Echo Without Newline Causes Offset

[deckar01]

echo -n seem to cause an off by one issue.

# test.sh

for x in {1,2,3}; do
  echo -n " * Sleeping ${x}s... "
  sleep $x
  echo "Done!"
done

jared@jared-slate:~/src/equity_web> ./test.sh | gnomon
   2.6452s    * Sleeping 1s... Done!
   3.0025s    * Sleeping 2s... Done!
   0.0046s    * Sleeping 3s... Done!
   0.0005s   
             
     Total   5.6534s

[deckar01]

Avoiding the delayed output fixes the problem, but this is a common strategy used by unit test reporters.

# test.sh

for x in {1,2,3}; do
  echo " * Sleeping ${x}s..."
  sleep $x
done

jared@jared-slate:~/src/equity_web> ./test.sh | gnomon
   0.6463s    * Sleeping 1s...
   2.0020s    * Sleeping 2s...
   3.0065s    * Sleeping 3s...
   0.0005s   
             
     Total   5.6558s