fix(formatting): Correct string capitalisation

The description and body fields were being modifed to drop their
capitals throughout the text when capitalising the first letter. This
was behaviour of the built in str.capitalize() method. A new utility
function has been created which performs the desired behaviour of purely
upper casing the first character in a string.

Fix #25
Fix #28

Author: nebbles

gitcommit/gitcommit.py

@@ -38,6 +38,7 @@
 )
 from .completers import TypeCompleter, FooterCompleter
 from .updater import check_for_update
+from .utils import capitaliseFirst
 
 IS_BREAKING_CHANGE = None  # default for global variable
 try:
@@ -218,7 +219,7 @@ def add_description(commit_msg):
 
     # Sanitise
     c_descr = c_descr.strip()  # remove whitespace
-    c_descr = c_descr.capitalize()  # capital first letter
+    c_descr = capitaliseFirst(c_descr)  # capital first letter
     if c_descr[-1] == ".":
         c_descr = c_descr[:-1]  # remove period if last character
         c_descr = c_descr.strip()  # remove further whitespace
@@ -255,7 +256,7 @@ def add_body(commit_msg):
 
     c_body = session.prompt(ANSI(text), validator=body_validator)
     c_body = c_body.strip()  # remove leading/trailing whitespace
-    c_body = c_body.capitalize()  # capital first letter
+    c_body = capitaliseFirst(c_body)  # capital first letter
 
     if IS_BREAKING_CHANGE:
         full_body = "BREAKING CHANGE: " + c_body

gitcommit/utils.py

@@ -0,0 +1,8 @@
+def capitaliseFirst(string_in: str) -> str:
+    """A utility function that will capitalise only the first character in a string. Unlike str.capitalize() which will lower all other characters in the string."""
+    if len(string_in) == 0:
+        return ""
+    elif len(string_in) == 1:
+        return string_in[0].upper()
+    elif len(string_in) > 1:
+        return string_in[0].upper() + string_in[1:]