From e90abe099043862e0bc295a8ee2f551bd8e8b5aa Mon Sep 17 00:00:00 2001
From: grandizzy <grandizzy.the.egg@gmail.com>
Date: Fri, 15 Nov 2024 14:34:14 +0200
Subject: [PATCH] feat(forge build): err if no source file in specified paths

---
 crates/forge/bin/cmd/build.rs |  3 +++
 crates/forge/tests/cli/cmd.rs | 10 +++++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/crates/forge/bin/cmd/build.rs b/crates/forge/bin/cmd/build.rs
index f2a1891e2634..f803f45f6cf0 100644
--- a/crates/forge/bin/cmd/build.rs
+++ b/crates/forge/bin/cmd/build.rs
@@ -94,6 +94,9 @@ impl BuildArgs {
                 let path = if joined.exists() { &joined } else { path };
                 files.extend(source_files_iter(path, MultiCompilerLanguage::FILE_EXTENSIONS));
             }
+            if files.is_empty() {
+                eyre::bail!("No source files found in specified build paths.")
+            }
         }
 
         let format_json = shell::is_json();
diff --git a/crates/forge/tests/cli/cmd.rs b/crates/forge/tests/cli/cmd.rs
index d4f3973a337a..e2e38cc3c1f1 100644
--- a/crates/forge/tests/cli/cmd.rs
+++ b/crates/forge/tests/cli/cmd.rs
@@ -2829,7 +2829,7 @@ Compiler run successful!
 "#]]);
 
     // Expect compilation to be skipped as no files have changed
-    cmd.arg("build").assert_success().stdout_eq(str![[r#"
+    cmd.forge_fuse().arg("build").assert_success().stdout_eq(str![[r#"
 No files changed, compilation skipped
 
 "#]]);
@@ -2952,6 +2952,14 @@ Compiler run successful!
 [SOLC_VERSION] [ELAPSED]
 Compiler run successful!
 
+"#]]);
+
+    // Fail if no source file found.
+    prj.clear();
+    cmd.forge_fuse();
+    cmd.args(["build", "test/Dummy.sol", "--force"]).assert_failure().stderr_eq(str![[r#"
+Error: No source files found in specified build paths.
+
 "#]]);
 });