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Last active August 29, 2015 13:56
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"docker build" output mangling
Raw
Dockerfile
FROM busybox
RUN echo -n '[ ] testing...' && sleep 5 && echo -e 'done.\r[✓]'
Raw
output-step1-expected.txt
# for about 5 seconds:
[ ] testing...
# then:
[✓] testing...done.
Raw
output.txt
$ docker build --no-cache --rm git://gist.github.com/9168215.git
Step 0 : FROM busybox
---> 769b9341d937
Step 1 : RUN echo -n '[ ] testing...' && sleep 5 && echo -e 'done.\r[✓]'
---> Running in cc3369371e19
[✓]e.
---> ac50e5cf83b3
Successfully built ac50e5cf83b3
Removing intermediate container cc3369371e19
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