Version::new(0, 8, 13);
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let version = lookup_compiler_version(&v).await.unwrap();
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assert_eq!(v.major, version.major);
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assert_eq!(v.minor, version.minor);
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assert_eq!(v.patch, version.patch);
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assert_ne!(version.build, BuildMetadata::EMPTY);
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assert_eq!(version.pre, Prerelease::EMPTY);
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})
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.await
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}
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#[tokio::test]
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#[serial]
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async fn errors_on_invalid_solc() {
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run_at_least_duration(Duration::from_millis(250), async {
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let v = Version::new(100, 0, 0);
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let err = lookup_compiler_version(&v).await.unwrap_err();
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assert!(matches!(err, EtherscanError::MissingSolcVersion(_)));
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})
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.await
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}
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}
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