From 3314ea699b1dbdfd690167bbc0dc069e5ade1ce5 Mon Sep 17 00:00:00 2001
From: Long Ho <holevietlong@gmail.com>
Date: Thu, 30 Jul 2026 18:34:09 -0400
Subject: [PATCH] fix: reject unmatched entry globs

---
 crates/codescythe/analyze/discovery.rs | 10 ++++++++++
 crates/codescythe/analyze/tests.rs     | 26 ++++++++++++++++++++++++++
 2 files changed, 36 insertions(+)

diff --git a/crates/codescythe/analyze/discovery.rs b/crates/codescythe/analyze/discovery.rs
index 5d82eba..dc987ae 100644
--- a/crates/codescythe/analyze/discovery.rs
+++ b/crates/codescythe/analyze/discovery.rs
@@ -64,6 +64,16 @@ pub(super) fn discover_entry_files(
     }
 
     let entry_globs = build_glob_set(&config.entry)?;
+    for pattern in config.entry.iter().filter(|pattern| has_glob_meta(pattern)) {
+        let entry_glob = build_glob_set(std::slice::from_ref(pattern))?;
+        if !project_files
+            .iter()
+            .any(|file| entry_glob.is_match(relative_path(cwd, file)))
+        {
+            anyhow::bail!("entry glob {pattern:?} matched no files in the configured project");
+        }
+    }
+
     let mut entries = BTreeSet::<PathBuf>::new();
     for pattern in &config.entry {
         if !has_glob_meta(pattern) {
diff --git a/crates/codescythe/analyze/tests.rs b/crates/codescythe/analyze/tests.rs
index cc5464d..9f2f561 100644
--- a/crates/codescythe/analyze/tests.rs
+++ b/crates/codescythe/analyze/tests.rs
@@ -16,6 +16,32 @@ fn finds_unused_exports_and_files_in_knip_style_fixture() {
     assert!(!analysis.issues.exports.contains_key("index.ts"));
 }
 
+#[test]
+fn rejects_an_entry_glob_that_matches_no_project_files() {
+    let tempdir = tempfile::tempdir().unwrap();
+    let cwd = tempdir.path();
+    write_file(
+        cwd,
+        "codescythe.json",
+        r#"{
+              "entry": ["src/*.entry.ts", "src/missing/**/*.ts"],
+              "project": "src/**/*.ts"
+            }"#,
+    );
+    write_file(cwd, "src/main.entry.ts", "console.log('entry');\n");
+
+    let config = crate::load_config(cwd, None).unwrap();
+    let error = analyze_path(cwd, &config, AnalysisOptions::default()).unwrap_err();
+    let message = format!("{error:#}");
+
+    assert!(
+        message.contains(
+            r#"entry glob "src/missing/**/*.ts" matched no files in the configured project"#
+        ),
+        "{message}"
+    );
+}
+
 #[test]
 fn expect_error_suppresses_an_expected_unused_file() {
     let analysis = analyze_inline_project(&[