feat(BSS-2): support spack fetch

packages/hxtorch/package.py

@@ -3,6 +3,7 @@
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
 import os
+import unittest.mock
 
 from spack import *
 from spack.util.environment import EnvironmentModifications
@@ -18,7 +19,7 @@ class Hxtorch(WafPackage):
 
     maintainers = ['emuller']
 
-    version('7.0-rc1-fixup2', branch='waf')
+    version('7.0-rc1-fixup2', tag='hxtorch-7.0-rc1-fixup2')
     version('7.0-rc1-fixup1', branch='waf')
 
     # compiler for the BrainScaleS-2 embedded processor ("PPU"); needed for
@@ -64,6 +65,33 @@ class Hxtorch(WafPackage):
     depends_on('yaml-cpp+shared', type=('build', 'link', 'run'))
     extends('python')
 
+    def do_fetch(self, mirror_only=False):
+        """Setup the project."""
+
+        self.stage.create()
+        self.stage.fetch(mirror_only)
+
+        # if fetcher didn't do anything, it's cached already
+        if not os.path.exists(self.stage.source_path):
+            return
+
+        with working_dir(self.stage.source_path):
+            waf = which('./waf')
+            waf('setup', '--repo-db-url=https://github.com/electronicvisions/projects',
+                '--clone-depth=2',
+                '--without-munge',
+                '--without-hxcomm-hostarq',
+                '--without-hxcomm-extoll',
+                '--project=hxtorch',
+                '--release-branch=ebrains-' + str(self.spec.version)
+            )
+
+        # in the configure step, we need access to all archived .git folders
+        def custom_archive(self, destination):
+            super(spack.fetch_strategy.GitFetchStrategy, self).archive(destination)
+        with unittest.mock.patch('spack.fetch_strategy.GitFetchStrategy.archive', new=custom_archive):
+            self.stage.cache_local()
+
     def _setup_common_env(self, env):
         # grenade needs to find some libraries for the JIT-compilation of
         # programs for BrainScaleS-2's embedded processor.
@@ -116,15 +144,7 @@ class Hxtorch(WafPackage):
 
     # override configure step as we perform a project setup first
     def configure(self, spec, prefix):
-        """Setup and configure the project."""
-
-        self.waf('setup', '--repo-db-url=https://github.com/electronicvisions/projects',
-            '--without-munge',
-            '--without-hxcomm-hostarq',
-            '--without-hxcomm-extoll',
-            '--project=hxtorch',
-            '--release-branch=ebrains-' + str(spec.version)
-         )
+        """Configure the project."""
 
         args = ['--prefix={0}'.format(self.prefix)]
         args += self.configure_args()