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Add print_output parameter to allow real time monitoring #30

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Add print_output parameter to allow real time monitoring #30

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9dac02a
Add print_output parameter
ben-wade-olo Mar 4, 2025
1909a2d
Keep existing behavior unchanged
ben-wade-olo Mar 5, 2025
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10 changes: 8 additions & 2 deletions sling/sling/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -574,9 +574,13 @@ def stream(self, env:dict=None, stdin=None) -> Iterable[list]:
# conform to legacy module
Sling = Task

def _run(cmd: str, temp_file: str, return_output=False, env:dict=None, stdin=None):
def _run(cmd: str, temp_file: str, return_output=False, print_output=False, env:dict=None, stdin=None):
"""
Runs the task. Use `return_output` as `True` to return the stdout+stderr output at end. `env` accepts a dictionary which defines the environment.
Runs the task.

Use `return_output` as `True` to return the stdout+stderr output at end.
Use `print_output` as `True` to print to stdout as it runs.
`env` accepts a dictionary which defines the environment.
"""
lines = []
try:
Expand All @@ -589,6 +593,8 @@ def _run(cmd: str, temp_file: str, return_output=False, env:dict=None, stdin=Non
lines.append(line)
else:
print(line, flush=True)
if print_output:
print(line, flush=True)

os.remove(temp_file)

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