added file, jsondecode, jsonencode jinja filters

Author: ribejara-te

src/stacks/filters/__init__.py

@@ -1,5 +1,7 @@
 from .checksum import md5, sha1, sha256, sha512
 from .deepformat import deepformat
+from .encoding import jsondecode, jsonencode
+from .filesystem import file
 from .lookup import variable, output, resource
 from .throw import throw
 
@@ -10,6 +12,9 @@
     sha256,
     sha512,
     deepformat,
+    jsondecode,
+    jsonencode,
+    file,
     variable,
     output,
     resource,

src/stacks/filters/encoding.py

@@ -0,0 +1,9 @@
+import json
+
+
+def jsondecode(ctx, data, *args, **kwargs):
+    return json.loads(data)
+
+
+def jsonencode(ctx, data, *args, **kwargs):
+    return json.dumps(data)

src/stacks/filters/filesystem.py

@@ -0,0 +1,3 @@
+def file(ctx, path, *args, **kwargs):
+    with open(path) as f:
+        return f.read()