Function JSONPatchForFile

source/platforms/git/gitJSONToGitDSL.ts:65–90

(filename: string)

   * @param filename The path of the file
   */
  const JSONPatchForFile = async (filename: string) => {
    // We already have access to the diff, so see if the file is in there
    // if it's not return an empty diff
    if (!gitJSONRep.modified_files.includes(filename)) {
      return null
    }

    // Grab the two files contents.
    const baseFile = await config.getFileContents(filename, config.repo, config.baseSHA)
    const headFile = await config.getFileContents(filename, config.repo, config.headSHA)

    // Parse JSON. `fileContents` returns empty string for files that are
    // missing in one of the refs, ie. when the file is created or deleted.
    const baseJSON = baseFile === "" ? {} : JSON5.parse(baseFile)
    const headJSON = headFile === "" ? {} : JSON5.parse(headFile)

    // Tiny bit of hand-waving here around the types. JSONPatchOperation is
    // a simpler version of all operations inside the rfc6902 d.ts. Users
    // of danger wont care that much, so I'm smudging the classes slightly
    // to be ones we can add to the hosted docs.
    return {
      before: baseFile === "" ? null : baseJSON,
      after: headFile === "" ? null : headJSON,
      diff: jsonDiff.compare(baseJSON, headJSON) as JSONPatchOperation[],
    }
  }

  /**
   * Takes a path, generates a JSON patch for it, then parses that into something