From ec813227662caaa5434a528768f7c1467172be89 Mon Sep 17 00:00:00 2001
From: Lucio Andrés Illanes Albornoz (arab, vxp) <l.illanes@gmx.de>
Date: Jul 21 2016 11:22:46 +0000
Subject: Adds -pi (old -i, insert build script) and -pr (remove build script.)


---

diff --git a/build.sh b/build.sh
index a09f1b3..a6977fa 100755
--- a/build.sh
+++ b/build.sh
@@ -15,7 +15,8 @@ case ${1} in
 -x)	ARG_XTRACE=1; set -o xtrace; ;;
 -a)	[ -z "${2}" ] && exec cat build.usage || ARCH="${2}"; shift; ;;
 -b)	[ -z "${2}" ] && exec cat build.usage || BUILD="${2}"; shift; ;;
--i)	[ -z "${2}" ] && exec cat build.usage || insert_build_script_link "${2}"; exit; ;;
+-pi)	[ -z "${2}" ] && exec cat build.usage || insert_build_script_link "${2}"; exit; ;;
+-pr)	[ -z "${2}" ] && exec cat build.usage || remove_build_script_link "${2}"; exit; ;;
 -r)	[ -n "${ARG_RESTART_SCRIPT}" ] && exec cat build.usage;
 	if [ "${2#*:*}" != "${2}" ]; then
 		ARG_RESTART_SCRIPT="${2%%:*}"; ARG_RESTART_SCRIPT_AT="${2##*:}";
diff --git a/build.subr b/build.subr
index fc3ab1d..237f48c 100644
--- a/build.subr
+++ b/build.subr
@@ -64,9 +64,9 @@ insert_build_script_link() {
 	_ibsl_fname=${1};
 	_ibsl_level=${_ibsl_fname%%.*};
 	_ibsl_name=${_ibsl_fname#*.}; _ibsl_name=${_ibsl_name%.build};
-	if [ -z "${_ibsl_fname}" -o -z "${_ibsl_level}"	\
-			-o -z "${_ibsl_name}" ]		\
-			|| ! isnumber ${_ibsl_level}	\
+	if [ -z "${_ibsl_fname}" -o -z "${_ibsl_level}"				\
+			-o -z "${_ibsl_name}" ]					\
+			|| ! isnumber ${_ibsl_level}				\
 			|| [ ${#_ibsl_level} != 3 ]; then
 		log_msg failexit "Error: invalid or empty build script filename/level/name.";
 	elif [ -e ${_ibsl_fname} ]; then
@@ -77,8 +77,8 @@ insert_build_script_link() {
 		unset _ibsl_fname _ibsl_level _ibsl_name;
 		return 0;
 	else
-		_ibsl_levels="$(find -maxdepth 1 -name		\
-			 ${_ibsl_level%[0-9][0-9]}\[0-9\]\[0-9\].\*	\
+		_ibsl_levels="$(find -maxdepth 1 -name	\
+			 ${_ibsl_level%[0-9][0-9]}\[0-9\]\[0-9\].\*		\
 			-printf '%P\n' | sort -nk1)";
 	fi;
 	for _ibsl_fname_cur in ${_ibsl_levels}; do
@@ -89,13 +89,14 @@ insert_build_script_link() {
 			_ibsl_changed=1;
 		fi;
 		if [ ${_ibsl_changed:=0} -eq 1 ]; then
-			if [ -z "$(find -maxdepth 1 -name $((${_ibsl_fname_cur%%.*}+1)).\*	\
+			if [ -z "$(find -maxdepth 1				\
+					-name $((${_ibsl_fname_cur%%.*}+1)).\*	\
 					-printf '%P\n' -quit)" ]; then
 				_ibsl_last=1;
 			fi;
-			echo mv -- ${_ibsl_fname_cur}	\
+			echo mv -- ${_ibsl_fname_cur}				\
 				$((${_ibsl_fname_cur%%.*}+1)).${_ibsl_fname_cur#*.};
-			mv -- ${_ibsl_fname_cur}	\
+			mv -- ${_ibsl_fname_cur}				\
 				$((${_ibsl_fname_cur%%.*}+1)).${_ibsl_fname_cur#*.};
 			if [ ${_ibsl_last:-0} -eq 1 ]; then
 				break;
@@ -119,6 +120,28 @@ isnumber() {
 		fi;
 	done; unset _i_num; return 0;
 };
+remove_build_script_link() {
+	_rbsl_fname=${1};
+	_rbsl_level=${_rbsl_fname%%.*};
+	_rbsl_name=${_rbsl_fname#*.}; _rbsl_name=${_rbsl_name%.build};
+	if [ -z "${_rbsl_fname}" -o -z "${_rbsl_level}"				\
+			-o -z "${_rbsl_name}" ]					\
+			|| ! isnumber ${_rbsl_level}				\
+			|| [ ${#_rbsl_level} != 3 ]; then
+		log_msg failexit "Error: invalid or empty build script filename/level/name.";
+	elif [ ! -e ${_rbsl_fname} ]; then
+		log_msg failexit "Error: build script \`${_rbsl_fname}' doesn't exist.";
+	else for _rbsl_fname_cur in $(find -maxdepth 1				\
+			-name ${_rbsl_level%[0-9][0-9]}\[0-9\]\[0-9\].\*	\
+			-printf '%P\n' | sort -nk1); do
+		_rbsl_fname_cur_level=${_rbsl_fname_cur%%.*};
+		if [ ${_rbsl_fname_cur_level} -gt ${_rbsl_level} ]; then
+			echo mv ${_rbsl_fname_cur}			\
+				$(printf "%03u"				\
+					$((${_rbsl_fname_cur_level#00}-1))).${_rbsl_fname_cur#*.};
+		fi;
+	done; fi;
+};
 
 is_build_script_done() {
 	if [ -n "${ARG_RESTART_SCRIPT_AT}" ]; then
diff --git a/build.usage b/build.usage
index 59677ed..5a105c0 100644
--- a/build.usage
+++ b/build.usage
@@ -1,13 +1,17 @@
-usage: ./build.sh [-a nt32|nt64] [-b debug|release] [-c] [-h] [-i level.name.build]
-                  [-r ALL|level.name.build[:diff|:step[,...]]] [-t[.gz|.bz2|.xz] [-x]
+usage: ./build.sh [-a nt32|nt64] [-b debug|release] [-c] [-h] [-pi level.name.build]
+                  [-pr level.name.build] [-r ALL|level.name.build[:diff|:step[,...]]]
+                  [-t[.gz|.bz2|.xz] [-x]
         -a nt32|nt64           Selects 32-bit or 64-bit architecture; defaults to nt64.
         -b debug|release       Selects debug or release build; defaults to debug.
                                This currently only controls CFLAGS.
         -c                     Clean ${PREFIX} before processing build scripts.
         -h                     Show this screen.
-        -i level.name.build    Insert link to pkg.build for the specified build script.
+        -pi level.name.build   Insert link to pkg.build for the specified build script.
                                All consecutive scripts with higher build levels will
                                be renamed automatically.
+        -pr level.name.build   Remove the specified build script. As with -pi, all con-
+                               secutive scripts with higher build levels will be renamed
+                               automatically.
         -r ALL|level.name.build[:step[,...]]
                                Restart all or the specified build script(s) completely
                                or at the optionally specified build step. Currently defined