add Arch Linux compatibility for OS dependency resolution

easybuild/framework/easyconfig/constants.py

@@ -37,7 +37,7 @@
 
 from easybuild.base import fancylogger
 from easybuild.tools.build_log import print_warning
-from easybuild.tools.systemtools import KNOWN_ARCH_CONSTANTS, get_os_name, get_os_type, get_os_version
+from easybuild.tools.systemtools import ARCH_DISTROS, KNOWN_ARCH_CONSTANTS, get_os_name, get_os_type, get_os_version
 
 
 _log = fancylogger.getLogger('easyconfig.constants', fname=False)
@@ -88,3 +88,20 @@ def _get_arch_constant():
 # Add EasyConfig constants to export list
 globals().update({name: value for name, (value, _) in EASYCONFIG_CONSTANTS.items()})
 __all__ = ['EXTERNAL_MODULE_MARKER', 'EASYCONFIG_CONSTANTS'] + list(EASYCONFIG_CONSTANTS.keys())
+
+# Add EasyConfig constants to export list
+globals().update({name: value for name, (value, _) in EASYCONFIG_CONSTANTS.items()})
+__all__ = ['EXTERNAL_MODULE_MARKER', 'EASYCONFIG_CONSTANTS'] + list(EASYCONFIG_CONSTANTS.keys())
+
+# package names for openssl-dev, pam-devel, and rdma-core-devel do not include the devel suffix on arch distros.
+# simply adding the arch names to the tuples below would falsely satisfy the dependencies on some non-arch distros,
+# so we need to explicitly define them separately.
+# to accomodate other arch_distros, simply add to the arch_distros list
+os_name = get_os_name()
+if os_name in ARCH_DISTROS:
+    EASYCONFIG_CONSTANTS['OS_PKG_IBVERBS_DEV'] = (('rdma-core'),
+                                                  "OS packages providing ibverbs/infiniband development support")
+    EASYCONFIG_CONSTANTS['OS_PKG_OPENSSL_LIB'] = (('openssl'),
+                                                  "OS packages providing openSSL libraries")
+    EASYCONFIG_CONSTANTS['OS_PKG_PAM_DEV'] = (('pam'),
+                                              "OS packages providing PAM developement support")

easybuild/tools/systemtools.py

@@ -173,6 +173,7 @@
 RPM = 'rpm'
 DPKG = 'dpkg'
 ZYPPER = 'zypper'
+PACMAN = 'pacman'
 
 SYSTEM_TOOLS = {
     '7z': "extracting sources (.iso)",
@@ -215,6 +216,9 @@
     'setuptools': ('pkg_resources', "obtaining information on Python packages via pkg_resources module"),
 }
 
+# arch-based linux distros (might require tweaks to package names)
+ARCH_DISTROS = ['arch', 'manjaro']
+
 
 class SystemToolsException(Exception):
     """raised when systemtools fails"""
@@ -847,13 +851,30 @@ def check_os_dependency(dep):
         'redhat': RPM,
         'rhel': RPM,
         'ubuntu': DPKG,
+        'arch': PACMAN,
+        'manjaro': PACMAN,
     }
     pkg_cmd_flag = {
         DPKG: '-s',
         RPM: '-q',
         ZYPPER: 'search -i',
+        PACMAN: '-Q'
     }
     os_name = get_os_name().lower().split(' ')[0]
+
+    # to accomodate arch package naming conventions
+    # these are explicitly defined in case the corresponding easyconfig constant was not used
+    ssl_deps = ['libssl', 'libopenssl', 'openssl-devel', 'libssl-dev', 'libopenssl-devel']
+    ibvers_deps = ['libibverbs-dev', 'libibverbs-devel', 'rdma-core-devel']
+    pam_deps = ['pam-devel', 'libpam0g-dev']
+    if os_name in ARCH_DISTROS:
+        if dep in ssl_deps:
+            dep = 'openssl'
+        elif dep in ibvers_deps:
+            dep = 'rdma-core'
+        elif dep in pam_deps:
+            dep = 'pam'
+
     if os_name in os_to_pkg_cmd_map:
         pkg_cmds = [os_to_pkg_cmd_map[os_name]]
     else: