theo-agent-dashboard

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diffParser.ts (1154B)

      1 /** Parsed unified diff structure. */
      2 export interface ParsedDiff {
      3   oldFileName: string | null;
      4   newFileName: string | null;
      5   hunks: string[];
      6 }
      7 
      8 /**
      9  * Parse a unified diff string into structured data for @git-diff-view/react.
     10  * Extracts filenames from ---/+++ lines and splits content into hunk strings.
     11  */
     12 export function parseUnifiedDiff(raw: string): ParsedDiff {
     13   const lines = raw.split("\n");
     14   let oldFileName: string | null = null;
     15   let newFileName: string | null = null;
     16   const hunks: string[] = [];
     17   let currentHunk: string[] = [];
     18 
     19   for (const line of lines) {
     20     if (line.startsWith("--- ")) {
     21       oldFileName = line.slice(4).trim();
     22       continue;
     23     }
     24     if (line.startsWith("+++ ")) {
     25       newFileName = line.slice(4).trim();
     26       continue;
     27     }
     28     if (line.startsWith("@@")) {
     29       if (currentHunk.length > 0) {
     30         hunks.push(currentHunk.join("\n"));
     31       }
     32       currentHunk = [line];
     33       continue;
     34     }
     35     if (currentHunk.length > 0) {
     36       currentHunk.push(line);
     37     }
     38   }
     39 
     40   if (currentHunk.length > 0) {
     41     hunks.push(currentHunk.join("\n"));
     42   }
     43 
     44   return { oldFileName, newFileName, hunks };
     45 }