fix(_comp_get_words): empty prev if unavailable (localvar_inherit)

scop · Sep 24, 2023 · d8b8eef · d8b8eef
1 parent 3c4a89c
commit d8b8eef
Show file tree

Hide file tree

Showing 2 changed files with 5 additions and 3 deletions.
diff --git a/bash_completion b/bash_completion
@@ -953,9 +953,11 @@ _comp_get_words()
         upvars+=("$vcword")
         upargs+=(-v "$vcword" "$cword")
     }
-    [[ $vprev && $cword -ge 1 ]] && {
+    [[ $vprev ]] && {
+        local value=""
+        ((cword >= 1)) && value=${words[cword - 1]}
         upvars+=("$vprev")
-        upargs+=(-v "$vprev" "${words[cword - 1]}")
+        upargs+=(-v "$vprev" "$value")
     }
     [[ $vwords ]] && {
         # Note: bash < 4.4 has a bug that all the elements are connected with

diff --git a/test/t/unit/test_unit_initialize.py b/test/t/unit/test_unit_initialize.py
@@ -6,7 +6,7 @@
 @pytest.mark.bashcomp(
     cmd=None,
     ignore_env=r"^[+-](COMP(_(WORDS|CWORD|LINE|POINT)|REPLY)|"
-    r"cur|cword|words)=|^\+declare -f _cmd1$",
+    r"cur|prev|cword|words)=|^\+declare -f _cmd1$",
 )
 class TestUnitInitCompletion(TestUnitBase):
     def test_1(self, bash):