nyuuzyou/moshub-code

Mos.Hub Code Dataset

Dataset Description

This dataset was compiled from code repositories hosted on Mos.Hub (hub.mos.ru), a code hosting platform operated by the Moscow Government. Mos.Hub is a service for storing and working with source code, based on the Git version control system, primarily used by Russian developers and government-related projects.

Dataset Summary

Statistic	Value
Total Files	15,740,580
Total Repositories	16,130
Total Size	529 MB (compressed Parquet)
Uncompressed Size	~29 GB
Programming Languages	297
File Format	Parquet (single file)

Key Features

• Russian code corpus: Contains code from repositories hosted on Moscow's official code platform, featuring Russian comments and documentation
• Diverse language coverage: Spans 297 programming languages identified by github-linguist
• Quality filtered: Binary files and low-quality content have been removed

Languages

The dataset includes 297 programming languages. The top 30 languages by file count:

Rank	Language	File Count
1	Ruby	8,333,731
2	JavaScript	1,786,730
3	YAML	1,757,614
4	Vue	699,171
5	Markdown	639,585
6	Haml	538,837
7	GraphQL	269,485
8	JSON	214,354
9	PHP	191,150
10	SVG	172,884
11	Shell	172,451
12	Go	88,089
13	Ignore List	87,432
14	SCSS	80,716
15	Python	77,532
16	C++	63,177
17	HTML+ERB	62,605
18	Text	48,400
19	Jest Snapshot	43,638
20	HTML	42,489
21	C	38,354
22	reStructuredText	26,342
23	Rust	24,818
24	E-mail	23,993
25	XML	22,715
26	Java	14,807
27	Gettext Catalog	14,429
28	C#	13,405
29	CSS	12,657
30	Protocol Buffer Text Format	12,181

Dataset Structure

Data Fields

Field	Type	Description
file_text	string	Content of the source file (UTF-8 encoded)
language	string	Programming language as identified by github-linguist
file_name	string	Name of the source file

Data Format

• Format: Apache Parquet
• File Structure: Single file (data.parquet)

Data Splits

All examples are in the train split. There is no validation or test split.

Example Data Point

{
    'file_text': 'package main\n\nimport "fmt"\n\nfunc main() {\n    fmt.Println("Hello")\n}\n',
    'language': 'Go',
    'file_name': 'main.go'
}

Dataset Creation

Source Data

All data originates from public repositories hosted on Mos.Hub.

Language Detection

Programming languages are detected using github-linguist, GitHub's library for detecting programming languages.

Filtering

• Deduplication: The dataset has been deduplicated to ensure unique code files
• Binary Files: Binary files have been removed from the dataset
• UTF-8 Validation: Files must be valid UTF-8 encoded text

Considerations for Using the Data

Personal and Sensitive Information

The dataset may contain:

• Email addresses in code comments or configuration files
• API keys or credentials that were accidentally committed
• Personal information in comments or documentation

Users should exercise caution and implement appropriate filtering when using this data.

Licensing Information

This dataset has been compiled with an analysis of the licenses used in the repositories to ensure ethical collection and use of the data. Users of this dataset should respect the rights of the authors and use the data responsibly.