57 lines
1.3 KiB
Plaintext
57 lines
1.3 KiB
Plaintext
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#!/bin/bash
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BLUE='\033[34m'
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GREEN='\033[32m'
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BOLD='\033[1m'
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NORMAL='\033[0m'
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MARK="@COMPILECMD "
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MARKSTR="${BLUE}@COMPILECMD${NORMAL}"
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enable -n echo
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usage() {
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IFSTR="${GREEN}<input_file>${NORMAL}"
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echo -e "${BOLD}Usage: $0 <input_file>${NORMAL}" >&2
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echo -e "\t$0 runs the value of ${MARKSTR}." >&2
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echo -e "\tThe point of this script is ease to compialation of singe source file (toy) programs." >&2
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echo -e "\tThe value of ${MARKSTR} is read from ${IFSTR} in is whatever comes after '${MARK}' until the end of the line." >&2
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echo -e "\tInside the value of ${MARKSTR} all mentions of special placeholders are replaced:" >&2
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echo -e "\t\t${BLUE}\$@${NORMAL} - ${IFSTR}"
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echo -e "\t\t${BLUE}\$*${NORMAL} - ${IFSTR} with the last extension cut off"
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}
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if [[ $# -ne 1 ]]; then
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usage
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exit 1
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fi
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if [[ $1 == "-h" ]] || [[ $1 == "--help" ]]; then
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usage
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exit 0
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fi
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input_file=$1
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if [[ ! -f $input_file ]]; then
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echo -e "Input file '$input_file' does not exist." >&2
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exit 1
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fi
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line=$(grep "$MARK" "$input_file" | head -1)
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line=${line//\$@/$input_file}
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line=${line//\$\*/${input_file%.*}}
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if [[ -n $line ]]; then
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command="${line#*@COMPILECMD }"
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echo "$command"
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eval "$command"
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else
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echo -e "${MARKSTR} is not defined." >&2
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fi
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