1 files changed, 98 insertions, 0 deletions
diff --git a/packaging/macos/jhb/usr/src/bash_d/bash_d.sh b/packaging/macos/jhb/usr/src/bash_d/bash_d.sh
new file mode 100644
index 0000000..e0715b4
--- /dev/null
+++ b/packaging/macos/jhb/usr/src/bash_d/bash_d.sh
@@ -0,0 +1,98 @@
+# SPDX-FileCopyrightText: 2021 René de Hesselle <dehesselle@web.de>
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+### description ################################################################
+
+# Provide an include guard to be used in every script to protect them from
+# being sourced multiple times.
+
+### shellcheck #################################################################
+
+# shellcheck shell=bash # no shebang as this file is intended to be sourced
+
+### dependencies ###############################################################
+
+# All of these need to be "or true" because they fail on the first run.
+
+bash_d_include echo   2>/dev/null || true
+bash_d_include assert 2>/dev/null || true
+
+### variables ##################################################################
+
+BASH_D_DIR=${BASH_D_DIR:-$(dirname "${BASH_SOURCE[0]}")}
+
+if [ "$BASH_D_FAIL_ON_INCLUDE_ERROR" != "false" ]; then
+  BASH_D_FAIL_ON_INCLUDE_ERROR=true
+fi
+
+### functions ##################################################################
+
+function bash_d_include_all
+{
+  local includes
+  includes=$(mktemp "$TMP/${FUNCNAME[0]}".XXXXXX)
+
+  echo "BASH_D_FAIL_ON_INCLUDE_ERROR=false" >> "$includes"
+  for file in "$BASH_D_DIR"/*.sh; do
+    echo "bash_d_include $(basename "$file")" >> "$includes"
+  done
+  echo "BASH_D_FAIL_ON_INCLUDE_ERROR=true" >> "$includes"
+
+  # shellcheck disable=SC1090 # dynamic sourcing on purpose
+  source "$includes"
+  rm "$includes"
+}
+
+function bash_d_is_included
+{
+  local file=$1
+
+  #shellcheck disable=SC2076 # we want literal match, not regex
+  if [[ " ${BASH_D_INCLUDE_FILES[*]} " =~ \
+        " $BASH_D_DIR/$(basename -s .sh "$file").sh " ]]; then
+    return 0
+  else
+    return 1
+  fi
+}
+
+### aliases ####################################################################
+
+# shellcheck disable=SC2142 # too much trickery for shellcheck to digest
+alias bash_d_include=\
+'declare -a BASH_D_INCLUDE_FILES; '\
+'BASH_D_INCLUDE_FILE=$(sed -n ${LINENO}p ${BASH_SOURCE[0]} | awk '"'"'{ print $2 }'"'"'); '\
+'BASH_D_INCLUDE_FILE=$BASH_D_DIR/$(basename -s .sh $BASH_D_INCLUDE_FILE).sh; '\
+'if [[ " ${BASH_D_INCLUDE_FILES[@]} " =~ " ${BASH_D_INCLUDE_FILE} " ]]; then '\
+'  : ; '\
+'else '\
+'  if  [ "$BASH_D_INCLUDE_FILE" = "$BASH_D_DIR/bash_d.sh" ] && '\
+'        [ ${#BASH_D_INCLUDE_FILES[@]} -gt 0 ] || '\
+'      source $BASH_D_INCLUDE_FILE; then '\
+'    BASH_D_INCLUDE_FILE=$(sed -n ${LINENO}p ${BASH_SOURCE[0]} | awk '"'"'{ print $2 }'"'"'); '\
+'    BASH_D_INCLUDE_FILE=$BASH_D_DIR/$(basename -s .sh $BASH_D_INCLUDE_FILE).sh; '\
+'    BASH_D_INCLUDE_FILES+=("$BASH_D_INCLUDE_FILE"); '\
+'  else '\
+'    if alias | grep "echo_e" >/dev/null; then '\
+'      echo_e "$BASH_D_INCLUDE_FILE will be unavailable"; '\
+'    else '\
+'      >&2 echo "error: $BASH_D_INCLUDE_FILE will be unavailable"; '\
+'    fi; '\
+'    if [ "$BASH_D_INCLUDE_FILE" != "$BASH_D_DIR/bash_d.sh" ] && $BASH_D_FAIL_ON_INCLUDE_ERROR; then '\
+'      exit 1; '\
+'    fi '\
+'  fi '\
+'fi '\
+'# '
+
+### main #######################################################################
+
+if [ ! -d "$BASH_D_DIR" ]; then
+  echo "error: BASH_D_DIR=$BASH_D_DIR is invalid [${BASH_SOURCE[0]}]"
+  exit 1
+fi
+
+shopt -s expand_aliases
+
+bash_d_include bash_d   # Need to rerun so complete setting us up.