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Implement RPM spec generation
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‎generate-rpm-spec.sh‎

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#!/bin/sh
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set -eu
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if [[ $# -lt 1 ]]; then
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echo error: Version must be speficied on command-line >&2
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exit 1
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fi
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version="$1"
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out=rpm
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if [[ $# -gt 1 ]]; then
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out="$2"
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else
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mkdir -p rpm/
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fi
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rm -rf archive/
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./downstream.sh archive
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(
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sed -n '/^Source:.*tar.zst$/q;p' javapackages-bootstrap.spec
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./downstream.sh source-list
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sed -n '/^Source:.*tar.zst$/{:x;n;/^Source:.*tar.zst$/bx;:y;p;n;by;}' javapackages-bootstrap.spec
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) >$out/javapackages-bootstrap.spec
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./mbi.sh licensing >$out/javapackages-bootstrap-PACKAGE-LICENSING
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sed -i "s/^License:.*/$(sed -n /^License:/p $out/javapackages-bootstrap-PACKAGE-LICENSING)/" $out/javapackages-bootstrap.spec
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git archive HEAD --prefix javapackages-bootstrap-$version/ | zstd -12 >archive/javapackages-bootstrap-$version.tar.zst
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cp archive/* $out/
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(cd ./archive && sha512sum --tag javapackages-bootstrap-$version.tar.zst) >$out/sources
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./downstream.sh source-manifest >>$out/sources
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sed -i "s/^Version:.*/Version: $version/" $out/javapackages-bootstrap.spec

