Some project folder setup script.

@@register.sh

#!/bin/bash

# Registers a project into the project management lifesystem.
# This automatically sets up Git, may add to lookup tables (if
# AUTHOR, LANGUAGE or MONTH parameters are specified).

# It will not set up the link from @public for you. To do this,
# you will want to instead use:
#
#     ./@@publish my_repo
#
# It can be reverted using './@@unpublish'.

# Public repositories may be served via HTTP.


#------
set -o errexit


# Important values

PROJDIR="$(pwd)"

REPODIR="$(readlink -f "$PROJDIR")/$1"
REPONAME="$(basename "$1")"
REPONAME_GIT="$(echo "$REPONAME" | tr -d ' ')"

REPODIR_GIT="$(readlink -f "$PROJDIR")/@git/$REPONAME_GIT.git"


# Common functions

function register_by {
    FOLDER="$1"
    PARAMETER="$2"

    if [ -n "$PARAMETER" ]; then
        mkdir -pv "$FOLDER/$PARAMETER"
        
        if [ ! -f "$FOLDER/$PARAMETER/$REPONAME" ]; then
            ln -sv "$REPODIR" "$FOLDER/$PARAMETER/$REPONAME"
        fi
    fi
}

function fix_register_by {
    FOLDER="$1"
    PARAMETER="$2"

    if [ -n "$PARAMETER" ]; then
        if [ ! -L "$FOLDER/$PARAMETER/$REPONAME" ]; then
            register_by "$1" "$2"
            printf 'F'
        fi
    fi
}

function setup_git {
    # Makes a bare repository, which is where changes
    # to your project will be first pushed. This repository
    # may be relayed to an external service, like GitHub.
    # distribution via HTTP, FTP, or SSH.

    mkdir -pv "@git"
    (
        cd "$PROJDIR/@git"
        git clone --bare --mirror "$REPODIR" "$REPONAME_GIT.git"
    
        cd "$REPONAME_GIT.git"
    
        if [ -n "$GITHUB" ]; then
            # Adds a GitHub remote to this repository.
            # Note: $GITHUB must be in the format "<username>/<reponame>"
            #       where 'username' is the GitHub user, and 'reponame'
            #       is the name of the GitHub repository.
            git remote add github "https://www.github.com/$GITHUB"
            echo "git push gitlab \$(git rev-parse --symbolic --abbrev-ref \$1)" >>"hooks/post-receive"
        fi

        if [ -n "$GITLAB" ]; then
            # Adds a GitLab remote to this repository.
            # Note: $GITLAB must be in the format "<username>/<reponame>",
            #       where 'username' is the GitLab user, and 'reponame'
            #       is the name of the GitLab repository.
            git remote add gitlab "https://www.gitlab.com/$GITLAB"
            echo "git push gitlab \$(git rev-parse --symbolic --abbrev-ref \$1)" >>"hooks/post-receive"
        fi
    
        touch ".registered" # this prevents registering the same project multiple times
    )
}

function fix_git_setup {
    if [ ! -d "$REPODIR_GIT" ]; then
        setup_git
        printf 'F'
    fi
}

# Prevent multiple registrations of the same project.

if [ -f "@git/$REPONAME_GIT/.registered" ]; then
    >&2 echo "This project was already registered! Checking for basic fixes to apply..."

    FIXED="$(
        fix_register_by "@by/@author" "$AUTHOR"
        fix_register_by "@by/@language" "$LANGUAGE"
        fix_register_by "@by/@month" "$MONTH"

        fix_git_folder
    )"

    if [ -n "$FIXED" ]; then
        FIXES="$(printf "%s" "$FIXED" | wc -c)"
        echo "Applied $FIXES basic fixes."
    fi

    echo "Please note this is not a watertight solution. You may still need to"
    echo "manually set up ."
fi


# Add project to lookup directories.

register_by "@by/@author" "$AUTHOR"
register_by "@by/@language" "$LANGUAGE"
register_by "@by/@month" "$MONTH"


# Run git commands on subshells, to prevent changing
# the working directory of the main script.

setup_git