From 700c18495a3a44469d392338a60c7de6eb26354f Mon Sep 17 00:00:00 2001
From: Davide Cavalca <dcavalca@fedoraproject.org>
Date: Fri, 22 Oct 2021 10:28:04 -0700
Subject: [PATCH] Build for epel8

---
 .gitignore               |  1 +
 rust-resctl-bench.spec   | 17 +++++++++++++++++
 sources                  |  1 +
 update-vendor-tarball.sh | 25 +++++++++++++++++++++++++
 4 files changed, 44 insertions(+)
 create mode 100755 update-vendor-tarball.sh

diff --git a/.gitignore b/.gitignore
index 2829c5e..f4d7de6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 /resctl-bench-2.1.2.crate
+/resctl-bench-2.1.2-vendor.tar.gz
diff --git a/rust-resctl-bench.spec b/rust-resctl-bench.spec
index 549de84..9f7a40a 100644
--- a/rust-resctl-bench.spec
+++ b/rust-resctl-bench.spec
@@ -4,6 +4,13 @@
 
 %global crate resctl-bench
 
+%if 0%{?el8}
+# el8 doesn't have these macros
+%global __crates_url https://crates.io/api/v1/crates/
+%global crates_source %{__crates_url}%{crate}/%{version}/download#/%{crate}-%{version}.crate
+%global version_no_tilde %{version}
+%endif
+
 Name:           rust-%{crate}
 Version:        2.1.2
 Release:        %autorelease
@@ -13,10 +20,16 @@ Summary:        Whole system resource control benchmarks with realistic scenario
 License:        ASL 2.0 and BSD and MIT and zlib
 URL:            https://crates.io/crates/resctl-bench
 Source:         %{crates_source}
+# Vendored dependencies for EPEL, update with ./update-vendor-tarball.sh
+Source1:        %{crate}-%{version}-vendor.tar.gz
 
 ExclusiveArch:  %{rust_arches}
 
+%if 0%{?el8}
+BuildRequires:  rust-toolset
+%else
 BuildRequires:  rust-packaging
+%endif
 
 %global _description %{expand:
 resctl-bench is a collection of whole-system benchmarks to evaluate resource
@@ -52,10 +65,14 @@ Requires:       rd-hashd = %{version}
 
 %prep
 %autosetup -n %{crate}-%{version_no_tilde} -p1
+%if 0%{?el8}
+%cargo_prep -V 1
+%else
 %cargo_prep
 
 %generate_buildrequires
 %cargo_generate_buildrequires
+%endif
 
 %build
 %cargo_build
diff --git a/sources b/sources
index 8e71d81..78f2783 100644
--- a/sources
+++ b/sources
@@ -1 +1,2 @@
 SHA512 (resctl-bench-2.1.2.crate) = 55e56c9bf5d6c2d1c944291ad8908cff5a5e37e51bb8b4baa98dca5515773d22f509a14e9e85cd11066d5011a6390fbaec5d65c029b9ab253493004c937840eb
+SHA512 (resctl-bench-2.1.2-vendor.tar.gz) = 5797a8d3c1524df6c78463d067bbb97e22a68c65f1a50b039636280c07f1a9f878d3f0483dede30070f5909294afa5473c6f5776bccff39bf4fb872b4bee2115
diff --git a/update-vendor-tarball.sh b/update-vendor-tarball.sh
new file mode 100755
index 0000000..34c64dd
--- /dev/null
+++ b/update-vendor-tarball.sh
@@ -0,0 +1,25 @@
+#!/bin/sh
+
+name='resctl-bench'
+specfile="rust-${name}.spec"
+version=$(rpm -q --qf '%{VERSION}\n' --specfile "$specfile" | head -1)
+nv="${name}-${version}"
+crate="${nv}.crate"
+vendor_tarball="${nv}-vendor.tar.gz"
+
+if [ -f "$vendor_tarball" ]; then
+  echo "${vendor_tarball} already exists, aborting"
+  exit 1
+fi
+
+[ -f "$crate" ] || spectool -g "$specfile"
+tardir="$PWD"
+workdir=$(mktemp -d)
+trap 'rm -rf "$workdir"' EXIT
+
+tar xvzf "$tardir/$crate" -C "$workdir"
+(cd "${workdir}/${nv}" && \
+  cargo vendor && \
+  tar cvzf "${tardir}/${vendor_tarball}" vendor/)
+
+exit 0