Add check for debug = true

Author: smoelius

Cargo.toml

@@ -12,6 +12,7 @@ addr2line = "0.25"
 anyhow = "1.0"
 byteorder = "1.5"
 cargo_metadata = "0.23"
+toml = "0.9"
 
 # smoelius: Dependencies needed for `__anchor_cli`.
 anchor-client = { version = "0.32", optional = true }
@@ -31,7 +32,6 @@ serde_json = { version = "1.0", optional = true }
 shellexpand = { version = "3.1", optional = true }
 solana-cli-config = { version = "3.0", optional = true }
 solana-sdk = { version = "2.3", optional = true }
-toml = { version = "0.9", optional = true }
 walkdir = { version = "2.5", optional = true }
 
 [build-dependencies]
@@ -62,7 +62,6 @@ __anchor_cli = [
     "shellexpand",
     "solana-cli-config",
     "solana-sdk",
-    "toml",
     "walkdir",
 ]
 

src/bin/anchor-coverage.rs

@@ -4,10 +4,11 @@ use std::{
     env::{args, current_dir, join_paths, split_paths, var_os},
     ffi::OsString,
     fmt::Write,
-    fs::{canonicalize, create_dir_all, read, remove_dir_all},
+    fs::{canonicalize, create_dir_all, read, read_to_string, remove_dir_all},
     path::{Path, PathBuf},
     process::Command,
 };
+use toml::{Table, Value};
 
 const SBF_TRACE_DIR: &str = "SBF_TRACE_DIR";
 
@@ -48,6 +49,13 @@ Usage: {0} [ANCHOR_TEST_ARGS]...
         _guard = VarGuard::set("PATH", Some(prepended_paths));
     }
 
+    if !profile_release_has_debug()? {
+        eprintln!(
+            "Warning: Could not find `debug = true` under `[profile.release]`; `anchor-coverage` \
+             may not work correctly"
+        );
+    }
+
     let sbf_trace_dir = current_dir.join("sbf_trace_dir");
 
     if sbf_trace_dir.try_exists()? {
@@ -123,6 +131,22 @@ fn prepend_paths(path: PathBuf) -> Result<OsString> {
     Ok(paths_joined)
 }
 
+fn profile_release_has_debug() -> Result<bool> {
+    // smoelius: If Cargo.toml cannot be found, proceed as if everything is okay.
+    let Ok(contents) = read_to_string("Cargo.toml") else {
+        return Ok(true);
+    };
+    let table = contents.parse::<Table>()?;
+    Ok(table
+        .get("profile")
+        .and_then(Value::as_table)
+        .and_then(|table| table.get("release"))
+        .and_then(Value::as_table)
+        .and_then(|table| table.get("debug"))
+        .and_then(Value::as_bool)
+        .unwrap_or(false))
+}
+
 fn anchor_test_with_debug(args: &[String], sbf_trace_dir: &Path) -> Result<()> {
     #[cfg(feature = "__anchor_cli")]
     anchor_coverage::__build_with_debug(