Add bash/shell repomap support

aider/queries/tree-sitter-language-pack/bash-tags.scm

@@ -0,0 +1,6 @@
+; Bash / shell script function definitions.
+; Matches both POSIX-style `name() { ... }` and keyword-style
+; `function name() { ... }` / `function name { ... }`.
+
+(function_definition
+  name: (word) @name.definition.function) @definition.function

tests/basic/test_repomap.py

@@ -284,6 +284,9 @@ def setUp(self):
         self.GPT35 = Model("gpt-3.5-turbo")
         self.fixtures_dir = Path(__file__).parent.parent / "fixtures" / "languages"
 
+    def test_language_bash(self):
+        self._test_language_repo_map("bash", "sh", "greet")
+
     def test_language_c(self):
         self._test_language_repo_map("c", "c", "main")
 

tests/fixtures/languages/bash/test.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+# Sample bash script used as a repomap fixture.
+
+# POSIX-style function definition
+greet() {
+    local name="${1:-World}"
+    echo "Hello, ${name}!"
+}
+
+# Keyword-style function definition
+function deploy() {
+    local env="${1:-production}"
+    echo "Deploying to ${env}..."
+}
+
+# Another helper
+function cleanup() {
+    echo "Cleaning up..."
+    rm -f /tmp/deploy_lock
+}
+
+# Main entry point
+main() {
+    greet "$@"
+    deploy
+    cleanup
+}
+
+main "$@"