From a2e91b76cde21cad4d160e3b078deda5b9b41af2 Mon Sep 17 00:00:00 2001
From: Hans Wennborg <hans@hanshq.net>
Date: Fri, 28 Jul 2017 21:25:21 +0000
Subject: Merging r309112:
 ------------------------------------------------------------------------
 r309112 | yamaguchi | 2017-07-26 06:30:36 -0700 (Wed, 26 Jul 2017) | 7 lines

[Bash-completion] Fixed a bug that file doesn't autocompleted after =

Summary:
File path wasn't autocompleted after `-fmodule-cache-path=[tab]`, so
fixed this bug by checking if $flags contains only a newline or not.

Differential Revision: https://reviews.llvm.org/D35763
------------------------------------------------------------------------


git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_50@309435 91177308-0d34-0410-b5e6-96231b3b80d8
---
 utils/bash-autocomplete.sh | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/utils/bash-autocomplete.sh b/utils/bash-autocomplete.sh
index 72531b99e3..83c168bf76 100644
--- a/utils/bash-autocomplete.sh
+++ b/utils/bash-autocomplete.sh
@@ -65,10 +65,14 @@ _clang()
     return
   fi
 
-  if [[ "$cur" == '=' ]]; then
-    COMPREPLY=( $( compgen -W "$flags" -- "") )
-  elif [[ "$flags" == "" || "$arg" == "" ]]; then
+  # When clang does not emit any possible autocompletion, or user pushed tab after " ",
+  # just autocomplete files.
+  if [[ "$flags" == "$(echo -e '\n')" || "$arg" == "" ]]; then
+    # If -foo=<tab> and there was no possible values, autocomplete files.
+    [[ "$cur" == '=' || "$cur" == -*= ]] && cur=""
     _clang_filedir
+  elif [[ "$cur" == '=' ]]; then
+    COMPREPLY=( $( compgen -W "$flags" -- "") )
   else
     # Bash automatically appends a space after '=' by default.
     # Disable it so that it works nicely for options in the form of -foo=bar.
-- 
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