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33 lines
876 B
Bash
33 lines
876 B
Bash
#!/usr/bin/env sh
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: ${PREFER_BUILDCTL=}
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: ${PREFER_LEGACY=}
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: ${CLI_PLATFORM=}
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newerEqualThan() { # $1=minimum wanted version $2=actual-version
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[ "$1" = "$(printf "$1\n$2" | sort -V | head -n 1)" ]
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}
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buildmode="legacy"
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if [ "$PREFER_BUILDCTL" = "1" ]; then
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buildmode="buildkit";
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else
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serverVersion=$(docker info --format '{{.ServerVersion}}')
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experimental=$(docker info --format '{{.ExperimentalBuild}}')
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if [ "$PREFER_LEGACY" != "1" ] && ( newerEqualThan "18.09" $serverVersion || \
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( newerEqualThan "18.06" $serverVersion && [ "true" = "$experimental" ] ) || \
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[ "$DOCKER_BUILDKIT" = "1" ]); then
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buildmode="docker-buildkit";
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fi
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fi
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if [ -z "$CLI_PLATFORM" ]; then
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rawos=$(uname -s)
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if [ "$rawos" = "Darwin" ]; then
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CLI_PLATFORM="darwin/amd64"
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elif uname -s | grep MINGW > /dev/null 2>&1 ; then
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CLI_PLATFORM="windows/amd64"
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fi
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fi
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