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72 lines
2.1 KiB
Bash
72 lines
2.1 KiB
Bash
#!/usr/bin/env bash
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# vim:ts=4:sts=4:sw=4:et
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#
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# Author: Hari Sekhon
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# Date: 2024-08-21 10:13:38 +0200 (Wed, 21 Aug 2024)
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#
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# https///github.com/HariSekhon/DevOps-Bash-tools
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#
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# License: see accompanying Hari Sekhon LICENSE file
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#
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# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
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#
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# https://www.linkedin.com/in/HariSekhon
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#
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set -euo pipefail
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[ -n "${DEBUG:-}" ] && set -x
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srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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# shellcheck disable=SC1090,SC1091
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. "$srcdir/../lib/utils.sh"
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# shellcheck disable=SC2034,SC2154
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usage_description="
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Downloads OpenJDK version for Linux x86_64
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If Java version is not specified, automatically determines latest version to download
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"
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# used by usage() in lib/utils.sh
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# shellcheck disable=SC2034
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usage_args="[<java_version>]"
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help_usage "$@"
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#min_args 1 "$@"
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java_version="${1:-}"
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if is_mac; then
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grep(){
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command ggrep "$@"
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}
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fi
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if is_blank "$java_version"; then
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timestamp "Java version not specified, attempting to find latest JDK version"
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timestamp "Fetching downloads page"
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# super brittle to pass a web page that will change so just take the first JDK number which is likely to be the production release
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download_page="$(curl -sS "https://jdk.java.net/")"
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timestamp "Parsing downloads page"
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java_version="$(grep -P -o -m 1 'JDK \K\d+' <<< "$download_page" || die "Failed to parse JDK version out of web page")"
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timestamp "Determined latest JDK version to be $java_version"
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fi
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java_version_url="https://jdk.java.net/java-se-ri/$java_version"
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if [ "$java_version" = 8 ]; then
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java_version_url+="-MR6"
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elif [ "$java_version" = 11 ]; then
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java_version_url+="-MR3"
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elif [ "$java_version" = 17 ]; then
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java_version_url+="-MR1"
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fi
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timestamp "Parsing download URL from Java version URL: $java_version_url"
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download_page="$(curl -sS "$java_version_url")"
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download_url="$(grep -Eom1 "https://download.java.net/openjdk/(open)?jdk$java_version.+linux-x64.*.tar.gz" <<< "$download_page" ||
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die "Failed to parse download URL")"
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"$srcdir/../bin/download_url_file.sh" "$download_url"
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