gitprov
d5a8d38c9c
A code-first, declarative video editing system that compiles text documents into rendered video via FFmpeg. Uses a compiler-style ETL pipeline: Extract (parse inputs) → Validate → Transform (build timeline) → Render (FFmpeg). Features: - Text-based project definition (manuscript, transcript, JSON configs) - Slide markers [S1], [S2] in transcript map to timed overlays - Strict validation with fail-fast error reporting - FFmpeg filter_complex generation with time-based enables - CLI with validate/render/dry-run modes Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
60 lines
1.8 KiB
Python
60 lines
1.8 KiB
Python
"""Structured error types for GnommoEditor pipeline."""
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from dataclasses import dataclass
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from pathlib import Path
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from typing import Optional
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class GnommoError(Exception):
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"""Base exception for all GnommoEditor errors."""
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pass
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@dataclass
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class ValidationIssue:
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"""A single validation issue with location context."""
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message: str
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file: Optional[Path] = None
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line: Optional[int] = None
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def __str__(self) -> str:
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parts = []
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if self.file:
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parts.append(str(self.file))
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if self.line is not None:
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parts.append(f"line {self.line}")
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location = ":".join(parts) if parts else "project"
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return f"[{location}] {self.message}"
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class ParseError(GnommoError):
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"""Error during parsing of input files."""
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def __init__(self, message: str, file: Optional[Path] = None, line: Optional[int] = None):
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self.issue = ValidationIssue(message, file, line)
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super().__init__(str(self.issue))
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class ValidationError(GnommoError):
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"""Error during validation stage. Can contain multiple issues."""
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def __init__(self, issues: list[ValidationIssue]):
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self.issues = issues
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message = f"Validation failed with {len(issues)} error(s):\n"
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message += "\n".join(f" - {issue}" for issue in issues)
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super().__init__(message)
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class RenderError(GnommoError):
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"""Error during rendering stage."""
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def __init__(self, message: str, command: Optional[str] = None, stderr: Optional[str] = None):
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self.command = command
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self.stderr = stderr
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full_message = message
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if command:
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full_message += f"\nCommand: {command}"
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if stderr:
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full_message += f"\nFFmpeg output:\n{stderr}"
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super().__init__(full_message)
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