Initial import

build/do

@@ -0,0 +1,54 @@
+#-*-mode:sh;indent-tabs-mode:nil;tab-width:2;coding:utf-8-*-┐
+#───vi: set net ft=sh ts=2 sts=2 fenc=utf-8 :vi─────────────┘
+#
+# OVERVIEW
+#
+#   Generic Command Runner
+#
+# DESCRIPTION
+#
+#   This does auto mkdir and ephemeral logging.
+#
+# EXAMPLE
+#
+#   build/do PROG [ARGS...]
+
+MKDIR=${MKDIR:-$(command -v mkdir) -p} || exit
+
+# Ensure directory creation if -o PATH flag is passed.
+OUT=
+FIRST=1
+OUTARG=0
+for x; do
+  if [ $FIRST -eq 1 ]; then
+    set --
+    FIRST=0
+  elif [ $OUTARG -eq 1 ]; then
+    OUTARG=0
+    OUT="$x"
+  fi
+  case "$x" in
+    -o)
+      OUTARG=1
+      ;;
+    -o*)
+      OUT=${x#-o}
+      ;;
+  esac
+  set -- "$@" "$x"
+done
+if [ "$OUT" ]; then
+  OUTDIR="${OUT%/*}"
+  if [ "$OUTDIR" != "$OUT" ] && [ ! -d "$OUTDIR" ]; then
+    $MKDIR "$OUTDIR" || exit 2
+  fi
+fi
+
+# Log command.
+if [ "$SILENT" = "0" ]; then
+  printf "%s\n" "$*" >&2
+else
+  printf "$LOGFMT" "${ACTION:-BUILD}" "$TARGET" >&2
+fi
+
+exec "$@"