Module patch 

Span-safe replacement engine with atomic writes and validation gates.

This module provides byte-exact patching with:

• Atomic file replacement (write temp + fsync + rename)
• File hash validation (before/after)
• Tree-sitter reparse gate (multi-language)
• Compiler validation gate (multi-language)
• Optional rust-analyzer gate (Rust only)
• Automatic rollback on any failure

Re-exports

pub use pattern::apply_pattern_replace;

pub use pattern::find_pattern_in_files;

pub use pattern::PatternReplaceConfig;

pub use pattern::PatternReplaceResult;

Modules

pattern

Pattern-based search and replace with AST confirmation.

Structs

BackupManifest

Manifest describing a backup operation.

BackupWriter

Writer for creating backups of files before patching.

FilePatchSummary

Result summary for a patched file.

PreviewReport

Preview metadata describing the diff produced by a patch.

SpanBatch

Collection of replacements that must succeed atomically.

SpanReplacement

Replacement to apply within a specific file.

Functions

apply_batch_with_validation

Apply multiple span replacements atomically across files.

apply_patch_with_validation

Apply a patch with comprehensive validation and automatic rollback.

load_batches_from_file

Load span batches from a JSON manifest.

preview_patch

Preview a patch by cloning the workspace, applying the change, and validating there.

preview_patch_with_content

Preview a patch and return before/after content for diff generation.

replace_span

Replace byte span without validation (legacy method for backward compatibility).

restore_from_manifest

Restore files from a backup manifest.

validate_utf8_span

Validate that a span aligns with UTF-8 boundaries.