. ../lib.sh
-# Tests for installed() with hopefully proper exit codes (1 if the program was
-# not found).
+# which with proper exit codes and output to stdout.
+which() {
+ if [ $1 = ls ]; then
+ echo /bin/ls
+ else
+ echo no doesnt-exist in /usr/bin /bin /usr/sbin /sbin
+ return 1
+ fi
+}
+echo stdout which
+installed ls && echo ls installed
+installed doesnt-exist && echo doesnt-exist installed
+
+# which with proper exit codes and output to stderr in case of an error.
+which() {
+ if [ $1 = ls ]; then
+ echo /bin/ls
+ else
+ echo no doesnt-exist in /usr/bin /bin /usr/sbin /sbin >&2
+ return 1
+ fi
+}
+echo stderr which
installed ls && echo ls installed
installed doesnt-exist && echo doesnt-exist installed
-# Simulate BSD `which` like on Mac OS X which doesn't use exit codes.
-function which() {
- echo Mac OS X which for $1 >&2
+# which with no proper exit codes and output to stdout in case of an error.
+which() {
if [ $1 = ls ]; then
echo /bin/ls
else
echo no doesnt-exist in /usr/bin /bin /usr/sbin /sbin
fi
}
-# Tests for installed() without exit codes.
+echo stupid which
+installed ls && echo ls installed
+installed doesnt-exist && echo doesnt-exist installed
+
+# which with proper exit codes and no output in case of an error.
+which() {
+ if [ $1 = ls ]; then
+ echo /bin/ls
+ else
+ return 1
+ fi
+}
+echo different which
installed ls && echo ls installed
installed doesnt-exist && echo doesnt-exist installed