90 lines
2.3 KiB
Bash
Executable file
90 lines
2.3 KiB
Bash
Executable file
#!/usr/bin/env bash
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set -e
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source argparse.bash
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functions=; def_arg functions f value default "${XDG_CONFIG_HOME:-"$HOME/.config"}/mgmt/functions"
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modules=; def_arg modules m value default "${XDG_CONFIG_HOME:-"$HOME/.config"}/mgmt/modules"
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positional=(); parse_args "$@"
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while IFS= read -rd '' fnfile; do
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source "$fnfile"
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done < <(find "$functions" -type f -print0)
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PREFIX=""
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grey() { printf "\33[37;2m%s\33[0;m" "$*"; }
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red() { printf "\33[31;1m%s\33[0;m" "$*"; }
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diag() {
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>&2 printf "\33[2K\r%s" "$(grey "$PREFIX")"
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>&2 echo "$@"
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}
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join_by() { local IFS="$1"; shift; echo "$*"; }
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filter_by_args() { grep -E "$(join_by '|' "${positional[@]}")"; }
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#####
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# Gather dependencies of (filtered) modules
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#####
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declare -a found_modules
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mapfile -t filtered_mods < <(find "$modules" -type f | filter_by_args)
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set -- "${filtered_mods[@]}"
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while [ $# -gt 0 ]; do
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unset deps; declare -a deps
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for mod; do
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if echo "${found_modules[@]}" | grep -q "$mod"; then
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continue
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fi
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found_modules+=( "$mod" )
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unset DEPENDS
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source "$mod"
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for dep in "${DEPENDS[@]}"; do
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if echo "${found_modules[@]}" | grep -qv "$dep"; then
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if echo "${deps[@]}" | grep -qv "$dep"; then
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deps+=( "$dep" )
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fi
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fi
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done
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done
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set -- "${deps[@]}"
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done
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#####
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# Resolve dependency ordering
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#####
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declare -a ordered_modules
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set -- "${found_modules[@]}"
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while [ $# -gt 0 ]; do
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unset remaining; declare -a remaining
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for mod; do
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unset DEPENDS
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source "$mod"
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if [[ -n "$(comm -23 <(printf -- '%s\n' "${DEPENDS[@]}" | sort) <(printf -- '%s\n' "${ordered_modules[@]}" | sort))" ]]; then
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remaining+=( "$mod" )
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else
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ordered_modules+=( "$mod" )
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fi
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done
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if [ $# -eq ${#remaining[@]} ]; then
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diag "$(red "Error: dependency loop involving ${remaining[*]}")"
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exit 1
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fi
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set -- "${remaining[@]}"
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done
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#####
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# Apply modules
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#####
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sudo -v
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set -- "${ordered_modules[@]}"
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for mod; do
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diag -e "\nApplying $mod"
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PREFIX="[$mod] "
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unset check_setup setup check_apply apply
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source "$modules/$mod"
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test "$(declare -F check_setup)" || { check_setup() { false ; } }
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test "$(declare -F check_apply)" || { check_apply() { false ; } }
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test "$(declare -F setup)" || { setup() { true; } }
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test "$(declare -F apply)" || { apply() { true; } }
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check_setup || setup
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check_apply || apply
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PREFIX=""
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done
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