"Services" class

kiwi_scp/instance.py

@@ -1,7 +1,7 @@
 import functools
 import re
 from pathlib import Path
-from typing import Generator, List
+from typing import Generator, List, Tuple, Optional
 
 import attr
 import click
@@ -24,7 +24,7 @@ class Service:
             "service": {
                 self.name: self.description
             }
-        })
+        }).strip()
 
     @property
     def configs(self) -> Generator[Path, None, None]:
@@ -36,7 +36,7 @@ class Service:
             cd_match = _RE_CONFDIR.match(host_part)
 
             if cd_match:
-                yield cd_match.group(1)
+                yield Path(cd_match.group(1))
 
 
 @attr.s
@@ -50,7 +50,8 @@ class Services:
                 service.name: service.description
                 for service in self.content
             }
-        })
+        }).strip()
+
 
 @attr.s
 class Instance:
@@ -68,18 +69,21 @@ class Instance:
         with open(directory.joinpath(COMPOSE_FILE_NAME), "r") as cf:
             return YAML().load(cf)
 
-    def get_services(self, project_name: str) -> Services:
+    def get_services(self, project_name: str, service_names: Optional[Tuple[str]] = None) -> Services:
         yml = Instance._parse_compose_file(self.directory.joinpath(project_name))
-
-        return Services(project_name, [
+        services = [
             Service(name, description)
             for name, description in yml["services"].items()
+        ]
+
+        if service_names is None:
+            return Services(project_name, services)
+        else:
+            return Services(project_name, [
+                service
+                for service in services
+                if service.name in service_names
             ])
 
-    def get_service(self, project_name: str, service_name: str) -> Service:
-        yml = Instance._parse_compose_file(self.directory.joinpath(project_name))
-
-        return Service(service_name, yml["services"][service_name])
-
 
 pass_instance = click.make_pass_decorator(Instance, ensure=True)

tests/test_instance.py

@@ -14,14 +14,13 @@ class TestDefault:
 
         assert p.name == "hello-world.project"
 
-        ss = list(i.get_services(p.name))
+        ss = i.get_services(p.name)
 
-        assert len(ss) == 5
+        assert len(ss.content) == 5
 
-        s = ss[0]
+        s = ss.content[0]
 
         assert s.name == "greeter"
-        assert s == i.get_service(p.name, s.name)
 
     def test_empty(self):
         i = Instance()

tests/test_service.py

@@ -1,60 +1,62 @@
 from pathlib import Path
 
+from ruamel.yaml import CommentedMap
+
 from kiwi_scp.instance import Service
 
 
 class TestDefault:
-    def test_no_description(self):
-        s = Service.from_description(
+    def test_empty(self):
+        s = Service(
             name="s",
-            description={},
+            description=CommentedMap(),
         )
 
         assert s.name == "s"
-        assert s.configs == []
+        assert list(s.configs) == []
 
     def test_no_configs(self):
-        s = Service.from_description(
+        s = Service(
             name="s",
-            description={
+            description=CommentedMap({
                 "image": "repo/image:tag",
-            },
+            }),
         )
 
         assert s.name == "s"
-        assert s.configs == []
+        assert list(s.configs) == []
 
     def test_no_configs_in_volumes(self):
-        s = Service.from_description(
+        s = Service(
             name="s",
-            description={
+            description=CommentedMap({
                 "image": "repo/image:tag",
                 "volumes": [
                     "docker_volume/third/dir:/path/to/third/mountpoint",
                     "${TARGETDIR}/some/dir:/path/to/some/mountpoint",
                     "$TARGETDIR/other/dir:/path/to/other/mountpoint",
                 ]
-            },
+            }),
         )
 
         assert s.name == "s"
-        assert s.configs == []
+        assert list(s.configs) == []
 
     def test_with_configs(self):
-        s = Service.from_description(
+        s = Service(
             name="s",
-            description={
+            description=CommentedMap({
                 "image": "repo/image:tag",
                 "volumes": [
                     "${CONFDIR}/some/config:/path/to/some/config",
                     "$CONFDIR/other/config:/path/to/other/config",
                 ]
-            },
+            }),
         )
 
         assert s.name == "s"
-        assert len(s.configs) == 2
-        assert s.configs == [
+        assert len(list(s.configs)) == 2
+        assert list(s.configs) == [
             Path("some/config"),
             Path("other/config"),
         ]