This is a preliminary WIP I'm putting up for feedback, it needs more work for sure before it can be approved (see the comments in the spec for details).

Taking this review.

Spec URL: https://dcavalca.fedorapeople.org/review/swiftlint/swiftlint.spec
SRPM URL: https://dcavalca.fedorapeople.org/review/swiftlint/swiftlint-0.53.0-1.fc40.src.rpm

Changelog:
- fix %doc usage
- do a release build by default

Spec URL: https://dcavalca.fedorapeople.org/review/swiftlint/swiftlint.spec
SRPM URL: https://dcavalca.fedorapeople.org/review/swiftlint/swiftlint-0.53.0-1.fc40.src.rpm

Changelog:
- rework bundled deps handling to autogenerate provides as well
- patch fallback library path to avoid segfault
- enable tests by default

Thanks for working on this; I've been wanting this tool available on Fedora since Swift became available. :)

There's three (likely all related issues remaining):
- the build isn't using the right cflags/ldflags and I can't find a sane way to pass them
- the debuginfo that's generated seems to be in dwarf 5 format and debugedit can't cope with it
- the resulting binary has some unnecessary rpath we're currently removing manually

debugedit is supposed to be able to cope with DWARF 5: https://src.fedoraproject.org/rpms/rpm/c/652537b1a5ac5c0e5b1974a4b31346db18a19d59

I'm trying this to get the right flags passed

%prep
echo -n 'swift build -v -c %{config} %{?_smp_build_ncpus:-j %{_smp_build_ncpus}} ' > build.sh
for flag in %build_cflags; do
  echo -n "-Xcc ${flag} " >> build.sh
done
for flag in %build_cxxflags; do
  echo -n "-Xcxx ${flag} " >> build.sh
done
for flag in %build_ldflags; do
  echo -n "-Xlinker ${flag} " >> build.sh
done

%build
sh -x build.sh

and it does "work" but the build ultimately fails with

/usr/libexec/swift/5.8.1/bin/swiftc -g -L /builddir/build/BUILD/SwiftLint-0.53.0/.build/aarch64-unknown-linux-gnu/release -o /builddir/build/BUILD/SwiftLint-0.53.0/.build/aarch64-unknown-linux-gnu/release/swiftlint -module-name swiftlint -emit-executable -Xlinker --gc-sections -Xlinker --defsym -Xlinker main=swiftlint_main -Xlinker '-rpath=$ORIGIN' @/builddir/build/BUILD/SwiftLint-0.53.0/.build/aarch64-unknown-linux-gnu/release/swiftlint.product/Objects.LinkFileList -target aarch64-unknown-linux-gnu -Xlinker -Wl,-z,relro -Xlinker -Wl,--as-needed -Xlinker -Wl,-z,now -Xlinker -flto=thin -Xlinker -Wl,--build-id=sha1 -Xcc -O2 -Xcc -flto=thin -Xcc -fexceptions -Xcc -g -Xcc -grecord-gcc-switches -Xcc -pipe -Xcc -Wall -Xcc -Werror=format-security -Xcc -Werror=implicit-function-declaration -Xcc -Werror=implicit-int -Xcc -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Xcc -Wp,-D_GLIBCXX_ASSERTIONS -Xcc --config -Xcc /usr/lib/rpm/redhat/redhat-hardened-clang.cfg -Xcc -fstack-protector-strong -Xcc -mbranch-protection=standard -Xcc -fasynchronous-unwind-tables -Xcc -fno-omit-frame-pointer -Xcc -mno-omit-leaf-frame-pointer -v -L /usr/libexec/swift/5.8.1/lib
Swift version 5.8.1 (swift-5.8.1-RELEASE)
Target: aarch64-unknown-linux-gnu
/usr/libexec/swift/5.8.1/bin/swift-autolink-extract @/tmp/TemporaryDirectory.1jtY4M/arguments-4662626656583931728.resp
error: autolink-extract command failed with exit code 1 (use -v to see invocation)
<unknown>:0: error: error opening input file '/builddir/build/BUILD/SwiftLint-0.53.0/.build/aarch64-unknown-linux-gnu/release/CYaml.build/src/api.c.o' (The file was not recognized as a valid object file
)
error: Bad exit status from /var/tmp/rpm-tmp.55d6Iz (%build)
    Bad exit status from /var/tmp/rpm-tmp.55d6Iz (%build)

(In reply to Neal Gompa from comment #7)
> debugedit is supposed to be able to cope with DWARF 5:
> https://src.fedoraproject.org/rpms/rpm/c/
> 652537b1a5ac5c0e5b1974a4b31346db18a19d59

For GCC generated DWARF5, llvm generates something debugedit cannot handle yet:
https://sourceware.org/bugzilla/show_bug.cgi?id=28728
Workaround is to use -gdwarf-4 till this is fixed.

