# Started from rust2rpm 28 output (rust2rpm -t fedora -V auto amdgpu_top),
# then modified for this package's specific needs. See inline comments
# documenting for further details on each deviation from the rust2rpm template.
#
# Why this is not a standard rust2rpm SPEC:
#   - amdgpu_top is a standalone binary application, not a Rust library,
#      so it is to be packaged as "amdgpu_top" (not "rust-amdgpu_top") without
#      the library subpackage that rust2rpm generates.
#   - It has a git dependency (libdrm-amdgpu-sys-rs) that requires a
#      manual [source] replacement in .cargo/config.toml (see %%prep).
#   - %%cargo_install fails due to that git dependency, so we install the
#      binary manually (see %%install).
#   - It links C libraries (libdrm, libX11, wayland) via FFI, which
#      rust2rpm does not detect, so those BuildRequires are added manually.

%bcond check 1

# amdgpu_top is a binary, prevent library files from being installed
%global cargo_install_lib 0

%global crate amdgpu_top

Name:           amdgpu_top
Version:        0.11.5
Release:        %autorelease
Summary:        Tool that displays AMDGPU usage gathered from performance counters

# Main project: MIT
# Vendored dependencies have varying licenses, see LICENSE.dependencies
# SPDX expression generated from cargo_license_summary output.
# To regenerate after a version update:
#   - Build with rpmbuild -bc, then read LICENSE.dependencies
#   - Or run %%cargo_license_summary and collect unique license entries

# Bundled fonts: OFL-1.1 (BIZ UDGothic)
# Vendored dependencies: Apache-2.0, BSL-1.0, CC0-1.0, ISC, Unicode-3.0, Zlib
#
# There are some files not covered by the LICENSE or LICENSE.dependencies file:
# W3C
# vendor/winit-0.30.13/src/keyboard.rs
#
# MPL-2.0
# vendor/uluru-3.1.0/LICENSE
# vendor/uluru-3.1.0/src/lib.rs
#
# Public Domain / LicenseRef-Fedora-Public-Domain
# vendor/tiff-0.11.3/tests/COPYRIGHT
License:        %{shrink:
                MIT
                AND Apache-2.0
                AND BSL-1.0
                AND CC0-1.0
                AND ISC
                AND OFL-1.1
                AND Unicode-3.0
                AND Zlib
                AND W3C
                AND MPL-2.0
                AND LicenseRef-Fedora-Public-Domain
                }
URL:            https://github.com/Umio-Yasuno/amdgpu_top
# NOTE: Pulling Source0 from GitHub (not crates.io via %%{crates_source})
# because the crates.io tarball does not include the git dependency (libdrm-amdgpu-sys-rs)
# This build expects such source layout.
Source0:        %{url}/archive/v%{version}/%{crate}-%{version}.tar.gz

# Vendor tarball of all Rust dependencies (required for offline builds).
# Generate with rust2rpm:
#   rust2rpm -t fedora -V auto amdgpu_top
# This produces amdgpu_top-%%{version}-vendor.tar.xz automatically.
#
# Manual alternative if rust2rpm is unavailable:
#   wget %%{url}/archive/refs/tags/v%%{version}.tar.gz -O amdgpu_top-%%{version}.tar.gz
#   tar -xf amdgpu_top-%%{version}.tar.gz
#   cd amdgpu_top-%%{version}
#   cargo vendor
#   tar -cJf ../amdgpu_top-%%{version}-vendor.tar.xz vendor/
Source1:        amdgpu_top-%{version}-vendor.tar.xz

ExclusiveArch:	x86_64

# Disable LTO to prevent rustc Internal Compiler Error in x11-dl
%global _lto_cflags %{nil}

BuildRequires:  cargo-rpm-macros >= 24

# System C libraries linked via FFI,
# therefore rust2rpm does NOT detect these because they are not Rust crate dependencies
BuildRequires:  libdrm-devel
BuildRequires:  libX11-devel
BuildRequires:  wayland-devel
BuildRequires:  gcc

%global _description %{expand:
Tool that displays AMDGPU usage. The tool displays information gathered
from performance counters (GRBM, GRBM2), sensors, fdinfo, gpu_metrics
and AMDGPU driver.}

%description %{_description}

%prep
%autosetup -n %{crate}-%{version} -p1 -a1
%cargo_prep -v vendor

# Remove pre-compiled binaries from vendored crates
find vendor -type f \( -name '*.wasm' -o -name '*.so' -o -name '*.dll' -o -name '*.o' \) -delete

# Clear Cargo checksums so it does not panic over the deleted binaries
sed -i 's/"files":{[^}]*}/"files":{}/' vendor/*/.cargo-checksum.json

# MANUAL STEP: Git dependency replacement (NOT generated by rust2rpm)
#
# amdgpu_top depends on libdrm-amdgpu-sys-rs via a git URL (with a pinned
# revision) in Cargo.toml instead of a crates.io dependency. Cargo vendor
# downloads this git source into the vendor directory, but cargo still tries
# to fetch it from git during the build unless we redirect it to the
# vendored copy. Offline builds have no network, so without this the build fails
#
# WHEN UPDATING TO A NEW VERSION:
#   - Find the new git revision in Cargo.lock:
#        grep -A5 "libdrm-amdgpu-sys-rs" Cargo.lock
#   -  Update BOTH occurrences of the revision below (the [source] key URL
#      AND the rev= line) to the new revision hash.
cat >> .cargo/config.toml << EOF
[source."git+https://github.com/Umio-Yasuno/libdrm-amdgpu-sys-rs?rev=c87eff736523054247f1192796a5f47560cd35db"]
git = "https://github.com/Umio-Yasuno/libdrm-amdgpu-sys-rs"
rev = "c87eff736523054247f1192796a5f47560cd35db"
replace-with = "vendored-sources"
EOF

%build
# Prevent rustc stack overflow when compiling auto-generated wayland-protocol bindings
export RUST_MIN_STACK=16777216

%cargo_build
%{cargo_license_summary}
%{cargo_license} > LICENSE.dependencies
%{cargo_vendor_manifest}

%install
# MANUAL STEP: Binary installation (NOT %%cargo_install)
#
# rust2rpm generates %%cargo_install here, but it fails for this package:
# the git dependency causes cargo install to attempt a git fetch even in
# offline mode. We install the binary directly instead. %%cargo_build
# produces the binary at target/rpm/amdgpu_top.
install -Dpm 0755 target/rpm/amdgpu_top %{buildroot}%{_bindir}/amdgpu_top

%if %{with check}
%check
%cargo_test
%endif

%files
%license LICENSE
%license LICENSE.dependencies
%license cargo-vendor.txt
%doc AUTHORS
%doc CHANGELOG.md
%doc README.md
%{_bindir}/amdgpu_top

%changelog
%autochangelog