Bitbucket MCP Server

import { minimatch } from 'minimatch'; export interface DiffSection { filePath: string; oldPath?: string; // For renamed files content: string; isNew: boolean; isDeleted: boolean; isRenamed: boolean; isBinary: boolean; } export interface FilterOptions { includePatterns?: string[]; excludePatterns?: string[]; filePath?: string; } export interface FilteredResult { sections: DiffSection[]; metadata: { totalFiles: number; includedFiles: number; excludedFiles: number; excludedFileList: string[]; }; } export class DiffParser { /** * Parse a unified diff into file sections */ parseDiffIntoSections(diff: string): DiffSection[] { const sections: DiffSection[] = []; // Split by file boundaries - handle both formats const fileChunks = diff.split(/(?=^diff --git)/gm).filter(chunk => chunk.trim()); for (const chunk of fileChunks) { const section = this.parseFileSection(chunk); if (section) { sections.push(section); } } return sections; } /** * Parse a single file section from the diff */ private parseFileSection(chunk: string): DiffSection | null { const lines = chunk.split('\n'); if (lines.length === 0) return null; // Extract file paths from the diff header let filePath = ''; let oldPath: string | undefined; let isNew = false; let isDeleted = false; let isRenamed = false; let isBinary = false; // Look for diff --git line - handle both standard and Bitbucket Server formats const gitDiffMatch = lines[0].match(/^diff --git (?:a\/|src:\/\/)(.+?) (?:b\/|dst:\/\/)(.+?)$/); if (gitDiffMatch) { const [, aPath, bPath] = gitDiffMatch; filePath = bPath; // Check subsequent lines for file status for (let i = 1; i < Math.min(lines.length, 10); i++) { const line = lines[i]; if (line.startsWith('new file mode')) { isNew = true; } else if (line.startsWith('deleted file mode')) { isDeleted = true; filePath = aPath; // Use the original path for deleted files } else if (line.startsWith('rename from')) { isRenamed = true; oldPath = line.replace('rename from ', ''); } else if (line.includes('Binary files') && line.includes('differ')) { isBinary = true; } else if (line.startsWith('--- ')) { // Alternative way to detect new/deleted if (line.includes('/dev/null')) { isNew = true; } } else if (line.startsWith('+++ ')) { if (line.includes('/dev/null')) { isDeleted = true; } // Extract path from +++ line if needed - handle both formats const match = line.match(/^\+\+\+ (?:b\/|dst:\/\/)(.+)$/); if (match && !filePath) { filePath = match[1]; } } } } // Fallback: try to extract from --- and +++ lines if (!filePath) { for (const line of lines) { if (line.startsWith('+++ ')) { const match = line.match(/^\+\+\+ (?:b\/|dst:\/\/)(.+)$/); if (match) { filePath = match[1]; break; } } else if (line.startsWith('--- ')) { const match = line.match(/^--- (?:a\/|src:\/\/)(.+)$/); if (match) { filePath = match[1]; } } } } if (!filePath) return null; return { filePath, oldPath, content: chunk, isNew, isDeleted, isRenamed, isBinary }; } /** * Apply filters to diff sections */ filterSections(sections: DiffSection[], options: FilterOptions): FilteredResult { const excludedFileList: string[] = []; let filteredSections = sections; // If specific file path is requested, only keep that file if (options.filePath) { filteredSections = sections.filter(section => section.filePath === options.filePath || section.oldPath === options.filePath ); // Track excluded files sections.forEach(section => { if (section.filePath !== options.filePath && section.oldPath !== options.filePath) { excludedFileList.push(section.filePath); } }); } else { // Apply exclude patterns first (blacklist) if (options.excludePatterns && options.excludePatterns.length > 0) { filteredSections = filteredSections.filter(section => { const shouldExclude = options.excludePatterns!.some(pattern => minimatch(section.filePath, pattern, { matchBase: true }) ); if (shouldExclude) { excludedFileList.push(section.filePath); return false; } return true; }); } // Apply include patterns if specified (whitelist) if (options.includePatterns && options.includePatterns.length > 0) { filteredSections = filteredSections.filter(section => { const shouldInclude = options.includePatterns!.some(pattern => minimatch(section.filePath, pattern, { matchBase: true }) ); if (!shouldInclude) { excludedFileList.push(section.filePath); return false; } return true; }); } } return { sections: filteredSections, metadata: { totalFiles: sections.length, includedFiles: filteredSections.length, excludedFiles: sections.length - filteredSections.length, excludedFileList } }; } /** * Reconstruct a unified diff from filtered sections */ reconstructDiff(sections: DiffSection[]): string { if (sections.length === 0) { return ''; } // Join all sections with proper spacing return sections.map(section => section.content).join('\n'); } }