[OpenWrt] Avoid error with "sysupgrade -r"

nemesifier · nemesifier · commit 82cc5e5a9bf8 · 2015-10-22T18:14:49.000+02:00
diff --git a/netjsonconfig/backends/openwrt/openwrt.py b/netjsonconfig/backends/openwrt/openwrt.py
@@ -141,16 +141,21 @@ def generate(self, name='openwrt-config'):
             package_name = lines[0]
             text_contents = '\n'.join(lines[2:])
             byte_contents = BytesIO(text_contents.encode('utf8'))
-            info = tarfile.TarInfo(name='/etc/config/{0}'.format(package_name))
+            info = tarfile.TarInfo(name='etc/config/{0}'.format(package_name))
             info.size = len(text_contents)
             tar.addfile(tarinfo=info, fileobj=byte_contents)
         # insert additional files
         for file_item in self.config.get('files', []):
             contents = file_item['contents']
+            path = file_item['path']
+            # join lines if contents is a list
             if isinstance(contents, list):
                 contents = '\n'.join(contents)
+            # remove leading slashes from path
+            if path.startswith('/'):
+                path = path[1:]
             byte_contents = BytesIO(contents.encode('utf8'))
-            info = tarfile.TarInfo(name=file_item['path'])
+            info = tarfile.TarInfo(name=path)
             info.size = len(contents)
             tar.addfile(tarinfo=info, fileobj=byte_contents)
         # close archive
diff --git a/tests/openwrt/test_backend.py b/tests/openwrt/test_backend.py
@@ -142,7 +142,7 @@ def test_generate(self):
         tar = tarfile.open('openwrt-config.tar.gz', 'r:gz')
         self.assertEqual(len(tar.getmembers()), 2)
         # network
-        network = tar.getmember('/etc/config/network')
+        network = tar.getmember('etc/config/network')
         contents = tar.extractfile(network).read().decode()
         expected = self._tabs("""config interface 'wlan0'
     option ifname 'wlan0'
@@ -152,7 +152,7 @@ def test_generate(self):
 """)
         self.assertEqual(contents, expected)
         # wireless
-        wireless = tar.getmember('/etc/config/wireless')
+        wireless = tar.getmember('etc/config/wireless')
         contents = tar.extractfile(wireless).read().decode()
         expected = self._tabs("""config wifi-device 'radio0'
     option channel '3'
@@ -281,11 +281,11 @@ def test_file_inclusion(self):
         tar = tarfile.open('openwrt-config.tar.gz', 'r:gz')
         self.assertEqual(len(tar.getmembers()), 2)
         # first file
-        crontab = tar.getmember('/etc/crontabs/root')
+        crontab = tar.getmember('etc/crontabs/root')
         contents = tar.extractfile(crontab).read().decode()
         self.assertEqual(contents, o.config['files'][0]['contents'])
         # second file
-        dummy = tar.getmember('/etc/dummy.conf')
+        dummy = tar.getmember('etc/dummy.conf')
         contents = tar.extractfile(dummy).read().decode()
         self.assertEqual(contents, o.config['files'][1]['contents'])
         # close and delete tar.gz file
@@ -309,7 +309,7 @@ def test_file_inclusion_list_contents(self):
         tar = tarfile.open('openwrt-config.tar.gz', 'r:gz')
         self.assertEqual(len(tar.getmembers()), 1)
         # check file
-        crontab = tar.getmember('/root/.ssh/authorized_keys')
+        crontab = tar.getmember('root/.ssh/authorized_keys')
         contents = tar.extractfile(crontab).read().decode()
         self.assertEqual(contents, '\n'.join(o.config['files'][0]['contents']))
         # close and delete tar.gz file
