36 lines
1.3 KiB
Python
Executable File
36 lines
1.3 KiB
Python
Executable File
#!/usr/bin/env python3
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import sys
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import shlex
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import subprocess
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def run_command(cmd_str: str, progress_prefix: str = "Progress", look_for: list = ["frame=", "time=", "fps=", "Rendering frame"]) -> bool:
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"""Runs a system command and streams its output live to the console."""
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# shlex safely handles quotes and paths inside the command string
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args = shlex.split(cmd_str)
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# Redirect stderr to stdout because FFmpeg outputs status updates to stderr
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process = subprocess.Popen(
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args,
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stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT,
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text=True,
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bufsize=1
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)
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print(f"Executing: {cmd_str[:90]}...")
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# Stream the output live to the terminal
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while True:
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line = process.stdout.readline()
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if not line and process.poll() is not None:
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break
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if line:
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clean_line = line.strip()
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# Only print updates that show progress metrics to keep terminal clean
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if any(metric in clean_line for metric in look_for):
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sys.stdout.write(f"\r[{progress_prefix}] {clean_line}")
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sys.stdout.flush()
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elif "Error" in clean_line or "failed" in clean_line:
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print(f"\n[Alert] {clean_line}")
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print("\n") # New line after process finishes
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return process.returncode == 0 |