1 files changed, 38 insertions, 0 deletions
diff --git a/sh/profile.d/grep.sh b/sh/profile.d/grep.sh
new file mode 100644
index 00000000..e83d6268
--- /dev/null
+++ b/sh/profile.d/grep.sh
@@ -0,0 +1,38 @@
+# Store grep(1)'s --help output in a variable
+grep_help=$(grep --help 2>/dev/null)
+
+# Define and store appropriate colors for grep(1) if applicable
+case $grep_help in
+    *--color*)
+        GREP_COLORS='ms=01;31:mc=01;31:sl=:cx=:fn=35:ln=32:bn=32:se=36'
+        export GREP_COLORS
+        ;;
+esac
+
+# Use GREP_OPTIONS to add some useful --exclude and --exclude-dir options to
+# grep(1) calls if applicable
+case $grep_help in
+    *--exclude*)
+        for exclude in .gitignore .gitmodules ; do
+            GREP_OPTIONS=${GREP_OPTIONS:+$GREP_OPTIONS }'--exclude='$exclude
+        done
+        unset -v exclude
+        ;;
+esac
+case $grep_help in
+    *--exclude-dir*)
+        for exclude_dir in .cvs .git .hg .svn ; do
+            GREP_OPTIONS=${GREP_OPTIONS:+$GREP_OPTIONS }'--exclude-dir='$exclude_dir
+        done
+        unset -v exclude_dir
+        ;;
+esac
+
+# We're done parsing grep(1)'s --help output now
+unset -v grep_help
+
+# Export the grep(1) options if we decided on any
+if [ -n "$GREP_OPTIONS" ] ; then
+    export GREP_OPTIONS
+fi
+