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Subject[tip:perf/core] perf completion: Strip dependency on bash-completion
Commit-ID:  c3fb6717e90049b93d0f5f5714a4d878799d89c2
Gitweb: http://git.kernel.org/tip/c3fb6717e90049b93d0f5f5714a4d878799d89c2
Author: Ramkumar Ramachandra <artagnon@gmail.com>
AuthorDate: Thu, 4 Jul 2013 18:11:30 +0530
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Wed, 9 Oct 2013 11:12:24 -0300

perf completion: Strip dependency on bash-completion

The bash-completion package defines the _get_comp_words_by_ref function.
There is no need to depend on it, as we can reimplement it like git.git
has.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Link: http://lkml.kernel.org/r/1372941691-14684-7-git-send-email-artagnon@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/bash_completion | 83 ++++++++++++++++++++++++++++++++++++++++++----
1 file changed, 77 insertions(+), 6 deletions(-)

diff --git a/tools/perf/bash_completion b/tools/perf/bash_completion
index 35fdda1..ee9c6d8 100644
--- a/tools/perf/bash_completion
+++ b/tools/perf/bash_completion
@@ -1,5 +1,81 @@
# perf completion

+# Taken from git.git's completion script.
+__my_reassemble_comp_words_by_ref()
+{
+ local exclude i j first
+ # Which word separators to exclude?
+ exclude="${1//[^$COMP_WORDBREAKS]}"
+ cword_=$COMP_CWORD
+ if [ -z "$exclude" ]; then
+ words_=("${COMP_WORDS[@]}")
+ return
+ fi
+ # List of word completion separators has shrunk;
+ # re-assemble words to complete.
+ for ((i=0, j=0; i < ${#COMP_WORDS[@]}; i++, j++)); do
+ # Append each nonempty word consisting of just
+ # word separator characters to the current word.
+ first=t
+ while
+ [ $i -gt 0 ] &&
+ [ -n "${COMP_WORDS[$i]}" ] &&
+ # word consists of excluded word separators
+ [ "${COMP_WORDS[$i]//[^$exclude]}" = "${COMP_WORDS[$i]}" ]
+ do
+ # Attach to the previous token,
+ # unless the previous token is the command name.
+ if [ $j -ge 2 ] && [ -n "$first" ]; then
+ ((j--))
+ fi
+ first=
+ words_[$j]=${words_[j]}${COMP_WORDS[i]}
+ if [ $i = $COMP_CWORD ]; then
+ cword_=$j
+ fi
+ if (($i < ${#COMP_WORDS[@]} - 1)); then
+ ((i++))
+ else
+ # Done.
+ return
+ fi
+ done
+ words_[$j]=${words_[j]}${COMP_WORDS[i]}
+ if [ $i = $COMP_CWORD ]; then
+ cword_=$j
+ fi
+ done
+}
+
+type _get_comp_words_by_ref &>/dev/null ||
+_get_comp_words_by_ref()
+{
+ local exclude cur_ words_ cword_
+ if [ "$1" = "-n" ]; then
+ exclude=$2
+ shift 2
+ fi
+ __my_reassemble_comp_words_by_ref "$exclude"
+ cur_=${words_[cword_]}
+ while [ $# -gt 0 ]; do
+ case "$1" in
+ cur)
+ cur=$cur_
+ ;;
+ prev)
+ prev=${words_[$cword_-1]}
+ ;;
+ words)
+ words=("${words_[@]}")
+ ;;
+ cword)
+ cword=$cword_
+ ;;
+ esac
+ shift
+ done
+}
+
type __ltrim_colon_completions &>/dev/null ||
__ltrim_colon_completions()
{
@@ -19,12 +95,7 @@ _perf()
local cur prev cmd

COMPREPLY=()
- if function_exists _get_comp_words_by_ref; then
- _get_comp_words_by_ref -n : cur prev
- else
- cur=$(_get_cword :)
- prev=${COMP_WORDS[COMP_CWORD-1]}
- fi
+ _get_comp_words_by_ref -n : cur prev

cmd=${COMP_WORDS[0]}


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