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lib/grep: Refactor variable and function names to avoid conflicts

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This commit is contained in:
Koichi Murase
2022-01-02 00:25:30 +09:00
parent cb3599a312
commit 9b240245bb
1 changed files with 16 additions and 15 deletions
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31
lib/grep.sh
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@@ -1,31 +1,32 @@
#!/usr/bin/env bash
# is x grep argument available?
grep_flag_available() {
echo | grep $1 "" >/dev/null 2>&1
_omb_grep_flag_available() {
echo | grep $1 "" >/dev/null 2>&1
}
GREP_OPTIONS=()
_omb_grep_options=()
# color grep results
if grep_flag_available --color=auto; then
GREP_OPTIONS+=( "--color=auto" )
if _omb_grep_flag_available --color=auto; then
_omb_grep_options+=( "--color=auto" )
fi
# ignore VCS folders (if the necessary grep flags are available)
VCS_FOLDERS="{.bzr,CVS,.git,.hg,.svn}"
_omb_grep_vcs_folders="{.bzr,CVS,.git,.hg,.svn}"
if grep_flag_available --exclude-dir=.cvs; then
GREP_OPTIONS+=( "--exclude-dir=$VCS_FOLDERS" )
elif grep_flag_available --exclude=.cvs; then
GREP_OPTIONS+=( "--exclude=$VCS_FOLDERS" )
if _omb_grep_flag_available --exclude-dir=.cvs; then
_omb_grep_options+=( "--exclude-dir=$_omb_grep_vcs_folders" )
elif _omb_grep_flag_available --exclude=.cvs; then
_omb_grep_options+=( "--exclude=$_omb_grep_vcs_folders" )
fi
# export grep settings
if ((${#GREP_OPTIONS[@]} > 0)); then
alias grep="grep ${GREP_OPTIONS[*]}"
if ((${#_omb_grep_options[@]} > 0)); then
alias grep="grep ${_omb_grep_options[*]}"
fi
# clean up
unset GREP_OPTIONS
unset VCS_FOLDERS
unset -f grep_flag_available
unset -v _omb_grep_options
unset -v _omb_grep_vcs_folders
unset -f _omb_grep_flag_available