<commit_before>import * as Path from 'path'
import { ChildProcess } from 'child_process'
import * as Fs from 'fs'

import { git, IGitExecutionOptions } from './core'

import { Repository } from '../../models/repository'
import { WorkingDirectoryFileChange, FileChange, FileStatus } from '../../models/status'
import { Diff, ImageDiff  } from '../../models/diff'

import { DiffParser } from '../diff-parser'

export class ImageDiffSummary {
  public readonly previous: ImageDiff | undefined
  public readonly current: ImageDiff | undefined
}

export class GitDiff {

  /**
   * Render the difference between a file in the given commit and its parent
   *
   * @param commitish A commit SHA or some other identifier that ultimately dereferences
   *                  to a commit.
   */
  public static getCommitDiff(repository: Repository, file: FileChange, commitish: string): Promise<Diff> {

    const args = [ 'log', commitish, '-m', '-1', '--first-parent', '--patch-with-raw', '-z', '--', file.path ]

    return git(args, repository.path)
      .then(value => this.diffFromRawDiffOutput(value.stdout))
      .then(diff => {
        // TODO: if this is a binary file and a known file extension
        //       let's try and find the blob for this file
        return diff
      })
  }

  private static imageFileExtensions = new Set([ '.png', '.jpg', '.jpeg', '.gif' ])

  /**
   * Render the diff for a file within the repository working directory. The file will be
   * compared against HEAD if it's tracked, if not it'll be compared to an empty file meaning<commit_msg>all the linting<commit_after>import * as Path from 'path'
import { ChildProcess } from 'child_process'
import * as Fs from 'fs'

import { git, IGitExecutionOptions } from './core'

import { Repository } from '../../models/repository'
import { WorkingDirectoryFileChange, FileChange, FileStatus } from '../../models/status'
import { Diff, ImageDiff  } from '../../models/diff'

import { DiffParser } from '../diff-parser'

export class ImageDiffSummary {
  public readonly previous: ImageDiff | undefined
  public readonly current: ImageDiff | undefined
}

export class GitDiff {

  private static imageFileExtensions = new Set([ '.png', '.jpg', '.jpeg', '.gif' ])

  /**
   * Render the difference between a file in the given commit and its parent
   *
   * @param commitish A commit SHA or some other identifier that ultimately dereferences
   *                  to a commit.
   */
  public static getCommitDiff(repository: Repository, file: FileChange, commitish: string): Promise<Diff> {

    const args = [ 'log', commitish, '-m', '-1', '--first-parent', '--patch-with-raw', '-z', '--', file.path ]

    return git(args, repository.path)
      .then(value => this.diffFromRawDiffOutput(value.stdout))
      .then(diff => {
        // TODO: if this is a binary file and a known file extension
        //       let's try and find the blob for this file
        return diff
      })
  }

  /**
   * Render the diff for a file within the repository working directory. The file will be
   * compared against HEAD if it's tracked, if not it'll be compared to an empty file meaning
{'fraction_non_alphanumeric': 0.11857958148383006, 'fraction_numerical': 0.0006341154090044388, 'mean_word_length': 3.0500641848523746, 'pattern_counts': {'":': 0, '<': 5, '<?xml version=': 0, '>': 9, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '4908973', 'n_tokens_mistral': 869, 'n_tokens_neox': 854, 'n_words': 341}