Support the extras configuration option of tox in %pyproject_buildrequires -t

Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1877977

pyproject-rpm-macros.spec

@@ -46,7 +46,7 @@ BuildRequires: (python3dist(importlib-metadata) if python3 < 3.8)
 BuildRequires: python3dist(pip)
 BuildRequires: python3dist(setuptools)
 BuildRequires: python3dist(toml)
-BuildRequires: python3dist(tox-current-env) >= 0.0.2
+BuildRequires: python3dist(tox-current-env) >= 0.0.3
 BuildRequires: python3dist(wheel)
 %endif
 
@@ -96,6 +96,8 @@ export HOSTNAME="rpmbuild"  # to speedup tox in network-less mock, see rhbz#1856
 %changelog
 * Tue Sep 29 2020 Lumír Balhar <lbalhar@redhat.com> - 0-30
 - Process RECORD files in %%pyproject_install and remove them
+- Support the extras configuration option of tox in %%pyproject_buildrequires -t
+- Fixes: rhbz#1877977
 
 * Wed Sep 23 2020 Miro Hrončok <mhroncok@redhat.com> - 0-29
 - Check the requirements after installing "requires_for_build_wheel"

pyproject_buildrequires.py

@@ -52,17 +52,25 @@ class Requirements:
     def __init__(self, get_installed_version, extras='',
                  generate_extras=False, python3_pkgversion='3'):
         self.get_installed_version = get_installed_version
+        self.extras = set()
 
         if extras:
-            self.marker_envs = [{'extra': e.strip()} for e in extras.split(',')]
+            self.add_extras(*extras.split(','))
-        else:
-            self.marker_envs = [{'extra': ''}]
 
         self.missing_requirements = False
 
         self.generate_extras = generate_extras
         self.python3_pkgversion = python3_pkgversion
 
+    def add_extras(self, *extras):
+        self.extras |= set(e.strip() for e in extras)
+
+    @property
+    def marker_envs(self):
+        if self.extras:
+            return [{'extra': e} for e in sorted(self.extras)]
+        return [{'extra': ''}]
+
     def evaluate_all_environamnets(self, requirement):
         for marker_env in self.marker_envs:
             if requirement.marker.evaluate(environment=marker_env):
@@ -232,12 +240,14 @@ def parse_tox_requires_lines(lines):
 
 
 def generate_tox_requirements(toxenv, requirements):
-    requirements.add('tox-current-env >= 0.0.2', source='tox itself')
+    requirements.add('tox-current-env >= 0.0.3', source='tox itself')
     requirements.check(source='tox itself')
-    with tempfile.NamedTemporaryFile('r') as depfile:
+    with tempfile.NamedTemporaryFile('r') as deps, tempfile.NamedTemporaryFile('r') as extras:
         r = subprocess.run(
-            [sys.executable, '-m', 'tox', '--print-deps-to-file',
+            [sys.executable, '-m', 'tox',
-             depfile.name, '-qre', toxenv],
+             '--print-deps-to', deps.name,
+             '--print-extras-to', extras.name,
+             '-qre', toxenv],
             check=False,
             encoding='utf-8',
             stdout=subprocess.PIPE,
@@ -247,8 +257,9 @@ def generate_tox_requirements(toxenv, requirements):
             print_err(r.stdout, end='')
         r.check_returncode()
 
-        deplines = depfile.read().splitlines()
+        deplines = deps.read().splitlines()
         packages = parse_tox_requires_lines(deplines)
+        requirements.add_extras(*extras.read().splitlines())
         requirements.extend(packages,
                             source=f'tox --print-deps-only: {toxenv}')
 

pyproject_buildrequires_testcases.yaml

@@ -290,7 +290,7 @@ Tox dependencies:
     setuptools: 50
     wheel: 1
     tox: 3.5.3
-    tox-current-env: 0.0.2
+    tox-current-env: 0.0.3
   toxenv: py3
   setup.py: |
     from setuptools import setup
@@ -312,8 +312,52 @@ Tox dependencies:
     python3dist(setuptools) >= 40.8
     python3dist(wheel)
     python3dist(wheel)
-    python3dist(tox-current-env) >= 0.0.2
+    python3dist(tox-current-env) >= 0.0.3
     python3dist(toxdep1)
     python3dist(toxdep2)
     python3dist(inst)
   result: 0
+
+Tox extras:
+  installed:
+    setuptools: 50
+    wheel: 1
+    tox: 3.5.3
+    tox-current-env: 0.0.3
+  toxenv: py3
+  setup.py: |
+    from setuptools import setup
+    setup(
+        name='test',
+        version='0.1',
+        install_requires=['inst'],
+        extras_require={
+            'extra1':  ['dep11 > 11', 'dep12'],
+            'extra2': ['dep21', 'dep22', 'dep23'],
+            'nope': ['nopedep'],
+        }
+    )
+  tox.ini: |
+    [tox]
+    envlist = py36,py37,py38
+    [testenv]
+    deps =
+        toxdep
+    extras =
+        extra2
+        extra1
+    commands =
+        true
+  expected: |
+    python3dist(setuptools) >= 40.8
+    python3dist(wheel)
+    python3dist(wheel)
+    python3dist(tox-current-env) >= 0.0.3
+    python3dist(toxdep)
+    python3dist(inst)
+    python3dist(dep11) > 11
+    python3dist(dep12)
+    python3dist(dep21)
+    python3dist(dep22)
+    python3dist(dep23)
+  result: 0