#!/bin/sh
# Author: Sven Lechner (SirWindfield)
# License: GPLv3

require_clean_work_tree() {
    # Update index
    git update-index -q --ignore-submodules --refresh
    err=0

    # Disallow unstaged changes in the working tree
    if ! git diff-files --quiet --ignore-submodules --; then
        echo >&2 "Cannot commit: you have unstaged changes."
        git diff-files --name-status -r --ignore-submodules -- >&2
        err=1
    fi

    if [ $err = 1 ]; then
        echo >&2 "Please stage or stash them."
        exit 1
    fi
}

echo "→ Checking for local changes..."
require_clean_work_tree

echo "→ Formatting Rust code..."
cargo fmt
if [ $? -ne 0 ]; then
    exit 1
fi

for path in $(git diff --name-only --cached); do
    git update-index --add $path
done

echo "→ Building pre-commit build artifacts..."
cargo check --quiet --no-default-features --features "rodio_backend,dbus_keyring"
if [ $? -ne 0 ]; then
    exit 1
fi
cargo build --quiet --no-default-features --features "rodio_backend,dbus_keyring"

# Linting is only done with the rodio backend and the keyring feature as those should be 
# compilable for every supported platform without external library needs. 
echo "→ Linting Rust code..."
cargo clippy --no-default-features --features "rodio_backend,dbus_keyring" -- -D warnings

echo "→ Testing Rust code..."
cargo test --no-default-features --features "rodio_backend,dbus_keyring"