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#! /usr/bin/env bash
# Will make sure you have rustfmt at the version in $VERSION, then format all the source code.
# Run with --only-format as the first argument to skip checking rustfmt version.
set -u
VERSION=`grep "required_version" rustfmt.toml | cut -f2 -d'"'`
CMD="rustfmt"
INSTALL_CMD="cargo +nightly install --vers $VERSION --force rustfmt-nightly"
case "$(uname -s)" in
Linux*) export LD_LIBRARY_PATH=$(rustc +nightly --print sysroot)/lib;;
Darwin*) export DYLD_LIBRARY_PATH=$(rustc +nightly --print sysroot)/lib;;
esac
function correct_rustfmt() {
if ! which $CMD; then
echo "$CMD is not installed" >&2
return 1
fi
local installed_version=$($CMD --version | cut -d'-' -f1)
if [[ "$installed_version" != "$VERSION" ]]; then
echo "Wrong version of $CMD installed. Expected $VERSION, got $installed_version" >&2
return 1
fi
return 0
}
if [[ "${1:-""}" != "--only-format" ]]; then
if ! correct_rustfmt; then
echo "Installing $CMD $VERSION"
$INSTALL_CMD
fi
else
shift
fi
echo "Formatting with $VERSION..."
cargo +nightly fmt -- "$@"
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