Create new method for filling csv with a default value

* gn3/csvcmp.py (fill_csv): Given a csv text with uneven or incomplete fields
whole length are less than width, fill them with a value which defaults to
"x".

* tests/unit/test_csvcmp.py (test_fill_csv): Test cases for the above.

1 files changed, 11 insertions, 0 deletions

diff --git a/gn3/csvcmp.py b/gn3/csvcmp.py
index 35133dc..7a4a026 100644
--- a/gn3/csvcmp.py
+++ b/gn3/csvcmp.py
@@ -67,3 +67,14 @@ def csv_diff(base_csv, delta_csv, tmp_dir="/tmp"):
     if os.path.exists(file_name2):
         os.remove(file_name2)
     return _r
+
+
+def fill_csv(csv_text, width, value="x"):
+    data = []
+    for line in csv_text.strip().split("\n"):
+        if line.startswith("Strain") or line.startswith("#"):
+            data.append(line)
+        elif line:
+            data.append(
+                ",".join((_n:=line.split(",")) + [value] * (width - len(_n))))
+    return "\n".join(data)