40 lines
1.4 KiB
Bash
40 lines
1.4 KiB
Bash
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#!/bin/bash
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set -e
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# wrapper around "docker build" that creates a temporary directory and copies files into it first so that arbitrary host directories can be copied into containers without bind mounts, but accepts a Dockerfile on stdin
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# usage: ./docker-build.sh some-host-directory some-new-image:some-tag <<EOD
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# FROM ...
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# COPY dir/... /.../
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# EOD
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# ie: ./docker-build.sh .../hylang-hello-world librarytest/hylang <<EOD
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# FROM hylang
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# COPY dir/container.hy /dir/
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# CMD ["hy", "/dir/container.hy"]
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# EOD
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dir="$1"; shift
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[ -d "$dir" ]
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imageTag="$1"; shift
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tmp="$(mktemp -t -d docker-library-test-build-XXXXXXXXXX)"
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trap "rm -rf '$tmp'" EXIT
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cat > "$tmp/Dockerfile"
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from="$(awk -F '[ \t]+' 'toupper($1) == "FROM" { print $2; exit }' "$tmp/Dockerfile")"
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onbuilds="$(docker inspect -f '{{len .Config.OnBuild}}' "$from")"
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if [ "$onbuilds" -gt 0 ]; then
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# crap, the image we want to build has some ONBUILD instructions
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# those are kind of going to ruin our day
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# let's do some hacks to strip those bad boys out in a new fake layer
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"$(dirname "$(readlink -f "$BASH_SOURCE")")/remove-onbuild.sh" "$from" "$imageTag"
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awk -F '[ \t]+' 'toupper($1) == "FROM" { $2 = "'"$imageTag"'" } { print }' "$tmp/Dockerfile" > "$tmp/Dockerfile.new"
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mv "$tmp/Dockerfile.new" "$tmp/Dockerfile"
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fi
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cp -RL "$dir" "$tmp/dir"
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docker build -t "$imageTag" "$tmp" > /dev/null
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