Finally executes before last `.then` when using chained promises

How come my last .then (writeLin..) doesn't run?

Note: triggercommand returns function that returns promise

 .then(function () {

    if (fs.existsSync(tempDir + '/' + repoName)) {
      return self.triggerCommand("git", ["checkout", "master"], {cwd: tempDir + '/' + repoName})()
        .then(
        self.triggerCommand("git", ["pull", "master"], {cwd: tempDir + '/' + repoName})
      )
    }
    return self.triggerCommand("git", ["clone", remote], {cwd: tempDir});
  }
)

  .then(
    writeLine("Git clone/pull complete.")//this never runs
)

.finally(function () {
    //this runs