For the record, the "right" way to pass the linker flags is

for flag in %(echo %build_ldflags | tr ',' ' '); do
  # These are passed directly to the linker, not to the compiler
  if [ "$flag" != '-Wl' ]; then
    echo -n "-Xlinker ${flag} " >> build.sh
  fi
done

but this still doesn't build successfully

Spec URL: https://dcavalca.fedorapeople.org/review/swiftlint/swiftlint.spec
SRPM URL: https://dcavalca.fedorapeople.org/review/swiftlint/swiftlint-0.53.0-1.fc40.src.rpm

Changelog:
- pass build id ldflags and force DRAWF4
- enable debug package generation
- enable parallel build

With the latest update I think this is ready for review.

Spec review:

> Source:         %{forgeurl}/archive/%{version}/%{srcname}-%{version}.tar.gz
> # Build cache of the bundled dependencies so we can build offline
> Source:         %{srcname}-%{version}-bundled-deps.tar.gz
> Source:         %{srcname}-%{version}-bundled-provides.txt
> Source:         swiftlint-get-bundled-deps.sh

As you use the numbered Source variables in the spec, please use numbered Sources too.

Spec URL: https://dcavalca.fedorapeople.org/review/swiftlint/swiftlint.spec
SRPM URL: https://dcavalca.fedorapeople.org/review/swiftlint/swiftlint-0.53.0-1.fc40.src.rpm

Changelog:
- use numbered Sources

Created attachment 1993655 [details]
The .spec file difference from Copr build 6493717 to 6520906

> # Swift only supports these arches
> ExclusiveArch:  x86_64 aarch64

Future note: when designing macros for packaging swift stuff, don't forget to macroize this.

Review notes:

* Package follows Fedora Packaging Guidelines (well, as well as it can given the lack of Swift guidelines so far)
* Package builds and installs
* Package licensing is correctly handled
* No serious issues from rpmlint (modulo weirdness caused by... well this package)

PACKAGE APPROVED.

The Pagure repository was created at https://src.fedoraproject.org/rpms/swiftlint

FEDORA-2023-5b1548897b has been submitted as an update to Fedora 40. https://bodhi.fedoraproject.org/updates/FEDORA-2023-5b1548897b

FEDORA-2023-5b1548897b has been pushed to the Fedora 40 stable repository.
If problem still persists, please make note of it in this bug report.

FEDORA-2023-db294cb0c6 has been submitted as an update to Fedora 39. https://bodhi.fedoraproject.org/updates/FEDORA-2023-db294cb0c6

FEDORA-2023-9db2651150 has been submitted as an update to Fedora 38. https://bodhi.fedoraproject.org/updates/FEDORA-2023-9db2651150

FEDORA-2023-9db2651150 has been pushed to the Fedora 38 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf install --enablerepo=updates-testing --refresh --advisory=FEDORA-2023-9db2651150 \*`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2023-9db2651150

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

FEDORA-2023-db294cb0c6 has been pushed to the Fedora 39 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf install --enablerepo=updates-testing --refresh --advisory=FEDORA-2023-db294cb0c6 \*`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2023-db294cb0c6

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

FEDORA-EPEL-2023-21db6471b3 has been submitted as an update to Fedora EPEL 9. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-21db6471b3

FEDORA-EPEL-2023-21db6471b3 has been pushed to the Fedora EPEL 9 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-21db6471b3

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

FEDORA-EPEL-2023-21db6471b3 has been pushed to the Fedora EPEL 9 stable repository.
If problem still persists, please make note of it in this bug report.

FEDORA-2023-9db2651150 has been pushed to the Fedora 38 stable repository.
If problem still persists, please make note of it in this bug report.

FEDORA-2023-db294cb0c6 has been pushed to the Fedora 39 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf install --enablerepo=updates-testing --refresh --advisory=FEDORA-2023-db294cb0c6 \*`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2023-db294cb0c6

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

FEDORA-2023-db294cb0c6 has been pushed to the Fedora 39 stable repository.
If problem still persists, please make note of it in this bug report.