70 lines
1.3 KiB
Bash
Executable File
70 lines
1.3 KiB
Bash
Executable File
#!/bin/bash
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# Bring in the variables from SOLUTION file
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#
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# Determine if it is Mac OS and switch to use gxargs instead
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CMD=xargs
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if [ $(which system_profiler) ]; then
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CMD=gxargs
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fi
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export $(grep -v '^#' SOLUTION | ${CMD} -d '\n')
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export $(grep -v '^#' MANIFEST | ${CMD} -d '\n')
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# Remove the Dockerfile if it exists; should check
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# if it is clean first, and abort if not.
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#
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[ -e Dockerfile ] && rm Dockerfile
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cat << EOM > Dockerfile
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#
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# DO NOT EDIT THIS DOCKERFILE
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#
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# This file is auto-generated via scripts/build-dockerfile
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# by using environment substitution while concatenating the
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# contents of templates/*, and then adding the contents
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# of Dockerfile.solution
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#
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# Most solution specific changes should be isolated in
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# Dockerfile.solution. After making changes, you can
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# then re-run scripts/build-dockerfile
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#
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EOM
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for snippet in templates/??-*.in; do
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cat << EOM >> Dockerfile
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#
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# Template from templates/${snippet}
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#
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EOM
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envsubst < $snippet >> Dockerfile
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done
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cat << EOM >> Dockerfile
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#
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# Solution begins here (from Dockerfile.solution)
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#
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EOM
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envsubst < Dockerfile.solution >> Dockerfile
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cat << EOM >> Dockerfile
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#
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# Standard ending begins here (from templates/ending.in)
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#
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EOM
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envsubst < templates/ending.in >> Dockerfile
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cat << EOM
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Dockerfile has been updated.
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To build the image, you can run scripts/build-images
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EOM
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