compiler-explorer/etc/scripts/gh_tool

GitHub Tools for Compiler Explorer

CLI tools for automating GitHub repository management tasks.

Setup

This project uses uv for Python version and dependency management.

Install dependencies:

cd etc/scripts/gh_tool
uv sync

Usage

Run from the gh_tool directory:

cd etc/scripts/gh_tool

# Get help
uv run gh_tool --help

# Get help for a specific command
uv run gh_tool find-duplicates --help

Commands

find-duplicates

Finds potential duplicate issues in the compiler-explorer repository using text similarity analysis (difflib.SequenceMatcher).

Usage:

# Basic usage (checks all open issues)
uv run gh_tool find-duplicates /tmp/duplicates-report.md

# Check all issues (including closed)
uv run gh_tool find-duplicates /tmp/all-duplicates.md --state all

# Adjust similarity threshold for higher confidence matches
uv run gh_tool find-duplicates /tmp/high-confidence.md --threshold 0.85

# Combine options
uv run gh_tool find-duplicates /tmp/report.md --threshold 0.7 --state all --min-age 30

# Use with a different repository
uv run gh_tool find-duplicates /tmp/other-repo.md --repo owner/repository

Arguments:

• OUTPUT_FILE (required) - Path to output markdown file

Options:

• --threshold FLOAT - Similarity threshold between 0 and 1 (default: 0.6)
  • 0.6 = 60% similar titles
  • Higher values = fewer, more confident matches
• --state {all,open,closed} - Which issues to check (default: open)
• --min-age DAYS - Only check issues older than N days (default: 0)
• --limit INTEGER - Maximum number of issues to fetch (default: 1000)
• --repo TEXT - GitHub repository in owner/repo format (default: compiler-explorer/compiler-explorer)

Example Output:

# Potential Duplicate Issues

Found 5 potential duplicate groups:

## Group 1 (85% similar)
- #3201 [LIB REQUEST] numpy (12 comments, created 2021-03-15)
- #7778 [LIB REQUEST] numpy (0 comments, created 2024-01-10)

## Group 2 (72% similar)
- #4336 [COMPILER REQUEST]: Groovy (3 comments, created 2022-05-20)
- #6526 [COMPILER REQUEST]: Groovy (1 comments, created 2023-08-15)

Performance:

The duplicate detection algorithm uses O(n²) pairwise comparisons. For reference:

• ~850 issues: ~362,000 comparisons (~1-2 minutes)
• ~1,000 issues: ~500,000 comparisons (~2-3 minutes)

A progress bar shows real-time progress during the comparison phase.

Requirements:

• gh CLI must be installed and authenticated
• Read access to compiler-explorer/compiler-explorer repository

Future Tools

This directory is intended to house additional GitHub automation scripts such as:

• Upstream project health checker (detect abandoned compiler/library projects)
• Label consistency validator
• Issue template compliance checker
• Automated triage reports

Development

Run tests:

uv run pytest -v

Run linting:

uv run ruff check .

Format code:

uv run ruff format .