Initial commit

Co-authored-by: Klaus Aehlig <klaus.aehlig@huawei.com>

1 files changed, 55 insertions, 0 deletions

diff --git a/bin/hdump.py b/bin/hdump.py
new file mode 100755
index 0000000..7998996
--- /dev/null
+++ b/bin/hdump.py
@@ -0,0 +1,55 @@
+#!/usr/bin/env python3
+
+import json
+import sys
+from typing import Any, Dict, List, Union
+
+JSON = Union[str, int, float, bool, None, Dict[str, 'JSON'], List['JSON']]
+
+
+def is_simple(entry: JSON) -> bool:
+    if isinstance(entry, list):
+        return len(entry) == 0
+    if isinstance(entry, dict):
+        return len(entry) == 0
+    return True
+
+
+def is_short(entry: Any, indent: int) -> bool:
+    return (len(json.dumps(entry)) + indent) < 80
+
+
+def hdumps(entry: JSON, *, _current_indent: int = 0) -> str:
+    if is_short(entry, _current_indent):
+        return json.dumps(entry)
+    if isinstance(entry, list) and entry:
+        result: str = "[ " + hdumps(entry[0],
+                                    _current_indent=_current_indent + 2)
+        for x in entry[1:]:
+            result += "\n" + " " * _current_indent + ", "
+            result += hdumps(x, _current_indent=_current_indent + 2)
+        result += "\n" + " " * _current_indent + "]"
+        return result
+    if isinstance(entry, dict) and entry:
+        result: str = "{ "
+        is_first: bool = True
+        for k in entry.keys():
+            if not is_first:
+                result += "\n" + " " * _current_indent + ", "
+            result += json.dumps(k) + ":"
+            if is_simple(entry[k]):
+                result += " " + json.dumps(entry[k])
+            elif is_short(entry[k], _current_indent + len(json.dumps(k)) + 4):
+                result += " " + json.dumps(entry[k])
+            else:
+                result += "\n" + " " * _current_indent + "  "
+                result += hdumps(entry[k], _current_indent=_current_indent + 2)
+            is_first = False
+        result += "\n" + " " * _current_indent + "}"
+        return result
+    return json.dumps(entry)
+
+
+if __name__ == "__main__":
+    data = json.load(sys.stdin)
+    print(hdumps(data))