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41 lines
1.4 KiB
41 lines
1.4 KiB
__GREP_CACHE_FILE="$ZSH_CACHE_DIR"/grep-alias |
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# See if there's a cache file modified in the last day |
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__GREP_ALIAS_CACHES=("$__GREP_CACHE_FILE"(Nm-1)) |
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if [[ -n "$__GREP_ALIAS_CACHES" ]]; then |
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source "$__GREP_CACHE_FILE" |
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else |
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grep-flags-available() { |
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command grep "$@" "" &>/dev/null <<< "" |
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} |
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# Ignore these folders (if the necessary grep flags are available) |
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EXC_FOLDERS="{.bzr,CVS,.git,.hg,.svn,.idea,.tox,.venv,venv}" |
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# Check for --exclude-dir, otherwise check for --exclude. If --exclude |
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# isn't available, --color won't be either (they were released at the same |
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# time (v2.5): https://git.savannah.gnu.org/cgit/grep.git/tree/NEWS?id=1236f007 |
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if grep-flags-available --color=auto --exclude-dir=.cvs; then |
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GREP_OPTIONS="--color=auto --exclude-dir=$EXC_FOLDERS" |
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elif grep-flags-available --color=auto --exclude=.cvs; then |
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GREP_OPTIONS="--color=auto --exclude=$EXC_FOLDERS" |
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fi |
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if [[ -n "$GREP_OPTIONS" ]]; then |
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# export grep, egrep and fgrep settings |
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alias grep="grep $GREP_OPTIONS" |
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alias egrep="grep -E" |
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alias fgrep="grep -F" |
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# write to cache file if cache directory is writable |
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if [[ -w "$ZSH_CACHE_DIR" ]]; then |
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alias -L grep egrep fgrep >| "$__GREP_CACHE_FILE" |
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fi |
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fi |
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# Clean up |
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unset GREP_OPTIONS EXC_FOLDERS |
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unfunction grep-flags-available |
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fi |
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unset __GREP_CACHE_FILE __GREP_ALIAS_CACHES
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