Integrate metadata with the module interface/repo

3 files changed, 29 insertions, 0 deletions

diff --git a/pomu/repo/repo.py b/pomu/repo/repo.py
index 480510b..9b02edb 100644
--- a/pomu/repo/repo.py
+++ b/pomu/repo/repo.py
@@ -86,6 +86,29 @@ class Repository():
         r.commit('Removed package ' + name + ' successfully')
         return Result.Ok('Removed package ' + name + ' successfully')
 
+    def get_package(self, category, name, slot='0'):
+        """Get a package by name"""
+        with open(path.join(self.pomu_dir, 'world'), 'r') as f:
+            lines = [x.strip() for x in f]
+            if slot == '0':
+                spec = '{}/{}'.format(category, name)
+            else:
+                spec = '{}/{}:{}'.format(category, name, slot)
+            if not lines.has(spec):
+                return Result.Err('Package not found')
+        if slot == '0':
+            pkgdir = path.join(self.pomu_dir, category, name)
+        else:
+            pkgdir = path.join(self.pomu_dir, category, name, slot)
+        with open(path.join(pkgdir, 'BACKEND'), 'r') as f:
+            bname = f.readline().strip()
+        backend = dispatcher.backends[bname].from_meta_dir(pkgdir)
+        with open(path.join(pkgdir, 'VERSION'), 'r') as f:
+            version = f.readline().strip()
+        with open(path.join(pkgdir, 'FILES'), 'r') as f:
+            files = [x.strip() for x in f]
+        return Package(backend, name, self.root, category=category, version=version, slot=slot, files=files)
+
 
 def portage_repos():
     """Yield the repositories configured for portage"""
diff --git a/pomu/source/manager.py b/pomu/source/manager.py
index 9d3e2de..47c4953 100644
--- a/pomu/source/manager.py
+++ b/pomu/source/manager.py
@@ -35,6 +35,7 @@ from pomu.util.result import Result
 class PackageDispatcher():
     def __init__(self):
         self.handlers = []
+        self.backends = {}
 
     def source(self, cls):
         """
@@ -42,6 +43,7 @@ class PackageDispatcher():
         It would register all the methods of the class marked by @handler
         with the dispatcher.
         """
+        self.backends[cls.__name__] = cls
         for m, obj in inspect.getmembers(cls):
             if isinstance(obj, self.handler._handler):
                 self.register_package_handler(cls, obj.handler, obj.priority)
diff --git a/pomu/source/portage.py b/pomu/source/portage.py
index 8bb7d3a..dde9330 100644
--- a/pomu/source/portage.py
+++ b/pomu/source/portage.py
@@ -101,6 +101,10 @@ class PortageSource():
     def fetch_package(cls, pkg):
         return pkg.fetch()
 
+    @classmethod
+    def from_meta_dir(cls, metadir):
+        return PortagePackage.from_data_dir(cls, path.join(metadir, 'PORTAGE_DATA'))
+
 
 def sanity_check(repo, category, name, vernum, suff, rev, slot, ver=None):
     """