facts: add ability to translate logical cmd to distro cmd

The target distro cmd is expected to keep the assumed template form
(say, a command to install packages should contain "{commands}" field
that is then substituted, via "format" method, with the desired
packages, completing the command to be used further in the process).

Unlike with logical packages, nothing is considered a (suitable)
distro-wide default.

Signed-off-by: Jan Pokorný <jpokorny@redhat.com>

2 files changed, 28 insertions, 1 deletions

diff --git a/facts.py b/facts.py
index 0a0748a..9ce2a06 100644
--- a/facts.py
+++ b/facts.py
@@ -54,6 +54,8 @@ cluster_map = {
                     'pacemaker[cman]':               (1, 1, 4),
                     #---
                     'pkg::mysql':                   'mysql-server',
+                    #---
+                    'cmd::pkg-install':             'yum install -y {packages}',
                 }),
                 ((14, ), {
                     'corosync':                      (1, 4),
@@ -84,6 +86,8 @@ cluster_map = {
                     'pkg::mysql':                   'mysql-server',
                     'pkg::postgresql':              'postgresql-server',
                     'pkg::virsh':                   'libvirt-client',
+                    #---
+                    'cmd::pkg-install':             'yum install -y {packages}',
                 }),
                 ((6, 2), {
                     'corosync':                      (1, 4),
@@ -374,6 +378,13 @@ def package(which, *sys_id):
     return _find_meta('pkg', which, *sys_id, default=which)
 
 
+def cmd_pkg_install(pkgs, *sys_id):
+    cmd = _find_meta('cmd', 'pkg-install', *sys_id)
+    if cmd:
+        cmd = cmd.format(packages=' '.join(pkgs))
+    return cmd
+
+
 cluster_systems = (cluster_pcs_flatiron, cluster_pcs_needle)
 
 
diff --git a/tests/facts.py b/tests/facts.py
index d3a20d1..6926106 100644
--- a/tests/facts.py
+++ b/tests/facts.py
@@ -10,7 +10,8 @@ from os.path import join, dirname as d; execfile(join(d(d((__file__))), '_go'))
 
 from unittest import TestCase
 
-from .facts import cluster_pcs_flatiron, cluster_pcs_1_2, package
+from .facts import cluster_pcs_flatiron, cluster_pcs_1_2, cmd_pkg_install, \
+                   package
 
 
 class TestClusterSystem(TestCase):
@@ -62,4 +63,19 @@ class TestPackage(TestCase):
         self.assertEqual(package('virsh',      *sys_id), 'libvirt-client')
 
 
+class TestCommand(TestCase):
+    def test_pkg_install_rhel60(self):
+        sys_id = 'linux', ('redhat', ' 6.0')
+        self.assertEqual(cmd_pkg_install(('mc', 'vim'), *sys_id),
+                         'yum install -y mc vim')
+    def test_pkg_install_rhel70(self):
+        sys_id = 'linux', ('redhat', ' 7.0')
+        self.assertEqual(cmd_pkg_install(('mc', 'vim'), *sys_id),
+                         'yum install -y mc vim')
+    def test_pkg_install_fedora19(self):
+        sys_id = 'linux', ('fedora', ' 19')
+        self.assertEqual(cmd_pkg_install(('mc', 'vim'), *sys_id),
+                         'yum install -y mc vim')
+
+
 from os.path import join, dirname as d; execfile(join(d(d(__file__)), '_gone'))