39 lines
1.2 KiB
Bash
39 lines
1.2 KiB
Bash
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#!/bin/bash
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# Github username and repo name
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user="docker"
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repo="compose"
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# Retrieve the latest version number
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addr="https://github.com/$user/$repo/releases/latest"
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page=$(curl -s $addr | grep -o releases/tag/*.*\")
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version=$(echo $page | awk '{print substr($1, 14, length($1) - 14)}')
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# Download prep
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url="https://github.com/$user/$repo/releases/download/$version"
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file="docker-compose-$(uname -s)-$(uname -m)"
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# Download latest Docker Compose if that version hasn't been downloaded
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if [ ! -f /tmp/docker_compose_$version ]; then
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curl -L $url/$file -o /tmp/docker-compose_$version
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fi
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# Is it already installed?
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if installed=$(which docker-compose); then
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new_chksum=$(sha256sum /tmp/docker-compose_$version)
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old_chksum=$(sha256sum /usr/local/bin/docker-compose)
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# If checksums are different, delete and install new version
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if [ ! "$new_chksum" = "$old_chksum" ]; then
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rm /usr/local/bin/docker-compose
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mv /tmp/docker-compose_$version /usr/local/bin/docker-compose
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chmod +x /usr/local/bin/docker-compose
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fi
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else
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# It's not installed, so no need to remove
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mv /tmp/docker-compose_$version /usr/local/bin/docker-compose
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chmod +x /usr/local/bin/docker-compose
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fi
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