rust-packaging/0013-Implement-__cargo_skip_build.patch

From 7b06496a5c1ded5e3cf59d6af0e757974c6ff704 Mon Sep 17 00:00:00 2001
From: Igor Gnatenko <ignatenkobrain@fedoraproject.org>
Date: Sat, 8 Jun 2019 19:35:38 +0200
Subject: [PATCH 13/14] Implement %__cargo_skip_build

We need to have an easy way how to skip doing 'cargo build' to speedup a
module builds.

Signed-off-by: Igor Gnatenko <ignatenkobrain@fedoraproject.org>
---
 data/macros.cargo            | 80 ++++++++++++++++++++++++------------
 rust2rpm/templates/main.spec | 34 ++++++++-------
 2 files changed, 72 insertions(+), 42 deletions(-)

diff --git a/data/macros.cargo b/data/macros.cargo
index a60289a..961732d 100644
--- a/data/macros.cargo
+++ b/data/macros.cargo
@@ -10,6 +10,21 @@
 
 %cargo_registry %{_datadir}/cargo/registry
 
+# If crate not in _build_crates and _module_build is set, we should skip the build
+%__cargo_skip_build %{lua:
+local crate = rpm.expand('%{crate}')
+local build_crate = false
+for w in rpm.expand('%{?_build_crates}'):gmatch('%S+') do
+  if w == crate then
+    build_crate = true
+    break
+  end
+end
+if (rpm.expand('%{defined _module_build}') ~= '0' and not build_crate) then
+  print(1)
+else
+  print(0)
+end}
 %__cargo_is_lib() %__cargo_inspector --target-kinds Cargo.toml | grep -q -F -x "$(printf 'lib\\\nrlib\\\nproc-macro')"
 %__cargo_is_bin() %__cargo_inspector --target-kinds Cargo.toml | grep -q -F -x bin
 
@@ -49,27 +64,35 @@ EOF\
 }
 
 %cargo_generate_buildrequires(af:) \
-%{__cargo_inspector} -BR %{__cargo_parse_opts %{-a} %{-f:-f%{-f*}}} Cargo.toml \
-%if %{with check} \
-%{__cargo_inspector} -TR Cargo.toml \
+%if ! 0%{?__cargo_skip_build} \
+  %{__cargo_inspector} -BR %{__cargo_parse_opts %{-a} %{-f:-f%{-f*}}} Cargo.toml \
+  %if %{with check} \
+    %{__cargo_inspector} -TR Cargo.toml \
+  %endif \
 %endif
 
-%cargo_build(naf:) %{shrink:\
-%{__cargo} build                                   \
-  %{__cargo_common_opts}                           \
-  --release                                        \
-  %{__cargo_parse_opts %{-n} %{-a} %{-f:-f%{-f*}}} \
-  %*                                               \
-}
+%cargo_build(naf:) \
+%if ! 0%{?__cargo_skip_build} \
+  %{shrink:\
+    %{__cargo} build                                   \
+      %{__cargo_common_opts}                           \
+      --release                                        \
+      %{__cargo_parse_opts %{-n} %{-a} %{-f:-f%{-f*}}} \
+      %*                                               \
+  } \
+%endif
 
-%cargo_test(naf:) %{shrink:\
-%{__cargo} test                                    \
-  %{__cargo_common_opts}                           \
-  --release                                        \
-  --no-fail-fast                                   \
-  %{__cargo_parse_opts %{-n} %{-a} %{-f:-f%{-f*}}} \
-  %*                                               \
-}
+%cargo_test(naf:) \
+%if ! 0%{?__cargo_skip_build} \
+  %{shrink:\
+    %{__cargo} test                                    \
+      %{__cargo_common_opts}                           \
+      --release                                        \
+      --no-fail-fast                                   \
+      %{__cargo_parse_opts %{-n} %{-a} %{-f:-f%{-f*}}} \
+      %*                                               \
+  } \
+%endif
 
