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Warn if variable substitution does not have a semi-colon #37

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rcjsuen opened this issue Apr 20, 2018 · 0 comments
Open

Warn if variable substitution does not have a semi-colon #37

rcjsuen opened this issue Apr 20, 2018 · 0 comments
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enhancement

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@rcjsuen
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rcjsuen commented Apr 20, 2018

The validator will not generate any errors for the following Dockerfile. We should check to make sure that such incomplete variables are warned about if possible.

FROM scratch
ARG aaa=${bbb
$ docker build .
Sending build context to Docker daemon  1.695MB
Step 1/2 : FROM scratch
 --->
Step 2/2 : ARG aaa=${bbb
failed to process "${bbb": missing ':' in substitution
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