copy-theme

#!/usr/bin/env bash

__SOURCE__="${BASH_SOURCE[0]}"
while [[ -h "${__SOURCE__}" ]]; do
    __SOURCE__="$(find "${__SOURCE__}" -type l -ls | sed -n 's@^.* -> \(.*\)@\1@p')"
done
__DIR__="$(cd -P "$(dirname "${__SOURCE__}")" && pwd)"
__NAME__="${__SOURCE__##*/}"
__AUTHOR__='S0AndS0'
__DESCRIPTION__='Copies named theme files to named repository and git commits the changes'


## Provides 'failure'
# source "${__DIR__}/shared_functions/modules/trap-failure/failure.sh"
# trap 'failure "LINENO" "BASH_LINENO" "${BASH_COMMAND}" "${?}"' ERR

## Provides: argument_parser <arg-array-reference> <acceptable-arg-reference>
source "${__DIR__}/shared_functions/modules/argument-parser/argument-parser.sh"

## Provides: git_add_commit <string>
source "${__DIR__}/shared_functions/git_shortcuts"

## Provides: __license__ <description> <author>
source "${__DIR__}/shared_functions/license"


usage(){
    _message="${1}"
    _repo_name="${_repo_name:-repository-name}"
    _theme_name="${_theme_name:-theme-name}"
    cat <<EOF
## Usage
# ssh ${USER}@host-or-ip ${__NAME__} ${_git_args[@]:-repository-name}
#
# ${__DESCRIPTION__}
#
# -t    --theme --theme-name=${_theme_name}
#  Name of theme to copy to ${_repo_name} source directory
#
# ${_repo_name}
#  Name of repository to initialize or add Jekyll gh-pages branch to
#
# -l --license
# Shows script or project license then exits
#
# -h    --help help
#  Displays this message and exits
#
## Available theme names
#
$(for _name in ${_available_theme_names[@]}; do printf '# %s\n' "${_name}"; done)
#
EOF
    (("${#_message}")) && [[ "${_message}" != '0' ]] && {
        printf >&2 'Error - %s\n' "${_message}"
    }
}

_args=("${@:?# No arguments provided try: ${__NAME__} help}")
_valid_args=('--help|-h|help:bool'
             '--license|-l|license:bool'
             '--theme-name|--theme|-t:posix'
             '--repo-name:posix-nil')
argument_parser '_args' '_valid_args'
_exit_status="$?"

if ((_help)) || ((_exit_status)); then
    usage "${_exit_status}"
    exit "$?"
elif ((_license)); then
    __license__ "${__DESCRIPTION__}" "${__AUTHOR__}"
    exit 0
fi


(("${#_repo_name}")) || {
    usage 'missing repository name argument!'
    exit "1"
}


source "${HOME}/.bash_aliases" || exit 1
_gem_user_version="$(gem env | awk -F'/' '/USER INSTALLATION DIRECTORY:/{print $NF}')"
_gem_user_install_dir="${HOME}/.bundle/install/ruby/${_gem_user_version}/gems"

_available_theme_paths=()
_available_theme_names=()
for _path in "${_gem_user_install_dir}/jekyll-theme-"*; do
    ## Strip file path and 'jekyll-theme-' header
    _name="${_path##*/jekyll-theme-}"
    ## Strip version from end
    _name="${_name%-*}"
    _available_theme_paths+=("${_path}")
    _available_theme_names+=("${_name}")
done

_git_path="${HOME}/git/${_repo_name}"
_jekyll_config_yml_path="${_git_path}/_config.yml"
_old_PWD="${PWD}"
[[ -d "${_git_path}" ]] && { cd "${_git_path}"; }

## To-do, get following results without tripping trap for failure
_git_dir="$(git rev-parse --git-dir 2>/dev/null)"
[[ "${_git_path}/${_git_dir}" != "${_git_path}/.git" ]] || ! [[ -f "${_jekyll_config_yml_path}" ]] && {
    printf >&2 '# Repository %s not initialized correctly\n' "${_repo_name}"
    [[ -e "${HOME}/git-shell-commands/jekyll-init" ]] && {
      printf >&2 '# Try: ssh ${USER}@host-or-ip jekyll-init %s\n' "${_repo_name}"
    }
    exit 1
}

[[ -n "${_theme_name}" ]] || {
  _theme_name="$(awk '/theme:/{print $2}' "${_jekyll_config_yml_path}")"
}
(("${#_theme_name}")) || {
    usage 'cannot find theme name!'
    exit "1"
}


for _theme_path in "${_available_theme_paths[@]}"; do
    case "${_theme_path}" in
        *"/jekyll-theme-${_theme_name}"*)
            _chosen_theme_path="${_theme_path}"
            _chosen_theme_name="${_chosen_theme_path##*/jekyll-theme-}"
            _chosen_theme_name="${_chosen_theme_name%-*}"
            break
        ;;
    esac
done
! (("${#_chosen_theme_name}")) || ! [[ -d "${_chosen_theme_path}" ]] && {
    usage
    exit "$?";
}


for _path in $(ls -1 "${_chosen_theme_path}"); do
    [[ -d "${_chosen_theme_path}/${_path}" ]] || {
        continue
    }
    rsync -av --progress "${_chosen_theme_path}/${_path}" "${_git_path}/" --exclude "assets/fonts"
    # cp -vr "${_chosen_theme_path}/${_path}" "${_git_path}/"
done
[[ -f "${_chosen_theme_path}/LICENSE" ]] && {
    cp -v "${_chosen_theme_path}/LICENSE" "${_git_path}/LICENSE_${_chosen_theme_name}"
}


git_add_commit "Addes files from ${_chosen_theme_name}"

printf '# %s finished\n' "${__NAME__}"