From 36ea69b50f61e840ef1e4bec1abd17d4851445c3 Mon Sep 17 00:00:00 2001
From: Pavlo Khrystenko <45178695+pkhry@users.noreply.github.com>
Date: Wed, 19 Mar 2025 16:07:48 +0100
Subject: [PATCH] Add --supported-solc-versions CLI command (#260)

### Description

Adds `--supported-solc-versions` cli command to return a semver range of
supported `solc` versions.
Is a hack until #162 is implemented.

---------

Co-authored-by: xermicus <cyrill@parity.io>
---
 CHANGELOG.md                            |  1 +
 crates/solidity/src/lib.rs              |  3 +++
 crates/solidity/src/resolc/arguments.rs | 10 ++++++++++
 crates/solidity/src/resolc/main.rs      | 10 ++++++++++
 4 files changed, 24 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 42ef1a1..c58a162 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@ Supported `polkadot-sdk` rev:`c29e72a8628835e34deb6aa7db9a78a2e4eabcee`
 
 ### Added
 - Support for solc v0.8.29
+- `--supported-solc-versions` for `resolc` binary to return a `semver` range of supported `solc` versions.
 
 ### Changed
 - Runner `resolc` using webkit is no longer supported.
diff --git a/crates/solidity/src/lib.rs b/crates/solidity/src/lib.rs
index 7214120..24776e2 100644
--- a/crates/solidity/src/lib.rs
+++ b/crates/solidity/src/lib.rs
@@ -44,8 +44,11 @@ pub use self::solc::standard_json::output::contract::Contract as SolcStandardJso
 pub use self::solc::standard_json::output::Output as SolcStandardJsonOutput;
 pub use self::solc::version::Version as SolcVersion;
 pub use self::solc::Compiler;
+pub use self::solc::FIRST_SUPPORTED_VERSION as SolcFirstSupportedVersion;
+pub use self::solc::LAST_SUPPORTED_VERSION as SolcLastSupportedVersion;
 pub use self::version::Version as ResolcVersion;
 pub use self::warning::Warning;
+
 #[cfg(not(target_os = "emscripten"))]
 pub mod test_utils;
 pub mod tests;
diff --git a/crates/solidity/src/resolc/arguments.rs b/crates/solidity/src/resolc/arguments.rs
index e0e9e92..c777b6b 100644
--- a/crates/solidity/src/resolc/arguments.rs
+++ b/crates/solidity/src/resolc/arguments.rs
@@ -19,6 +19,10 @@ pub struct Arguments {
     #[arg(long = "version")]
     pub version: bool,
 
+    /// Print supported `solc` versions and exit.
+    #[arg(long = "supported-solc-versions")]
+    pub supported_solc_versions: bool,
+
     /// Print the licence and exit.
     #[arg(long = "license")]
     pub license: bool,
@@ -171,6 +175,12 @@ impl Arguments {
             anyhow::bail!("No other options are allowed while getting the compiler version.");
         }
 
+        if self.supported_solc_versions && std::env::args().count() > 2 {
+            anyhow::bail!(
+                "No other options are allowed while getting the supported `solc` versions."
+            );
+        }
+
         #[cfg(debug_assertions)]
         if self.recursive_process_input.is_some() && !self.recursive_process {
             anyhow::bail!("--process-input can be only used when --recursive-process is given");
diff --git a/crates/solidity/src/resolc/main.rs b/crates/solidity/src/resolc/main.rs
index b308771..5e133f6 100644
--- a/crates/solidity/src/resolc/main.rs
+++ b/crates/solidity/src/resolc/main.rs
@@ -41,6 +41,16 @@ fn main_inner() -> anyhow::Result<()> {
         return Ok(());
     }
 
+    if arguments.supported_solc_versions {
+        writeln!(
+            std::io::stdout(),
+            ">={},<={}",
+            revive_solidity::SolcFirstSupportedVersion,
+            revive_solidity::SolcLastSupportedVersion,
+        )?;
+        return Ok(());
+    }
+
     if arguments.license {
         let license_mit = include_str!("../../../../LICENSE-MIT");
         let license_apache = include_str!("../../../../LICENSE-APACHE");