‎javapackages-bootstrap.spec‎

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# Exclude automatically generated requires on java interpreter which is not
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# owned by any package
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%global __requires_exclude ^%{_jvmdir}/java
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# Don't run OSGi dependency generators on private (bundled) JARs
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%global __requires_exclude_from \\.jar$
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%global __provides_exclude_from \\.jar$
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# Generated list of bundled packages
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%global _local_file_attrs local_generator
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%global __local_generator_provides cat %{_builddir}/%{buildsubdir}/bundled-provides.txt
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%global __local_generator_path ^%{metadataPath}/.*$
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%global debug_package %{nil}
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%global javaHomePath %{_jvmdir}/java-21-openjdk
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%global mavenHomePath %{_datadir}/%{name}
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%global metadataPath %{mavenHomePath}/maven-metadata
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%global artifactsPath %{_prefix}/lib
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%global launchersPath %{_libexecdir}/%{name}
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Name: javapackages-bootstrap
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Version: [...]
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Release: %autorelease
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Summary: A means of bootstrapping Java Packages Tools
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# For detailed info see the file javapackages-bootstrap-PACKAGE-LICENSING
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License: [...]
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URL: https://github.com/fedora-java/javapackages-bootstrap
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ExclusiveArch: %{java_arches}
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Source: https://github.com/fedora-java/javapackages-bootstrap/releases/download/%{version}/javapackages-bootstrap-%{version}.tar.zst#
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# License breakdown
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Source: javapackages-bootstrap-PACKAGE-LICENSING
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# To obtain the following sources:
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# tar -xf ${name}-${version}.tar.zst
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# pushd ${name}-${version}
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# ./downstream.sh clone
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# ./downstream.sh prep
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# ./downstream.sh archive
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# The results are in the archive directory
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Source: [...].tar.zst
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BuildRequires: byaccj
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BuildRequires: gcc
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BuildRequires: java-21-openjdk-devel
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BuildRequires: jurand
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BuildRequires: rpm-devel
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Requires: bash
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Requires: coreutils
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Requires: java-21-openjdk-devel
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Requires: procps-ng
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Requires: lujavrite%{?_isa}
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Requires: javapackages-common
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%description
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In a nutshell, Java Packages Bootstrap (JPB) is a standalone build of all Java
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software packages that are required for Java Packages Tools (JPT) to work.
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In order to achieve reliable and reproducible builds of Java packages while
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meeting Fedora policy that requires everything to be built from source, without
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using prebuilt binary artifacts, it is necessary to build the packages in a
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well-defined, acyclic order. Dependency cycles between packages are the biggest
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obstacle to achieving this goal and JPT is the biggest offender -- it requires
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more than a hundred of Java packages, all of which in turn build-require JPT.
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JPB comes with a solution to this problem -- it builds everything that JPT needs
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to work, without reliance on any Java software other than OpenJDK. JPT can
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depend on JPB for everything, without depending on any other Java packages. For
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example, JPB contains embedded version of XMvn, removing dependency of JPT on
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XMvn, allowing JPT to be used before one builds XMvn package.
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%prep
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%autosetup -p1 -C
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mkdir archive/
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cp %{sources} archive/
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./downstream.sh prep-from-archive
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%build
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JAVA_HOME=%{javaHomePath} ./mbi.sh build -parallel
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%install
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JAVA_HOME=%{javaHomePath} ./mbi.sh dist \
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-javaCmdPath=%{javaHomePath}/bin/java \
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-basePackageName=%{name} \
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-installRoot=%{buildroot} \
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-mavenHomePath=%{mavenHomePath} \
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-metadataPath=%{metadataPath} \
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-artifactsPath=%{artifactsPath} \
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-launchersPath=%{launchersPath} \
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-licensesPath=%{_licensedir}/%{name} \
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install -D -p -m 644 downstream/xmvn-generator/src/main/lua/xmvn-generator.lua %{buildroot}%{_rpmluadir}/%{name}-generator.lua
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install -D -p -m 644 downstream/xmvn-generator/src/main/rpm/macros.xmvngen %{buildroot}%{_rpmmacrodir}/macros.jpbgen
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install -D -p -m 644 downstream/xmvn-generator/src/main/rpm/macros.xmvngenhook %{buildroot}%{_sysconfdir}/rpm/macros.jpbgenhook
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install -D -p -m 644 downstream/xmvn-generator/src/main/rpm/xmvngen.attr %{buildroot}%{_fileattrsdir}/jpbgen.attr
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echo '
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%%__xmvngen_debug 1
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%%__xmvngen_libjvm %{javaHomePath}/lib/server/libjvm.so
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%%__xmvngen_classpath %{artifactsPath}/%{name}/xmvn-generator.jar:%{artifactsPath}/%{name}/asm.jar:%{artifactsPath}/%{name}/commons-compress.jar
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%%__xmvngen_provides_generators org.fedoraproject.xmvn.generator.jpms.JPMSGeneratorFactory
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%%__xmvngen_requires_generators %%{nil}
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%%__xmvngen_post_install_hooks org.fedoraproject.xmvn.generator.transformer.TransformerHookFactory
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%%jpb_env PATH=/usr/libexec/javapackages-bootstrap:$PATH
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' >%{buildroot}%{_rpmmacrodir}/macros.jpbgen
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sed -i s/xmvn-generator/%{name}-generator/ %{buildroot}%{_sysconfdir}/rpm/macros.jpbgenhook
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sed -i s/xmvn-generator/%{name}-generator/ %{buildroot}%{_fileattrsdir}/jpbgen.attr
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sed -i s/_xmvngen_/_jpbgen_/ %{buildroot}%{_fileattrsdir}/jpbgen.attr
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# Dynamically generate bundled Provides
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./downstream.sh bundled-provides >bundled-provides.txt
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%check
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%{buildroot}%{launchersPath}/xmvn --version
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%files
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%{mavenHomePath}
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%{metadataPath}/*
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%{artifactsPath}/*
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%{launchersPath}/*
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%{_rpmluadir}/*
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%{_rpmmacrodir}/*
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%{_fileattrsdir}/*
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%{_sysconfdir}/rpm/*
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%license %{_licensedir}/%{name}
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%doc README.md
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%doc AUTHORS
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%changelog
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%autochangelog

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