 %cargo_install(t:naf:) (\
 set -eu                                                             \
@@ -88,15 +111,18 @@ if %__cargo_is_lib; then                                            \
   %{__rm} -f $REG_DIR/Cargo.toml.{orig,deps}                        \
   echo '{"files":{},"package":""}' > $REG_DIR/.cargo-checksum.json  \
 fi \
-if %__cargo_is_bin; then                                            \
-  %{shrink:%{__cargo} install                                       \
-    %{__cargo_common_opts}                                          \
-    --path .                                                        \
-    %{__cargo_parse_opts %{-n} %{-a} %{-f:-f%{-f*}}}                \
-    %*                                                              \
-  }\
-  %{__rm} %{buildroot}%{_prefix}/.crates.toml                       \
-fi \
+%if ! %__cargo_skip_build \
+  if %__cargo_is_bin; then                                          \
+    %{shrink:\
+      %{__cargo} install                                            \
+        %{__cargo_common_opts}                                      \
+        --path .                                                    \
+        %{__cargo_parse_opts %{-n} %{-a} %{-f:-f%{-f*}}}            \
+        %*                                                          \
+    } \
+    %{__rm} %{buildroot}%{_prefix}/.crates.toml                     \
+  fi \
+%endif \
 )
 
 %__cargo_feature_from_name(n:) %{lua:
diff --git a/rust2rpm/templates/main.spec b/rust2rpm/templates/main.spec
index 660bb60..69d23d7 100644
--- a/rust2rpm/templates/main.spec
+++ b/rust2rpm/templates/main.spec
@@ -42,26 +42,28 @@ ExclusiveArch:  %{rust_arches}
 
 BuildRequires:  rust-packaging
 {% if not generate_buildrequires %}
-{% if not all_features %}
-{% set buildrequires = normalize_deps(md.requires("default", resolve=True))|sort %}
-{% else %}
-{% set buildrequires = normalize_deps(md.all_dependencies)|sort %}
-{% set cargo_args = " -a" %}
-{% endif %}
-{% for req in buildrequires %}
+%if ! %{__cargo_skip_build}
+  {% if not all_features %}
+    {% set buildrequires = normalize_deps(md.requires("default", resolve=True))|sort %}
+  {% else %}
+    {% set buildrequires = normalize_deps(md.all_dependencies)|sort %}
+    {% set cargo_args = " -a" %}
+  {% endif %}
+  {% for req in buildrequires %}
 BuildRequires:  {{ req }}
-{% endfor %}
-{% set testrequires = normalize_deps(md.dev_dependencies)|sort %}
-{% if testrequires|length > 0 %}
+  {% endfor %}
+  {% set testrequires = normalize_deps(md.dev_dependencies)|sort %}
+  {% if testrequires|length > 0 %}
 %if %{with check}
-  {% for req in testrequires %}
+    {% for req in testrequires %}
 BuildRequires:  {{ req }}
-  {% endfor %}
+    {% endfor %}
 %endif
-{% endif %}
-{% for req in to_list(distconf.get("buildrequires"))|sort %}
+  {% endif %}
+  {% for req in to_list(distconf.get("buildrequires"))|sort %}
 BuildRequires:  {{ req }}
-{% endfor %}
+  {% endfor %}
+%endif
 {% endif %}
 
 %global _description %{expand:
@@ -75,6 +77,7 @@ BuildRequires:  {{ req }}
 %description %{_description}
 
 {% if include_main %}
+%if ! %{__cargo_skip_build}
 %package     -n %{crate}
 Summary:        %{summary}
   {% if rust_group is defined %}
@@ -96,6 +99,7 @@ Requires:       {{ req }}
   {% for bin in bins %}
 %{_bindir}/{{ bin.name }}
   {% endfor %}
+%endif
 
 {% endif -%}
 
-- 
2.22.0.rc3