X-Git-Url: https://ruderich.org/simon/gitweb/?a=blobdiff_plain;f=lib.sh;h=d150778e36bccc09036ba1c5a5a33257005f37f5;hb=7fe0556786e569f981dfb20ba0ac9c74983e7ed0;hp=1fa3c8fc0fedaea09f27b91769f1f93218a793fb;hpb=3c9f2ee5ea8c7fe57864cad38f4f6188c569fa5d;p=config%2Fdotfiles.git

diff --git a/lib.sh b/lib.sh
index 1fa3c8f..d150778 100644
--- a/lib.sh
+++ b/lib.sh
@@ -2,16 +2,30 @@
 #
 # Their setup.sh script sources this file.
 
+# Copyright (C) 2009-2013  Simon Ruderich
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
 
 # csh gives the error "Unknown colorls variable `su'." when used with newer
 # options supported by Zsh or GNU ls.
 unset LS_COLORS
 
 
-# Check if the given program is installed. Returns 0 if it exists, 1
-# otherwise; so it can be used in if.
+# Check if the given program is installed. `type` is portable, `which` is not.
 installed() {
-    which $1 2>&1 | perl -e '$_ = <>; if (not m{^/}) { exit 1 }'
+    type "$1" >/dev/null 2>&1
 }
 
 # Print the current OS. The following OS are supported at the moment:
@@ -19,6 +33,7 @@ installed() {
 # - Gentoo (gentoo)
 # - Mac OS X (darwin)
 # - Solaris/OpenSolaris (sun)
+# - FreeBSD (freebsd)
 # If an unsupported OS is used an error is printed.
 os() {
     if [ -f /etc/debian_version ]; then
@@ -29,6 +44,8 @@ os() {
         echo darwin
     elif [ x`uname` = xSunOS ]; then
         echo sun
+    elif [ x`uname` = xFreeBSD ]; then
+        echo freebsd
     else
         echo unsupported OS! >&2
         return 1