Appearing today by audio-visual link from Christchurch District Court, Rawle was told by Judge Rea her response throughout was "quite chilling", Stuff reported.
But he decided she would not have to go back to prison, recording a sentence of 1 year 10 months to match time served with early release.
The Judge noted a lack of empathy for the victim and reflected on a probation officer's report quoting Rawle as saying she had "forgiven" the victim.
According to evidence, the women bumped into each other on the Thirsty Whale dance floor, Rawle spilling wine onto Walker-Ratahi, who pushed her away.
Rawle then smashed into her victim's face and body, causing multiple cuts, including eye wounds.
Walker-Ratahi told Hawke's Bay Today in the days after the incident, when she was aged 19, that afterwards she could not see because of the amount of blood and she "felt like I was in a murder scene."
She was taken to hospital and had multiple stitches inserted around her right eye, cheek and nose.