From 25c48354f7e723febf054d70da9bb6407332d174 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kier=C3=A1n=20Meinhardt?= <kmein@posteo.de>
Date: Fri, 10 Dec 2021 19:43:06 +0100
Subject: [PATCH] feat: add csv2json and json2csv scripts

---
 .bin/csv2json | 14 ++++++++++++++
 .bin/json2csv | 24 ++++++++++++++++++++++++
 2 files changed, 38 insertions(+)
 create mode 100755 .bin/csv2json
 create mode 100755 .bin/json2csv

diff --git a/.bin/csv2json b/.bin/csv2json
new file mode 100755
index 0000000..064e4ef
--- /dev/null
+++ b/.bin/csv2json
@@ -0,0 +1,14 @@
+#!/usr/bin/env python3
+
+import csv
+import json
+import sys
+import argparse
+
+parser = argparse.ArgumentParser()
+parser.add_argument("--delimiter", "-d", default=",", help="CSV field separator")
+
+args = parser.parse_args()
+
+if __name__ == "__main__":
+    json.dump(list(csv.DictReader(sys.stdin, delimiter=args.delimiter)), sys.stdout)
diff --git a/.bin/json2csv b/.bin/json2csv
new file mode 100755
index 0000000..0f1f7a1
--- /dev/null
+++ b/.bin/json2csv
@@ -0,0 +1,24 @@
+#!/usr/bin/env python3
+import csv
+import json
+import sys
+
+if __name__ == "__main__":
+    json_list = json.load(sys.stdin)
+    if not isinstance(json_list, list):
+        print("JSON object is not a list.", file=sys.stderr)
+        sys.exit(1)
+    if len(json_list) == 0:
+        print("JSON list is empty.", file=sys.stderr)
+        sys.exit(1)
+    keys = set()
+    for element in json_list:
+        if isinstance(element, dict):
+            keys |= element.keys()
+        else:
+            print("Non-dict element:", element, file=sys.stderr)
+            sys.exit(1)
+    writer = csv.DictWriter(sys.stdout, fieldnames=list(keys))
+    writer.writeheader()
+    for element in json_list:
+        writer.writerow(element)