stow_it.sh

#!/usr/bin/env bash
# Time-stamp: <2018-05-11 15:59:07 kmodi>

# Script to stow packages from ${STOW_PKGS_ROOT} to ~/stowed
# Usage: stow_it.sh (That's it; from any directory)

# This script uses the unofficial strict mode as explained in
# http://redsymbol.net/articles/unofficial-bash-strict-mode

# Also checks have been done with www.shellcheck.net to have a level of
# confidence that this script will be free of loopholes.. or is it? :)

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

pkgs=("stow               | master"
      "ripgrep            | master"
      "boxes              | master"
      "progress           | master"
      "tokei              | master"
      "tmux               | master"
      "python             | 3.6.2"
      "node               | 8.11.1"
      "make               | 4.2"
      "nim                | devel"
      "asciidoc           | 8.6.9"        # Required to build git man page
      "docbook2X          | 0.8.8"        # Required to build git Info manual
      "git                | master"
      "shellcheck         | master"
      "eless              | master"
      "perl5              | master"
      "nnn                | master"
      "pandoc             | 2.0.1.1"
      "ctags              | master"
      "global             | 6.5.7"
      "ack                | master"
      "libgit2            | master" # Required for stagit
      "stagit             | master"
      "renameutils        | 0.12.0"
      "moreutils          | 0.61"
      # "gettext            | 0.19.8.1" # Required for coreutils only when building it from git
      # "texinfo            | 6.4" # Required for coreutils only when building it from git.
      "gmp                | 6.1.2" # Required for coreutils
      "coreutils          | v8.28"
      "gdb                | 8.0.1"
      "ag                 | master"
      "hugo               | master"
      "exa                | master"
      "ncurses            | 6.0"   # For tmux, ncurses built with --enable-widec for htop, built with -fPIC for guile
      "htop               | master"
      "libtool            | 2.4.6" # For libltdl, required for guile
      "libunistring       | 0.9.7" # Required for guile
      "gc                 | 7.2g"  # For bdw-gc, required for guile
      "guile              | master"
      "ncdu               | 1.13"
      "bfs                | master"
      "minify             | master"
      "scattered          | master"
      "peco               | master"
      "tidy_html5         | next"
      "inim               | master"
      "xapian_core        | 1.4.5"
     )
dotfiles=("tcsh"
          "git"
          "tmuxp"
          "noti"
          "misc"
          "ripgrep"
          "modules"
          "isso"
         )
pub_dotfiles=("Xdefaults"
              "ack"
              "ctags"
              "emacs"
              "gem"
              "global"
              "keysnail"
              "percol"
              "tmux"
              "python_stuff"
             )
pub_config_dotfiles=("ranger"
                     "peco"
                     "fontconfig"
                    )

if [[ -z ${STOW_PKGS_ROOT+x} ]]
then
    export STOW_PKGS_ROOT="${HOME}/stow/pkgs"
fi

if [[ -z ${STOW_DOTFILES_ROOT+x} ]]
then
    export STOW_DOTFILES_ROOT="${HOME}/stow/dotfiles"
fi

if [[ -z ${STOW_PUB_DOTFILES_ROOT+x} ]]
then
    export STOW_PUB_DOTFILES_ROOT="${HOME}/stow/pub_dotfiles"
fi

# STOW_PKGS_TARGET is where stow will create all the symlinks
if [[ -z ${STOW_PKGS_TARGET+x} ]]
then
    export STOW_PKGS_TARGET="${HOME}/stowed"
fi

verbose_switch='--verbose=0'    # levels are from 0 to 5
# Do not manage info/dir files as that causes stow conflicts
#   https://unix.stackexchange.com/a/73433/57923
# Later re-build the dir file.
# Do not stow files that have ".nostow." in their names, like "README.nostow.org".
ignore_switch="--ignore='info\\/dir$' --ignore='\\.nostow\\..+' --ignore='\\.bkp'"

# The stow binary is installed in ${STOW_PKGS_ROOT}/stow/master/bin
PATH=${STOW_PKGS_ROOT}/stow/master/bin:$PATH

here=$(pwd)

