.example.env command

fixed issue with windows directories

removed debug echo statements

Removed old try accept that is no longer needed

Should be the end of my after the fact website commits

Add missing trailing newline when adding new value

Sometimes, the source file doesn't have a trailing newline.  If we add a
new binding in such a case, we need to add a newline before the new
binding.

Release version 0.19.2

updated to remove file error with broken file

fixed minor bug

tests and minor changes

CHANGELOG.md

@@ -5,6 +5,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this
 project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.19.2] - 2021-11-11
+
+### Fixed
+
+- In `set_key`, add missing newline character before new entry if necessary. (#361 by
+  [@bbc2])
+
 ## [0.19.1] - 2021-08-09
 
 ### Added
@@ -292,7 +299,8 @@ project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 [@yannham]: https://github.com/yannham
 [@zueve]: https://github.com/zueve
 
-[Unreleased]: https://github.com/theskumar/python-dotenv/compare/v0.19.1...HEAD
+[Unreleased]: https://github.com/theskumar/python-dotenv/compare/v0.19.2...HEAD
+[0.19.2]: https://github.com/theskumar/python-dotenv/compare/v0.19.1...v0.19.2
 [0.19.1]: https://github.com/theskumar/python-dotenv/compare/v0.19.0...v0.19.1
 [0.19.0]: https://github.com/theskumar/python-dotenv/compare/v0.18.0...v0.19.0
 [0.18.0]: https://github.com/theskumar/python-dotenv/compare/v0.17.1...v0.18.0

setup.cfg

@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.19.1
+current_version = 0.19.2
 commit = True
 tag = True
 

src/dotenv/cli.py

@@ -82,7 +82,6 @@ def get(ctx: click.Context, key: Any) -> None:
     else:
         exit(1)
 
-
 @cli.command()
 @click.pass_context
 @click.argument('key', required=True)
@@ -125,6 +124,32 @@ def run(ctx: click.Context, override: bool, commandline: List[str]) -> None:
     ret = run_command(commandline, dotenv_as_dict)
     exit(ret)
 
+@cli.command()
+@click.pass_context
+def example_file(ctx: click.Context) -> None:
+    '''Generates a .example.env file without values.'''
+    filedir = ctx.obj['FILE'].replace("\\", "/")
+    if not os.path.isfile(filedir):
+        raise click.BadParameter(
+            'Path "%s" does not exist.' % (filedir),
+            ctx=ctx
+        )
+    newFileList = []
+    with open(filedir,'r') as file:
+        for line in file:
+            line = line.strip()
+            if line[0] != "#":
+                line = line.split("=", 1)[0] + "="
+            newFileList.append(line + "\n")
+
+        while newFileList[-1] == "\n":
+            newFileList.pop(-1)
+
+        newFileName = f"{os.path.basename(file.name).split('.', 1)[0]}.example.env"
+        with open(newFileName, "w") as newFile:
+            for line in newFileList:
+                newFile.write(line)
+            click.echo(f"{newFileName} exported.")
 
 def run_command(command: List[str], env: Dict[str, str]) -> int:
     """Run command in sub process.
@@ -161,4 +186,4 @@ def run_command(command: List[str], env: Dict[str, str]) -> int:
 
 
 if __name__ == "__main__":
-    cli()
+    cli()

src/dotenv/main.py

@@ -167,13 +167,17 @@ def set_key(
 
     with rewrite(dotenv_path) as (source, dest):
         replaced = False
+        missing_newline = False
         for mapping in with_warn_for_invalid_lines(parse_stream(source)):
             if mapping.key == key_to_set:
                 dest.write(line_out)
                 replaced = True
             else:
                 dest.write(mapping.original.string)
+                missing_newline = not mapping.original.string.endswith("\n")
         if not replaced:
+            if missing_newline:
+                dest.write("\n")
             dest.write(line_out)
 
     return True, key_to_set, value_to_set

src/dotenv/version.py

@@ -1 +1 @@
-__version__ = "0.19.1"
+__version__ = "0.19.2"

tests/test_cli.py

@@ -205,3 +205,9 @@ def test_run_with_version(cli):
 
     assert result.exit_code == 0
     assert result.output.strip().endswith(__version__)
+
+def test_example_file_non_existent_file(cli):
+    result = cli.invoke(dotenv_cli, ['--file', 'nx_file', 'example_file'])
+
+    assert result.exit_code == 2, result.output
+    assert "does not exist" in result.output

tests/test_main.py

@@ -37,6 +37,7 @@ def test_set_key_no_file(tmp_path):
         ("a=b\nc=d", "a", "e", (True, "a", "e"), "a='e'\nc=d"),
         ("a=b\nc=d\ne=f", "c", "g", (True, "c", "g"), "a=b\nc='g'\ne=f"),
         ("a=b\n", "c", "d", (True, "c", "d"), "a=b\nc='d'\n"),
+        ("a=b", "c", "d", (True, "c", "d"), "a=b\nc='d'\n"),
     ],
 )
 def test_set_key(dotenv_file, before, key, value, expected, after):