Delete derived data

ddd

#!/bin/sh

# To install, run:
#   sudo install ddd /usr/local/bin

set -euo pipefail

print_usage() {
    cat <<EOF
usage: ddd [<options>] [<project>]

    -f, --force      Deelte derived data without asking for confirmation
    -h, --help       Print usage information
    -n, --dry-run    Don't actually delete anything, just show what would be deleted
    -q, --quiet      Suppress non-essential output

EOF
}

dry_run=0
force=0
quiet=0
project_name=''
for arg in "$@"
do
    case "$arg" in
        -h | --help)
            print_usage
            exit 0
            ;;
        -n | --dry-run)
            dry_run=1
            ;;
        -f | --force)
            force=1
            ;;
        -q | --quiet)
            quiet=1
            ;;
        -*)
            echo "Unrecognized flag \"$arg\"\n" 1>&2
            print_usage
            exit 1
            ;;
        *)
            project_name="$arg"
            ;;
    esac
done

derived_data_dir=''
if [[ -z $project_name ]]; then
    derived_data_dir='~/Library/Developer/Xcode/DerivedData'
else
    [[ $quiet -eq 0 ]] && echo "Getting derived data folder for '$project_name'..."

    # path/to/DerivedData/project-12345/Build/Products
    build_dir=$(xcodebuild -project "$project_name" -showBuildSettings 2>/dev/null | grep -m 1 "BUILD_DIR" | grep -oEi "\/.*")

    # path/to/DerivedData/project-12345
    derived_data_dir=$(echo "${build_dir}" | rev | cut -d'/' -f3- | rev)

    if [[ -z "${derived_data_dir}" ]]; then
        [[ $quiet -eq 0 ]] && echo "Derived data already deleted"
        exit 0
    fi
fi


if [[ $dry_run -eq 1 ]]; then
    echo "Would delete ${derived_data_dir}"
    exit 0
fi

if [[ ! $force -eq 1 ]]; then
    while true; do
        read -rp "Delete ${derived_data_dir} [y/n]? "
        case "$REPLY" in
            [Yy][Ee]Ss]|[Yy])
                break
                ;;
            [Nn][Oo]|[Nn])
                [[ $quiet -eq 0 ]] && echo "Canceling without deleting anything."
                exit 1
                ;;
            *)
                ;;
        esac
    done
fi

rm -rf $derived_data_dir
[[ $quiet -eq 0 ]] && echo "Deleted ${derived_data_dir}"

license

MIT License

Copyright (c) 2022 Kevin Beaulieu

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.