fix(extract): route extensionless shebang scripts to their AST extractor

graphify/extract.py

@@ -15821,6 +15821,30 @@ def _body_of(block):
 }
 
 
+# Extensionless executables (CLI entry points like `devctl` or `manage`) carry
+# their language in the shebang, not the suffix. detect.classify_file already
+# routes them to the CODE path via _shebang_interpreter; _get_extractor must
+# honor the same signal or these files are classified as code and then silently
+# dropped by extraction. Only interpreters with a real extractor are mapped —
+# detect's wider set (perl, fish, tcsh, Rscript) stays unmapped and skipped.
+_SHEBANG_DISPATCH: dict[str, Any] = {
+    "python": extract_python,
+    "python2": extract_python,
+    "python3": extract_python,
+    "bash": extract_bash,
+    "sh": extract_bash,
+    "dash": extract_bash,
+    "zsh": extract_bash,
+    "ksh": extract_bash,
+    "node": extract_js,
+    "nodejs": extract_js,
+    "ruby": extract_ruby,
+    "lua": extract_lua,
+    "php": extract_php,
+    "julia": extract_julia,
+}
+
+
 # ObjC-only directives. They are illegal in C and C++, so finding one in a `.h`
 # file is a near-zero-false-positive signal that the header is Objective-C (and so
 # belongs to extract_objc, not extract_c). `@property` is deliberately excluded: it
@@ -15908,6 +15932,14 @@ def _get_extractor(path: Path) -> Any | None:
         # grammar has no class_specifier). Reroute to extract_cpp (#1547).
         if _is_cpp_header(path):
             return extract_cpp
+    # Extensionless files: resolve by shebang, mirroring detect.classify_file.
+    # Without this, detect labels e.g. `#!/usr/bin/env bash` CLIs as code but
+    # extraction returns no extractor and the file silently contributes nothing.
+    if not suffix:
+        from graphify.detect import _shebang_interpreter
+        interp = _shebang_interpreter(path)
+        if interp is not None:
+            return _SHEBANG_DISPATCH.get(interp)
     return _DISPATCH.get(suffix)
 
 

tests/test_extract.py

@@ -1514,6 +1514,56 @@ def test_extract_json_via_dispatch():
     assert _get_extractor(Path("foo.json")) is extract_json
 
 
+def test_extensionless_shebang_via_dispatch(tmp_path):
+    """Extensionless CLIs resolve their extractor from the shebang, mirroring
+    detect.classify_file — otherwise detect labels them code and extraction
+    silently drops them."""
+    from graphify.extract import _get_extractor
+
+    cli = tmp_path / "devctl"
+    cli.write_text("#!/usr/bin/env bash\necho hi\n")
+    assert _get_extractor(cli) is extract_bash
+
+    pytool = tmp_path / "manage"
+    pytool.write_text("#!/usr/bin/env python3\nprint('hi')\n")
+    assert _get_extractor(pytool) is extract_python
+
+    # env -S split-args form is handled by the shared shebang parser
+    split = tmp_path / "runner"
+    split.write_text("#!/usr/bin/env -S bash -eu\necho hi\n")
+    assert _get_extractor(split) is extract_bash
+
+
+def test_extensionless_without_usable_shebang_stays_unsupported(tmp_path):
+    from graphify.extract import _get_extractor
+
+    plain = tmp_path / "LICENSE-COPY"
+    plain.write_text("plain text, no shebang\n")
+    assert _get_extractor(plain) is None
+
+    # Interpreter known to detect but with no AST extractor: stays skipped
+    # rather than being mis-parsed by a wrong grammar.
+    perl = tmp_path / "legacy"
+    perl.write_text("#!/usr/bin/env perl\nprint 1;\n")
+    assert _get_extractor(perl) is None
+
+
+def test_extract_extensionless_bash_cli_end_to_end(tmp_path):
+    """A shebang-only bash CLI must contribute nodes with the same ID scheme
+    as a .sh file (path stem + entity), so doc-created stub IDs merge."""
+    cli = tmp_path / "devctl"
+    cli.write_text(
+        "#!/usr/bin/env bash\n"
+        "helper() { echo hi; }\n"
+        "main() { helper; }\n"
+        'main "$@"\n'
+    )
+    result = extract([cli], cache_root=tmp_path)
+    ids = {n["id"] for n in result["nodes"]}
+    assert "devctl_helper" in ids
+    assert "devctl_main" in ids
+
+
 def test_extract_bash_node_metadata_is_sanitized():
     """Bash extractor must route node metadata through sanitize_metadata so
     HTML-sensitive characters cannot reach downstream graph viewers raw."""