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feat: Compress long timestamp gaps to 0.5 seconds in asciinema cast processing

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Paul Gauthier (aider) 2025-03-11 17:44:20 -07:00
parent 1bed4e8972
commit 1bb3041298
1 changed files with 31 additions and 3 deletions
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34
redact.py
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@ -13,7 +13,9 @@ def process_file(input_path, output_path):
If a text field contains "\u001b[ROW;COL]H" followed by "Atuin", skip it and all subsequent If a text field contains "\u001b[ROW;COL]H" followed by "Atuin", skip it and all subsequent
records until finding a text with "\u001b[ROW;(COL-1)H". records until finding a text with "\u001b[ROW;(COL-1)H".
Maintains consistent timestamps by not advancing time during skip sections. Maintains consistent timestamps by:
1. Not advancing time during skip sections
2. Compressing any long gaps to 0.5 seconds maximum
""" """
skip_mode = False skip_mode = False
target_pattern = None target_pattern = None
@ -21,6 +23,7 @@ def process_file(input_path, output_path):
is_first_line = True is_first_line = True
last_timestamp = 0.0 last_timestamp = 0.0
time_offset = 0.0 # Accumulator for time to subtract time_offset = 0.0 # Accumulator for time to subtract
max_gap = 0.5 # Maximum allowed time gap between events
with open(input_path, 'r', encoding='utf-8') as infile, open(output_path, 'w', encoding='utf-8') as outfile: with open(input_path, 'r', encoding='utf-8') as infile, open(output_path, 'w', encoding='utf-8') as outfile:
for line in infile: for line in infile:
@ -56,7 +59,20 @@ def process_file(input_path, output_path):
continue # Skip this record continue # Skip this record
# If we're not skipping, write the record with adjusted timestamp # If we're not skipping, write the record with adjusted timestamp
adjusted_timestamp = max(current_timestamp - time_offset, last_timestamp) # First, adjust for skipped sections
adjusted_timestamp = current_timestamp - time_offset
# Then, check if there's a long gap to compress
if last_timestamp > 0:
time_gap = adjusted_timestamp - last_timestamp
if time_gap > max_gap:
# Compress the gap and add the excess to time_offset
excess_time = time_gap - max_gap
time_offset += excess_time
adjusted_timestamp -= excess_time
# Ensure timestamps never go backward
adjusted_timestamp = max(adjusted_timestamp, last_timestamp)
last_timestamp = adjusted_timestamp last_timestamp = adjusted_timestamp
record[0] = adjusted_timestamp record[0] = adjusted_timestamp
outfile.write(json.dumps(record) + '\n') outfile.write(json.dumps(record) + '\n')
@ -72,7 +88,19 @@ def process_file(input_path, output_path):
last_timestamp += 0.5 last_timestamp += 0.5
# Write this record with adjusted timestamp # Write this record with adjusted timestamp
adjusted_timestamp = max(current_timestamp - time_offset, last_timestamp) adjusted_timestamp = current_timestamp - time_offset
# Check if there's a long gap to compress
if last_timestamp > 0:
time_gap = adjusted_timestamp - last_timestamp
if time_gap > max_gap:
# Compress the gap and add the excess to time_offset
excess_time = time_gap - max_gap
time_offset += excess_time
adjusted_timestamp -= excess_time
# Ensure timestamps never go backward
adjusted_timestamp = max(adjusted_timestamp, last_timestamp)
last_timestamp = adjusted_timestamp last_timestamp = adjusted_timestamp
record[0] = adjusted_timestamp record[0] = adjusted_timestamp
outfile.write(json.dumps(record) + '\n') outfile.write(json.dumps(record) + '\n')