get docker working

main.sh

@@ -1,6 +1,13 @@
 #!/usr/bin/env bash
 
-REPO_DIR="$(cd "${BASH_SOURCE[0]//'main.sh'/}" && echo "$PWD")"
+# set top dir
+relativeRepoRoot="${BASH_SOURCE[0]//'main.sh'/}"
+if [[ -d ${relativeRepoRoot} ]]; then
+	preloadCmd="cd ${relativeRepoRoot} &&"
+fi
+REPO_DIR="$(${preloadCmd} echo "$PWD")"
+unset relativeRepoRoot preloadCmd
+
 IGN_DIR="${REPO_DIR}/gitignore"
 TMP_DIR="${IGN_DIR}/tmp"
 DL_DIR="${IGN_DIR}/downloads"
@@ -9,28 +16,28 @@ CCACHE_DIR="${IGN_DIR}/ccache"
 export REPO_DIR IGN_DIR TMP_DIR DL_DIR BUILD_DIR CCACHE_DIR
 
 # function names, descriptions, completions
+unset FB_FUNC_NAMES FB_FUNC_DESCS FB_FUNC_COMPLETION
 FB_FUNC_NAMES=()
-declare -A FB_FUNC_DESCS
-declare -A FB_FUNC_COMPLETION
+declare -A FB_FUNC_DESCS FB_FUNC_COMPLETION
 
 # can't have recursive generation
 FB_RUNNING_AS_SCRIPT=${FB_RUNNING_AS_SCRIPT:-0}
 
-# no undefined variables
-set -u
+# shellcheck disable=SC2034
+FB_COMPILE_OPTS_SET=0
 
 SCRIPT_DIR="${REPO_DIR}/scripts"
 ENTRY_SCRIPT="${SCRIPT_DIR}/entry.sh"
 src_scripts() {
 	local SCRIPT_DIR="${REPO_DIR}/scripts"
-	rm "${SCRIPT_DIR}"*.sh
 
 	if [[ $FB_RUNNING_AS_SCRIPT -eq 0 ]]; then
+		rm "${SCRIPT_DIR}"/*.sh
 		# shellcheck disable=SC2016
 		echo '#!/usr/bin/env bash
 cd "$(dirname "$(readlink -f $0)")/.."
+export FB_RUNNING_AS_SCRIPT=1
 . main.sh
-FB_RUNNING_AS_SCRIPT=1
 scr_name="$(bash_basename $0)"
 cmd="${scr_name//.sh}"
 $cmd $@' >"${ENTRY_SCRIPT}"
@@ -49,21 +56,21 @@ print_cmds() {
 	echo -e "\n~~~ Usable Commands ~~~"
 	for funcname in "${FB_FUNC_NAMES[@]}"; do
 		echo -e "${CYAN}${funcname}${NC}:\n\t" "${FB_FUNC_DESCS[${funcname}]}"
-		fb_running_as_script || (cd "$SCRIPT_DIR" && ln -sf entry.sh "${funcname}.sh")
+		if [[ $FB_RUNNING_AS_SCRIPT -eq 0 ]]; then
+			(cd "$SCRIPT_DIR" && ln -sf entry.sh "${funcname}.sh")
+		fi
 	done
 	echo -e "~~~~~~~~~~~~~~~~~~~~~~~\n"
 }
 
 set_completions() {
-	set +u
 	for funcname in "${FB_FUNC_NAMES[@]}"; do
 		complete -W "${FB_FUNC_COMPLETION[${funcname}]}" "${funcname}"
 	done
-	set -u
 }
 
 # shellcheck disable=SC1091
-source "${HOME}/.bashrc"
+test -f "${HOME}/.bashrc" && source "${HOME}/.bashrc"
 src_scripts || return 1
 determine_pkg_mgr || return 1
 
@@ -71,6 +78,7 @@ determine_pkg_mgr || return 1
 # shellcheck disable=SC2154
 test "${PREFIX}" == '' && PREFIX="${IGN_DIR}/${pkg_mgr}_sysroot"
 
-set_compile_opts || return 1
-fb_running_as_script || print_cmds || return 1
+if [[ $FB_RUNNING_AS_SCRIPT -eq 0 ]]; then
+	print_cmds || return 1
+fi
 set_completions || return 1