lib/bpkup.py: add or own kernel uploader helper lib

kup is written in perl, add some basic python interfaces
for it to allow us to upload to kernel.org backport
releases.

Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>

diff --git a/lib/bpkup.py b/lib/bpkup.py
new file mode 100644 (file)
index 0000000..03504bb
--- /dev/null
+++ b/lib/bpkup.py
@@ -0,0 +1,44 @@
+import subprocess, os
+
+class KupError(Exception):
+    pass
+class ExecutionError(KupError):
+    def __init__(self, errcode):
+        self.error_code = errcode
+
+def _check(process):
+    if process.returncode != 0:
+        raise ExecutionError(process.returncode)
+
+def mkdir(path):
+    cmd = ['kup', 'mkdir', path]
+    process = subprocess.Popen(cmd,
+                               stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
+                               close_fds=True, universal_newlines=True)
+    stdout = process.communicate()[0]
+    process.wait()
+    _check(process)
+
+    return stdout
+
+def ls(path=None):
+    cmd = ['kup', 'ls', path]
+    process = subprocess.Popen(cmd,
+                               stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
+                               close_fds=True, universal_newlines=True)
+    stdout = process.communicate()[0]
+    process.wait()
+    _check(process)
+
+    return stdout
+
+def put(tar_bz2, signed_tar, path):
+    cmd = ['kup', 'put', tar_bz2, signed_tar, path]
+    process = subprocess.Popen(cmd,
+                               stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
+                               close_fds=True, universal_newlines=True)
+    stdout = process.communicate()[0]
+    process.wait()
+    _check(process)
+
+    return stdout