g_sorcery/backend

1 files changed, 57 insertions, 1 deletions

diff --git a/g_sorcery/backend.py b/g_sorcery/backend.py
index 0fb194d..476a8a4 100644
--- a/g_sorcery/backend.py
+++ b/g_sorcery/backend.py
@@ -11,6 +11,62 @@
     :license: GPL-2, see LICENSE for more details.
 """
 
+import glob, os
+
 class Backend:
-    def __init__(self):
+    def __init__(self, PackageDB, EbuildGenrator, directory,
+                 repo_uri="", db_uri="", sync_db=True, eclass_dir=""):
+        self.sync_db = sync_db
+        self.repo_uri = repo_uri
+        self.db_uri = db_uri
+        self.eclass_dir = eclass_dir
+
+        self.directory = directory
+        self.backend_data_dir = os.path.join(directory, '.backend_data')
+        os.makedirs(self.backend_data_dir)
+        self.db = PackageDB(os.path.join(self.backend_data_dir, 'db'),
+                            repo_uri = self.repo_uri,
+                            db_uri = self.db_uri)
+
+        self.repo_uri = self.db.repo_uri
+        self.db_uri = self.db.db_uri
+
+        self.eg = EbuildGenrator(self.db)
+
+    def sync(self):
+        if self.sync_db and not self.db_uri:
+            Exception("No uri for syncing provided.")
+        if not self.sync_db and not self.repo_uri:
+            Exception("No repo uri provided.")
+        if self.sync_db:
+            self.db.sync()
+        else:
+            self.db.generate()
+
+    def list_ebuilds(self):
+        return self.db.list_all_packages()
+
+    def generate_ebuild(self, package):
+        return self.eg.generate(package)
+
+    def list_eclasses(self):
+        result = []
+        if self.eclass_dir:
+            for f_name in glob.iglob(os.path.join(self.eclass_dir, '*.eclass')):
+                result.append(os.path.basename(f_name)[:-7])
+        return result
+
+    def generate_eclass(self, eclass):
+        if not self.eclass_dir:
+            Exception('No eclass dir')
+        f_name = os.path.join(self.eclass_dir, eclass + '.eclass')
+        if not os.path.isfile(f_name):
+            Exception('No eclass ' + eclass)
+        with open(f_name, 'r') as f:
+            eclass = f.read().split('\n')
+            if eclass[-1] == '':
+                eclass = eclass[:-1]
+        return eclass
+
+    def generate_metadata(self, category, name):
         pass