Function resetIndex

src/api/resetIndex.js:31–120

({
  fs: _fs,
  dir,
  gitdir = join(dir, '.git'),
  filepath,
  ref,
  cache = {},
})

 *
 */
export async function resetIndex({
  fs: _fs,
  dir,
  gitdir = join(dir, '.git'),
  filepath,
  ref,
  cache = {},
}) {
  try {
    assertParameter('fs', _fs)
    assertParameter('gitdir', gitdir)
    assertParameter('filepath', filepath)

    const fs = new FileSystem(_fs)
    const updatedGitdir = await discoverGitdir({ fsp: fs, dotgit: gitdir })

    let oid
    let workdirOid

    try {
      // Resolve commit
      oid = await GitRefManager.resolve({
        fs,
        gitdir: updatedGitdir,
        ref: ref || 'HEAD',
      })
    } catch (e) {
      if (ref) {
        // Only throw the error if a ref is explicitly provided
        throw e
      }
    }

    // Not having an oid at this point means `resetIndex()` was called without explicit `ref` on a new git
    // repository. If that happens, we can skip resolving the file path.
    if (oid) {
      try {
        // Resolve blob
        oid = await resolveFilepath({
          fs,
          cache,
          gitdir: updatedGitdir,
          oid,
          filepath,
        })
      } catch (e) {
        // This means we're resetting the file to a "deleted" state
        oid = null
      }
    }

    // For files that aren't in the workdir use zeros
    let stats = {
      ctime: new Date(0),
      mtime: new Date(0),
      dev: 0,
      ino: 0,
      mode: 0,