# Generate a directory structure for the target directory
cd "${STOW_PKGS_ROOT}"/.. || exit # https://github.com/koalaman/shellcheck/wiki/SC2164
rm -rf dir_struct
mkdir -p dir_struct/{bin,etc,include,lib/{pkgconfig,perl5},lib64,libexec,share/{aclocal,doc,info,locale/{af,be,bg,ca,ca.us-ascii,cs,da,de,de.us-ascii,de_AT,el,en@boldquot,en@quot,eo,es,et,eu,fi,fr,ga,gl,he,hr,hu,id,is,it,ja,ko,ms,nb,nl,nn,no.us-ascii,pa,pl,pt,pt.us-ascii,pt_BR,pt_BR.us-ascii,pt_PT,ro,ru,rw,sk,sl,sr,sv,tr,uk,vi,zh_CN,zh_HK,zh_TW}/LC_MESSAGES,man/man{1..8}}}
touch    dir_struct/{bin,etc,include,lib/{pkgconfig,perl5},lib64,libexec,share/{aclocal,doc,info,locale/{af,be,bg,ca,ca.us-ascii,cs,da,de,de.us-ascii,de_AT,el,en@boldquot,en@quot,eo,es,et,eu,fi,fr,ga,gl,he,hr,hu,id,is,it,ja,ko,ms,nb,nl,nn,no.us-ascii,pa,pl,pt,pt.us-ascii,pt_BR,pt_BR.us-ascii,pt_PT,ro,ru,rw,sk,sl,sr,sv,tr,uk,vi,zh_CN,zh_HK,zh_TW}/LC_MESSAGES,man/man{1..8}}}/.gitkeep
mkdir -p "${STOW_PKGS_TARGET}"
stow --target="${STOW_PKGS_TARGET}" --no-folding dir_struct
# Without the above, you will get this error after running the first stow command
# below.
# WARNING! stowing master would cause conflicts:
#   * existing target is not owned by stow: bin
#   All operations aborted.

# Final structure of the stow/ dir:
#   stow
#   ├── dir_struct
#   ├── dotfiles <-- This is ${STOW_DOTFILES_ROOT}
#   ├── pub_dotfiles <-- This is ${STOW_PUB_DOTFILES_ROOT}
#   └── pkgs <-- This is ${STOW_PKGS_ROOT}

echo "STOW_PKGS_ROOT         = ${STOW_PKGS_ROOT}"
echo "STOW_PKGS_TARGET       = ${STOW_PKGS_TARGET}"
echo "STOW_DOTFILES_ROOT     = ${STOW_DOTFILES_ROOT}"
echo "STOW_PUB_DOTFILES_ROOT = ${STOW_PUB_DOTFILES_ROOT}"
echo ""

echo "Stowing .."
for pkg in "${pkgs[@]}"
do
    pkg_name=$(echo "${pkg}" | grep -Po '^[^ ]+(?=\s*\|\s*.+)')
    pkg_ver=$(echo "${pkg}" | grep -Po '^.+\|\s*\K[^ ]+')
    # https://unix.stackexchange.com/a/59250/57923
    printf "  %-15s version %s\\n" "${pkg_name}" "${pkg_ver}"
    eval "stow --target=${STOW_PKGS_TARGET} \
               ${verbose_switch} ${ignore_switch} \
               --dir=${STOW_PKGS_ROOT}/${pkg_name} \
               --restow ${pkg_ver}"
done
echo ""

stowed_info_dir="${STOW_PKGS_TARGET}/share/info"
echo "Updating the ${stowed_info_dir}/dir file with .."
cd "${stowed_info_dir}"
for infofile in *.info
do
    echo "  ${stowed_info_dir}/${infofile}"
    install-info "${infofile}" "${stowed_info_dir}/dir"
done
echo ""

echo "Stowing 'work' dotfiles from ${STOW_DOTFILES_ROOT} .."
cd "${STOW_DOTFILES_ROOT}" || exit
IFS=$' '                        # Join array elements with spaces
echo "  ${dotfiles[*]}"
eval "stow --dotfiles ${ignore_switch} --target=${HOME} ${dotfiles[*]}"
echo ""

echo "Stowing 'public' dotfiles from ${STOW_PUB_DOTFILES_ROOT} .."
cd "${STOW_PUB_DOTFILES_ROOT}" || exit
IFS=$' '                        # Join array elements with spaces
echo "  to $HOME: ${pub_dotfiles[*]} .."
eval "stow --dotfiles ${ignore_switch} --target=${HOME} ${pub_dotfiles[*]}"
echo "  to $HOME/.config: ${pub_config_dotfiles[*]} .."
eval "stow --dotfiles ${ignore_switch} --target=${HOME}/.config ${pub_config_dotfiles[*]}"
echo ""

cd "${here}" || exit
echo "Stowed!"


# http://git.savannah.gnu.org/cgit/stow.git/plain/NEWS
# When using --dotfiles option, if a stow package contains a "dot-foo" file or
# dir, then ".foo" link is created in the target. (Note that a hyphen (-) is
# needed after "dot"; underscore (_) will not work.