compgen performs expansion on all words in the list given to its -W
option.  This breaks completion in various ways if one of those words
can be expanded.  The funniest breakage is probably this, as the
command_not_found_handle kicks in:

$ git branch '$(foo)'
$ git branch <TAB>No command 'foo' found, did you mean:
Command 'fio' from package 'fio' (universe)
Command 'goo' from package 'goo' (universe)
Command 'fop' from package 'fop' (main)
Command 'fox' from package 'objcryst-fox' (universe)
Command 'xoo' from package 'xoo' (universe)
Command 'zoo' from package 'zoo' (universe)
foo: command not found

Document this breakage with tests.

Signed-off-by: SZEDER Gábor <sze...@ira.uka.de>
---
 t/t9902-completion.sh | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/t/t9902-completion.sh b/t/t9902-completion.sh
index 01f33220..4af2a149 100755
--- a/t/t9902-completion.sh
+++ b/t/t9902-completion.sh
@@ -146,6 +146,22 @@ test_expect_success '__gitcomp - suffix' '
        test_cmp expected out
 '
 
+test_expect_failure '__gitcomp - expandable words' '
+       sed -e "s/Z$//" >expected <<-\EOF &&
+       $foo Z
+       $(bar) Z
+       ${baz} Z
+       EOF
+       (
+               local -a COMPREPLY &&
+               cur="" &&
+               __gitcomp "\$foo \$(bar) \${baz}" &&
+               IFS="$newline" &&
+               echo "${COMPREPLY[*]}" > out
+       ) &&
+       test_cmp expected out
+'
+
 test_expect_success '__gitcomp_nl - trailing space' '
        sed -e "s/Z$//" >expected <<-\EOF &&
        maint Z
@@ -193,6 +209,22 @@ test_expect_success '__gitcomp_nl - suffix' '
        test_cmp expected out
 '
 
+test_expect_failure '__gitcomp_nl - expandable words' '
+       sed -e "s/Z$//" >expected <<-\EOF &&
+       $foo Z
+       $(bar) Z
+       ${baz} Z
+       EOF
+       (
+               local -a COMPREPLY &&
+               cur="" &&
+               __gitcomp_nl "\$foo$newline\$(bar)$newline\${baz}" &&
+               IFS="$newline" &&
+               echo "${COMPREPLY[*]}" > out
+       ) &&
+       test_cmp expected out
+'
+
 test_expect_success 'basic' '
        run_completion git "" &&
        # built-in
-- 
1.7.12.1.438.g7dfa67b

--
To unsubscribe from this list: send the line "unsubscribe git" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to