makefiles/make0/utils/list_make_targets.sh

   1 # Adapted from https://gist.github.com/777954
   2
   3
   4 #
   5 # this gist can be used to list all targets, or - more correctly - rules,
   6 # that are defined in a Makefile (and possibly other included Makefiles)
   7 # and is inspired by Jack Kelly's reply to a StackOverflow question:
   8 #
   9 #   http://stackoverflow.com/questions/3063507/list-goals-targets-in-gnu-make/3632592#3632592
  10 #
  11 # I also found this script - http://www.shelldorado.com/scripts/cmds/targets - which does
  12 # something similar using awk, but it extracts targets from the "static" rules from a single
  13 # Makefile, meaning it ignores any included Makefiles, as well as targets from "dynamic" rules
  14 #
  15 # Notes:
  16 #
  17 # (1) the sed expression is "scraping" the make output, and will hence break of the output format ever changes
  18 # (2) the "-r" option excludes the built-in rules, as these are typically not relevant, but isn't required
  19 # (3) to improve the readability of the output, "| egrep -v '^.PHONY:'" can be appended to the pipeline
  20 # (4) implementation as a shell alias or as a Makefile target left as an exercise to the reader :-)
  21 #
  22
  23 #
  24 # in the directory containing your Makefile:
  25 #
  26 #make -rpn | sed -n -e '/^$/ { n ; /^[^ ]*:/p }'
  27
  28 #
  29 # ... or add a touch of color by highlighting the targets in the rules:
  30 #
  31 make -rpn | sed -n -e '/^$/ { n ; /^[^ ]*:/p }' | egrep --color '^[^ ]*:'