Parse all lines in app file looking for shebangs to run commands. (#15714)

fixed command parsing so that all lines in the file are parsed

(cherry picked from commit 98bcb3d)

Author: rlizzo

src/lightning_app/utilities/app_commands.py

@@ -38,12 +38,13 @@ def _extract_commands_from_file(file_name: str) -> CommandLines:
         file_lines = f.readlines()
 
     for line_number, line in enumerate(file_lines):
-        if line.strip() in APP_COMMAND_LINES_TO_IGNORE:
+        line = line.strip()
+        if line in APP_COMMAND_LINES_TO_IGNORE:
             continue
 
         # stop parsing at first non-comment line at top of file
         if not line.startswith("#"):
-            break
+            continue
 
         # remove comment marker and any leading / trailing whitespaces
         line = line.lstrip("#").strip()

tests/tests_app/utilities/test_app_commands.py

@@ -14,7 +14,7 @@
         ("multiple_commands.txt", ['echo "foo"', 'echo "bar"'], [1, 2]),
         ("commands_with_mixed_comments_1.txt", ['echo "foo"', 'echo "bar"'], [1, 3]),
         ("commands_with_mixed_comments_2.txt", ['echo "foo"', 'echo "bar"'], [2, 4]),
-        ("command_after_first_non_comment_line.txt", ['echo "foo"'], [1]),
+        ("command_after_first_non_comment_line.txt", ['echo "foo"', 'echo "bar"'], [2, 4]),
         ("bang_not_at_start_of_line.txt", ['echo "foo"'], [2]),
         ("space_between_bang_and_command.txt", ['echo "foo"'], [1]),
         ("multiple_spaces_between_band_and_command.txt", ['echo "foo"'], [1]),

tests/tests_app/utilities/testdata/app_commands/command_after_first_non_comment_line.txt

@@ -1,3 +1,4 @@
+
 # !echo "foo"
 import lighting
 # !echo "bar"