From 2eefd096122d569e244fd84dee9a02920fd87499 Mon Sep 17 00:00:00 2001
From: Steven <steven.vasilogianis@gmail.com>
Date: Tue, 9 Nov 2021 16:30:53 -0500
Subject: Generate skeleton shell scripts

---
 shopenscad.sh | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/shopenscad.sh b/shopenscad.sh
index e8b350f..6d85de6 100755
--- a/shopenscad.sh
+++ b/shopenscad.sh
@@ -8,6 +8,7 @@ INTERACTIVE=
 PRINT_VARS=
 USER_OUTPUT_FILENAME=
 SCAD_FILE=
+SHELL_SKEL=
 
 help()
 {
@@ -22,6 +23,7 @@ Usage: $0 [-h] [-n] [-p] [-i] [-o OUTPUT-FILENAME] INPUT.scad
  -p, --print-vars      print variables parsed from INPUT.scad
  -i, --interactive     show output command and query for execution
  -n, --no-act          show output command, do not execute
+ -s, --shell-skel      initialize a skeleton shell script
  -o, --output-filename Specify an output filename. The following variables are
                        available to you:
 
@@ -62,8 +64,8 @@ EOF
 parse_options()
 {
     OPTS=$(getopt \
-               --options 'hpino:' \
-               --longoptions 'help,print-vars,interactive,no-act,output-filename:' \
+               --options 'hpinso:' \
+               --longoptions 'help,print-vars,interactive,no-act,shell-skel,output-filename:' \
                -- "$@")
     eval set -- "$OPTS"
     unset OPTS
@@ -79,6 +81,7 @@ parse_options()
             -p | --print-vars      ) PRINT_VARS=y;;
             -i | --interactive     ) INTERACTIVE=y;;
             -n | --no-act          ) RUN=;;
+            -s | --shell-skel      ) SHELL_SKEL=y;;
             -o | --output-filename ) shift; USER_OUTPUT_FILENAME=$1;;
             --                     ) shift; break;;
         esac
@@ -189,6 +192,18 @@ main()
         exit
     fi
 
+    if [ "$SHELL_SKEL" ]; then
+        all_vars=$($0 $SCAD_FILE -p |sed -e 's/^/# /')
+        cat <<EOF
+#!/bin/bash
+shopenscad_cmd="$0 $SCAD_FILE "
+export \$(echo \$(\$shopenscad_cmd -p))
+${all_vars}
+\$shopenscad_cmd
+EOF
+        exit;
+    fi;
+
     ALL=$(strip_trailing "$var_sep" "$ALL")
     VALUES=$(strip_trailing "$val_sep" "$VALUES")
 
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