bindep: depends: Add distro family aliases

CentOS, RHEL and Fedora share a lot of similarities when it comes to
package names so group them together under the 'redhat' alias.
Similarly, group openSUSE Leap, Tumbleweed and SLE under the 'suse'
alias.

Change-Id: I5bfe33cd48c21b4c94f550a27b96466f488a8df8

README.rst

@@ -136,6 +136,13 @@ since those entries have the ``platform:rpm`` profile, and
 ``dev-libs/libxml2`` on Gentoo since the entry has the
 ``platform:gentoo`` profile.
 
+Additionally, you can use ``platform:redhat`` or ``platform:suse`` to only
+match RedHat-like or SUSE-like distributions respectively as shown in the
+following example::
+
+    openssh-server [platform:redhat]
+    openssh [platform:suse]
+
 To select Python3 development packages, the OpenStack CI default file uses::
 
     python3-all-dev [platform:dpkg !platform:ubuntu-precise]

bindep/depends.py

@@ -250,6 +250,12 @@ class Depends(object):
             elif distro in ["opensuseproject", "opensusetumbleweed"]:
                 # just short alias
                 atoms.add("opensuse")
+            # Family aliases
+            if 'suse' in distro:
+                atoms.add("suse")
+            else:
+                atoms.add("redhat")
+
             atoms.add("rpm")
             self.platform = Rpm()
         elif distro in ["gentoo"]:

bindep/tests/test_depends.py

@@ -65,8 +65,9 @@ class TestDepends(TestCase):
     def test_detects_centos(self):
         with self._mock_lsb("CentOS"):
             depends = Depends("")
-            self.assertThat(
-                depends.platform_profiles(), Contains("platform:centos"))
+            platform_profiles = depends.platform_profiles()
+            self.assertThat(platform_profiles, Contains("platform:centos"))
+            self.assertThat(platform_profiles, Contains("platform:redhat"))
 
     def test_detects_rhel(self):
         with self._mock_lsb("RedHatEnterpriseServer"):
@@ -78,12 +79,16 @@ class TestDepends(TestCase):
             self.assertThat(
                 platform_profiles,
                 Contains("platform:rhel"))
+            self.assertThat(
+                platform_profiles,
+                Contains("platform:redhat"))
 
     def test_detects_fedora(self):
         with self._mock_lsb("Fedora"):
             depends = Depends("")
-            self.assertThat(
-                depends.platform_profiles(), Contains("platform:fedora"))
+            platform_profiles = depends.platform_profiles()
+            self.assertThat(platform_profiles, Contains("platform:fedora"))
+            self.assertThat(platform_profiles, Contains("platform:redhat"))
 
     def test_detects_opensuse_project(self):
         with self._mock_lsb("openSUSE Project"):
@@ -93,6 +98,8 @@ class TestDepends(TestCase):
                             Contains("platform:opensuseproject"))
             self.assertThat(platform_profiles,
                             Contains("platform:opensuse"))
+            self.assertThat(platform_profiles,
+                            Contains("platform:suse"))
 
     def test_detects_opensuse_tumbleweed(self):
         with self._mock_lsb("openSUSE Tumbleweed"):
@@ -102,12 +109,15 @@ class TestDepends(TestCase):
                             Contains("platform:opensusetumbleweed"))
             self.assertThat(platform_profiles,
                             Contains("platform:opensuse"))
+            self.assertThat(platform_profiles,
+                            Contains("platform:suse"))
 
     def test_detects_suse_linux(self):
         with self._mock_lsb("SUSE Linux"):
             depends = Depends("")
-            self.assertThat(
-                depends.platform_profiles(), Contains("platform:suselinux"))
+            platform_profiles = depends.platform_profiles()
+            self.assertThat(platform_profiles, Contains("platform:suselinux"))
+            self.assertThat(platform_profiles, Contains("platform:suse"))
 
     def test_detects_ubuntu(self):
         with self._mock_lsb("Ubuntu"):