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Do not use GREP_OPTIONS to set grep parameters

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From grep version 2.21, using environment variable `GREP_OPTIONS' to
set common parameters to grep calls is deprecated.

As an alternative, we use a custom function to pass in our defined
`GREP_OPTIONS`, while at the same time preserving any aliases that
called grep.

If we choose the alias way as suggested in the grep documentation,
we'll overwrite any already defined grep aliases, or get overwritten
by any subsequently defined user aliases.
This commit is contained in:
Marc Cornellà 2014-11-26 18:43:19 +01:00
commit ca4779402a
1 changed files with 6 additions and 2 deletions
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8
lib/grep.zsh
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@ -3,6 +3,7 @@
# Examples: http://rubyurl.com/ZXv # Examples: http://rubyurl.com/ZXv
# #
# color grep output
GREP_OPTIONS="--color=auto" GREP_OPTIONS="--color=auto"
# avoid VCS folders (if the necessary grep flags are available) # avoid VCS folders (if the necessary grep flags are available)
@ -20,5 +21,8 @@ elif grep-flag-available --exclude=.cvs; then
fi fi
unfunction grep-flag-available unfunction grep-flag-available
export GREP_OPTIONS="$GREP_OPTIONS" # define grep wrapper (GREP_OPTIONS env var is deprecated)
export GREP_COLOR='1;32' eval "function grep {
command grep $GREP_OPTIONS \"\$@\"
}"
unset GREP_OPTIONS