[PATCHv2 10/21] completion: list refs from remote when remote's name matches a directory

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If the remote given to __git_refs() happens to match both the name of
a configured remote and the name of a directory in the current working
directory, then that directory is assumed to be a git repository, and
listing refs from that directory will be attempted.  This is wrong,
because in such a situation git commands (e.g. 'git fetch|pull|push
<remote>' whom these refs will eventually be passed to) give
precedence to the configured remote.  Therefore, __git_refs() should
list refs from the configured remote as well.

Add the helper function __git_is_configured_remote() that checks
whether its argument matches the name of a configured remote.  Use
this helper to decide how to handle the remote passed to __git_refs().

Signed-off-by: SZEDER Gábor <szeder.dev@xxxxxxxxx>
---
 contrib/completion/git-completion.bash | 20 ++++++++++++++++++--
 t/t9902-completion.sh                  | 11 ++++++++++-
 2 files changed, 28 insertions(+), 3 deletions(-)

diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 7d7e8b9d9..fd0ba1f3b 100644
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -347,12 +347,16 @@ __git_refs ()
 	local format refs pfx
 
 	if [ -n "$remote" ]; then
-		if [ -d "$remote/.git" ]; then
+		if __git_is_configured_remote "$remote"; then
+			# configured remote takes precedence over a
+			# local directory with the same name
+			list_refs_from=remote
+		elif [ -d "$remote/.git" ]; then
 			dir="$remote/.git"
 		elif [ -d "$remote" ]; then
 			dir="$remote"
 		else
-			list_refs_from=remote
+			list_refs_from=url
 		fi
 	fi
 
@@ -435,6 +439,18 @@ __git_remotes ()
 	git --git-dir="$d" remote
 }
 
+# Returns true if $1 matches the name of a configured remote, false otherwise.
+__git_is_configured_remote ()
+{
+	local remote
+	for remote in $(__git_remotes); do
+		if [ "$remote" = "$1" ]; then
+			return 0
+		fi
+	done
+	return 1
+}
+
 __git_list_merge_strategies ()
 {
 	git merge -s help 2>&1 |
diff --git a/t/t9902-completion.sh b/t/t9902-completion.sh
index 6e64cd6ba..a201b5212 100755
--- a/t/t9902-completion.sh
+++ b/t/t9902-completion.sh
@@ -373,6 +373,15 @@ test_expect_success '__git_remotes - list remotes from $GIT_DIR/remotes and from
 	test_cmp expect actual
 '
 
+test_expect_success '__git_is_configured_remote' '
+	test_when_finished "git remote remove remote_1" &&
+	git remote add remote_1 git://remote_1 &&
+	test_when_finished "git remote remove remote_2" &&
+	git remote add remote_2 git://remote_2 &&
+	verbose __git_is_configured_remote remote_2 &&
+	test_must_fail __git_is_configured_remote non-existent
+'
+
 test_expect_success 'setup for ref completion' '
 	git commit --allow-empty -m initial &&
 	git branch matching-branch &&
@@ -516,7 +525,7 @@ test_expect_success '__git_refs - configured remote - full refs - repo given on
 	test_cmp expected "$actual"
 '
 
-test_expect_failure '__git_refs - configured remote - remote name matches a directory' '
+test_expect_success '__git_refs - configured remote - remote name matches a directory' '
 	cat >expected <<-EOF &&
 	HEAD
 	branch-in-other
-- 
2.11.0.555.g967c1bcb3




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