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A simple wrapper for tos

Project description

easy_tos

让数据流动变得简单!Make data flow!

pip install easy_tos==0.4.1 --index-url https://pypi.org/simple #清华等其他镜像源可能同步慢

这个库的开发是包含了大部分常用的 tos脚本操作,避免许多重复代码。以及让很多新入职的同事能够快速用起来我们的数据。

准备工作

准备 tosutil config

config = {
    "ak": "YOUR TOS ACESS KEY",
    "sk": "YOUR TOS SECRET KEY",
    "endpoint": "https://tos-cn-beijing.ivolces.com", 
    # 如果是火山引擎内网用 "https://tos-cn-beijing.ivolces.com",
    # 如果是本地网用 "https://tos-cn-beijing.volces.com",
    "region": "cn-beijing",
    "tosutil_path": "absolute path to tosutil"
}

场景一:tos 桶内,桶与桶之间,桶和本地之间的数据传输

# 传输文件夹
tosutil cp -r -u -j 96 -p 96 {tos_dir} {local_dir}
tosutil cp -r -u -j 96 -p 96 {local_dir} {tos_dir}
tosutil cp -r -u -j 96 -p 96 {tos_dir} {tos_dir}

# -r : 批量传输文件夹内容
# -u : 表示增量传输,中间中断,下次跑同样命令会在之前的结果上继续传输,而不是从头开始。但是会要先对比一下两方文件,要耗时一段时间
# -j : jobs 并发数 本地一般设置在 8~32,服务器上在 96~192
# -p : 分块的每块并发数 本地一般设置在 8~32,服务器上在 96~192
# example
tosutil cp -r -u -j 96 -p 96 /Users/jiaqiwu/Desktop/Project tos://mm-jiaqi-test/Code
# 则会把本地 Project 文件夹传输到桶 mm-jiaqi-test 的 Code 文件夹下。形成Code/Project/


# 传输文件(把 -r 去掉)
tosutil cp -u -j 96 -p 96 {tos_path} {local_dir}/ #结果:{local_dir}/tos_file
tosutil cp -u -j 96 -p 96 {local_path} {tos_dir}/ #结果:{tos_dir}/local_file
tosutil cp -u -j 96 -p 96 {tos_path} {tos_dir}/   #结果:{local_dir}/tos_file

# 注意!!!目标路径一定是以/结尾的文件夹路径。不然就会把该文件传输到 target_dir的父目录下,名字为target_dir

场景二:得到 tos 某个文件夹下的所有文件路径或者子文件夹路径

from easy_tos.core import *

# 得到桶 mm-data-general-model-v1 下面 rendering/nvdiffrast_render_v1_diffuse/ 的所有子文件夹。并把结果存到指定的 txt 路径。
tos_dir = "tos://mm-data-general-model-v1/rendering/nvdiffrast_render_v1_diffuse/"
res = list_all_subdirs_under_prefix(tos_dir, config, save2txt=True, custom_save_path="v1_diffuse_rendering.txt")

# 得到桶 mm-data-general-model-v1 下面 glb_models/ 所有的文件路径。 并把结果存到指定的 txt 路径。
tos_dir = "tos://mm-data-general-model-v1/glb_models/"
res = list_all_files_under_tos_dir(tos_dir, config, save2txt=True, custom_save_path="v1_glbs.txt")


场景三:tos上某个文件路径是否存在

from easy_tos.core import *
tos_path = "tos://mm-data-general-model-v1/glb_models/000-steel-stairs-fire-escapes-100465bd4888438aae77e058ef071940.glb"
print(check_tos_file_exists(tos_filepath=tos_path, config=config))
# return True if exists
# return False if not 

场景四:下载tos文件夹子集

# 有时候我们不想下载整个文件夹,只想要这个文件夹下的一部分文件或文件夹,我们有我们要的文件的信息,通常是 uid

from easy_tos.core import *
# 多线程下载 tos 目标文件夹下的 部分子文件
uids = [uid.strip() for uid in open("/home/jiaqi/Data_Engine/v1_all_uid.txt").readlines()]
tos_parent_dir = "tos://mm-data-general-model-v1/glb_models/"
file_type = "glb"
local_dir = "/home/jiaqi/Data_Engine/v1_glb"
download_file_from_tos2local(tos_parent_dir, uids, file_type, local_dir, config, jobs=96, chunk_jobs=96)


# 多线程下载 tos 目标文件夹下的 部分子文件夹
uids = [uid.strip() for uid in open("/home/jiaqi/Data_Engine/v1_all_uid.txt").readlines()]
tos_parent_dir = "tos://mm-data-general-model-v1/rendering/"
local_dir = "/home/jiaqi/Data_Engine/v1_glb"
download_dirs_from_tos2local(tos_parent_dir, uids, local_dir, config, jobs=96, chunk_jobs=96)

场景五:流式下载和上传

## 流式下载
from easy_tos.core import *
# 根据桶 和 uid 得到 mesh
bucket_name = "v1"
uid = "000-steel-stairs-fire-escapes-100465bd4888438aae77e058ef071940"
filetype = "glb"
bytes_io = uid2mesh(bucket_name, uid, file_type)
mesh = trimesh.load(bytes_io, file_type='glb', force='scene')

# 根据桶,uid,viewIdx 得到对应渲染图的 pillow image
bucket_name = "v1"
uid = "000-steel-stairs-fire-escapes-100465bd4888438aae77e058ef071940"
viewIdx = "0"
img_format = "png"
uid2pil_img(bucket_name, uid, viewIdx, img_format, config)

# 根据桶,uid,得到对应渲染的 camera_info
bucket_name = "v1"
uid = "000-steel-stairs-fire-escapes-100465bd4888438aae77e058ef071940"
uid2camera_info(bucket_name, uid, config)


## 流式上传
# 保存 tensor 至 tos
feature = torch.rand(100, 100)
buffer = io.BytesIO()
tos_save_path = "tos://mm-jiaqi-test/test.pt"
torch.save(feature, buffer)
print("uploading tensor")
save_tensor(buffer, tos_save_path, config=config)

# 保存 dict 至 tos,以 json 格式存储
toy_dict = {"test": 1}
tos_save_path = "tos://mm-jiaqi-test/test.pt"
save_dict_to_tos_json(toy_dict, tos_save_path)

# 保存 str 至 tos, 以 txt 格式存储
toy_str = "test"
tos_save_path = "tos://mm-jiaqi-test/test.txt"
save_string(toy_str, tos_save_path)



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