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Add exclude-dir option only if grep supports it

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Older versions of grep pre 2.5.2 did not have this option. Providing it
breaks grep use under oh-my-zsh on these systems. This patch adds a
check to ensure the option is only used if the manpages list it.
This commit is contained in:
Dan Porter 2014-04-01 15:32:06 +01:00
commit 5b3df16469
1 changed files with 6 additions and 4 deletions
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10
lib/grep.zsh
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@ -3,11 +3,13 @@
# Examples: http://rubyurl.com/ZXv
#
# avoid VCS folders
# avoid VCS folders if grep supports it
GREP_OPTIONS=
for PATTERN in .cvs .git .hg .svn; do
GREP_OPTIONS+="--exclude-dir=$PATTERN "
done
if [[ "$(man grep | grep -q exclude-dir)" != "1" ]]; then
for PATTERN in .cvs .git .hg .svn; do
GREP_OPTIONS+="--exclude-dir=$PATTERN "
done
fi
GREP_OPTIONS+="--color=auto"
export GREP_OPTIONS="$GREP_OPTIONS"
export GREP_COLOR='1;32'