[Bash-autocompletion] Check clang version in Bash
Summary:
Add check if user's clang version supports --autocomplete or not.
If not, we just autocomplete files.
Reviewers: ruiu, v.g.vassilev, teemperor
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D34607
llvm-svn: 306555
diff --git a/clang/utils/bash-autocomplete.sh b/clang/utils/bash-autocomplete.sh
index ba908bc..46e29b8 100644
--- a/clang/utils/bash-autocomplete.sh
+++ b/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 +24,14 @@
arg="$w2=,$cur"
fi
- local flags=$( clang --autocomplete="$arg" )
+ flags=$( clang --autocomplete="$arg" 2>/dev/null )
+ # If clang is old that it does not support --autocomplete,
+ # fall back to the filename completion.
+ if [[ "$?" != 0 ]]; then
+ _filedir
+ return
+ fi
+
if [[ "$cur" == '=' ]]; then
COMPREPLY=( $( compgen -W "$flags" -- "") )
elif [[ "$flags" == "" || "$arg" == "" ]]; then