unsloth/studio/backend/core/training/resume.py
Michael Han 6d8c18cd1a
Replace standalone Studio wording with Unsloth (#7221)
* Replace standalone Studio wording with Unsloth

Replace the single word Studio with Unsloth wherever it is used as
shorthand for Unsloth Studio in docs, CLI output, UI strings, i18n
locales, workflow display names, comments and docstrings.

Kept unchanged: the full name Unsloth Studio, third party product
names (LM Studio, Visual Studio, Mac Studio), feature names
(Recipe Studio, Fine-tuning Studio and its translations), and all
identifiers such as env vars, commands, paths and filenames.

* Address review feedback on the Studio wording rename

Use "an" before Unsloth where the rename left the article as "a".
Restore the split brand where Unsloth and Studio render as two halves
of the full product name: the onboarding sidebar subtitle and the
IPv6 localhost warning. Scope two messages to the full name Unsloth
Studio where plain Unsloth was misleading: the AMD README bullet and
the CLI studio setup error.
2026-07-19 00:47:04 -07:00

96 lines
2.7 KiB
Python

# SPDX-License-Identifier: AGPL-3.0-only
# Copyright 2026-present the Unsloth AI Inc. team. All rights reserved. See /studio/LICENSE.AGPL-3.0
"""Helpers for validating resumable training outputs."""
import json
from pathlib import Path
from typing import Optional
from utils.paths import outputs_root, resolve_output_dir
def _is_under_outputs(path: Path) -> bool:
resolved = path.resolve(strict = False)
root = outputs_root().resolve(strict = False)
try:
resolved.relative_to(root)
return True
except ValueError:
return False
def has_resume_state(path_value: Optional[str]) -> bool:
if not path_value:
return False
return get_resume_checkpoint_path(path_value) is not None
def _checkpoint_step(path: Path) -> int:
try:
return int(path.name.removeprefix("checkpoint-"))
except ValueError:
return -1
def get_resume_checkpoint_path(path_value: str) -> Optional[str]:
path = resolve_output_dir(path_value)
if not _is_under_outputs(path) or not path.is_dir():
return None
if (path / "trainer_state.json").is_file():
return str(path)
checkpoints = [
child
for child in path.glob("checkpoint-*")
if child.is_dir() and (child / "trainer_state.json").is_file()
]
if not checkpoints:
return None
return str(max(checkpoints, key = _checkpoint_step))
def normalize_resume_output_dir(path_value: str) -> str:
path = resolve_output_dir(path_value)
if not _is_under_outputs(path):
raise ValueError("Resume checkpoint must be inside Unsloth outputs.")
return str(path)
def _run_config(run: dict) -> dict:
raw_config = run.get("config_json")
if isinstance(raw_config, dict):
return raw_config
if not isinstance(raw_config, str) or not raw_config.strip():
return {}
try:
parsed = json.loads(raw_config)
except (json.JSONDecodeError, TypeError):
return {}
return parsed if isinstance(parsed, dict) else {}
def _uses_s3_dataset(run: dict) -> bool:
config = _run_config(run)
return config.get("dataset_source") == "s3" or "s3_dataset" in config
def can_resume_run(run: dict) -> bool:
if run.get("resumed_later"):
return False
if _uses_s3_dataset(run):
return False
final_step = run.get("final_step")
total_steps = run.get("total_steps")
has_remaining_steps = (
not isinstance(final_step, int)
or not isinstance(total_steps, int)
or total_steps <= 0
or final_step < total_steps
)
return (
run.get("status") == "stopped"
and has_remaining_steps
and has_resume_state(run.get("output_dir"))
)