[PATCH] D34607: [Bash-autocompletion] Check clang version in Bash

[Yuka Takahashi via Phabricator via cfe-commits]

yamaguchi created this revision.

Add check if user's clang version supports --autocomplete or not.
If not, we just autocomplete files.


https://reviews.llvm.org/D34607

Files:
  clang/utils/bash-autocomplete.sh


Index: clang/utils/bash-autocomplete.sh
===================================================================
--- clang/utils/bash-autocomplete.sh
+++ clang/utils/bash-autocomplete.sh
@@ -1,7 +1,7 @@
 # Please add "source /path/to/bash-autocomplete.sh" to your .bashrc to use this.
 _clang()
 {
-  local cur prev words cword arg
+  local cur prev words cword arg flags
   _init_completion -n : || return
 
   # bash always separates '=' as a token even if there's no space before/after '='.
@@ -24,7 +24,12 @@
     arg="$w2=,$cur"
   fi
 
-  local flags=$( clang --autocomplete="$arg" )
+  flags=$( clang --autocomplete="$arg" 2>/dev/null )
+  # Check if --autocomplete is supported in user's clang version.
+  if [[ "$?" != 0 ]]; then
+    _filedir
+    return 0
+  fi
   if [[ "$cur" == '=' ]]; then
     COMPREPLY=( $( compgen -W "$flags" -- "") )
   elif [[ "$flags" == "" || "$arg" == "" ]]; then


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