From f50768ed039d92540f3aa8faae5a07357f28dd45 Mon Sep 17 00:00:00 2001
From: Eric Joanis <eric.joanis@nrc-cnrc.gc.ca>
Date: Tue, 2 Apr 2024 10:52:47 -0400
Subject: [PATCH] fix: g2p convert should not add newline when input is a file

Fixes: #351
---
 g2p/cli.py            | 14 +++++---------
 g2p/tests/test_cli.py |  8 +++++---
 2 files changed, 10 insertions(+), 12 deletions(-)

diff --git a/g2p/cli.py b/g2p/cli.py
index 78cc40cb..e3cb37d9 100644
--- a/g2p/cli.py
+++ b/g2p/cli.py
@@ -507,13 +507,8 @@ def convert(  # noqa: C901
         # This isn't that DRY - copied from g2p/mappings/langs/__init__.py
         mappings_legal_pairs = []
         mapping_config = MappingConfig.load_mapping_config_from_path(config)
-        for index in range(len(mapping_config.mappings)):
-            mappings_legal_pairs.append(
-                (
-                    mapping_config.mappings[index].in_lang,
-                    mapping_config.mappings[index].out_lang,
-                )
-            )
+        for index, mapping in enumerate(mapping_config.mappings):
+            mappings_legal_pairs.append((mapping.in_lang, mapping.out_lang))
             mapping_config.mappings[index] = Mapping.load_mapping_from_path(
                 config, index
             )
@@ -536,7 +531,8 @@ def convert(  # noqa: C901
         raise click.UsageError(
             f"Path between '{in_lang}' and '{out_lang}' does not exist"
         )
-    if os.path.exists(input_text) and input_text.endswith("txt"):
+    input_text_is_a_file = os.path.exists(input_text) and input_text.endswith("txt")
+    if input_text_is_a_file:
         with open(input_text, encoding="utf8") as f:
             input_text = f.read()
     # Determine which tokenizer to use, if any
@@ -563,7 +559,7 @@ def convert(  # noqa: C901
     if len(outputs) > 1:
         click.echo(pprint.pformat(outputs, indent=4))
     else:
-        click.echo(tg.output_string)
+        click.echo(tg.output_string, nl=not input_text_is_a_file)
 
 
 # Note: with -m eng-ipa, we actually check all the mappings from lang-ipa to eng-ipa.
diff --git a/g2p/tests/test_cli.py b/g2p/tests/test_cli.py
index 221d9d02..bafa44a7 100755
--- a/g2p/tests/test_cli.py
+++ b/g2p/tests/test_cli.py
@@ -476,11 +476,13 @@ def test_show_mappings(self):
         self.assertNotEqual(results.exit_code, 0)
 
     def test_convert_from_file(self):
-        results = self.runner.invoke(
-            convert, [os.path.join(DATA_DIR, "fra_simple.txt"), "fra", "fra-ipa"]
-        )
+        input_file = os.path.join(DATA_DIR, "fra_simple.txt")
+        results = self.runner.invoke(convert, [input_file, "fra", "fra-ipa"])
         self.assertEqual(results.exit_code, 0)
         self.assertIn("fʁɑ̃sɛ", results.output)
+        with open(input_file, "r", encoding="utf8") as f:
+            lines_in = len(list(f))
+        self.assertEqual(lines_in, len(results.output.splitlines()))
 
     def test_convert_errors(self):
         """Exercise code handling error situations in g2p convert"""