completion: complete config variables and values for 'git clone --config='

Completing configuration sections and variable names for the stuck
argument of 'git clone --config=<TAB>' requires a bit of extra care
compared to doing the same for the unstuck argument of 'git clone
--config <TAB>', because we have to deal with that '--config=' being
part of the current word to be completed.

Add an option to the __git_complete_config_variable_name_and_value()
and in turn to the __git_complete_config_variable_name() helper
functions to specify the current section/variable name to be
completed, so they can be used even when completing the stuck argument
of '--config='.

__git_complete_config_variable_value() already has such an option, and
thus no further changes were necessary to complete possible values
after 'git clone --config=section.name=<TAB>'.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/t/t9902-completion.sh b/t/t9902-completion.sh
index 9e90a64830..5d98d66dbd 100755
--- a/t/t9902-completion.sh
+++ b/t/t9902-completion.sh
@@ -1740,6 +1740,27 @@ test_expect_success 'git -c - value' '
 	EOF
 '
 
+test_expect_success 'git clone --config= - section' '
+	test_completion "git clone --config=br" <<-\EOF
+	branch.Z
+	browser.Z
+	EOF
+'
+
+test_expect_success 'git clone --config= - variable name' '
+	test_completion "git clone --config=log.d" <<-\EOF
+	log.date=Z
+	log.decorate=Z
+	EOF
+'
+
+test_expect_success 'git clone --config= - value' '
+	test_completion "git clone --config=color.pager=" <<-\EOF
+	false Z
+	true Z
+	EOF
+'
+
 test_expect_success 'sourcing the completion script clears cached commands' '
 	__git_compute_all_commands &&
 	verbose test -n "$__git_all_commands" &&