Add library for writing toml files

magicli/magicli.py

@@ -7,6 +7,7 @@ try:
     import tomllib
 except ModuleNotFoundError:
     import tomli as tomllib
+import tomli_w
 
 
 __version__ = '0.3.0'
@@ -317,39 +318,77 @@ def load_pyproject_toml(dirname, maxdepth=3, filename='pyproject.toml'):
     return {}
 
 
+# def write_pyproject_toml(path):
+
+#     config = {
+#         'Module name': '',
+#         'Author': '',
+#         'Author email': '',
+#         'CLI command': '',
+#         'CLI path': '',
+#     }
+
+#     for key in config.keys():
+#         config[key] = input(f"{key}: ")
+
+#     author_and_email = '{name = "' + config['Author'] + '", email = "' + config['Author email'] + '"}'
+
+#     with open(path, 'w') as f:
+#         f.write(f"""\
+# [build-system]
+# requires = ["flit_core >=3.2,<4"]
+# build-backend = "flit_core.buildapi"
+
+# [project]
+# name = "{config['Module name']}"
+# authors = [{author_and_email}]
+# dynamic = ["version", "description"]
+# dependencies = ["magicli"]
+
+# [project.scripts]
+# {config['CLI command']} = "{config['CLI path']}"
+
+# [tool.magicli]
+# test = "test"
+# """)
+
+
 def write_pyproject_toml(path):
+    if os.path.exists(path):
+        with open(path, "rb") as f:
+            config = tomli.load(f)
+    else:
+        config = {
+            "build-system": {
+                "requires": ["flit_core >=3.2,<4"],
+                "build-backend": "flit_core.buildapi",
+            },
+            "project": {
+                "name": "",
+                "authors": [],
+                "dynamic": ["version", "description"],
+                "dependencies": ["magicli"],
+            },
+        }
 
-    config = {
-        'Module name': '',
-        'Author': '',
-        'Author email': '',
-        'CLI command': '',
-        'CLI path': '',
-    }
+    if not 'name' in config['project'] or not config['project']['name']:
+        config['project']['name'] = input('Module name: ')
 
-    for key in config.keys():
-        config[key] = input(f"{key}: ")
+    if not 'authors' in config['project'] or not config['project']['authors']:
+        author = input('Author: ')
+        email = input('Author email: ')
+        config['project']['authors'] = [{"author": author, "email": email}]
     
-    author_and_email = '{name = "' + config['Author'] + '", email = "' + config['Author email'] + '"}'
+    if not 'scripts' in config['project']:
+        config['project']['scripts'] = {}
 
-    with open(path, 'w') as f:
-        f.write(f"""\
-[build-system]
-requires = ["flit_core >=3.2,<4"]
-build-backend = "flit_core.buildapi"
+    if not config['project']['scripts']:
+        cli_name = input('CLI name: ')
+        cli_path = input('CLI path: ')
+        config['project']['scripts'][cli_name] = cli_path
 
-[project]
-name = "{config['Module name']}"
-authors = [{author_and_email}]
-dynamic = ["version", "description"]
-dependencies = ["magicli"]
-
-[project.scripts]
-{config['CLI command']} = "{config['CLI path']}"
-
-[tool.magicli]
-test = "test"
-""")
+    with open(path, 'wb') as f:
+        tomli_w.dump(config, f)
 
 
 def first_calling_frame():