#!/bin/bash

# This script is meant to be used as ./admin/emake, and will compile
# the Emacs tree with virtually all of the informational messages
# removed, and with errors/warnings highlighted in red.  It'll give a
# quick overview to confirm that nothing has broken, for instance
# after doing a "git pull".  It's not meant to be used during actual
# development, because it removes so much information that commands
# like `next-error' won't be able to jump to the source code where
# errors are.

cores=1

# Determine the number of cores.
if [ -f /proc/cpuinfo ]; then
    cores=$(($(egrep "^physical id|^cpu cores" /proc/cpuinfo |\
	awk '{ print $4; }' |\
	sed '$!N;s/\n/ /' |\
	uniq |\
	sed 's/^[0-9]*/+/')))
fi

make -j$cores "$@" 2>&1 | \
sed -u 's# \.\./\.\./# #
s# \.\./# #
s#^Configuring local git # Configuring local git #
s#^Installing git hooks...# Installing git hooks...#
s#^Running # Running #
s#^Configured for # Configured for #
s#^./temacs # ./temacs #
s#^Dumping under the name# Dumping under the name#
' | \
egrep --line-buffered -v "^make|\
^Loading|\
SCRAPE|\
INFO.*Scraping.*[.]\$|\
^Waiting for git|\
^Finding pointers|\
^Using load-path|\
^Adding name|\
^Dump mode|\
^Dumping finger|\
^Byte counts|\
^Reloc counts|\
^Pure-hashed|\
^cp -f temacs|\
^rm -f bootstrap|\
^Dump complete|\
^rm -f emacs|\
mkdir -p etc|\
mkdir -p info|\
mkdir -p lisp|\
^LC_ALL.*pdump|\
^cp -f emacs.p|\
GEN.*loaddefs|\
^Reloading stale|\
^Source file.*newer than|\
^Directories for loaddefs|\
^./autogen.sh|\
^[Cc]hecking |\
^.Read INSTALL.REPO for more|\
^Your system has the required tools.|\
^Building aclocal.m4|\
^ Running 'autoreconf|\
^You can now run './configure'|\
^./configure|\
^configure: creating|\
^\"configure\" file built.|\
^There seems to be no|\
^config.status:|\
^ *$|\
^Makefile built|\
The GNU allocators don't work|\
^git config |\
^'\.git/|\
^\^\(\(|\
^'build-aux/git-hooks\
" | \
while read
do
  C=""
  [[ "X${REPLY:0:1}" != "X " ]] && C="\033[1;31m"
  [[ "X${REPLY:0:3}" == "X   " ]] && C="\033[1;31m"
  [[ "X$C" == "X" ]] && printf "%s\n" "$REPLY" || printf "$C%s\033[0m\n" "$REPLY"
done