Method getDiffAsync

tools/src/Git.ts:433–445

* Gets the diff between two commits and parses it to the list of changed files and their chunks.

(commit1: string, commit2: string)

   * Gets the diff between two commits and parses it to the list of changed files and their chunks.
   */
  async getDiffAsync(commit1: string, commit2: string): Promise<GitFileDiff[]> {
    const { stdout } = await this.runAsync(['diff', `${commit1}..${commit2}`]);
    const diff = parseDiff(stdout);

    return diff.map((entry) => {
      const finalPath = entry.deleted ? entry.from : entry.to;

      return {
        ...entry,
        path: join(this.path, finalPath!),
      };
    });
  }

  /**
   * Lists the contents of a given tree object, like what "ls -a" does in the current working directory.