pandoc-make: confirm before overwriting md and tex files (guess why I

added this 🙄)

.config/shell/bin/pandoc-make

@@ -22,6 +22,17 @@ usage() {
 #		    2) You can set default arguments in the array PANDOC_DEFAULT_ARGS and export them for this script to use
 }
 
+confirm() {
+   echo -n "$@"
+   while true; do
+      read -r YN
+      case "$YN" in
+         [Yy]) return 0 ;;
+         *) return 1 ;;
+      esac
+   done
+}
+
 # Help menu (yes, I forget how to use my own programs sometimes)
 if [[ -z "$1" ]]; then
    usage && exit 1
@@ -36,16 +47,43 @@ if [[ -z "$2" ]]; then
 fi
 
 OUTPUT_FORMAT="$1"
-SKIP_FIRST=true  # don't process the first argument, it is the output format
+SKIP=true  # don't process the first argument, it is the output format
 
 for FILE in "$@";do
-   $SKIP_FIRST && SKIP_FIRST=false && continue
+   $SKIP && SKIP=false && continue
+
    # PANDOC_ARGS="${PANDOC_DEFAULT_ARGS[*]:-"$PANDOC_ARGS"}"
    if [[ -f "$FILE" ]] && { [[ "${FILE:0:2}" != "./" ]] || [[ "${FILE:0:3}" != "../" ]]; }; then
-      pandoc -s "$FILE" "${PANDOC_ARGS[@]}" -o "${FILE%.*}.${OUTPUT_FORMAT##.}"
+
+      OUTPUT_FILE="${FILE%.*}.${OUTPUT_FORMAT##.}"
+
+      # Guard against overwriting md files and tex files
+      if { [[ "$OUTPUT_FORMAT" = md ]] || [[ "$OUTPUT_FORMAT" = tex ]]; } && [[ -f "$OUTPUT_FILE" ]]; then
+         if confirm "Overwrite $FILE? [y/N]: "; then
+
+            # Make new file names until there is no overwriting
+            while [[ -f "$OUTPUT_FILE" ]]; do
+               OUTPUT_FILE="${FILE%.*}-$((FILE_NUM++)).${OUTPUT_FORMAT##.}"
+            done
+            echo "Not overwriting, new name: '$OUTPUT_FILE'"
+         else
+            # Give some time to ctrl-c before overwrite…
+            SLEEP_DURATION=1
+            echo -n "'$FILE' will be overwritten in"
+            for N in {3..1};do
+               echo -n " $N"  && sleep $SLEEP_DURATION
+            done
+            echo
+         fi
+      fi
+
+      pandoc "${PANDOC_ARGS[@]}" -o "$OUTPUT_FILE" "$FILE"
       PANDOC_ARGS=()
+
    else
+
       PANDOC_ARGS+=("$FILE")
+
    fi
 done