Initial commit.

Copied from git+ssh://git@git.gentoo.org/infra/cfengine.git repo as:
timestamp 2015-11-29T21:57:00Z
commit 3b63da8fbbb848d5a1f7e7cd7c6989638ed0d817

No passwords, passphrases or key material is contained herein, but it
may reference the pathes to such.

Reviewed-by: Robin H. Johnson <robbat2@gentoo.org>
Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>

1 files changed, 49 insertions, 0 deletions

diff --git a/clean-old-deltas.py b/clean-old-deltas.py
new file mode 100755
index 0000000..5f7e6b6
--- /dev/null
+++ b/clean-old-deltas.py
@@ -0,0 +1,49 @@
+#!/usr/bin/python
+
+import os,sys
+if len(sys.argv) != 4:
+	print "need 3 args, first being directory to scan, second being latest, third being it's size"
+	sys.exit(1)
+	
+path=sys.argv[1]
+maxsize=long(sys.argv[3])
+if len(sys.argv[2]) != 8:
+	print "date arg must be YYYYMMDD"
+	sys.exit(1)
+root = sys.argv[2]
+
+if not hasattr(__builtins__, "set"):
+	from sets import Set as set
+file_list = [x for x in os.listdir(path) if os.path.isfile(os.path.join(path, x))]
+pref_name="snapshot-"
+post_name=".patch.bz2"
+deltas = [x for x in file_list if x.startswith(pref_name) and x.endswith(post_name)]
+chains={}
+for x in deltas:
+	try:
+		start, end = x[len(pref_name):-len(post_name)].split("-")
+	except ValueError:
+		continue
+	if end in chains:
+		print "warning, end %s already exists; this is a bit weird" % end
+		continue
+	chains[end] = start	
+
+save_files = set()
+node = root
+count = 0
+while node in chains:
+	s="%s%s-%s%s" % (pref_name, chains[node], node, post_name)
+	count += os.stat(os.path.join(path, s)).st_size
+	if count > maxsize:
+		break
+	save_files.update([s, s+".md5sum", s+".gpgsig"])
+	node = chains[node]
+
+for x in file_list:
+	if x not in save_files:
+		print "nuking %s" % x
+		try:
+			os.unlink(os.path.join(path,x))
+		except OSError, oe:
+			print "failed removing %s cause of %s" % (os.path.join(path, x), str(oe))