Function computeFrontmatterHashFromContent

pkg/parser/frontmatter_hash.go:182–212

computeFrontmatterHashFromContent is the shared core that computes the hash given the already-read file content and pre-parsed frontmatter map (may be nil).

(content string, parsedFrontmatter map[string]any, filePath string, cache *ImportCache, fileReader FileReader)

// computeFrontmatterHashFromContent is the shared core that computes the hash given the
// already-read file content and pre-parsed frontmatter map (may be nil).
func computeFrontmatterHashFromContent(content string, parsedFrontmatter map[string]any, filePath string, cache *ImportCache, fileReader FileReader) (string, error) {
	frontmatterHashLog.Printf("Computing hash from content: filePath=%s, content_size=%d bytes", filePath, len(content))

	// Extract frontmatter and markdown as text (no YAML parsing)
	frontmatterText, markdown, err := extractFrontmatterAndBodyText(content)
	if err != nil {
		return "", fmt.Errorf("failed to extract frontmatter: %w", err)
	}

	// Get base directory for resolving imports
	baseDir := filepath.Dir(filePath)

	// Detect inlined-imports from the pre-parsed frontmatter map.
	// If nil (parsing failed or not provided), inlined-imports is treated as false.
	inlinedImports := parseBoolFromFrontmatter(parsedFrontmatter, "inlined-imports")
	frontmatterHashLog.Printf("Hash strategy: inlined_imports=%v, markdown_size=%d bytes", inlinedImports, len(markdown))

	// When inlined-imports is enabled, the entire markdown body is compiled into the lock
	// file, so any change to the body must invalidate the hash. Include the full body text.
	// Otherwise, only extract the relevant template expressions (env./vars. references).
	var relevantExpressions []string
	var fullBody string
	if inlinedImports {
		fullBody = normalizeFrontmatterText(markdown)
	} else {
		relevantExpressions = extractRelevantTemplateExpressions(markdown)
	}

	// Compute hash using text-based approach with custom file reader
	return computeFrontmatterHashTextBasedWithReader(frontmatterText, fullBody, baseDir, cache, relevantExpressions, fileReader)
}

// extractRelevantTemplateExpressions extracts template expressions from markdown
// that reference env. or vars. contexts