- hooks load the _stack files of every directory between the stack path root and the stack, outermost first: make included both $(dir)/*.mk and $(dir)/*/*.mk, so a stack in a subdirectory saw its parent's settings - a group may be declared in <group>/<group>.env, where the stack lives - MYOS_STACK_DIR lets a hook read a file it ships next to itself - myos_filter no longer confuses a literal * in a make pattern with a wildcard, and the list helpers no longer let the shell expand a * into filenames - MACHINE, SYSTEM, HOST and DOMAINNAME join the framework variables a hook sees - the make shim gains $(call myos-var,NAME), so a .mk target can read a setting that now lives in a hook, and it picks up the .mk of every stack directory rather than only the project's
70 lines
2.3 KiB
Bash
70 lines
2.3 KiB
Bash
#shellcheck shell=sh
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# shellcheck disable=SC1090 # hooks are sourced by a path built at run time
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# hooks: the per-stack settings that used to live in a .mk file.
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#
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# A stack directory may ship, next to its compose files:
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# _stack.env settings shared by every stack of the directory
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# _stack.sh the same, computed
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# <name>.env settings of one stack
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# <name>.env.<env> the same, for one environment
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# <name>.sh computed settings of one stack
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# <name>.mk the legacy make snippet, still read for its groups
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#
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# A .sh hook declares lazy defaults (see lib/var.sh): functions named
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# myos_default_<VARIABLE>, called only when the variable has no value and
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# called again at each reference. That is a make `?=` on a recursive variable,
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# and it is what lets a stack of the catalogue work without make installed.
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#
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# The _stack hooks of every directory between the stack path root and the stack
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# itself are loaded, outermost first: make included both $(dir)/*.mk and
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# $(dir)/*/*.mk, so a stack in a subdirectory saw its parent's settings.
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# myos_stack_hooks DIR NAME load the hooks that apply to one stack
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myos_stack_hooks() {
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_hdir=$1; _hname=$2
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# the stack path entry this directory belongs to
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_root=
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_IFS=$IFS; IFS=:
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for _r in $(myos_path); do
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IFS=$_IFS
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case $_hdir in "$_r"|"$_r"/*) _root=$_r; break ;; esac
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IFS=:
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done
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IFS=$_IFS
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# every directory from the root down to the stack, outermost first
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_chain=$_hdir
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if [ -n "$_root" ]; then
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_d=$_hdir
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while [ "$_d" != "$_root" ] && [ "$_d" != "/" ] && [ -n "$_d" ]; do
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_d=$(dirname "$_d")
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_chain="$_d
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$_chain"
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done
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fi
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for _d in $_chain; do
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myos_hook_load "$_d/_stack.env" dotenv
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myos_hook_load "$_d/_stack.sh" shell
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done
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myos_hook_load "$_hdir/$_hname.env" dotenv
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myos_hook_load "$_hdir/$_hname.env.$ENV" dotenv
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myos_hook_load "$_hdir/$_hname.sh" shell
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myos_hook_load "$_hdir/$_hname.$ENV.sh" shell
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return 0
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}
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# myos_hook_load FILE KIND
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myos_hook_load() {
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[ -f "$1" ] || return 0
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myos_debug "hook $1"
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# a hook may need to read a file it ships next to itself
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# shellcheck disable=SC2034 # read by the hooks sourced below
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MYOS_STACK_DIR=$(dirname "$1")
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case $2 in
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dotenv) myos_dotenv_load "$1" ;;
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shell) . "$1" ;;
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esac
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}
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