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+#!/bin/sh
+### CRIMSON --- A simple PHP framework.
+### Copyright © 2024 Freya Murphy <contact@freyacat.org>
+###
+### This file is part of CRIMSON.
+###
+### CRIMSON is free software; you can redistribute it and/or modify it
+### under the terms of the GNU General Public License as published by
+### the Free Software Foundation; either version 3 of the License, or (at
+### your option) any later version.
+###
+### CRIMSON is distributed in the hope that it will be useful, but
+### WITHOUT ANY WARRANTY; without even the implied warranty of
+### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+### GNU General Public License for more details.
+###
+### You should have received a copy of the GNU General Public License
+### along with CRIMSON. If not, see <http://www.gnu.org/licenses/>.
+
+# `compose`
+# This script will provide a docker compose interface with all the CRIMSON
+# environment setup. This script may request root privilages since it needs all
+# docker containers to run with user 1000:1000. If you are not user 1000:1000,
+# root privlage is required to create volume folders with uid/gid 1000.
+
+# Make sure errors fail to avoid nasal demons
+set -e
+
+# ========================================================= PERMISSION CHECK ==
+# Make sure we are either root or user 1000:1000. This is required for crimson.
+
+args="$@"
+command="$0 $args"
+
+uid=$(id -u)
+gid=$(id -g)
+
+if [[ $uid -eq 1000 ]] && [[ $gid -eq 1000 ]]; then
+	true # all set
+elif [[ $uid -eq 0 ]] && [[ $gid -eq 0 ]]; then
+	true # all set
+else
+	# root required (1000:1000 may not exist)
+	exec sudo -E $command
+fi
+
+# ========================================================= LOAD ENVIRONMENT ==
+# We need to load the environment variables provided by crimson and the user
+# making the project.
+SCRIPT_DIR="$(dirname "$0")"
+source "$SCRIPT_DIR/setup_env"
+
+# ================================================================ BOOTSTRAP ==
+# Choose which docker compose files are to be loaded, and setup which arguemnts
+# to pass into docker compose.
+
+docker_args=""
+
+# add env files to docker args
+
+docker_env_args=$(echo "$ENV_FILES" | tr ':' '\n' | sed 's/^/--env-file /' | tr '\n' ' ')
+docker_args="$docker_args $docker_env_args"
+
+# get list of env files for docker containers
+
+docker_env_files="[$(echo "$ENV_FILES" | tr ':' "\n" | sed 's/.*/"&"/' | tr '\n' ',')]"
+
+# add compose files to docker args
+
+function include_docker {
+	local name src dest bool
+	name="docker-compose.$1.yml"
+	src="$CRIMSON_ROOT/docker/$name"
+	dest="/tmp/crimson/docker/$name"
+
+	bool="$2"
+	if [[ "$bool" == "true" ]]; then
+
+		mkdir -p "$(dirname "$dest")"
+		sed "s#DOCKER_ENV_FILES#$docker_env_files#" "$src" > "$dest"
+
+		docker_args="$docker_args -f $dest"
+	fi
+}
+
+include_docker	"base"	"true"
+include_docker	"db"	"$POSTGRES_ENABLED"
+include_docker	"api"	"$API_ENABLED"
+
+# set project name
+
+docker_args="$docker_args -p $PROJECT_NAME"
+
+# source check
+
+if [ ! -d "$PROJECT_SOURCE" ]; then
+	printf "fatal: cannot find PROJECT_SOURCE: '$PROJECT_SOURCE'\n" > /dev/stderr
+	exit 1
+fi
+
+# data check
+
+if [ ! -d "$PROJECT_DATA" ]; then
+	mkdir -p "$PROJECT_DATA"
+	mkdir -p "$PROJECT_DATA/schemas"
+	mkdir -p "$PROJECT_DATA/crimson"
+	chown -R 1000:1000 "$PROJECT_DATA"
+fi
+
+# run docker compose
+
+exec -a docker -- docker compose $docker_args "$@"