uv

#!/usr/bin/env -S bash --norc --noprofile
# ./uv — run the project-pinned version of uv.
#
# Reads required-version from uv.toml and delegates via `uv tool run`.
# This avoids version mismatch errors when your system uv (e.g. Homebrew)
# differs from the version pinned for this project.
#
# Usage:
#   ./uv sync
#   ./uv run pytest
#   ./uv pip compile ...
#
# The pinned version is cached by uvx after the first run.
# Parsing uses bash =~ instead of forking sed to avoid a subprocess.
#
# Bash with built-in regex is ~3x faster than Python for this task (hyperfine,
# 50 runs): bash+builtin 18.7ms, bash+sed 25.0ms, python 55.4ms.
set -Eeuo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

while IFS= read -r line; do
    if [[ "$line" =~ ^required-version\ *=\ *\"==([^\"]*)\" ]]; then
        version="${BASH_REMATCH[1]}"
        break
    fi
done < "${SCRIPT_DIR}/uv.toml"

if [[ -z "${version:-}" ]]; then
    echo "error: could not read required-version from ${SCRIPT_DIR}/uv.toml" >&2
    exit 1
fi

# Fast path: use the system uv directly if it already matches the pinned version
if current=$(uv --version 2>/dev/null) && [[ "$current" == "uv $version" || "$current" == "uv $version "* ]]; then
    exec uv "$@"
fi

# Slow path: run the pinned version via uvx (downloaded and cached on first use)
exec uv tool run "uv@${version}" "$@"