1 files changed, 79 insertions, 0 deletions
diff --git a/cloudinit/util.py b/cloudinit/util.py
new file mode 100644
index 00000000..9b9f6f4d
--- /dev/null
+++ b/cloudinit/util.py
@@ -0,0 +1,79 @@
+import yaml
+import os
+import errno
+import subprocess
+from Cheetah.Template import Template
+
+def read_conf(fname):
+	stream = file(fname)
+	conf = yaml.load(stream)
+	stream.close()
+	return conf
+
+def get_cfg_option_bool(yobj, key, default=False):
+    if not yobj.has_key(key): return default
+    val = yobj[key]
+    if yobj[key] in [ True, '1', 'on', 'yes', 'true']:
+        return True
+    return False
+
+def get_cfg_option_str(yobj, key, default=None):
+    if not yobj.has_key(key): return default
+    return yobj[key]
+
+# merge values from src into cand.
+# if src has a key, cand will not override
+def mergedict(src,cand):
+    if isinstance(src,dict) and isinstance(cand,dict):
+        for k,v in cand.iteritems():
+            if k not in src:
+                src[k] = v
+            else:
+                src[k] = mergedict(src[k],v)
+    return src
+
+def write_file(file,content,mode=0644):
+        try:
+            os.makedirs(os.path.dirname(file))
+        except OSError as e:
+            if e.errno != errno.EEXIST:
+                raise e
+
+        f=open(file,"wb")
+        os.chmod(file,mode)
+        f.write(content)
+        f.close()
+
+# get keyid from keyserver
+def getkeybyid(keyid,keyserver):
+   shcmd="""
+   k=${1} ks=${2};
+   exec 2>/dev/null
+   [ -n "$k" ] || exit 1;
+   armour=$(gpg --list-keys --armour "${k}")
+   if [ -z "${armour}" ]; then
+      gpg --keyserver ${ks} --recv $k >/dev/null &&
+         armour=$(gpg --export --armour "${k}") &&
+         gpg --batch --yes --delete-keys "${k}"
+   fi
+   [ -n "${armour}" ] && echo "${armour}"
+   """
+   args=['sh', '-c', shcmd, "export-gpg-keyid", keyid, keyserver]
+   return(subp(args)[0])
+
+def subp(args, input=None):
+    s_in = None
+    if input is not None:
+        s_in = subprocess.PIPE
+    sp = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=s_in)
+    out,err = sp.communicate(input)
+    if sp.returncode is not 0:
+        raise subprocess.CalledProcessError(sp.returncode,args)
+    return(out,err)
+
+def render_to_file(template, outfile, searchList):
+    t = Template(file='/etc/cloud/templates/%s.tmpl' % template, searchList=[searchList])
+    f = open(outfile, 'w')
+    f.write(t.respond())
+    f.close()
+