src/kr_exercises/ch1/s1.9/compile.sh

   1 #!/usr/bin/env bash
   2 # Desc: Check sytnax and compiles file using gcc
   3 # Usage: compile.sh mysource.c
   4
   5 yell() { echo "$0: $*" >&2; } # print script path and all args to stderr
   6 die() { yell "$*"; exit 111; } # same as yell() but non-zero exit status
   7 try() { "$@" || die "cannot $*"; } # runs args as command, reports args if command fails
   8 main() {
   9     # Check arg
  10     if [[ $# -ne 1 ]]; then die "FATAL:Incorrect argument count:$#"; fi;
  11     if [[ ! -f $1 ]]; then die "FATAL:Not a file:$1"; else f="$1"; fi;
  12
  13     # Set var names
  14     f="$(readlink -f $f)"; fe="${f%.c}";
  15     yell "DEBUG:f :$f";
  16     yell "DEBUG:fe:$fe";
  17
  18     # Check syntax
  19     if ! try gcc -fsyntax-only "$f"; then die "FATAL:Syntax Error."; fi;
  20
  21     # Compile
  22     time { try gcc -o "$fe" "$f"; };
  23
  24     return 0;
  25 }; # main program
  26
  27 main "$@";
  28