#!/bin/sh
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# Find the latest (tarball) release under original site
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#
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# Copyright 2016-2023 Jim Klimov
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#
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BASE_URL="https://get.jenkins.io/war/"
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DL_PAGE_URL="https://www.jenkins.io/download/"
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echo "=== Checking latest numbered release under $BASE_URL..."
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UPSTREAM_VERSION="`wget -q -O - "$BASE_URL" 2>/dev/null | egrep 'href="[0-9]*\.[0-9]*/"' | grep -vw latest | sed 's,^.*a href="\([0-9]*\.[0-9]*\)/*".*,\1,' | sort -t. -k1n,1n -k2n,2n | tail -1`" \
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&& [ -n "$UPSTREAM_VERSION" ] && echo "Latest UPSTREAM_VERSION = $UPSTREAM_VERSION" \
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|| echo "WARNING: Could not fetch an UPSTREAM_VERSION, check manually at $DL_PAGE_URL " >&2
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UPSTREAM_CHECKSUM="`wget -O - "$BASE_URL/latest/jenkins.war.sha256" 2>/dev/null | awk '{print $1}'`" \
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&& [ -n "$UPSTREAM_CHECKSUM" ] && echo "Latest SHA256SUM = sha256:$UPSTREAM_CHECKSUM" \
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|| echo "WARNING: Could not fetch an UPSTREAM_CHECKSUM" >&2
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MF="`dirname $0`/Makefile"
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echo "=== Data in current ${MF}:"
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egrep '(^[\t\ ]*(COMPONENT_[A-Z]*_VERSION.*=|JENKINS_RELEASE.*=)|sha256:)' "${MF}"
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MAKEFILE_CHECKSUM="`grep 'sha256:' ${MF} | sed 's,^.*sha256:,,'`"
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if [ "$MAKEFILE_CHECKSUM" = "$UPSTREAM_CHECKSUM" ] ; then
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echo "=== MAKEFILE_CHECKSUM matches the UPSTREAM_CHECKSUM currently"
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fi
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echo "=== Please edit the Makefile and commit like this (if needed):"
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echo " git add -p Makefile; git commit -m 'Bump jenkins-core-weekly to v${UPSTREAM_VERSION}'"
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