r309112 - [Bash-completion] Fixed a bug that file doesn't autocompleted after =

[Yuka Takahashi via cfe-commits]

Author: yamaguchi
Date: Wed Jul 26 06:30:36 2017
New Revision: 309112

URL: http://llvm.org/viewvc/llvm-project?rev=309112&view=rev
Log:
[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

Modified:
    cfe/trunk/utils/bash-autocomplete.sh

Modified: cfe/trunk/utils/bash-autocomplete.sh
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/utils/bash-autocomplete.sh?rev=309112&r1=309111&r2=309112&view=diff
==============================================================================
--- cfe/trunk/utils/bash-autocomplete.sh (original)
+++ cfe/trunk/utils/bash-autocomplete.sh Wed Jul 26 06:30:36 2017
@@ -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.