Add herwig3 (#19406)

* Add recipe for qgraf

* Revert "Add recipe for qgraf"

This reverts commit 76783f73867a32b4a96e980e31a433ed3c0037fd.

* Add herwig3

* Prepare fixes based on MR (needs checking)

* Set all dependencies (except python) as build-type

* OK now

* Move import to the top of the file

* Fix dependency name

Co-authored-by: Ivan Razumov <ivan.razumov@cern.ch>

1 files changed, 97 insertions, 0 deletions

diff --git a/var/spack/repos/builtin/packages/herwig3/package.py b/var/spack/repos/builtin/packages/herwig3/package.py
new file mode 100644
index 0000000000..6f529c10bf
--- /dev/null
+++ b/var/spack/repos/builtin/packages/herwig3/package.py
@@ -0,0 +1,97 @@
+# Copyright 2013-2020 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack import *
+import shutil
+
+
+class Herwig3(AutotoolsPackage):
+    """Herwig is a multi-purpose particle physics event generator."""
+
+    homepage = "https://herwig.hepforge.org"
+    url      = "https://herwig.hepforge.org/downloads/Herwig-7.2.1.tar.bz2"
+
+    version('7.2.1', sha256='d4fff32f21c5c08a4b2e563c476b079859c2c8e3b78d853a8a60da96d5eea686')
+
+    depends_on('autoconf', type='build')
+    depends_on('automake', type='build')
+    depends_on('libtool',  type='build')
+    depends_on('m4',       type='build')
+    depends_on('lhapdf',   type='link')
+    depends_on('thepeg@2.2.1', when='@7.2.1', type='link')
+    depends_on('boost', type='link')
+    depends_on('python', type=('build', 'run'))
+    depends_on('gsl', type='link')
+    depends_on('fastjet', type='link')
+    depends_on('vbfnlo@3:', type='link')
+    depends_on('madgraph5amc', type='link')
+    depends_on('njet', type='link')
+    depends_on('py-gosam', type='link', when='^python@2.7:2.7.99')
+    depends_on('gosam-contrib', type='link')
+    depends_on('openloops', type='link')
+
+    force_autoreconf = True
+
+    def autoreconf(self, spec, prefix):
+        autoreconf('--install', '--verbose', '--force')
+
+    @run_before('build')
+    def install_lhapdfsets(self):
+        mkdirp(self.prefix.tmppdfsets)
+        lhapdf = which('lhapdf')
+        if self.spec.satisfies('@7.2.0:'):
+            lhapdf("--pdfdir=" + self.prefix.tmppdfsets,
+                   # "--source=/cvmfs/sft.cern.ch/lcg/external/lhapdfsets/current",
+                   # "--listdir=/cvmfs/sft.cern.ch/lcg/external/lhapdfsets/current",
+                   "install", "MHT2014lo68cl", "MMHT2014nlo68cl",
+                   "CT14lo", "CT14nlo")
+
+    def configure_args(self):
+        args = ['--with-gsl=' + self.spec['gsl'].prefix,
+                '--with-thepeg=' + self.spec['thepeg'].prefix,
+                '--with-thepeg-headers=' + self.spec['thepeg'].prefix.include,
+                '--with-fastjet=' + self.spec['fastjet'].prefix,
+                '--with-boost=' + self.spec['boost'].prefix,
+                '--with-madgraph=' + self.spec['madgraph5amc'].prefix,
+                '--with-openloops=' + self.spec['openloops'].prefix,
+                '--with-gosam-contrib=' + self.spec['gosam-contrib'].prefix,
+                '--with-njet=' + self.spec['njet'].prefix,
+                '--with-vbfnlo=' + self.spec['vbfnlo'].prefix]
+
+        if self.spec.satisfies('^python@2.7:2.7.99'):
+            args.append('--with-gosam=' + self.spec['gosam'].prefix)
+
+        return args
+
+    def flag_handler(self, name, flags):
+        if name == 'fcflags':
+            flags.append('-std=legacy')
+            return (None, flags, None)
+        elif name in ['cflags', 'cxxflags', 'cppflags']:
+            return (None, flags, None)
+
+        return (flags, None, None)
+
+    def setup_build_environment(self, env):
+        thepeg_home = self.spec['thepeg'].prefix
+        env.prepend_path('LD_LIBRARY_PATH', thepeg_home.lib.ThePEG)
+        env.set('LHAPDF_DATA_PATH', self.prefix.tmppdfsets)
+        env.set('HERWIGINCLUDE', '-I' + self.prefix.include)
+        env.set('BOOSTINCLUDE', '-I' + self.spec['boost'].prefix.include)
+        env.set('HERWIGINSTALL', self.prefix)
+
+    def build(self, spec, prefix):
+        make()
+        with working_dir('MatrixElement/FxFx'):
+            make()
+
+    def install(self, spec, prefix):
+        make('install')
+        with working_dir('MatrixElement/FxFx'):
+            make('install')
+
+    @run_after('install')
+    def remove_lhapdfsets(self):
+        shutil.rmtree(self.prefix.tmppdfsets)