nim_mybuild.sh

#!/usr/bin/env bash
# Time-stamp: <2017-05-18 08:18:01 kmodi>

# Usage: ./mybuild.sh # Installs using origin/devel
#        ./mybuild.sh --rev v0.17.0
#        ./mybuild.sh --rev origin/master

set -euo pipefail # http://redsymbol.net/articles/unofficial-bash-strict-mode
IFS=$'\n\t'

nim_rev="origin/devel"

while [ $# -gt 0 ]
do
    case "$1" in
        "-r"|"--rev" ) shift
                       nim_rev="$1";;
        * ) echo >&2 "Error: Invalid option: $1"
    esac
    shift # expose next argument
done

# If ${nim_rev} is origin/master, ${nim_rev_basename} = master
# If ${nim_rev} is v0.17.0, ${nim_rev_basename} = v0.17.0
nim_rev_basename=$(basename "${nim_rev}")

git fetch --all # fetch new branch names if any
git checkout "${nim_rev_basename}"
git fetch --all
git reset --hard "${nim_rev}"

echo ""

wait_time=5 # seconds
temp_cnt=${wait_time}
# https://www.cyberciti.biz/faq/csh-shell-scripting-loop-example/
while [[ ${temp_cnt} -gt 0 ]];
do
    printf "\rWaiting for %2d second(s) .. Press Ctrl+C to cancel this installation." ${temp_cnt}
    sleep 1
    ((temp_cnt--))
done
echo ""

# https://github.com/nim-lang/Nim#compiling
if [[ ! -e ./csources ]]
then
    git clone --depth 1 https://github.com/nim-lang/csources.git
    cd csources
else
    cd csources
    git pull
fi
# We are now in the Nim/csources/ directory
sh build.sh
# We are now in the Nim/ directory
cd ../
./bin/nim c koch
./koch boot -d:release

echo "Version check:"
./bin/nim -v

# Build nimsuggest, nimgrep and nimble
./koch tools
# https://github.com/nim-lang/nimble#nimble-refresh
./bin/nimble refresh            # First time update of nimble package cache

# nim_install_dir="${STOW_PKGS_ROOT}/nim/${nim_rev_basename}"
# nim_install_dir="${HOME}/usr_local/6/bin"
nim_install_dir="${STOW_PKGS_ROOT}/nim/${nim_rev_basename}"
mkdir -p "${nim_install_dir}"

# Create a wrapper script that calls nim with few default options
# c is an alias for compile, which compiles the Nim sources into C and then
# invokes the C compiler on them
# -r is an alias for --run, which runs the program
# --verbosity:0 makes the compiler only output essential messages, since by
# default it also outputs some debugging messages.
echo '#!/usr/bin/env bash' > ./bin/nimm
echo 'nim c -r --verbosity:0 "$@"' >> ./bin/nimm
chmod 744 ./bin/nimm

cp -rf ./bin      "${nim_install_dir}"/.
cp -rf ./config   "${nim_install_dir}"/.
cp -rf ./lib      "${nim_install_dir}"/.
cp -rf ./doc      "${nim_install_dir}"/.
cp -rf ./examples "${nim_install_dir}"/.
cp -rf ./compiler "${nim_install_dir}"/.

echo ""
echo "Now update the '~/scripts/bash/stow_it.sh' script and rerun that script if needed."
echo "  That would be needed if you are installing 'nim' for the first time, or changing the version."